Contract manufacturing for deburring, vibratory finishing, polishing, blasting and brushing of metal, plastic and ceramic parts.
Dörfler&Schmidt Präzisionsfinish GmbH
91126 Kammerstein · GermanyNew on Amplifa
About Dörfler&Schmidt
Dörfler&Schmidt Präzisionsfinish GmbH is a family business founded in 1998, headquartered in Kammerstein (Middle Franconia), specialising in mechanical surface treatment performed as contract work. The company deburrs, grinds and polishes components made of virtually all ferrous and non-ferrous metals (including stainless steel, aluminium, titanium, brass, carbide, HSS, Inconel), plastics as well as ceramics, glass and wood. The machine fleet covers all vibratory finishing process types: vibratory, centrifugal, drum and dip finishing, complemented by double-disc grinding, blasting, brushing and ultrasonic cleaning. Parts are processed from under Ø 1 mm to Ø 800 mm, from small batches to large series of several 100 million pieces, with economically achievable roughness values of Ra 0,05 µm (or Ra 0,02 µm on ceramics). Customers come from the automotive, medical, tool, electrical, aerospace as well as fashion and jewellery industries and from mechanical and plant engineering. The company works in accordance with ISO 9001, generates 45 % of its electricity needs itself via photovoltaics and uses closed water circuits with microfiltration.
- Site
- Kammerstein
- Processes
- Vibratory finishing / tumbling, Vibratory finishing, Centrifugal finishing, Drum finishing, Dip finishing (drag finishing), Chemically accelerated vibratory finishing, Deburring and edge rounding, Polishing and smoothing
- Materials
- Stainless steel, Aluminium, Precious metals, All ferrous and non-ferrous metals, Steel, Titanium, Brass, Carbide
- Certificates
- ISO 9001:2015, ISO 9001
- Founded
- 1998
- Industries
- Automotive industry, Medical technology, Mechanical and plant engineering, Tool industry, Electrical industry, Aerospace industry
- 01
Sampling and quotation preparation
- 02
Vibratory finishing (vibratory, centrifugal, drum, dip)
- 03
Double-disc grinding / brushing / blasting
- 04
Deburring and edge rounding
- 05
Polishing and smoothing
- 06
Ultrasonic cleaning
- 07
Final inspection and return delivery
Locations
Kammerstein
DEHeadquarters and production
- Part weight / size
- Parts up to several kilograms, Ø up to 800 mm
- Lot size
- Small series to large series (>100 million pieces)
- Materials
- Stainless steel, steel, aluminium, titanium, brass, carbide, HSS, plastic, ceramics
- Vibratory finishing systems
- Centrifugal finishing systems
- Drum finishing systems
- Dip finishing systems
- Double-disc grinding systems
- Brushing systems
- Blasting systems
- Ultrasonic immersion systems
- Ultrasonic spray systems
- Microfiltration systems
- Centrifuges for abrasion binding
Reference Parts
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Vibratory finishing / tumblingSurface | Ra 0,05 or Rz 0,5 economical | Ø 800 mm | – | Small series – Large series with several 100 million | All ferrous and non-ferrous metals (stainless steel,, Plastics (elastomers, thermoplastics, PU, PE), Ceramics, glass, wood |
| Vibratory finishingSurface | – | – | – | – | – |
| Centrifugal finishingSurface | – | – | – | – | – |
| Drum finishingSurface | – | – | – | – | – |
| Dip finishing (drag finishing)Surface | – | – | – | – | – |
| Chemically accelerated vibratory finishingSurface | – | – | – | – | Metal |
| Deburring and edge roundingSurface | – | – | – | – | Metal, Plastic |
| Polishing and smoothingSurface | Ra 0,05 µm or Rz 0,5; Ra 0,02 µm on | Ø 800 mm | several kilograms | – | Stainless steel, Steel, Titanium, Aluminium, Brass, Carbide, Plastic, Oxide ceramics |
| Blasting (glass beads, corundum, stainless steel, natural materials)Surface | defined roughness and bearing ratio | – | – | – | – |
| Brushing (brush deburring, brush polishing, structuring)Surface | – | Ø 80 mm | – | Small series | Stainless steel, Aluminium, Carbide, HSS |
| Ultrasonic cleaning (immersion and spray systems)Surface | – | – | – | – | – |
| DescalingSurface | – | – | – | – | Metal |
| Double-disc grindingSurface | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Vibratory finishing system | – | – | – | – | Kammerstein |
| Centrifugal finishing system | – | – | – | – | Kammerstein |
| Drum finishing system | – | – | – | – | Kammerstein |
| Dip finishing system | – | – | – | – | Kammerstein |
| Ultrasonic immersion system | – | – | – | – | Kammerstein |
| Ultrasonic spray system | – | – | – | – | Kammerstein |
| Brushing system | – | – | – | – | Kammerstein |
| Microfiltration system | – | – | – | – | Kammerstein |
| Centrifuges (abrasion binding) | – | – | – | – | Kammerstein |
Additional services
Reference customers
Quality
The processes are certified in accordance with ISO 9001:2015 (DEKRA, Reg.-No. 30918499/2), with reproducible series quality and on-time delivery as the working standard. Energy, water and waste consumption are continuously monitored; abrasion materials are bound in centrifuges and materially recycled.
| Evidence | Kammerstein |
|---|---|
| ISO 9001 |
History
- 1998
Foundation of the family business; specialisation in deburring, grinding and polishing of components.
- 2024
Recertification to ISO 9001:2015 by DEKRA, valid until 30.08.2027.