Manufacturer of hand tools, torque wrenches, workshop trolleys and special tools – manufactured predominantly in four of its own plants in Germany.
HAZET-WERK Hermann Zerver GmbH & Co. KG
Remscheid (Plant 1 Forge, Production, Administration) · Heinsberg (Plant 2 Logistics and Production) · Remscheid (Plant 3 Sheet Metal Working, Powder Coating Facility) · Remscheid-VieringhausenNew on Amplifa
Overview
HAZET-WERK Hermann Zerver GmbH & Co. KG is a German family-owned company in its fifth generation that has been developing and manufacturing tools in Remscheid since 1868. The portfolio comprises over 6000 products: open-end and socket wrenches, highly precise torque wrenches in the range from 0.02 to 2000 Nm, fine-tooth ratchets, pneumatic, electric and cordless tools, Assistent series workshop trolleys as well as custom special tools developed jointly with German automotive manufacturers and Porsche Motorsport. Production is carried out with a high in-house share of over 75% in four German plants: In Plant 1 (Remscheid), the company combines classical forging craftsmanship with CNC manufacturing and collaborative robots; in Plant 2 (Heinsberg), rotationally symmetric parts such as socket inserts are produced on fully automated systems; Plant 3 covers sheet metal working and powder coating; Plant 4 consolidates manufacturing, assembly and calibration of torque technology. Materials are predominantly steel from Germany as well as stainless steel and plastic. Customers come from the automotive, commercial vehicle, aviation maintenance, marine, two-wheeler, industrial, trade and motorsport sectors. Distribution is via specialist dealers in over 100 countries.
- Site
- Remscheid
- Processes
- Forging (classical forging craftsmanship), CNC manufacturing, Fully automated production of rotationally symmetric parts (e.g. socket inserts), Sheet metal working, Powder coating (modern powder coating facilities), Manufacturing, assembly and calibration of torque wrenches (torque technology), Calibration and recalibration of torque tools (own DAkkS calibration laboratory for, Rapid prototyping 3D printing
- Materials
- Steel from Germany, Stainless steel, Plastic (solvent-resistant), Wood multiplex birch, Wood multiplex beech, Li-ion battery cells, Wood multiplex (birch, beech)
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, DIN EN ISO 50001:2018, DAkkS calibration laboratory (torque/rotation angle)
- Founded
- 1868
- Employees
- 550
- Industries
- Automotive, Commercial vehicles, Aviation maintenance, Marine/Shipping, Two-wheeler, Industry
- 01
Idea generation and market research
- 02
Engineering and CAD design
- 03
Rapid prototyping 3D printing
- 04
Forging
- 05
CNC machining / fully automated manufacturing of rotationally symmetric parts
- 06
Sheet metal working
- 07
Powder coating
- 08
Assembly
- 09
Calibration and testing (DAkkS laboratory)
- 10
Logistics and distribution
- 11
Service, repair and spare parts supply
Materials and Processes
Steel from Germany
Main material for forged tools such as wrenches, ratchets and torque wrenches, preferred with short supply routes.
Stainless steel
Used for work surfaces and components of workshop trolleys as well as corrosion-exposed parts.
Plastic (solvent-resistant)
Work surfaces and components of workshop trolleys, partly in ESD versions.
Wood multiplex (birch, beech)
Replaceable work surfaces of workbenches and workshop trolleys.
Li-ion battery cells
Cell technology for the 18-volt cordless tool range with EMS management.
Plants
Plant 1 – Remscheid (Güldenwerth)
DEForge, production and administration, headquarters
- Materials
- Steel
- Forging systems
- CNC-controlled manufacturing units
- Collaborative robots (cobots)
Plant 2 – Heinsberg
DELogistics center and production of rotationally symmetric parts
- Materials
- Steel
- Fully automated production systems for rotationally symmetric parts (socket inserts)
Plant 3 – Remscheid (Am Langen Siepen)
DESheet metal working, powder coating facility, workshop trolley production
- Materials
- Steel
- Sheet metal working systems
- Powder coating facility
Plant 4 – Remscheid-Vieringhausen
DETorque technology: manufacturing, assembly, calibration
- Materials
- Steel, stainless steel
- DAkkS calibration laboratory for torque and rotation angle
Plant 5 – Remscheid (Service Center)
DEService center: repair, adjustment, calibration, spare parts supply
Products and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Forging (classical forging craftsmanship)Forming | – | – | – | – | Steel |
| CNC manufacturingMachining | – | – | – | – | Steel |
| Fully automated production of rotationally symmetric parts (e.g. socket inserts)Machining | – | – | – | – | Steel |
| Sheet metal workingForming | – | – | – | – | Steel |
| Powder coating (modern powder coating facilities)Surface treatment | – | – | – | – | Steel |
| Manufacturing, assembly and calibration of torque wrenches (torque technology)Assembly | ±3% (e.g. 5122-3CT-PD, 40–200 Nm) | – | – | – | Steel |
| Calibration and recalibration of torque tools (own DAkkS calibration laboratory forTesting | – | – | – | – | – |
| Rapid prototyping 3D printingAdditive | – | – | – | – | – |
| Assembly of tool products (over 6000 products, in-house production share over 75%)Assembly | – | – | – | – | Steel, Plastic, Stainless steel, Wood |
| Lock/key manufacturing (historical: bayonet locks, drain pipe pliers)Forming | – | – | – | – | Steel |
8 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC-controlled manufacturing units | – | – | – | – | Plant 1 Remscheid |
| Collaborative robots (cobots) | – | – | – | – | Plant 1 Remscheid |
| Fully automated production systems for rotationally symmetric parts | – | – | – | – | Plant 2 Heinsberg |
| Powder coating facility | – | – | – | – | Plant 3 Remscheid |
| Sheet metal working systems | – | – | – | – | Plant 3 Remscheid |
| Calibration laboratory equipment for torque and rotation angle (DAkkS) | – | – | – | – | Plant 4 Remscheid-Vieringhausen |
| Forging systems | – | – | – | – | Plant 1 Remscheid (Güldenwerth) |
| Rapid prototyping 3D printers | – | – | – | – | – |
Additional services
Reference customers
Quality and Certificates
HAZET manufactures to the highest technical and safety standards, often exceeding the required DIN/ISO standards. Torque wrenches comply with DIN EN ISO 6789-2:2017, come with their own calibration certificate with serial number and are calibrated in the company's own DAkkS calibration laboratory for torque and rotation angle.
| Evidence | Remscheid |
|---|---|
| DIN EN ISO 9001:2015 | |
| DIN EN ISO 14001:2015 | |
| DIN EN ISO 50001:2018 | |
| DAkkS calibration laboratory (torque/rotation angle) |
History
- 1868
Company founded by Hermann Zerver in Remscheid; production of bayonet locks, drain pipe pliers and wrenches.
- 1923-1938
Start of exports abroad; in 1926 the workforce comprises 50 people.
- 1943
Main plant in Remscheid almost completely destroyed by incendiary bombs.
- 1950-1951
International trade fair participations (Geneva, Amsterdam, Hanover, Brussels, Stockholm); number of employees grows to 244.
- 1952-1958
Tool kit for the VW Beetle spare wheel (HAZET Assistent) becomes a bestseller.
- 1964-1973
490 employees; new forge building in Güldenwerth.
- 1973
Jochen Zerver joins the company in the 4th generation.
- 1989
Matthias J. Hoffmann starts at HAZET in the 5th generation.
- 1998
HAZET becomes Official Supplier and Technical Partner of Porsche Motorsport; first website goes online.
- 2011
Award as a Top 100 SME company.