Grinding spindles, dressing devices and spindle repair with radial and axial run-out tolerances down to +/- 0.001 mm
KW Abrichttec GmbH
04720 Döbeln, GermanyNew on Amplifa
About KW Abrichttec
KW Abrichttec GmbH, based in Döbeln, develops and manufactures grinding spindles, dressing devices and dressing spindles for cylindrical, surface and centreless grinding. The portfolio includes directly driven motor spindles, belt-driven (externally driven) spindles for over four decades, CNC path-controlled dressing devices in cross-slide technology, and a brake dressing device for CBN and diamond wheels. A patented hydraulic expansion mandrel enables rapid changing of diamond profile rolls. The manufacturing and repair service of the Spindelklinik achieves radial and axial run-out tolerances down to +/- 0.001 mm; CNC-controlled dressing systems produce highly precise profiles below one micron. In addition to metal technology, the company also supplies the semiconductor segment with the machining of hard and brittle materials such as SiC, SiN and sapphire. As the oldest company in the Könnemann Group, more than 20,000 products are installed worldwide; customers include various OEMs worldwide.
- Site
- Döbeln
- Processes
- Grinding spindle manufacturing (directly driven motor spindles), Grinding spindle manufacturing (externally/belt-driven spindles), Spindle repair service (Spindelklinik), Dressing devices and dressing spindles for cylindrical, surface and centreless grinding, Expansion mandrel for diamond profile rolls, CNC path-controlled dressing device with diamond profile roll (cross-slide technology), Brake dressing device for CBN/diamond wheels (with fitted SiC wheel), Machining of hard and brittle materials (semiconductor segment)
- Materials
- SiC (silicon carbide), SiN (silicon nitride), Saphir, CBN, Diamant, Silicon carbide, Silicon nitride, Sapphire
- Certificates
- Radial and axial run-out tolerances down to +/- 0.001 mm
- Industries
- Metal technology, Semiconductor technology, Grinding technology (cylindrical, surface and centreless grinding)
- 01
Design/Engineering
- 02
Spindle manufacturing
- 03
Dressing device manufacturing
- 04
Assembly
- 05
Spindelklinik (repair service)
- 06
Worldwide shipping
Materials & Processes
Silicon carbide
Fitting of brake dressers and machining in the semiconductor segment.
Silicon nitride
Hard, brittle material from the semiconductor segment.
Sapphire
Brittle material that is machined in the semiconductor segment.
CBN
Grinding wheel material for brake dressing devices.
Diamond
Material for profile rolls and grinding wheels in the dressing process.
Location
Döbeln
DEManufacturing, engineering and Spindelklinik
- Materials
- SiC, SiN, Saphir, CBN, Diamant
- Motor spindles (directly driven)
- Belt-driven spindles (externally driven)
- Dressing devices and dressing spindles
- Hydraulic expansion mandrel for diamond profile rolls
- CNC path-controlled dressing device (cross-slide technology)
- Brake dressing device for CBN/diamond wheels
Products & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Grinding spindle manufacturing (directly driven motor spindles)Machining | Radial and axial run-out tolerances down to +/- 0.001 mm | – | – | – | – |
| Grinding spindle manufacturing (externally/belt-driven spindles)Machining | Radial and axial run-out tolerances down to +/- 0.001 mm | – | – | – | – |
| Spindle repair service (Spindelklinik)Assembly | Radial and axial run-out tolerances down to +/- 0.001 mm | – | – | – | – |
| Dressing devices and dressing spindles for cylindrical, surface and centreless grindingMachining | – | – | – | – | – |
| Expansion mandrel for diamond profile rollsMachining | – | – | – | – | – |
| CNC path-controlled dressing device with diamond profile roll (cross-slide technology)Machining | 0.001 mm (profiles below one micron) | – | – | – | SiC, SiN, Saphir |
| Brake dressing device for CBN/diamond wheels (with fitted SiC wheel)Machining | – | – | – | – | CBN, Diamant, SiC |
| Machining of hard and brittle materials (semiconductor segment)Machining | – | – | – | – | SiC, SiN, Saphir |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Motor spindles (directly driven) | KW Abrichttec GmbH | – | – | – | Döbeln |
| Belt-driven spindles (externally driven) | KW Abrichttec GmbH | – | – | – | Döbeln |
| Dressing devices and dressing spindles | KW Abrichttec GmbH | – | – | – | Döbeln |
| Expansion mandrel for diamond profile rolls | KW Abrichttec GmbH | – | – | – | Döbeln |
| CNC path-controlled dressing device (cross-slide technology) | KW Abrichttec GmbH | – | – | – | Döbeln |
| Brake dressing device for CBN/diamond wheels | KW Abrichttec GmbH | – | – | – | Döbeln |
Additional services
Reference customers
Quality & Tolerances
Precision manufacturing and repair of spindles with radial and axial run-out tolerances down to +/- 0.001 mm; CNC path-controlled dressing systems achieve profiles below one micron.
| Evidence | Döbeln |
|---|---|
| Radial and axial run-out tolerances down to +/- 0.001 mm |
Company
Design and manufacture of belt-driven (externally driven) spindles for over four decades
Oldest company in the Könnemann Group; more than 20,000 products installed worldwide