
Contract manufacturing of metal and sheet metal parts, welded assemblies and machined components for plant engineering and mechanical engineering

KRUG Metallbearbeitung GmbH
Bruchtannenstraße 27, 63801 KleinostheimNew on Amplifa
About Krug Metallbearbeitung GmbH
KRUG Metallbearbeitung GmbH is an owner-managed family business in Kleinostheim near Aschaffenburg that has been active as a contract manufacturer for plant engineering and mechanical engineering since 1990. The company works with steel, stainless steel, aluminium, titanium, copper and brass and covers the complete process chain: laser cutting and tube laser cutting, CNC punching, press braking, roll bending, robot-assisted welding, machining (turning, milling), deburring, surface finishing as well as assembly of complete assemblies including electrical wiring. The machine park includes, among others, a TRUMPF TruLaser 3030 fiber with 8000 watts, a punch-laser combination, three press brakes, an automated arc welding cell TruArc Weld 1000 as well as 5-axis milling machines and 2-spindle lathes from DMG MORI. Production ranges from single parts and prototypes to series production in any quantity, including material procurement and just-in-time delivery. Quality assurance is carried out according to DIN ISO 9001 with a FARO measuring arm and height gauge.
- Site
- Kleinostheim
- Processes
- CNC laser cutting, CNC punching, CNC press braking, Tube laser cutting (cutting of round, square and rectangular tubes), Welding (automated arc welding cell, robot-assisted), Series production of welded parts, Machining (turning), Machining (milling, 5-axis)
- Materials
- Steel, Stainless steel (VA), Aluminium, Titanium, Copper, Brass, Steel tubes, Square steel
- Certificates
- DIN ISO 9001 (QM system), ISO 9001
- Founded
- 1990
- Employees
- 30
- Industries
- Plant engineering, Mechanical engineering
- 01
Material procurement
- 02
Laser cutting / punching / sawing
- 03
Press braking / roll bending
- 04
Machining (turning, milling)
- 05
Welding
- 06
Deburring / surface finishing
- 07
Assembly incl. wiring
- 08
Quality assurance
- 09
Delivery (just-in-time)
Materials and Processes
Steel
Sheet metal up to 30 mm (laser) or up to 10 mm (tube laser), base material for welded parts and assemblies.
Stainless steel
Sheet metal up to 30 mm by laser, tube processing up to 5 mm wall thickness.
Aluminium
Sheet metal up to 25 mm laser cut, tubes up to 5 mm wall thickness.
Titanium
Sheet metal up to 6 mm can be processed by laser cutting.
Copper
Sheet metal up to 10 mm and tubes up to 4 mm wall thickness.
Brass
Sheet metal up to 10 mm as well as tube processing up to 4 mm wall thickness.
Kleinostheim Site

Kleinostheim
DEHeadquarters / Production
- Lot size
- Single parts to series in any quantity
- Materials
- Steel, stainless steel, aluminium, titanium, copper, brass
- TRUMPF TruLaser 3030 fiber (8000 W, 3000 x 1500 mm)
- TRUMPF punch-laser combination TC6000L (2700 W)
- TRUMPF press brakes TruBend 5230 (2300 kN), V1700 (1700 kN), TruBend 5085 (850 kN)
- TruArc Weld 1000 welding cells (6-axis robot, Fronius, 2 stations)
- DMG MORI lathes NLX 2500/700 SY and NLX 2500/500
- DMG Mori 5-axis milling machines DMF 260/7 and DMU 70
- Roll bending machines LUNA 1500x4,0 / 200x0,8 and Schwartmann 1000x1,5
- Kaltenbach automatic metal circular saw KKS 450 H
- TimeSavers 42 WRBW through-feed deburring machine
- PEM Serter Series 2000
- FARO measuring arm Platinum 1200
- Studenroth/Trimos height gauge
Components and References






Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC laser cuttingMachining | – | 3000 x 1500 mm | – | – | Steel sheet, Stainless steel sheet, Aluminium sheet, Titanium sheet, Copper sheet, Brass sheet |
| CNC punchingJoining | – | 2500 x 1250 mm | – | – | Steel sheet, Stainless steel sheet, Aluminium sheet, Copper, Titanium, Brass |
| CNC press brakingForming | – | Bending length 3230 mm | – | – | Steel, Stainless steel, Aluminium |
| Tube laser cutting (cutting of round, square and rectangular tubes)Machining | – | 3000 mm × Diameter 20 mm up to max. 350 mm | – | – | Steel, Stainless steel (VA), Aluminium, Copper, Brass |
| Welding (automated arc welding cell, robot-assisted)Joining | – | 2000 mm × 600 mm × 600 mm | – | Single parts – Series in any quantity | Steel, Stainless steel |
| Series production of welded partsJoining | – | – | – | any quantity | Steel |
| Machining (turning)Machining | – | – | – | – | Metal |
| Machining (milling, 5-axis)Machining | – | – | – | – | Metal |
| Tube processingMachining | – | – | – | – | Steel tubes, Square steel |
| Rounding (roll bending of sheets)Forming | – | up to max. 1500 mm × Diameter from 30 mm (depending on | – | – | Sheet metal |
| Deburring (through-feed deburring machine with edge rounding and surface finishing)Surface | – | 1500 mm (deburring), 1350 mm (with | – | – | Sheet metal |
| Powder coatingSurface | – | – | – | – | Metal |
| Glass bead blastingSurface | – | – | – | – | Metal |
| Galvanic surface treatmentSurface | – | – | – | – | Metal |
| Press-in fastening (PEM press-in inserter)Assembly | – | – | – | – | Sheet metal |
| Assembly manufacturing incl. assembly and electrical wiringAssembly | – | – | – | – | Metal |
| Quality assurance / metrology (FARO measuring arm, height gauge)Testing | – | – | – | – | – |
| Engineering / planning support (2D/3D data import: DWG, DXF, MI, GEO, Step, ACIS,Engineering | – | – | – | – | – |
18 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laser cutting machine | TRUMPF TruLaser 3030 fiber / 8000 Watt | 1 | 3000 x 1500 mm | – | Kleinostheim |
| Welding cell (robot-assisted, 6-axis robot, 2 stations, Fronius welding source) | TruArc Weld 1000 | 1 | 2000 x 600 x 600 mm | – | Kleinostheim |
| Punch-laser combination | TRUMPF TC6000L / 2700 Watt | 1 | 2500 x 1250 mm | – | Kleinostheim |
| Press brake (press force 2300 kN, 6-axis backgauge) | TRUMPF TruBend 5230 | 1 | Bending length 3230 mm | – | Kleinostheim |
| Press brake (press force 1700 kN, 6-axis backgauge) | TRUMPF TruBend V1700 | 1 | Bending length 3230 mm | – | Kleinostheim |
| Press brake (press force 850 kN, 6-axis backgauge) | TRUMPF TruBend 5085 | 1 | Bending length 2210 mm | – | Kleinostheim |
| Through-feed deburring machine | TimeSavers 42 WRBW Series | 1 | max. through-feed width 1500 mm (deburring), 1350 mm (with longitudinal grinding) | – | Kleinostheim |
| Lathe (2-spindle machining) | DMG MORI SEIKI NLX 2500/700 SY | 1 | Max. diameter 278 mm, max. length 700 mm | – | Kleinostheim |
| Lathe (2 spindles, Y-axis, driven tools) | DMG MORI SEIKI NLX 2500/500 | 1 | Max. diameter 278 mm, max. length 510 mm | – | Kleinostheim |
| Milling machine (5 axes, 2 rotary tables, 60-tool magazine) | DMG Mori DMF 260/7 | 1 | X 2600 mm, Y 700 mm, Z 700 mm | – | Kleinostheim |
| Milling machine (5 axes, 30-tool magazine) | DMG Mori DMU 70 | 1 | X 750 mm, Y 600 mm, Z 520 mm | – | Kleinostheim |
| Roll bending machine (digital display, conical rounding with slide shoe) | LUNA 1500 x 4,0 mm | 1 | Max. rolling length 1500 mm, diameter from 130 mm, sheet thickness up to max. 3 mm | – | Kleinostheim |
| Roll bending machine | Schwartmann 1000 x 1,5 mm | 1 | Max. rolling length 1000 mm, diameter from 70 mm | – | Kleinostheim |
| Roll bending machine (for delicate sheet rounding) | Luna 200 x 0,8 mm | 1 | Max. rolling length 200 mm, material thickness 0,5–0,8 mm, diameter from 30 mm | – | Kleinostheim |
| Automatic metal circular saw | Kaltenbach KKS 450 H | 1 | Round D=145 mm, square 130x130 mm, rectangle 340x50 mm, U-profile 260x90 mm | – | Kleinostheim |
| PEM Serter (press-in inserter) | PEM Series 2000 | 1 | – | – | Kleinostheim |
| Measuring arm | FARO Platinum 1200 | 1 | – | – | Kleinostheim |
| Height gauge | Studenroth Trimos | 1 | – | – | Kleinostheim |
Additional services
Quality Assurance
The processes are clearly structured from quotation to delivery; work is carried out in accordance with the guidelines of the DIN ISO 9001 quality management system. Components and assemblies are fully inspected and documented with a FARO measuring arm Platinum 1200 and height gauge; just-in-time delivery is offered.
| Evidence | Kleinostheim |
|---|---|
| ISO 9001 |
History
- 1990
Foundation of Krug Metallbearbeitung GmbH by Rudolf Krug with his three children Susanne Albert, Thomas Krug and Christine Strauch in Kleinostheim
- 1997
Move to the company's own building at Bruchtannenstraße 27, Kleinostheim
- 1998
Entry into laser technology
- 2004
Expansion of the facility with a hall and annex building
- 2005
Office expansion and extension of the production hall
- 2008
Purchase of a neighbouring property to secure future growth