In early 2021, VK Avtotransportnyk LLC approached TWEKO for the installation of painting equipment — an Italian TERMOMECCANICA GL painting and drying chamber in Ukraine, measuring 16×5×5 m — as well as the design of ventilation for the painting workshop. After negotiations with several companies, the client chose TWEKO for its professional approach, and we successfully completed the project, ensuring not only high-quality painting of specialized vehicles but also improved personnel safety, consistent results, and optimized coating material costs.

About the Company

VK Avtotransportnyk LLC is a manufacturing complex in Fastiv, Kyiv Region, operating since the 1950s and specializing in the production and maintenance of commercial and specialized vehicles. Since 2019, the company has been producing vehicles under its own AVTR brand, having obtained an international vehicle manufacturer certificate. Its product range includes aerial platforms, truck cranes, vacuum trucks, garbage trucks, emergency repair vehicles, and water transport tanks, including for the Ministry of Defense of Ukraine. The company also provides maintenance, repair, and retrofitting services, offering mobile on-site teams and collaborating with leading brands such as IVECO, RENAULT, and PALFINGER, enabling the use of reliable components. Its clients include Epicentr, Naftogaz, and Interpipe, reflecting its strong market reputation.

The project aimed to ensure high-quality application of coatings on vehicles repaired at the facility. This required the installation of a modern Italian-made painting and drying chamber and the development of an efficient ventilation system. A particular challenge was the lack of a prepared foundation for the equipment, necessitating additional work.

Painting and Drying Chamber

• Spacious working area: 16×5×5 m, making the chamber ideal as a painting chamber for heavy vehicles and large specialized equipment.
• Two zones: separated by gates into 8×5×5 m sections for painting and drying, providing flexibility and process efficiency.
• Reliability: the chamber meets high-quality standards required for professional painting of specialized vehicles.

Design of the Ventilation System for the Painting Workshop

• Thoughtful design: developed considering the workshop’s specifics, maintaining necessary cross-sections and airflow capacity.
• Precision engineering: TWEKO provided detailed drawings, enabling the client to independently manufacture and install air ducts without issues.
• Efficiency: the system ensures optimal air circulation for the chamber’s operation, creating ideal painting conditions.

Project Implementation: Installation of the Painting Chamber and Ventilation

After signing the contract, TWEKO, in collaboration with the client’s builders, developed a foundation work plan, aligning all technical details. During the foundation pouring, our specialists regularly monitored the process, addressing any issues. The installation of the painting equipment was completed ahead of schedule while adhering to all safety standards. A qualified TWEKO engineer conducted commissioning, ensuring flawless operation of the Italian equipment. TWEKO’s design department developed tailored air duct lines, creating optimal conditions for the chamber’s performance. All work was completed ahead of schedule, highlighting the professionalism and coordination of the TWEKO team:

1. The modernized painting workshop of VK Avtotransportnyk LLC meets high-quality standards.
2. Advanced equipment and well-designed ventilation ensure impeccable coating application on specialized vehicles.
3. Precise drawings from TWEKO enabled the client to efficiently manufacture and install air ducts.

Planning to modernize your painting workshop? Contact us for a tailored solution!

Request a Quote

The sales department of our company received a request from representatives of the company “Krug-TET“, which is located in Cherkassy, ​​for the development and manufacture of a painting chamber for two work stations. Purpose – for painting KUNGs, vehicles and accessories for expedition vehicles based on trucks of various sizes. It was decided to manufacture a passage-type camera, which is a great advantage over dead-end cameras.

The painting chamber is retrofitted with gas detectors, which measure the concentration of flammable gases to an explosive state and signal the presence of such a concentration, having several response thresholds. This alarm reacts to fumes and gases from solvents, varnishes and paints from all manufacturers of such materials.

