Custom sprockets and gears made from CNC-machined steels, stainless steels and plastics
Speckenheuer Sprockets & Gears GmbH
Hauptstraße 100, 59889 EsloheNew on Amplifa
About us
Since 1946, Speckenheuer Sprockets & Gears GmbH has been manufacturing custom sprockets, gears and drive units at its Eslohe site in the Sauerland region, designed for integration into conveyor systems and machinery. Production covers sprockets in all sizes for virtually all chain types as well as gears and special gear teeth, produced on CNC machining centers and CNC 5-axis machining machines with fully digital CAD/CAM-controlled manufacturing. Materials used include steel, high-alloy special steels, stainless steels and plastics such as PA6G; the in-house production depth ranges from pre-turning, plasma cutting, welding and slotting to case hardening and induction hardening, plus the assembly of ready-to-install drive units. 40 employees produce over 15,000 sprockets annually in two-shift operation, from single parts to small series. Customers include plant manufacturers from mechanical engineering, conveying technology, hydraulic steel structures, mining, recycling and power plant technology, supplied from Germany throughout Europe and worldwide.
- Site
- Eslohe
- Processes
- Sprocket manufacturing (CNC machining centers, also plasma-cut, chain rims prefitted), Gear manufacturing on CNC 5-axis machining machines, fully digital CAD/CAM-controlled production, Case hardening, Induction hardening, Plasma cutting (plasma-cut), Welding (welded assemblies for large sprockets/gears), Assembly/manufacture of ready-to-install drive units (e.g. conveyor sprocket mounted on shaft), Slot manufacturing (duplex sprocket Tang slot, slot up to 100 mm width)
- Materials
- High-alloy special steel, Stainless steel, Plastic, PA6G, Steel, Steel / high-alloy special steel, Plastic (PA6G), CNC 5-axis machining
- Certificates
- ISO 9001
- Founded
- 1946
- Employees
- 40
- Industries
- Mechanical engineering, Conveying technology, Hydraulic steel structures, Sawmill systems, Gravel pits/plant engineering, Coal and power plants
- 01
Technical consulting and design
- 02
Pre-turning
- 03
Plasma cutting
- 04
CNC machining (gear teeth, slots)
- 05
Heat treatment (case hardening, induction hardening)
- 06
Welding
- 07
Assembly
- 08
Marking and ready-to-install delivery
Materials & Processes
Steel / high-alloy special steel
Base material for sprockets and gears, case-hardened or induction-hardened on request.
Stainless steel
For applications with corrosion exposure.
Plastic (PA6G)
For quiet, low-wear sprockets and gears, also split versions.
CNC 5-axis machining
CAD/CAM-controlled manufacturing of gears and special gear teeth with high precision.
Case/induction hardening
In-house heat treatment to increase the wear resistance of gear tooth areas.
Site
Eslohe
DEHeadquarters and production
- Part weight / size
- Duplex sprocket up to 630 mm diameter
- Lot size
- Single parts to small series
- Materials
- Steel, high-alloy special steels, stainless steel, plastic (PA6G)
- 22 CNC machining centers
- CNC 5-axis machining machine
- CNC lathe
- Plasma cutting system
- Case hardening and induction hardening equipment
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Sprocket manufacturing (CNC machining centers, also plasma-cut, chain rims prefitted)Machining | – | Duplex sprocket with 630 mm diameter | – | Single parts – Small series (>15,000 sprockets/year) | high-alloy special steels, plastics (PA6G), stainless steels |
| Gear manufacturing on CNC 5-axis machining machines, fully digital CAD/CAM-controlled productionMachining | – | – | – | – | plastic, steel |
| Case hardeningHeat treatment | – | – | – | – | steel |
| Induction hardeningHeat treatment | – | – | – | – | steel |
| Plasma cutting (plasma-cut)Machining | – | – | – | – | steel |
| Welding (welded assemblies for large sprockets/gears)Joining | – | – | – | – | steel |
| Assembly/manufacture of ready-to-install drive units (e.g. conveyor sprocket mounted on shaft)Assembly | – | – | – | – | – |
| Slot manufacturing (duplex sprocket Tang slot, slot up to 100 mm width)Machining | – | 100 mm (slot width) | – | – | – |
| Pre-turning (in-house production step)Machining | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC machining center | – | 22 (produc | – | – | Eslohe |
| CNC 5-axis machining machine | – | – | – | – | Eslohe |
| CNC lathe | – | – | – | – | Eslohe |
Additional services
Quality
All production steps from pre-turning to hardening are carried out in-house on 22 machines; a marking and documentation system ensures the reproducibility of spare parts. Production is fully digitally CAD/CAM-controlled.
| Evidence | Eslohe |
|---|---|
| ISO 9001 |
History
- 1946
Karl Speckenheuer founds Speckenheuer Maschinen und Apparatebau GmbH in Eslohe (Sauerland).
- 1972
First hall and production expansion for the manufacture of sprockets and gears at the Eslohe site.
- 1989
First purchase of a CNC lathe.
- 1995
The founder's grandson takes over the management.
- 2003
Investment in the expansion of the site.