Press Brake Bending to 1,000 t – Large Sheets and Heavy Steel Plate
Precisely bend large sheets and heavy steel plate – up to 1,000 t press force on a 6,100 mm working width, cold forming of structural steel, fine-grain steel and Hardox in Lorch.
Up to 1,000 t press force
Hydraulic press brake for heavy plate with high bending resistance.
6,100 mm working width
Bend large sheets and long bent parts in a single stroke.
Heavy-load handling
2×25 t crane system for safe handling of large-format and heavy components.
Steel · fine-grain steel · Hardox
European quality steels up to Hardox 400/500 and S1100.
Bending instead of welding
Cold forming without thermal distortion and without a heat-affected zone – higher strength, less testing effort.
Downstream processes integrated
Welding, CNC machining, shot blasting and painting within the same facility.
Press Brake Bending at Bock – Die Bending with High Press Force
In press brake bending (die bending), a sheet is bent between punch and die under press force. Bend angle, position of the bend line and the sequence of bends are executed on the hydraulic press brake. The process enables precise bent parts with linear bend contours – from simple L- and U-profiles to multi-stage bend geometries.
At Bock, press brake bending is used primarily for large-format and heavy steel plate that subsequently goes into welded assemblies or heavy welded structures. Press brake bending is a preparatory production step – bent parts are then welded, machined, blasted or painted.
Bent parts from structural steel, fine-grain steel and Hardox are manufactured to drawing or specification. For complex bend geometries or special material requirements, feasibility is discussed with the customer in advance.
Bend Instead of Weld — Structurally Superior and More Economical
The best weld is no weld. Every bend replaces a welded joint — and with it a potential weak point in the component. That is why modern designs deliberately favour bending over welding, producing parts that are stronger, lighter and more economical to manufacture.
- Fewer Weak Points
- A weld is always a potential weak point — through notch effects, porosity, undercuts or residual stresses. A bent corner remains homogeneous base material and retains the full strength of the workpiece.
- No Thermal Distortion
- Bending is cold forming with no heat input. There is no thermal distortion, no need for straightening and no change to the microstructure — the component stays dimensionally accurate and perfectly flat.
- Greater Component Strength
- At the bend radius, the material's grain flow runs continuously. With no heat-affected zone (HAZ), the part performs better under dynamic and cyclic loading.
- Lower Costs
- A single bend replaces several work steps: edge preparation, welding and finishing are eliminated. This saves filler material, energy and throughput time — at a lower cost per part.
- Less Testing and Documentation Effort
- Where there is no weld, weld inspection (VT, PT, MT) and the associated documentation effort are no longer required. This reduces quality costs and speeds up acceptance.
- Clean Appearance
- Continuous edges with no weld beads and no grinding work — ideal for visible surfaces, cladding and high-quality coatings.
At Bock, bending and welding processes are combined under one roof: wherever bending is structurally feasible, it replaces the weld — and wherever joining is required, it is carried out certified to DIN EN 1090-2 EXC3. The result is components with a minimal number of welds, high strength and reproducible quality.
Two hydraulic press brakes — up to 1,000 t over a 6,100 mm working width
Two hydraulic press brakes are available at Bock: a Weinbrenner with up to 1,000 t pressing force and a Scharringhausen with 550 t — both over a 6,100 mm working width. This makes it possible to bend large plates and heavy steel plates that standard press brakes are not designed for.
Heavy components and large-format bent parts can be positioned and safely handled via the 2×25 t crane system in the production facility. This also enables the bending of plate that requires special handling due to its dimensions or weight.
Machine data
| Machine | Press force | Bending length |
|---|---|---|
| Weinbrenner · Press brake | 1,000 t | 6,100 mm |
| Scharringhausen · Press brake | 550 t | 6,100 mm |
When is Press Brake Bending the Right Process?
Press brake bending is particularly suited to the following requirements and component types:
- Linear bend contours – L-profiles, U-profiles, Z-profiles and box sections
- Large sheets and heavy steel plate with high bending resistance
- Bent parts to drawing with defined angles and bend lines
- Structural steel, fine-grain steel and Hardox
- Bent parts as a preparatory stage for welded assemblies and welded structures
For cylindrical or radius-based forms, plate rolling is the more appropriate process. Press brake bending and plate rolling can be combined within the same production facility – process selection depends on component geometry.