These posts are combined into one painting chamber, but they have 2 completely different ways of using, namely:

• when the gates separating them inside the chamber are closed, the posts work independently of each other, have their own automatics and controls, in turn, I manage the supply and exhaust ventilation systems, as well as heating the paint-and-lacquer coating area (or drying it) independently of each other. This makes it possible to paint several medium-sized items independently of each other with different materials, at different temperatures and at different pressures at each post. Or paint products at one station and dry the painted products at another, thereby saving time in the production process.
  when the gates are open inside the premises, the posts work as one large chamber, the automation system regulates two posts at the same time, which allows painting and drying large-sized items that cannot be accommodated in one post.
• the painting chamber (painting and drying) was designed in such a way that the groups of supply and exhaust ventilation, as well as air heating, were in one room, the camera cabin was in another room, and the controls were in a dedicated room.
  The installation of this camera was carried out according to the planned schedule and in accordance with the contract. The customer prepared the premises, holes in the walls and pits according to the drawings, before the start of work, according to the provided design documentation. The equipment was designed for the customer’s premises so clearly that the distance between the ceiling of the chamber and the ceiling of the existing workshop is only 10 mm.

The installation of supply and exhaust ventilation ducts and chimneys was carried out by materials and specialists of the involved contractor, which was hired by the customer. All work on laying the air ducts was carried out according to the conceptual solution provided and the drawings of our design office.

During the commissioning work, our specialists trained the customer’s personnel in the use of the equipment, the principles of its operation, and safety precautions during the operation of the equipment.

For several months of active operation, the customer’s painters expressed a desire to increase the illumination at the ends and at the bottom of one of the products, which is painted in a large painting station. Therefore, it was decided to modernize the lighting system at this post of the spray booth. For this, all the wishes of the painter, the angle of inclination of the lamp, the location of the product and the height of the working area in which there is not enough lighting for high-quality application of paints and varnishes were taken into account. Specialists of our technical department, design office and production have developed and manufactured side lamps with end caps. They were installed at the corners of the painting station, this position did not reduce the space at the painting station, and completely satisfied the customer’s painters.

At the moment, the equipment is operating normally, the customer is completely satisfied with the equipment and its work, as evidenced by the letter of review.

Gran-Premier LLC, a leader in the production of high-quality wooden interiors, aimed to modernize its grinding and painting facilities to enhance efficiency and improve working conditions. After a thorough search for a reliable supplier, the company chose Techservice VEKO and Partner GmbH LLC, a renowned manufacturer of painting equipment and a market leader with an impeccable reputation in service support.

Collaboration with Techservice VEKO and Partner GmbH LLC began with a detailed discussion of Gran-Premier’s needs. TWEKO specialists carefully analyzed all technical aspects and developed a tailored solution that met the unique requirements of the production process.

Key elements of the modernization project included:

• Design of an exclusive painting chamber: TWEKO engineered a painting chamber perfectly suited for limited spaces with protrusions, providing maximum natural lighting through large double-glazed windows.
• Selection of an aspiration system: To maintain a clean and safe working environment, an aspiration system was selected and installed to effectively remove dust and other contaminants from the grinding area.
• Energy-efficient equipment: The painting chamber is equipped with an electric heat exchanger for cost-effective and environmentally friendly air heating.

In May 2021, the modernized grinding and painting facilities of Gran-Premier were successfully commissioned.

The results of the collaboration with Techservice VEKO and Partner GmbH LLC exceeded all of Gran-Premier’s expectations:

1. Increased productivity: Thanks to the modernized equipment, the production process became significantly faster and more efficient.
2. Improved quality: The new equipment ensures flawless painting and finishing, meeting the highest standards.
3. Safe working conditions: The aspiration system and modern equipment minimize health risks for personnel, creating a healthy and safe working environment.

Gran-Premier LLC gladly recommends Techservice VEKO and Partner GmbH LLC as a reliable and responsible partner in the modernization of industrial equipment. The company highly values TWEKO’s professionalism, tailored approach, and impeccable service.

In February 2021, TDC Ukrspetstekhnika approached Techservice VEKO and Partner GmbH LLC to modernize its painting facility and enhance the efficiency of the painting process. TWEKO proposed and implemented a custom-designed painting and drying chamber, model FРЅ-2.5, which perfectly matched the specifics of the client’s existing premises.

TDC Ukrspetstekhnika, part of the TDC group of companies and an official supplier of leading global brands of specialized machinery, contacted TWEKO to modernize its painting process and create a safe, cost-effective, and productive working environment. The collaboration resulted in a tailored solution for equipping the painting facility, fully meeting the client’s needs and successfully implemented within the agreed timelines.

TDC Ukrspetstekhnika offers a wide range of services, including:

1. In-house production of forklifts, ensuring high quality and reliability of the machinery.
2. Sales of specialized machinery and spare parts from renowned global brands.
3. Professional service and warranty support for all sold machinery.
4. Diagnostics and repair of specialized machinery at modern service centers with experienced specialists.

