Specialist in roll bending and curving of structural profiles, tubes and beams up to a section modulus of 10,000 cm².
STURM Metallbearbeitung GmbH & Co. KG
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Specialists with profile
STURM Metallbearbeitung GmbH & Co. KG specializes in the bending technology of structural profiles. Founded in 1965 by Karl and Alfred Sturm, the company processes profiles, tubes, square and round bar in unalloyed and alloyed materials up to a bending section modulus of 10,000 cm². Products include arc segments, rings, half-rings and ellipses; multiple radii and 3D bends are possible. Part of the machine fleet, consisting of various profile bending machines, consists of in-house developments for cold forming. In addition to roll bending and curving, downstream processing includes drilling and thread cutting, sawing to length, and welding work through to ready-to-install steel and composite constructions and complete assemblies. With around 40 employees, Sturm supplies industries such as structural steel construction, mechanical and plant engineering, shipbuilding, façade construction, offshore and tank construction, both as single items and in high volumes.
- Processes
- Roll bending, Curving (plate bending), Downstream processing (drilling + threading, sawing to length, welding work), Bending of profiles, tubes, square and round bar up to a bending section modulus of 10,000 cm², Bending of angle profiles (legs inward/outward, 20x20x3 to 250x250x24 mm, Ø inner 400–3000, Bending of T-profiles (web upright/outward/inward, 20x20x3 to 1/2 HE 1000 B, Ø inner, Bending of I- and H-profiles (IPE 80–IPE 750, HE 100 AA–HE 1000 B, weak axis 1600–4000 mm,, Bending of U-profiles (30x33x5 to UNP 400, Ø inner 800–8000 mm)
- Materials
- Structural profiles, Tubes, Square bar, Round bar, Unalloyed materials, Alloyed materials, Flat steel, Beams
- Certificates
- Welding certification DIN 18800-7 (2002-09), Class D, DIN EN ISO 3834-2, AD 2000 Merkblatt HP0, EN 1090, Quality management based on DIN EN ISO 9001 (internal QM system), ISO 9001 (internal QM system), DIN 18800-7 Class D, AD 2000 HP0
- Founded
- 1965
- Employees
- 40
- Industries
- Steel and metal construction, Mechanical and plant engineering, Shipbuilding, Facades, Offshore / Renewable energies, Tank and plant engineering
- 01
Consulting and project planning
- 02
In-house toolmaking
- 03
Roll bending / curving (cold forming)
- 04
Downstream processing (drilling, threading, sawing, welding)
- 05
Quality control
- 06
Delivery of ready-to-install assemblies
Materials and processes
Roll bending
Cold forming of profiles, tubes, square and round bar in almost all bending directions up to a section modulus of 10,000 cm².
Curving (plate bending)
Cladding and bending of sheets and flat products for segments, rings and ellipses.
Welding work
Downstream processing with certifications according to DIN 18800-7 Class D, ISO 3834-2, AD 2000 HP0 and EN 1090.
Structural profiles, tubes, beams, angles, U-profiles
Bending from the smallest to the largest standard commercial dimensions, e.g. IPE 80–IPE 750, UNP 400, round tubes Ø 8x1.6 to 622x30 mm.
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Roll bendingForming | – | – | – | – | – |
| Curving (plate bending)Forming | – | – | – | – | – |
| Downstream processing (drilling + threading, sawing to length, welding work)Joining | – | – | – | – | Steel |
| Bending of profiles, tubes, square and round bar up to a bending section modulus of 10,000 cm²Forming | – | – | – | Single items – High volumes | Structural profiles, Tubes, Square bar, Round bar, Unalloyed and alloyed materials |
| Bending of angle profiles (legs inward/outward, 20x20x3 to 250x250x24 mm, Ø inner 400–3000Forming | – | – | – | – | Steel |
| Bending of T-profiles (web upright/outward/inward, 20x20x3 to 1/2 HE 1000 B, Ø innerForming | – | – | – | – | Steel |
| Bending of I- and H-profiles (IPE 80–IPE 750, HE 100 AA–HE 1000 B, weak axis 1600–4000 mm,Forming | – | – | – | – | Steel |
| Bending of U-profiles (30x33x5 to UNP 400, Ø inner 800–8000 mm)Forming | – | – | – | – | Steel |
| Bending of flat steel (30x5 to 1000x180 mm, as tires 300–6500 mm, as flanges 500–12000 mm ØForming | – | – | – | – | Steel |
| Bending of square bar (20x20 to 320x320 mm, Ø inner 400–10000 mm)Forming | – | – | – | – | Steel |
| Bending of square hollow sections (20x20x2 to 400x400x20 mm, also lying on edge)Forming | – | – | – | – | Steel |
| Bending of rectangular hollow sections (50x25x2.5 to 500x300x20 mm, upright and flat)Forming | – | – | – | – | Steel |
| Bending of round bar (Ø 8 to Ø 320 mm)Forming | – | – | – | – | Steel |
| Bending of tubes (Ø 8x1.6 to Ø 622x30 mm)Forming | – | – | – | – | Steel |
| Bending of rails (A 14–A 120, S 10–S 54, head outward/inward)Forming | – | – | – | – | Steel |
| Production of arc segments, rings, half-rings and ellipses, multiple radii and 3D bendsForming | – | – | – | – | Beam profiles, Angle profiles, Hollow sections, Rectangular tubes, Square tubes, Round tubes, Flat steels, Special profiles |
| Welding work (welding certifications DIN 18800-7 Class D, DIN EN ISO 3834-2, AD 2000 Merkblatt HP0,Joining | – | – | – | – | Steel |
| Ready-to-install execution of steel and composite constructions for building, civil, bridge andAssembly | – | – | – | – | Steel |
| In-house toolmaking (design and manufacture of bending tools)Engineering | – | – | – | – | – |
| Consulting and project planning on bending technologyEngineering | – | – | – | – | – |
| Delivery of complete assemblies, ready-to-install processing of steel productsAssembly | – | – | – | – | Steel |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Profile bending machines (various, partly in-house developments) | – | – | – | – | – |
| Self-developed bending machines for cold forming | In-house development | – | Section modulus up to 10,000 cm² | – | – |
Additional services
Quality
Continuous quality checks are carried out during processing; the internal QM system is based on DIN EN ISO 9001. Available are welding certifications according to DIN 18800-7 Class D, DIN EN ISO 3834-2, AD 2000 Merkblatt HP0 and EN 1090.
| Evidence | Company |
|---|---|
| ISO 9001 (internal QM system) | |
| DIN 18800-7 Class D | |
| DIN EN ISO 3834-2 | |
| AD 2000 HP0 | |
| EN 1090 |
History
- 1965
Founded by Karl and Alfred Sturm as a haulage company; started with a second-hand bending machine.
Developed over roughly 50 years into one of the best-known providers of profile bending technology in Europe; use of self-developed bending machines for cold forming.