Suitable Materials for Press Brake Bending
Bock uses predominantly European quality steels with traceable origin for press brake bending:
- Structural steel (S235, S355)
- Fine-grain and high-strength structural steel
- Hardox (wear-resistant steel for abrasively loaded components)
- Stainless steel 1.4301, 1.4571 – corrosion-resistant
- Further structural steels to drawing or specification
Material quality and origin are documented through inspection certificates and material records where required by project or customer specifications.
Manufactured to Drawing – Quality Management System to DIN EN ISO 9001:2015
Bent parts are manufactured to drawing or technical specification. Bend angles, dimensional accuracy and bend line positions are determined by customer requirements. For particular accuracy or quality requirements, feasibility is discussed in advance.
Bock Maschinenbau operates a certified quality management system to DIN EN ISO 9001:2015. Press brake production is embedded within this quality framework – documentation obligations and inspection requirements are agreed on a project basis.
As a certified welding contractor to DIN EN 1090-2 EXC3 and EN ISO 3834-2, bent parts are frequently used as a preparatory production stage for certified welded assemblies – the entire production process remains within a certified quality framework.
Welding, CNC Machining, Painting and Assembly Where Required
Bent parts produced by press brake bending frequently require further production steps. The following operations can be integrated into the project workflow as required:
- Welding and Joining
- MIG/MAG, TIG and SAW welding for welded assemblies and heavy welded structures to DIN EN 1090-2 EXC3.
- CNC Heavy Machining
- CNC heavy-part machining up to 50 t, portal milling up to 26,000 mm, vertical turning up to Ø 4,800 mm.
- Surface Preparation
- Shot blasting to Sa 2.5 in a large-format blast chamber.
- Corrosion Protection and Painting
- Industrial painting to EN ISO 12944 in a 25 × 7 × 6 m large-format spray booth.
- Assembly
- Project-specific pre-assembly or partial assembly of components.
Bent parts can therefore be not only formed but also welded, machined, surface-prepared, coated or pre-assembled within the same production facility – subject to agreement and project requirements.
Typical Applications for Press Brake Bending
Press brake bending at Bock is applied where large-format or heavy bent parts are needed as a preparatory stage for complex assemblies:
- Large-format angles, profiles and box sections from steel plate
- Bent parts for welded assemblies and heavy welded structures
- Formed parts from Hardox and fine-grain steel for wear- or load-bearing components
- Panels, enclosures and structural parts for plant and special vehicle engineering
- Pre-formed parts for further processing in CNC heavy machining
Press brake bending complements the production range for welded assemblies and heavy welded structures – as the necessary preparatory forming step for bent parts from heavy steel plate.
Press Brake Bending – Why Bock
Bock Maschinenbau operates press brake bending in Lorch as part of a complete production and quality process:
- Press Force
- Press brake with up to 1,000 t press force
- Working Width
- 6,100 mm working width for large sheets and long bent parts
- Crane Capacity
- 2×25 t crane system – safe handling of large-format and heavy components
- Material Expertise
- European quality steels including structural steel, fine-grain steel and Hardox
- Quality Management
- DIN EN ISO 9001:2015 and certified welding contractor to DIN EN 1090-2 EXC3
- Downstream Operations
- Welding, CNC machining, shot blasting, painting and assembly integrable within the same production facility
- Forming for the region
- Vessel, apparatus and vehicle builders from the Stuttgart area and the DACH region have large plates up to 6,100 mm press-braked at our plant in Lorch – including Hardox and high-strength fine-grain steels.
Contact
Your project — right from the region
Send us your enquiry for contract manufacturing, structural steel or custom machinery — we'll get back to you promptly.
Request Press Brake Bending
For an initial assessment, please provide your drawing or technical specification, material, sheet thickness, bend geometry and quantity. We will assess feasibility and prepare a project-specific quotation.