Manufacturer of parallel keys to DIN and CNC-milled parts to drawing in Plettenberg.
Crummenerl GmbH
Plettenberg · GermanyNew on Amplifa
About Crummenerl GmbH
Crummenerl GmbH is an owner-managed metalworking company based in Plettenberg (Sauerland), founded in 1952. The company, with just under 30 employees, specializes in the manufacture and distribution of fasteners and precision parts to drawing. The focus is on parallel keys to DIN 6885 (forms A, B, AB, C, D, AS, E, F) as well as taper and feather key types to DIN 6888, DIN 28134, DIN 6883, DIN 6887, DIN 6881, DIN 268 and DIN 6886 – in all common materials, with or without heat treatment, also as special dimensions and imperial sizes. In addition, key steel to DIN 6880 in stock and manufacturing lengths, bright steel with special tolerances and ground precision flat steel are supplied. For complex components with special mechanical properties, 3-axis and 4-axis CNC machining centers with robot or pallet-changing tables are used; production takes place in a two-shift system. The company supplies industries including the railway industry and is certified to DIN EN ISO 9001:2015 and ISO/TS 22163:2017.
- Site
- Plettenberg
- Processes
- Parallel keys to DIN 6885 (forms A, B, AB, C, D, AS, E, F), Taper and feather key types to DIN 6888, DIN 28134, DIN 6883, DIN 6887, DIN 6881, DIN 268, DIN 6886, CNC-milled parts to drawing (3-axis and 4-axis CNC machining centers), Supply of key steels to DIN 6880 (stock and manufacturing lengths), bright steel with, Heat treatment / special heat treatment (on parallel keys, per customer request), Engineering / consulting for special parts to drawing, CNC-milled parts to drawing (3-axis and 4-axis CNC machining centers, robot/pallet-changing tables), Heat treatment (special requests)
- Materials
- Key steel to DIN 6880, Steel (keys, parallel keys), Steel keys of all kinds, 3-/4-axis CNC machining centers, Heat treatment
- Certificates
- DIN EN ISO 9001:2015, ISO/TS 22163:2017 (railway), ISO 9001, ISO/TS 22163 (railway)
- Founded
- 1952
- Employees
- 30
- Industries
- Railway industry, Mechanical engineering, All leading industries (as stated by the company), Railway (railway industry), all leading industries as stated by the company
- 01
Material procurement (key steel to DIN 6880)
- 02
Cutting / bright steel
- 03
CNC milling (3-/4-axis)
- 04
Heat treatment (per customer request)
- 05
Quality inspection
- 06
Shipping, worldwide
Materials & Processes
Key steel to DIN 6880
Stock and manufacturing lengths, bright steel with special tolerances as well as ground precision flat steel.
Steel (keys, parallel keys)
Material for parallel keys, taper keys and feather key types, with or without heat treatment.
3-/4-axis CNC machining centers
With robot or pallet-changing tables for complex components to drawing.
Heat treatment
Standard and special heat treatments on parallel keys according to customer requirements.
Site
Plettenberg
DEHeadquarters and production
- Part weight / size
- Parallel keys up to 700 × 150 × 80 mm
- Lot size
- Special dimensions by agreement
- Materials
- Key steel to DIN 6880, steel
- 3-axis CNC machining centers
- 4-axis CNC machining centers
- Robot or pallet-changing tables
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Parallel keys to DIN 6885 (forms A, B, AB, C, D, AS, E, F)Joining | – | 700 mm × 150 mm × 80 mm | – | – | all common materials, with/without heat treatment |
| Taper and feather key types to DIN 6888, DIN 28134, DIN 6883, DIN 6887, DIN 6881, DIN 268, DIN 6886Joining | – | – | – | – | – |
| CNC-milled parts to drawing (3-axis and 4-axis CNC machining centers)Machining | – | – | – | – | – |
| Supply of key steels to DIN 6880 (stock and manufacturing lengths), bright steel withMachining | – | – | – | – | Key steel |
| Heat treatment / special heat treatment (on parallel keys, per customer request)Heat treatment | – | – | – | – | – |
| Engineering / consulting for special parts to drawingEngineering | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3-axis CNC machining center | – | – | – | – | Plettenberg |
| 4-axis CNC machining center | – | – | – | – | Plettenberg |
| Robot or pallet-changing tables (on CNC machining centers) | – | – | – | – | Plettenberg |
Additional services
Quality & Certification
The company is certified to DIN EN ISO 9001:2015 and ISO/TS 22163:2017 (railway) and produces in a two-shift system with modern CNC milling technology.
| Evidence | Plettenberg |
|---|---|
| ISO 9001 | |
| ISO/TS 22163 (railway) |
History
- 1952
Company founded.
- 2012
Acquisition of Crummenerl GmbH by Dr.-Ing. Hubert Nägele; steady growth ever since.