
Custom plastic and metal parts: injection molding, sheet metal and laser technology, surface technology and assembly from Iserlohn.

KW solutions GmbH & Co. KG / KW WORM GmbH & Co. KG
IserlohnNew on Amplifa
About the KW Group
The KW Group, comprising the companies KW solutions GmbH & Co. KG and KW WORM GmbH & Co. KG, manufactures custom plastic and metal parts in Iserlohn according to drawings, requirement specifications or samples. The service portfolio includes plastic injection molding on 18 machines with clamping forces from 6 to 500 tons, CNC milling, 2D laser cutting on two Trumpf systems for sheet formats up to 3000 x 1500 mm, bending, welding, wet painting and surface finishing such as galvanizing, anodizing and powder coating with cooperation partners. The complete workflow is based on CAD; simulation engineering is used for special tasks. Core markets are rail transport with rail vehicle parts for Deutsche Bahn AG as well as the lighting and metal industries. Production ranges from small series to series production, complemented by assembly and on-site service. The company is certified to DIN EN ISO 9001:2015 and has been rated a Q1 supplier by Deutsche Bahn AG.
- Site
- Iserlohn
- Processes
- CNC milling, Bending/edging, Welding, 2D laser cutting, Wet painting, Galvanizing (with cooperation partners), Anodizing (with cooperation partners), Powder coating (with cooperation partners)
- Materials
- Steel, Stainless steel, Aluminum, Plastic, Plastic injection molding, 2D laser cutting, CNC milling, Bending/edging
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 9001:2015 (KW WORM site), Q1 supplier qualification Deutsche Bahn AG (spare parts for rail vehicles), CL1 according to DIN EN 15085-2, ISO 9001, Q1 supplier qualification Deutsche Bahn AG, DIN EN 15085-2 (CL1)
- Founded
- 1902 (KW
- Industries
- Rail transport/rail technology, Lighting industry, Metal industry
- 01
Design (CAD)
- 02
Product development
- 03
Injection molding
- 04
Laser cutting
- 05
Deburring/edging
- 06
Welding
- 07
Surface finishing
- 08
Assembly
- 09
Quality assurance
Materials & Processes
Plastic injection molding
18 machines with 6 to 500 t clamping force, some with extraction devices, for plastic parts in series production.
2D laser cutting
Two Trumpf systems produce almost any contour in steel up to 20 mm, stainless steel up to 12 mm and aluminum up to 10 mm.
CNC milling
Machining of steel, stainless steel and aluminum.
Bending/edging
Forming of sheet metal parts made of steel, stainless steel and aluminum.
Welding
Joining of metal assemblies, classified according to DIN EN 15085-2 (CL1).
Wet painting
In-house painting of surfaces.
Surface finishing
Galvanizing, anodizing, powder coating and vibratory/tumble finishing with cooperation partners.
Locations

Iserlohn
DEProduction halls, administration and production
- Lot size
- Small series to series production
- Materials
- Plastic, steel, stainless steel, aluminum
- 18 plastic injection molding machines (6–500 t clamping force)
- 2 Trumpf 2D laser cutting systems (sheet formats up to 3000×1500 mm)
- Eccentric presses
- Drilling and milling equipment
- Assembly stations
Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC millingMachining | – | – | – | – | Steel, Stainless steel, Aluminum |
| Bending/edgingForming | – | – | – | – | Steel, Stainless steel, Aluminum |
| WeldingJoining | – | – | – | – | Steel, Stainless steel, Aluminum |
| 2D laser cuttingMachining | – | 3000 mm × 1500 mm | – | – | Steel (up to 20 mm), Stainless steel (up to 12 mm), Aluminum (up to 10 mm) |
| Wet paintingSurface | – | – | – | – | – |
| Galvanizing (with cooperation partners)Surface | – | – | – | – | – |
| Anodizing (with cooperation partners)Surface | – | – | – | – | – |
| Powder coating (with cooperation partners)Surface | – | – | – | – | – |
| Vibratory/tumble finishingSurface | – | – | – | – | – |
| Plastic injection moldingPlastics | – | – | – | – | Plastic |
| AssemblyAssembly | – | – | – | – | – |
| Design (CAD)Engineering | – | – | – | – | – |
| Product development / simulation engineeringEngineering | – | – | – | – | – |
| Quality assurance incl. endurance load testingTesting | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Plastic injection molding machine (some with extraction device) | – | 18 | – | – | Iserlohn |
| Eccentric press | – | – | – | – | Iserlohn |
| Drilling and milling equipment | – | – | – | – | Iserlohn |
| Assembly stations | – | – | – | – | Iserlohn |
| 2D laser cutting system | Trumpf | 2 | Sheet formats up to 3000x1500 mm | – | Iserlohn |
Additional services
Reference customers
Quality
Constant inspections in all production stages and subsequent endurance load tests ensure product quality. The company is certified to DIN EN ISO 9001:2015 (TÜV NORD) and has been rated Q1 by Deutsche Bahn AG.
| Evidence | Iserlohn |
|---|---|
| ISO 9001 | |
| Q1 supplier qualification Deutsche Bahn AG | |
| DIN EN 15085-2 (CL1) |
History
- 1902
KW solutions founded as a specialized factory for railway supplies.
- 1951
KW WORM founded by Ferdinand and Karl Worm for the production of wood wool as packaging material for the lighting and metal industries.
- 1961
First plastic injection molding machine acquired; own product line marketed.
- 1995
Achim Worm takes over KW WORM; quality certifications and conversion of the buildings follow.
- 2005
The Antoni family takes over KW solutions; initial certification to ISO 9001.
- 2010
KW WORM taken over, production relocated to new production halls in Iserlohn.