Machining, welding technology and metal construction in precision engineering and structural steel from Itzehoe
ALFRED KRUSE MASCHINEN- UND METALLBAU GMBH
ItzehoeNew on Amplifa
Precision engineering and metal construction from Itzehoe
Alfred Kruse Maschinen- und Metallbau GmbH in Itzehoe (Schleswig-Holstein) has been manufacturing for over 60 years as a partner in precision engineering and metal construction. The range of services includes CNC and conventional milling as well as turning, welding technology (TIG 141, MIG/MAG 135/136, electrode 111, oxy-fuel), metal construction with locksmith work and structural steel, and sheet metal working with bending, shearing, rolling, laser, oxy-fuel, waterjet and plasma cutting. This is complemented by vibratory finishing, coatings, maintenance and assembly, and design engineering. Materials processed include structural steels such as S235 and S355, Hardox, stainless CrNi steels (1.4301, 1.4404, 1.4571), aluminium, copper, brass, titanium and cast iron. Rust- and heat-resistant steels as well as aluminium are processed separately in a dedicated stainless-steel workshop. Customers come from the printing and paper industry, food industry, medical technology and mechanical engineering. All processes are controlled throughout by an ERP system.
- Site
- Itzehoe
- Processes
- Milling (CNC and conventional), Turning (CNC and conventional), Welding technology EN1090-2 EXC2 / ISO3834-3, TIG welding (141), MIG/MAG welding (135/136), Manual electrode welding (111), Oxy-fuel welding, Metal construction (locksmith work, structural steel)
- Materials
- S235 (St37), S355 (St52), Hardox, 1.4301 (V2A), 1.4404, 1.4571 (V4A), Aluminium, Copper
- Certificates
- EN 1090-2 EXC2, ISO 3834-3, ISO 9001
- Industries
- Printing industry, Paper industry, Food industry, Medical technology, Mechanical engineering
- 01
Design engineering
- 02
Sheet metal working (laser, waterjet, plasma, oxy-fuel cutting, bending,
- 03
Machining (CNC and conventional milling and turning)
- 04
Welding technology
- 05
Metal construction (locksmith work, structural steel)
- 06
Vibratory finishing / coatings
- 07
Maintenance / assembly
Materials and processes
S235 (St37)
Structural steel for welded structural steel and metal construction fabrications.
S355 (St52)
Higher-strength structural steel for load-bearing steel components.
Hardox
Wear-resistant steel for overlay welding and wear-protection layers.
1.4301 (V2A)
Stainless CrNi steel, processed in the dedicated stainless-steel workshop.
1.4404
Stainless CrNi steel with enhanced corrosion protection.
1.4571 (V4A)
Heat- and acid-resistant stainless steel for structural applications.
Aluminium
Light metal, processed in the stainless-steel workshop separately from steel.
Copper
For welded components and parts.
Brass (limited)
Limited weldability, for special applications.
Titanium
For welded special components.
Cast iron
Among other things for repairs to exhaust manifolds.
CNC machining (Heidenhain)
Production of turned and milled parts with Heidenhain controls.
Site
Itzehoe
DEHeadquarters / Production
- Materials
- Steel, stainless steel, aluminium, copper, brass, titanium, cast iron
- Kiheung U-1250 CNC milling machine
- CME CNC milling machine
- Reckermann milling machine
- Kunzmann milling machine
- Conventional milling machines
- Seiger lathe
- Trens lathe
- Conventional lathes
- Heidenhain controls
- Stainless-steel workshop
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Milling (CNC and conventional)Machining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Turning (CNC and conventional)Machining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Welding technology EN1090-2 EXC2 / ISO3834-3Joining | – | – | – | – | S235 (St37), S355 (St52), Hardox, 1.4301 (V2A), 1.4404, 1.4571 (V4A), Aluminium, Copper, Brass (limited), Titanium, Cast iron |
| TIG welding (141)Joining | – | – | – | – | S235 (St37), S355 (St52), 1.4301 (V2A), 1.4404, 1.4571 (V4A), Aluminium, Copper, Brass (limited), Titanium, Cast iron |
| MIG/MAG welding (135/136)Joining | – | – | – | – | S235 (St37), S355 (St52), Hardox, 1.4301 (V2A), 1.4404, 1.4571 (V4A), Aluminium, Copper, Brass (limited), Titanium, Cast iron |
| Manual electrode welding (111)Joining | – | – | – | – | Steels, Cast iron |
| Oxy-fuel weldingJoining | – | – | – | – | Steels |
| Metal construction (locksmith work, structural steel)Joining | – | – | – | – | Steel, Stainless steel |
| Sheet metal workingForming | – | – | – | – | Steel, Stainless steel, Aluminium |
| BendingForming | – | – | – | – | Sheet (steel, stainless steel, aluminium) |
| ShearingForming | – | – | – | – | Sheet |
| RollingForming | – | – | – | – | Sheet |
| Laser cuttingForming | – | – | – | – | Steel, Stainless steel, Aluminium |
| Oxy-fuel cuttingForming | – | – | – | – | Steel |
| Waterjet cuttingForming | – | – | – | – | Steel, Stainless steel, Aluminium |
| Plasma cuttingForming | – | – | – | – | Steel, Stainless steel, Aluminium |
| Vibratory finishingSurface | – | – | – | – | Metals |
| CoatingsSurface | – | – | – | – | – |
| Overlay welding (Hardox, wear-protection layers)Joining | – | – | – | – | Hardox, Steel |
| Maintenance/assemblyAssembly | – | – | – | – | – |
| Design engineeringEngineering | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC milling machine | Kiheung U-1250 | – | – | – | Itzehoe |
| CNC milling machine | CME | – | – | – | Itzehoe |
| Milling machine | Reckermann | – | – | – | Itzehoe |
| Milling machine | Kunzmann | – | – | – | Itzehoe |
| Conventional milling machines | – | – | – | – | Itzehoe |
| Lathe | Seiger | – | – | – | Itzehoe |
| Lathe | Trens | – | – | – | Itzehoe |
| Conventional lathes | – | – | – | – | Itzehoe |
| Heidenhain CNC control (for turned/milled parts) | Heidenhain | – | – | – | Itzehoe |
Additional services
Certification
The welding technology is certified according to EN 1090-2 EXC2 and ISO 3834-3; in the structural sector there is an extension for rust- and heat-resistant steels. All processes are controlled throughout by an ERP system, which ensures on-schedule manufacturing including traceability.
| Evidence | Itzehoe |
|---|---|
| EN 1090-2 EXC2 | |
| ISO 3834-3 | |
| ISO 9001 |
History
For over 60 years, the company has combined traditional craftsmanship with state-of-the-art industrial production.