Contract manufacturing in turning, milling, boring and welding technology as well as spot welding guns and hose packages for welding robots
Lünzmann Maschinenbau und Schweisstechnik GmbH & Co. KG
27753 DelmenhorstNew on Amplifa
Family business in its third generation
Lünzmann Maschinenbau und Schweisstechnik is a family business founded in 1945 in Delmenhorst, now in its third generation. Originating from a master craftsman's shop in metalworking (locksmithing), the focus today is on metal cutting on CNC lathes, boring and milling machines as well as machining centers. The service portfolio includes CNC and conventional turning (up to D 800 mm, L 2000 mm), CNC milling up to 1,600 × 620 × 550 mm, boring of components up to 5 tons unit weight, and surface planing of large surfaces up to 4,000 mm in length. An in-house welding shop with several MIG/MAG machines produces welded constructions with mechanical machining; surface coatings (primer, paint, powder) are commissioned externally upon request. A specialty is the manufacture and repair of water-cooled spot welding cables, pneumatic spot welding guns and hose packages for welding robots in the automotive industry. The company operates as an extended workbench for the automotive industry, special machinery construction and jig/fixture construction – many business relationships have existed for more than 40 years.
- Site
- Delmenhorst
- Processes
- Contract manufacturing, turning (CNC), Contract manufacturing, turning (conventional), Contract manufacturing, milling (CNC milling, machining centers), Contract manufacturing, welding and welding technology (MIG/MAG), Spot welding, Welded constructions / structural steelwork (with mechanical machining), Surface coating (primer, paint, powder, purchased externally), Contract manufacturing, boring machines (conventional)
- Materials
- Aluminium (pneumatic cylinders), Turning, CNC and conventional, Milling and machining centers, MIG/MAG welding, Boring machine machining, Surface planing (long-bed planing), Aluminium, Steel
- Certificates
- ISO 9001
- Founded
- 1945
- Industries
- Automotive industry, Special machinery construction, Jig and fixture construction, Welding technology
- 01
CNC turning and conventional turning
- 02
CNC milling and machining centers
- 03
Boring machine machining
- 04
Surface planing (long-bed planing)
- 05
MIG/MAG welding and metalworking shop
- 06
Surface coating (purchased externally)
- 07
Assembly of spot welding guns and hose packages
Materials and Processes
Turning, CNC and conventional
Working ranges CNC D = 1–350 mm / L = 450 mm, conventional D = 1–800 mm / L = 2000 mm.
Milling and machining centers
Components up to 1,600 × 620 × 550 mm with high repeatability accuracy.
MIG/MAG welding
Several welding machines, some with pulse technology, for welded constructions up to 5 t.
Boring machine machining
Conventional X=1200 Y=1100, CNC X=1000 Y=900, unit weights up to 5 tons.
Surface planing (long-bed planing)
Low-stress machining of large surfaces such as machine base plates, L=4000, B=1200, H=1100.
Aluminium
Used among other things for pneumatic cylinders of spot welding guns.
Steel
Material for welded constructions and structural steelwork.
Sites
Delmenhorst
DEHeadquarters and production
- Part weight / size
- up to 5 t (boring machine machining)
- Materials
- Steel, aluminium
- CNC lathes (D 1–350 mm, L 450 mm)
- Conventional lathes (D 1–800 mm, L 2000 mm)
- Machining centers (1600 × 620 × 550 mm)
- CNC milling machines (630 × 320 × 350 mm)
- Boring machine, conventional (1200 × 1100)
- Boring machine, CNC (1000 × 900)
- Surface planing machine (4000 × 1200 × 1100)
- MIG/MAG welding machines, some with pulse technology
- Straightening press, C-frame, up to 150 t
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Contract manufacturing, turning (CNC)Metal cutting | – | L = 450mm × D = 350mm | – | – | – |
| Contract manufacturing, turning (conventional)Metal cutting | – | L = 2000mm × D = 800 mm | – | – | – |
| Contract manufacturing, milling (CNC milling, machining centers)Metal cutting | – | 1600 mm × 620 mm × 550 mm | – | – | – |
| Contract manufacturing, welding and welding technology (MIG/MAG)Joining | – | – | – | – | Steel |
| Spot weldingJoining | – | – | – | – | – |
| Welded constructions / structural steelwork (with mechanical machining)Joining | – | – | 5 tons | – | – |
| Surface coating (primer, paint, powder, purchased externally)Surface | – | – | – | – | – |
| Contract manufacturing, boring machines (conventional)Metal cutting | – | X= 1200 Y= 1100 | 5 tons (unit weight) | – | – |
| Contract manufacturing, boring machines (CNC-controlled)Metal cutting | – | X= 1000 Y= 900 | 5 tons (unit weight) | – | – |
| Contract manufacturing, surface planing / planingMetal cutting | – | L= 4000 × B= 1200 × H= 1100 | – | – | – |
| Manufacture of water-cooled spot welding cables and pneumatic spot welding gunsAssembly | – | – | – | – | Aluminium |
| Manufacture and repair of hose packages for welding robotsAssembly | – | – | – | – | – |
| Special machinery construction and jig/fixture constructionEngineering | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC lathe | – | several | D = 1-350mm, L = 450mm | – | Delmenhorst |
| Conventional lathe | – | several | D = 1-800 mm, L = 2000mm | – | Delmenhorst |
| Machining center (milling) | – | several | X= 1600mm Y= 620mm Z= 550mm | – | Delmenhorst |
| CNC milling machine | – | several | X= 630mm Y= 320mm Z= 350mm | – | Delmenhorst |
| MIG/MAG welding machine (some with pulse technology) | – | several | – | – | Delmenhorst |
| Straightening press, C-frame | – | 1 | up to 150 tons | – | Delmenhorst |
| Boring machine (conventional) | – | – | X= 1200 Y= 1100 | – | Delmenhorst |
| Boring machine (CNC-controlled) | – | – | X= 1000 Y= 900 | – | Delmenhorst |
| Surface planing machine | – | 1 | L= 4000, B= 1200, H= 1100 | – | Delmenhorst |
Additional services
Reference customers
Quality
The company is certified to ISO 9001 by Lloyds Register. On-time delivery, flexible working methods and high repeatability accuracy of the machining centers characterize production.
| Evidence | Delmenhorst |
|---|---|
| ISO 9001 |
Company History
- 1945
Heinrich Lünzmann founded a master craftsman's shop in metalworking (locksmithing) in Delmenhorst on 15 June 1945; starting with repair work and restoration of woodworking machines.
Driven by the reconstruction of the automotive industry in Bremen (Borgward and Lloyd), the business transformed into a service provider: design and manufacture of welding guns and welding cables for spot welding systems, plus special machinery construction and jig/fixture construction.
After 20 years, Heinrich Lünzmann handed the business over to his son Peter, who led and expanded the company for over 40 years.
- 2007
Since 1 June 2007, Frank Lünzmann has been managing the newly renamed company as managing director.