After a thorough search for a reliable supplier of painting equipment, TDC Ukrspetstekhnika chose TWEKO, a well-known equipment manufacturer with an impeccable reputation and extensive experience.

The project for TDC Ukrspetstekhnika exemplified TWEKO’s effective implementation of a custom solution:

• Custom Design: Specialists from Techservice VEKO and Partner GmbH LLC designed a painting and drying chamber КФ.000.00.00-ENERGY, model FРЅ-2.5, perfectly suited to the existing premises of Ukrspetstekhnika.
• Comprehensive Solution: The chamber includes an exhaust cabinet with dry filtration of used air and supply ventilation with air heating via an electric heat exchanger.
• Quality and Reliability: The chamber is made from high-quality materials and components, ensuring durability and uninterrupted operation.
• Precision Execution: The chamber was manufactured, delivered, and installed within the agreed timelines, fully complying with all contract requirements.

The equipment was manufactured, installed, and commissioned within the specified timelines. During operation, it has proven to be reliable, efficient, and fully compliant with the stated specifications.

As a result of the collaboration, Ukrspetstekhnika received:

1. Efficient Painting Chamber: Thanks to innovative technologies and high-quality equipment, the painting and drying process became significantly faster and more efficient.
2. Clean and Safe Working Environment: Dry filtration of used air and supply ventilation with heating ensure a clean and safe working environment for personnel.
3. Cost Savings: The use of an electric heat exchanger for air heating makes the chamber’s operation more economical.

TDC Ukrspetstekhnika recommends Techservice VEKO and Partner GmbH LLC as a reliable and responsible partner in the supply of painting and drying equipment.

In 2021, TWEKO successfully completed a project’s implementation of a painting facility for Mashhydropryvod LLC, one of the leaders in the Ukrainian hydraulic equipment market. The installed equipment significantly optimized production processes and improved the quality of paint coatings.

Painting Line

In April 2020, the company Mashhydropryvod LLC (MHP) contacted us with a request to supply equipment for painting and drying their products.

After thoroughly analyzing Mashhydropryvod LLC’s technical requirements, we developed and proposed our solution for the layout and equipment composition (painting line). TWEKO’s recommendations allowed us to fully meet production needs and streamline work processes.

Our specialists also calculated and justified the optimal set of technological equipment. This fully meets production requirements and significantly reduces additional work processes on the painting line.

Thanks to the efficient work of the sales department and the productive efforts of our engineers, after lengthy pre-contract negotiations, our company was selected as the supplier and contractor for this project. According to Mashhydropryvod LLC, the specialists from Techservice VEKO and Partner GmbH demonstrated the most rational approach to project implementation. Additionally, TWEKO has its own production facility (located in Kyiv) and a design department, allowing for prompt project adjustments before the contract is signed.

The painting line for MHP included:

Based on the technical requirements, TWEKO developed and supplied a set of equipment:

• Painting chamber KFS.000.00.00-ENERGY (2 sets):
  • Working area dimensions: 4000 × 4000 × 2500 mm.
  • Components: 2 exhaust cabinets with water curtain (2000 × 600 × 2300 mm), supply ventilation with electric heating, high-quality in-house lighting.
• Drying chamber KS.000.00.00-ENERGY (1 set):
  • Working area dimensions: 4000 × 4000 × 2500 mm.
  • Drying temperature: up to 100°C.
• Paint preparation room (1 set):
  • Working area dimensions: 4060 × 4000 × 2500 mm.

Advantages

1. Optimization of production processes through a well-thought-out layout.
2. High-quality paint coating for products.
3. Reliability and uninterrupted operation in intensive mode.
4. Reduced processing time thanks to efficient equipment.

The equipment was manufactured in accordance with all customer requirements, using energy-efficient solutions and high-quality materials.

Implementation

In April 2021, Techservice VEKO and Partner GmbH completed commissioning works, put the equipment into operation, and signed all necessary documents. By October 2021, operating in a three-shift mode, Mashhydropryvod LLC reported no issues, and everything functioned normally.

We invite you to cooperate!

