
Manufacturing, assembly and repair of custom plastic fabrications – containers, pipelines and milling work with express delivery.
Kunststoff Vor Ort Service (KVOS) GmbH & Co. KG
VelbertNew on Amplifa
About KVOS
Kunststoff Vor Ort Service (KVOS) GmbH & Co. KG from Velbert is a certified master workshop (Meisterbetrieb) for plastic components made in its own production. The company manufactures custom fabrications such as containers, pipes, valves and milled made-to-order parts as well as accessories and spare parts for industrial plants. Production includes plastic-appropriate processes such as manual and extrusion welding, machine welding of sheet segments, butt welding of piping, electrofusion couplings and the gluing of PVC piping according to chemical requirements. In addition, KVOS offers on-site measuring and personal consultation, assembly of components in the customer's plant environment as well as repair and maintenance including emergency and express service with an on-site appointment within one week. Material properties such as UV and chemical resistance are taken into account in material consultation. Customers come from the chemical industry, power plant and waste incineration plants, waste management, the automotive industry and plant engineering; deliveries are made to Germany and neighbouring European countries.
- Site
- Velbert
- Processes
- Plastic milling work (made-to-order work), Plastic container construction (incl. replacement, machine welding of sheet segments), Plastic pipeline construction (installation, manufacturing), Manual and extrusion welding of plastics, Machine welding of sheet segments, Butt welding of piping, Electrofusion coupling connection, Gluing of PVC piping according to chemical requirements
- Materials
- PVC, Plastic (advised depending on material, no concrete types named), Extrusion welding, Butt welding
- Certificates
- Certified specialist company under the Water Resources Act, Certified specialist company under WHG
- Industries
- Chemical industry, Power plant / Waste incineration, Waste management / Disposal, Automotive industry, Plant engineering / Maintenance
- 01
On-site measuring and personal consultation
- 02
Material consultation (UV/chemical resistance)
- 03
Manufacturing in the master workshop (container and pipeline construction,
- 04
On-site assembly
- 05
Repair and maintenance incl. emergency/express service
Materials & Processes
PVC
Used in pipeline construction, including gluing of PVC piping according to chemical requirements.
Extrusion welding
Manual and extrusion welding processes for containers, sheet segments and plastic piping.
Butt welding
Machine butt welding of piping and electrofusion coupling connections.
Velbert Site

Velbert
DEHeadquarters / Manufacturing (master workshop)
- Lot size
- One-off fabrications, express orders
- Materials
- PVC, plastic
- Manual and extrusion welding machines
- Milling work (made-to-order)
Components & Services




Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plastic milling work (made-to-order work)Plastics | – | – | – | – | Plastic |
| Plastic container construction (incl. replacement, machine welding of sheet segments)Plastics | – | – | – | – | Plastic, PVC |
| Plastic pipeline construction (installation, manufacturing)Plastics | – | – | – | – | PVC, Plastic |
| Manual and extrusion welding of plasticsJoining | – | – | – | – | Plastic |
| Machine welding of sheet segmentsJoining | – | – | – | – | Plastic |
| Butt welding of pipingJoining | – | – | – | – | Plastic |
| Electrofusion coupling connectionJoining | – | – | – | – | Plastic |
| Gluing of PVC piping according to chemical requirementsJoining | – | – | – | – | PVC |
| On-site assembly of plastic components (measuring, installation)Assembly | – | – | – | – | Plastic |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Manual and extrusion welding machines | – | – | – | – | Velbert |
Additional services
Reference customers
Quality & Certification
KVOS is a certified specialist company under the Water Resources Act (TÜV NORD) and manufactures in its own master workshop in order to control material and processing quality itself.
| Evidence | Velbert |
|---|---|
| Certified specialist company under WHG |