Manufacturer of gears, gearboxes, and driveshafts for agricultural machinery – from gear manufacturing to assembly.
Wolfgang Schmahl GmbH & Co. KG
Velbert-Neviges (DE)New on Amplifa
About Schmahl
Wolfgang Schmahl GmbH & Co. KG was founded in 1969 as Neviges Gear Factory and manufactures gears, gearbox parts, complete gearboxes, and driveshafts for self-propelled agricultural machinery. The performance portfolio includes gear milling, rolling, gear flank grinding on Reishauer machines, heat treatment (carburizing, nitriding, vacuum hardening), as well as assembly including painting and end-of-line test rig operation. Large parts up to 10 t (company specifications up to 20 t) workpiece weight are manufactured, as are small series. Customers come from agricultural machinery construction, civil engineering machinery construction, general mechanical and plant engineering, military technology, marine gearbox and engine construction, and wind power technology. More than 120 employees are employed in a production area of over 10,000 m² in Velbert-Neviges; additional contract work such as gear milling, gear flank grinding, and contract hardening is offered.
- Site
- Velbert
- Processes
- Milled spur gears (straight/helical/conical), Milled/Rolled spur gears (straight/helical/conical), Milled spur gears, Shafts with splines (DIN 5480/5481/5482/SAE), Hubs/Key hubs hobbed/rolled (DIN 5480/5481/5482/SAE), Hollow gears rolled, Chain wheels manufactured, Belt drive wheels manufactured
- Materials
- Steel (Gear Components), Vacuum Hardening, Gear Flank Grinding, Rolling
- Certificates
- DIN EN ISO 9001:2015, ISO 9001, Approval by Ship Classification Societies
- Founded
- 1969
- Employees
- über 120
- Industries
- Agricultural Machinery Construction, Civil Engineering Machinery Manufacturers, General Mechanical and Plant Engineering, Military Technology, Marine Gearboxes, Engine Construction
- 01
Design and Development
- 02
Raw Material Procurement
- 03
Gear Manufacturing (Milling, Rolling, Hobbing)
- 04
Gear Flank Grinding
- 05
Heat Treatment (Vacuum Hardening)
- 06
Material and Gear Inspection
- 07
Assembly Incl. Painting
- 08
End-of-Line Test Rig
- 09
Shipping and Logistics
Processes & Manufacturing Technologies
Steel (Gear Components)
Steel materials for gears, shafts, and gearbox parts with carburizing or nitriding; material combinations are not specified by the manufacturer.
Vacuum Hardening
In-house vacuum hardening plant for carburizing, nitriding, and contract hardening since 2019/2021.
Gear Flank Grinding
Reishauer RZ 550 and RZ 1000 and over 14 CNC gear grinding machines for medium and large series.
Rolling
Hydraulic Pfauter machines (P 1600 S, P 2000 S) for external and internal gearing with gear tooth width over 600 mm.
Velbert Site
Velbert-Neviges
DEHeadquarters, Production, Assembly, Shipping/Logistics, Administration
- Part weight / size
- Large parts up to 10 t (or up to 20 t)
- Lot size
- Small series up to large series
- Materials
- Steel
- Reishauer gear flank grinding machines RZ 550 and RZ 1000
- over 14 CNC gear grinding machines
- Pfauter rolling machines P 1600 S and P 2000 S
- Klingelnberg gear measuring machines P40, P100, P150
- Vacuum hardening plant
- End-of-Line Test Rig
- Painting facility
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Milled spur gears (straight/helical/conical)Machining | – | max. diameter 1 500 mm × Tooth width 600 mm | – | – | – |
| Milled/Rolled spur gears (straight/helical/conical)Machining | – | max. diameter 3 500 mm × Tooth width 600 mm | – | – | – |
| Milled spur gearsMachining | – | up to max. diameter 400 mm × Tooth width 150 mm | – | – | – |
| Shafts with splines (DIN 5480/5481/5482/SAE)Machining | – | up to total length 1000 mm × Tooth width 250 mm | – | – | – |
| Hubs/Key hubs hobbed/rolled (DIN 5480/5481/5482/SAE)Machining | – | hobbed up to pitch diameter Ø 85 mm, × Tooth width 290 mm | – | – | – |
| Hollow gears rolledMachining | – | max. pitch diameter 3,200 mm × Tooth width 600 mm | – | – | – |
| Chain wheels manufacturedMachining | – | up to max. diameter 400 mm | – | – | – |
| Belt drive wheels manufacturedMachining | – | up to max. diameter 400 mm | – | – | – |
| Worm wheels manufacturedMachining | – | up to max. diameter 400 mm | – | – | – |
| Special gearing (all rollable profiles)Machining | – | – | – | – | – |
| Gear milling (contract work)Machining | – | – | – | – | – |
| Gear flank grinding (contract work)Machining | – | – | – | – | – |
| CarburizingHeat Treatment | – | – | – | – | – |
| NitridingHeat Treatment | – | – | – | – | – |
| Contract hardening (Vacuum hardening)Heat Treatment | – | – | – | – | – |
| Hardness testingInspection | – | – | – | – | – |
| Magnetic powder crack testingInspection | – | – | – | – | – |
| Gear measurement (Klingelnberg P40/P100/P150)Inspection | – | – | – | – | – |
| Design and Development of Gearboxes and ShaftsEngineering | – | – | – | – | – |
| Assembly of complete gearboxes, driveshafts, and transfer/differential gearboxesAssembly | – | – | – | – | – |
| Test rig operation / End-of-Line testingInspection | – | – | – | – | – |
| PaintingSurface | – | – | – | – | – |
10 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Gear flank grinding machine | Reishauer RZ 550 | – | – | – | Velbert |
| Gear flank grinding machine | Reishauer RZ 1000 | – | – | – | Velbert |
| CNC gear grinding machine | – | über 14 | – | – | Velbert |
| Rolling machine (hydraulic) | Pfauter P 2000 S | – | Gear tooth width over 600 mm | – | Velbert |
| Rolling machine (hydraulic) | Pfauter P 1600 S | – | Gear tooth width over 600 mm | – | Velbert |
| Gear measuring machine | Klingelnberg P40 | – | – | – | Velbert |
| Gear measuring machine | Klingelnberg P100 | – | – | – | Velbert |
| Gear measuring machine | Klingelnberg P150 | – | – | – | Velbert |
| Vacuum hardening plant | – | – | – | 2019-2021 | Velbert |
| End-of-Line Test Rig | – | – | – | 2018 | Velbert |
Additional services
Quality
Quality assurance includes Klingelnberg gear measuring centers (P40, P100, P150), hardness testing, and magnetic powder crack testing; all non-destructive tests are carried out in the in-house material laboratory. The company is certified according to DIN EN ISO 9001:2015 (TÜV) and approved by reputable ship classification societies.
| Evidence | Velbert-Neviges |
|---|---|
| ISO 9001 | |
| Approval by Ship Classification Societies |
History
- 1969
Founding of Neviges Gear Factory by Wolfgang Schmahl
- 1975
Relocation to the current company premises
- 1980
Expansion of the company buildings
- 1998
Martin Schmahl comes into the company as successor
- 2007
Construction of another production hall
- 2012
Establishment of a new shipping and logistics center
- 2013
Expansion of the company premises by another 6,000 m²
- 2016
Expansion with another adjacent property of 3,500 m²
- 2018
Construction of an assembly hall for driveshafts and gearboxes with a painting facility and end-of-line test rig
- 2019–2020
Construction of an in-house vacuum hardening plant and expansion of a production hall
- 2021
Expansion of the vacuum hardening plant