Last year, 2020, we were approached by the customer Kharkiv Design Bureau for Mechanical Engineering named O.O. Morozov with a request to purchase a painting and drying booth (FSK) for painting military equipment and metal structures of its own production. State Enterprise Kharkov Design Bureau for Mechanical Engineering named after A.A. Morozov (SE “KMDB”) is part of the state concern “Ukroboronprom” and is a leading developer and manufacturer of armored vehicles in Ukraine.

AREAS OF ACTIVITY SE “KMDB”:

• development of heavy tracked vehicles (tanks, heavy infantry fighting vehicles, engineering and recovery vehicles);
• development of wheeled vehicles 4×4, 6×6, 8×8, multi-purpose chassis 10×10;
• development and production of complex and tactical simulators on dynamic platforms for any types of armored vehicles;
• development and production of remotely controlled combat modules with weapons of caliber from 7.62 mm to 30 mm;
• serial production of BTR-4E armored personnel carriers and vehicles based on them.

Also civilian products and research activities:

Special machines;
Hydraulic equipment;
Equipment for non-ferrous metallurgy;
Equipment for the fuel and energy complex;
Computational studies, volumetric hydraulic drives,
Stands for testing power plants,
Manufacturing of folding parts.
COMPOSITION OF THE PROJECT

According to the terms of reference, the project included:

Painting and drying chamber with drying temperature up to 90C;
Spare parts kit – spare parts, tools and accessories for FGC for 2 years of operation;
Rail transport trolley on cable traction with built-in tilting device;
Foundation slab with built-in underground air ducts;
Laying of air ducts for FGC;
Connection of energy carriers to FGC;
Installation, commissioning, training of the customer’s personnel and painting of test parts.
Rack-and-pinion rope-drawn transport trolley (RTK)

RTK with a built-in tilting device for moving products into the chamber. The rack-and-pinion transport trolley on a cable traction (hereinafter referred to as the “trolley”) is designed to move products between the working areas of the paint department.

The trolley is a simple, reliable option for delivering parts for processing to industrial paint and sand/shot blast rooms. All electrical installations are removed from premises with an explosive or flammable environment, which allows the use of this type of trolley in category A premises.

Painting and drying chamber

FSK with dry filters is designed for preparation, painting and subsequent drying of surfaces of various products of the plant. The chamber operation processes meet all the demanding requirements for labor protection of workers during painting. The application of the paintwork is carried out by pneumatic manual spraying. Drying of a paint and varnish covering is made at a temperature of 90C!! FGC works on the principle of “dry” filtration of the supplied air using coarse and fine filters made of synthetic materials. This is exactly what the customer needs. The painting and drying chamber consists of a cabin, heat-ventilation units, filters for air purification from harmful impurities, a lighting system, a control panel and other parts.

OPERATING PRINCIPLE OF FGC KMDB

Coloring mode

During the painting process, the air passes through the air intake valve, then enters the pre-filter, then follows through the tidal fan, passes through the heat exchanger, where it is heated, and from there through the ceiling fine filter enters the camera cabin. The air containing paint mist particles is filtered through the floor filter, passes through the ejection damper and is discharged outside with the help of an exhaust fan. The recirculation gate is closed at this time.

Drying principle

The chamber works on the principle of circulation with the partial addition of “fresh” air and dry filtration. The drying mode works offline: the operator needs to set the required drying holding time and temperature. The mode consists of three cycles:

• Purge cycle
• Drying cycle
• Refrigeration cycle

3. Refrigeration cycle

This cycle is necessary to cool the dried product and the heat exchanger unit. After the end of the cycle, the camera automatically stops and goes into standby mode.

CAMERA SPECIFICATIONS

In 2020, the State Enterprise “Kharkiv Design Bureau A.A. Morozov” started a large-scale reconstruction of the painting department. The purpose of the event: To modernize production facilities, improve the environmental standards of their production and improve the quality of the paintwork of their company’s products. The section for painting oversized parts of armored personnel carriers, produced by SE KMDB, needed a new spray booth with a water curtain. Therefore, in order to select an equipment supplier, the customer announced a tender procedure on the official electronic public procurement platform Prozorro.

According to the terms of the tender procedure, the equipment delivery set included:

• Spray booth with a water curtain with dimensions of at least 5000 x 2000 x 2000mm,
• Preparation of the foundation for the installation of equipment,
• railroad laying,
• Installation of conveyors for supplying large-sized parts to the working area in a suspended position. The weight of large-sized parts (which are planned to be hung) is not more than 500 kg.
• Fabrication and installation of exhaust ducts.

