
Manufacturer of diamond and CBN tools for metal, carbide, stone, glass and ceramics processing in Hamburg.

Kraus & Winter Inh. Felix-Gunter Kraus e.K.
HamburgNew on Amplifa
About Kraus & Winter
Kraus & Winter is a Hamburg company founded in 1929 that manufactures diamond and CBN tools for surface processing and cutting of materials. The portfolio includes diamond and CBN grinding wheels, cutting discs, grinding pins, grinding rolls, diamond files, dressing tools, diamond core bits, hollow drills as well as polishing pastes and special equipment for optical glass processing. In addition to standard products, custom-made tools are produced to customer dimensions; the company also offers electroplated application of diamond or CBN coatings onto tool bodies supplied by the customer. Fields of application include the processing of metal, carbide (HM), hardened steel (HSS), stone, concrete, masonry, glass and ceramics; customers include industry and trade as well as glass, laboratory and natural stone businesses and opticians. The company is run as a sole proprietorship (e.K.) by Ing. Felix-Gunter Kraus and is based in Hamburg-Lemsahl (Sarenweg).
- Site
- Hamburg
- Processes
- Manufacture of diamond and CBN tools (grinding wheels, cutting discs, grinding pins,, Electroplated diamond and CBN coating on customer parts (application to bodies), Custom manufacture of diamond and CBN tools to customer specifications (dimensions, shapes, grits), Dressing of ceramic grinding wheels (single-point dressing diamonds, multi-grain dressers,, Optical glass processing with special optician equipment, Dry drilling in masonry with diamond hollow drills Ø 32–202 mm, coating height 7 mm, standard, Wet drilling in reinforced concrete and masonry with diamond core bits, segments 7 mm and 10 mm, Custom-made diamond and CBN tools
- Materials
- Carbide (HM), HSS (High Speed Steel / hardened steel), Hardened steel, Metal, Stone / natural stone, Glass, Ceramics, Reinforced concrete
- Founded
- 1929
- Industries
- Metal processing, Carbide processing (HM), Tool and mould making, Stone and natural stone processing, Construction (reinforced concrete, masonry), Glass and ceramics processing
- 01
Consultation & product inquiry
- 02
Design/custom manufacturing
- 03
Electroplated diamond/CBN coating
- 04
Tool manufacturing
- 05
Final inspection
- 06
Shipping
Materials & Processes
Diamond
As diamond grit and diamond needles for tools used to process carbide, stone, glass and ceramics.
CBN (cubic boron nitride)
Used for grinding and cutting discs for processing hardened steel (HSS).
Carbide (tungsten bonding)
Bonding material for dressing tools and working material for processing with diamond tools.
Hardened steel / HSS
Tool bodies and material to be processed for CBN tools.
Steel
Tool bodies for electroplated diamond and CBN coating.
Stone / natural stone
Application area for diamond cutting discs, joint routers and core bits.
Glass
Processing with diamond tools and special optician equipment for optical glass processing.
Ceramics
Application area for tools; also the material of ceramic grinding wheels for dressing with diamond tools.
Locations
Hamburg
DEHeadquarters, production and office
- Materials
- Diamond, CBN, steel
- CAD workstations
- ERP system
Tools & Components






Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of diamond and CBN tools (grinding wheels, cutting discs, grinding pins,Tool manufacturing/trade | – | – | – | – | Metal, Carbide (HM), hardened steel (HSS), Stone, Glass, Ceramics, Masonry, Reinforced concrete, Asphalt, Pumice |
| Electroplated diamond and CBN coating on customer parts (application to bodies)Surface treatment | – | – | – | – | Tool bodies made of steel |
| Custom manufacture of diamond and CBN tools to customer specifications (dimensions, shapes, grits)Tool manufacturing/trade | – | – | – | – | – |
| Dressing of ceramic grinding wheels (single-point dressing diamonds, multi-grain dressers,Tool manufacturing/trade | – | – | – | – | Ceramics |
| Optical glass processing with special optician equipmentTool manufacturing/trade | – | – | – | – | Glass |
| Dry drilling in masonry with diamond hollow drills Ø 32–202 mm, coating height 7 mm, standardTool manufacturing/trade | – | 450 mm | – | – | Masonry |
| Wet drilling in reinforced concrete and masonry with diamond core bits, segments 7 mm and 10 mmTool manufacturing/trade | – | 450 mm | – | – | Reinforced concrete, Masonry |
Additional services
Company History
- 1929
Foundation of Kraus & Winter on 1 October 1929 by Theodor Felix Kraus and Willy Winter at Lindenstraße 5 in Hamburg; entry in the commercial register on 9 October 1929. Initial customers were glass, laboratory and natural stone businesses.
- 1935
Willy Winter leaves the company; Theodor Felix Kraus continues to run the business as sole owner.
- 1938
Relocation of the operation to Hamburg-Lokstedt, Lottestraße 9-11, and expansion of production into further areas.
- 1956
Relocation of the office to Hamburg-Lemsahl (today's location Sarenweg).
- 1964
Extension built at the office location in Hamburg-Lemsahl.
- 1960er
Felix-Gunter Kraus develops equipment for optical glass processing; optometry becomes a new customer group.
- 1974
Theodor Felix Kraus passes away; his son Felix-Gunter Kraus takes over the company.
- 2019
90th company anniversary; introduction of modern technologies such as CAD workstations and an ERP system.