Reconstruction of the painting department

Before submitting the tender proposal, the specialists of Techservice VECO and Partner GmbH LLC made a trip to the future, the customers of the State Enterprise Kharkov Design Bureau A.A. Morozov” and studied in detail the existing painting area, the equipment installation site, engineering communications for connecting the equipment, the state of the foundation for installing the equipment, and provided recommendations and several options for laying a rail track, which in the future will carry out the movement of products on the customer’s trolley. Also, our specialists examined small and large-sized parts for painting. The room for the installation of exhaust ducts was inspected

After winning the tender, the already existing equipment at the paint shop (which was manufactured back in the 1970s) was dismantled and disposed of. After that, as part of the contract, the site was prepared for the installation of new equipment, a new rail track was laid, trolleys were installed for moving products and a new spray booth with an efficient water filtration system was installed.

Results

Thanks to the new equipment of the State Enterprise “Kharkov Design Bureau A.A. Morozov” have significantly reduced emissions of harmful substances and increased the speed of applying paintwork to products.

All equipment and works were performed in accordance with the terms of reference and tender documentation, therefore the State Enterprise “Kharkov Design Bureau A.A. Morozov” recommends us LLC “Techservice VECO and partner GmbH” as a reliable manufacturer of equipment for painting areas. As evidenced by the letter of review, which is posted below.

Successful Collaboration with Vektor Kapital Investment Company LLC — Implementation of a Custom Paint Booth Project

At the end of 2018, Vektor Kapital Investment Company LLC approached TWEKO (Techservice VEKO and Partner GmbH LLC), a leading equipment manufacturer known for its impeccable reputation, with a request for a paint and drying booth. After a thorough search for a reliable partner, Vektor Kapital chose us for our expertise and innovative solutions.

The client’s goal was to acquire efficient painting and drying equipment while dealing with limited production space and the inability to install underground exhaust ducts.

Our Solution

TWEKO specialists carefully analyzed the client’s technical requirements and developed a custom solution — a dead-end paint and drying booth with a working area of 7×3.5×2.7 m, tailored to space-constrained production facilities. The booth was installed on a flat outdoor surface, requiring no major construction or additional utilities beyond electricity. This approach significantly reduced installation time and overall project costs.

To meet the client’s specific needs, we delivered a comprehensive solution that combined engineering precision, adaptation to production conditions, and cost optimization. Key elements of this solution included:

• Tailored Approach: TWEKO specialists thoroughly assessed Vektor Kapital’s requirements and proposed an optimal solution adapted to the limited available space.
• Innovative Design: Instead of a traditional booth with underground exhaust ducts, we offered a solution from the AKFS Electro series, model “KFS.000.00.00-Energy,” designed for outdoor installation and requiring no additional construction work.
• Quality and Reliability: The booth is constructed using high-quality materials and components, ensuring long-term durability and dependable operation.
• On-Time Delivery: The booth was manufactured and installed within the agreed timeline, fully meeting all contractual obligations.

The paint and drying booth was manufactured, installed, and commissioned in May 2019. Since then, it has been operating reliably, delivering efficiency and high-quality finishes in the client’s production process.

Client Benefits:

1. Accelerated and enhanced painting and drying performance through advanced technology.
2. Space savings by utilizing outdoor installation, freeing up indoor production areas.
3. Cost savings due to efficient electric heating.
4. Long-lasting performance and reliability thanks to premium-quality materials.
5. Streamlined installation with no need for additional utility connections.

As a result of this project, Vektor Kapital received a fully customized solution that met all expectations in terms of quality, deadlines, and technical specifications. The professionalism of the TWEKO team, well-organized execution, and commitment to contractual obligations earned a positive review:

This successful experience highlights how the right partnership can significantly boost your production efficiency.

This case demonstrates that choosing a reliable partner is the key to success. TWEKO (Techservice VEKO and Partner GmbH LLC) delivers innovative, high-quality, and cost-effective solutions tailored to your business.

In 2021, TWEKO completed a project to supply and install a painting and drying complex for the V.O. Malyshev Plant, a leading Ukrainian manufacturer of specialized military equipment. The complex significantly enhanced the efficiency of painting processes and the quality of product finishing.

In September 2020, the V.O. Malyshev Plant announced a tender for the supply of a painting and drying complex as part of the enterprise’s technical re-equipment program. The technical specification, approved by the chief engineer, outlined a full project cycle: design, manufacturing, delivery, installation, and commissioning.

In accordance with Ukrainian legislation, an open tender procedure was conducted. Based on its results, our company, Techservice VEKO and Partner GmbH, was selected as the winner. The client’s decision was based on our proposal’s compliance with all technical requirements and TWEKO’s reputation as a reliable supplier of comprehensive solutions.

Our competitive edge is driven by in-house production, experienced sales, design, and service department specialists, enabling prompt responses to project challenges and the implementation of changes at all stages. A comprehensive approach to design and flexibility in decision-making make TWEKO a trusted partner for technically complex and large-scale projects.

Project

The project for the V.O. Malyshev Plant is one of the most ambitious and technically challenging in our company’s portfolio. It involved not only the supply and installation of technological equipment but also a range of preparatory construction and installation works, laying a rail track, and setting up engineering utilities. A particular challenge was the development and manufacturing of a custom drying chamber capable of drying large and heavy products at temperatures up to 150 °C — the first of its kind implemented by our company.

Works and Equipment

Under the contract terms, TWEKO carried out:
1. Construction Works:

• Preparation of the floor and ventilation ducts for the painting chamber.
• Floor setup for the drying chamber.
• Laying a rail track and installing a traction winch.
• Manufacturing and installation of air ducts for air supply and exhaust.

2. Equipment Manufacturing and Installation:

• Painting and drying chamber with dimensions (L × W × H) — 11160 × 5660 × 5540 mm.
• Drying chamber with dimensions (L × W × H) — 9240 × 4740 × 4075 mm, drying temperature up to 150 °C, heated by electric heat exchangers.
• Rail transport cart with dimensions 6000 × 2300 × 1100 mm, load capacity of 15 tons.

The successful implementation of this project marked a significant milestone in TWEKO’s development. It allowed our team to gain invaluable practical experience and expand the company’s technical and production capabilities. Each new project enables us to raise the bar even higher.

Advantages

1. High-quality paint coating due to state-of-the-art equipment.
2. Optimized painting processes through a well-designed complex.
3. Reliability and compliance with stringent military production requirements.
4. Effective collaboration at all project stages.

TWEKO completed the full scope of work — from equipment manufacturing to installation and commissioning — with high quality and within the stipulated timelines. Specialists from the design and service departments promptly made necessary adjustments to the project in coordination with the client, ensuring compliance with the technical specifications and tender conditions.

Conclusion

This large-scale project is further proof that TWEKO can handle the most complex technical challenges at the highest level. We are ready to support any enterprise striving for technological advancement.

In 2018, the sales department of our company received a request for a painting and drying chamber and an abrasive blasting chamber from representatives of ZLMZ LLC. In the course of negotiations, lasting a year, we, together with ZLMZ, formed the terms of reference and drew up a detailed plan for the construction of the painting area as a whole. To implement this project, it was necessary, first of all, to carry out work on the design of a new paint area at the enterprise, to coordinate the project with local authorities, to conduct an environmental impact assessment, while observing the strictest fire safety rules…

The next stage after the design was the implementation of construction and installation work – it was necessary to dismantle a concrete base up to 1.5 meters deep, and then equip a foundation slab for installing equipment with built-in technological pits for ventilation and equipment operation, a rail track for supplying products to the working areas of the chambers…

The painting area of ​​production is a rather energy-intensive area. Since to ensure high productivity and safe working conditions, it is required to provide a colossal airflow in the painting chamber – up to 100,000 cubic meters/hour, while heating the air to a delta of 35 ° C in painting mode and up to + 80 ° C in drying mode – such a spray booth, with electric air heating, consumes up to 500 kW/h of electricity. The abrasive blasting chamber consumes up to 12 cubic meters/min, 8 atm, compressed air while consuming up to 50 kW of electricity per hour. The total energy consumption of the painting area reaches 700 kW/h. Naturally, to provide such a volume of electricity, it was necessary to lay a separate power transmission line from the TP, with a length of 240 meters, and this was also included in the scope of work performed by our company within the framework of this project.

The scope of delivery of the equipment included: a painting and drying chamber, an abrasive blasting chamber, two self-propelled rail carts, abrasive blasting machines, airless high-pressure painting machines, a compressor room with receivers and air dryers, a set of lifting-mobile platforms for painting large-sized items, a cabin for storage and making paints…

Paint area

A painting and drying chamber and a dead-end type abrasive blasting chamber are located outside the main production area, adjoining it with a front wall with a gate. Both chambers have an internal size of 16180x6000x5500 millimeters, and together with rail trolleys, they can efficiently handle products with dimensions up to 15000x4000x5000 millimeters and weighing up to 20 tons! Both chambers have excellent energy efficiency, as they are hermetically sealed and made of sandwich panels with a fireproof filler – mineral wool, 100 mm thick. The spray booth has three rows of sealed energy-efficient LED lighting fixtures that provide at least 800 lux of illumination inside the cab, which allows for the best possible paint application on a wide variety of products.

A set of lifting-mobile platforms built into the spray booth allow operators to move quickly inside the booth and handle products up to 6 meters high. The platforms move in three directions – along the entire length along the walls of the chamber, along the entire height of the chamber, as well as from the wall at a distance of up to 1500mm. The platforms are driven by compressed air, which makes them explosion-proof and can be used in a spray booth environment.

The abrasive blasting chamber (KASO) has a system for the automatic collection and regeneration of shots and debris. The scraper floor system is responsible for collection and transportation, which consists of five longitudinal and one transverse line, which moves the shot to the elevator pit with synchronous translational movements. Further, the elevator raises the shot to a height of 7 meters, from where it enters the drum-type separator. In the separator, the shot is sifted and cleaned of large contaminating particles, and fine dust is removed through the dust extraction channels to the filter unit. After passing through the separator, the shot automatically enters the storage hopper in which the abrasive blasting machines are arranged. Thus, the abrasive blasting chamber provides a fully automatic collection, regeneration, and supply of shots for reuse – a closed cycle. The dust removal system is responsible for ensuring safe and comfortable working conditions in KASO, which is represented by two highly efficient filter and ventilation units FVU-18, they promptly remove the dusty gas-air mixture from the chamber, filter it and release it into the atmosphere.

The compressor station is represented by a high-performance screw compressor Remeza VK120, with a productivity of up to 16,000 liters per minute at 8 atmospheres of pressure, and effective installation with an air dryer – freezer, 4 compressed air receivers with a volume of up to 1000 liters each.

The set of equipment includes the Wiwa Airless 140032 RS/F Phoe Airless Painting Machine, the CLEMCO SCWB Shot Blasting Machine – 2452, 200 liters. with a full set of operator’s suit and personal protective equipment. And to ensure fire safety, the painting area is equipped with an automatic powder fire extinguishing system, fire alarm, and its connection to local fire extinguishing services.

Probably, the production of equipment was not the most difficult in the implementation of this project, it was much more difficult to correctly draw up the terms of reference, carry out the design, design development, coordinate all the processes and stages of implementation: construction, laying communications, fire safety… At the same time, observing the strictest security rules labor that operates at the enterprise LLC “ZLMZ”, PJSC “Zaporizhstal” and throughout the Metinvest Holding. And also find reliable contractors, coordinate and organize their work, plan everything and invest in the schedule.

This project gave our company invaluable experience in the implementation of a difficult and complex object, moreover, for one of the largest enterprises in Ukraine – Metinvest Holding! The implementation of such a project once again confirms the ability of our company to create and implement the most complex technological complexes for the painting department of any, even the most demanding Customer.

In 2020, TWEKO modernized the painting workshop of the private enterprise VKP Alfateks, an official dealer of OJSC MAZ in Kremenchuk, by supplying a painting and drying chamber to enhance the quality of coatings on finished products, components, and assemblies.

Objective

The project aimed to improve the quality of applying coatings to finished products, components, and assemblies. After analyzing needs with technical specialists, the production manager, and painters, it was decided to procure equipment with:

• High-quality coating application.
• Efficient air purification and rapid heating.
• Exterior in the company’s branded colors.
• Dimensions of 13,500 × 5,500 × 5,000 mm.

TWEKO was selected among competitors for its optimal solutions and flexibility after market research and evaluation of commercial proposals.

Implementation

After signing the contract for supply and installation, the painting and drying chamber model KFS.000.00.00.-ENERGY “G” was manufactured in accordance with the agreed timelines and quality standards. The equipment installation was carried out promptly and in compliance with all safety regulations. The air supply and exhaust system was partially installed by the client based on TWEKO’s provided drawings, ensuring seamless integration. Comprehensive setup of the air supply and exhaust system was successfully completed, providing optimal conditions for the painting chamber’s operation.

Benefits for the Client

The client highlighted:

1. Powerful airflow and high air purification.
2. Rapid heating and precise temperature control.
3. Reliable operation with regular maintenance.

The modernization of the painting workshop was a successful step for VKP Alfateks, enabling improved product quality and equipment reliability. VKP Alfateks received equipment that operates properly and ensures high-quality coatings.

At the end of February 2020, we received a request for a set of equipment including a painting and blasting booth for metal structures. The production base of the customer’s company is located in the city of Mariupol, Donetsk region. Thanks to a lucky coincidence, our specialists were nearby, in the city of Zaporozhye, promptly responded to the request and went to the customer’s site.

The customer company Azovtekhgaz LLC is engaged in the supply of technical gases, gas mixtures and gas welding equipment, as well as in construction and installation works in various areas of industrial construction. The maximum overall size of products to be processed in chambers is 12x3x3m. Shot-blasting and painting chambers will improve the quality of the paintwork of all metal products manufactured by the company.
The spray booth has two main modes of operation – painting and drying, with operating temperatures of 18-24 C and 20-70 C, respectively. The passage-type chamber has an internal size of 15x5x5m, two sets of sectional doors with an automatic drive are installed in the end walls. The air is heated using three high-performance gas burners, each with a power of up to 350 kW, and stainless steel heat exchangers, designed and manufactured by our company specifically for spray booths. Two side and two ceiling rows of high-performance four-lamp LED luminaires are responsible for lighting in the spray booth, while the illumination level inside the booth is at least 900 lux.

Azovtekhgaz

The main feature of this spray booth model is that it has the ability to work in zones. Three separate thermo-ventilation cabinets, in combination with a specially developed automation and control system, allow you to turn on and operate each zone separately from the rest. Thus, the camera has three zones 5x5x5m, and when painting oversized products, camera operators can use only one or two of the zones. Automation and control systems in this design are three times larger, more expensive and more complex than usual, but due to this, when operating the camera, the costs of electricity and natural gas are significantly reduced!
The abrasive blasting chamber has an internal size similar to the spray booth – 15x5x5m. The chamber has a sealed cabin made in the form of a prefabricated steel structure with sandwich panels. The inside of the cab is lined with an elastic soft material that protects the steel structures of the cab from damage by ricochet shots. The camera is illuminated by two rows of ceiling, located at an angle of 45 °, four-lamp LED luminaires, protected from possible mechanical damage by ricocheting shot. The chamber quickly and effectively cleans the dusty air that forms during the cleaning process; for this, it is equipped with a FVU-30 filter ventilation unit. FVU-30 is one of the models of filtering units developed by our company, it has a productivity of 30,000 cubic meters per hour, 30 cylindrical dust filters and an automatic filter cleaning system.
The blast chamber is equipped with systems for automatic collection and regeneration of abrasive material, dust and debris removal. There are special pits in the foundation of the chamber, which are covered with steel gratings. Shot and debris generated during cleaning is poured into these pits. During operation, they are automatically collected by scrapers and directed to the bucket conveyor pit. The scraper floor is driven by reliable electric drives, which guarantees a long and trouble-free operation of the entire system. After that, the shot that got into the pit of the bucket conveyor rises and goes to the shot regeneration unit – a vibration-type separator. The vibrating separator automatically separates the incoming material into three parts: the debris and impurities are discharged into the debris tank, the dust is discharged to the filtration unit, and the recyclable beads are automatically returned to the shot blasting machine. Thus, in the abrasive blasting chamber, a closed cycle of shot movement is created, while the collection and regeneration of the shot is carried out in a fully automatic mode. All parts and assemblies of the abrasive blasting chamber – FVU, scraper floor, bucket conveyor, vibratory separator are developed by our company specifically for use in abrasive blast chambers, are manufactured at our own production site in Kiev and have an increased degree of reliability and effective protection from damage.