WyBend H Series Heavy-Duty CNC Press Brake

The WyBend H Series is a high-capacity heavy-duty CNC press brake, available in 5 configurations, from the H 300 (3000 kN / 300 tonnes, 3200 mm) up to the H 800 (8000 kN / 800 tonnes, 6000 mm), designed for industries that process thick sheets and massive metal profiles where the capabilities of standard press brakes up to 220 tonnes are exceeded. With a hybrid hydraulic-servo drive system with 40–70% energy saving, a Renishaw / Heidenhain linear encoder with ±0.01 mm accuracy and automatic CNC deflection compensation, this heavy-duty CNC press brake combines the industrial force of large press brakes with the precision and energy efficiency of modern servo systems.

Compared with conventional hydraulic press brakes of the same capacity, the WyBend H Series heavy-duty CNC press brake uses the Yaskawa / Bosch Rexroth hybrid hydraulic-servo system: the servo motor drives the hydraulic pump variably, in proportion to the actual load, reducing energy consumption by 40–70% compared with fixed-pump systems that operate permanently at maximum capacity regardless of the current load.

Key advantages of the WyBend H Series heavy-duty CNC press brake

• Bending force 3000–8000 kN (300–800 tonnes): the largest capacity in the WyBend family. The WyBend H Series heavy-duty CNC press brake covers the 300–800 tonne range, far exceeding the maximum 220-tonne capacity of the WyBend E series and covering heavy-industry applications where 20–80 mm thick high-strength steel sheets must be bent over lengths of 3200–6000 mm.

• Hybrid hydraulic-servo system: 40–70% energy saving. The Yaskawa Japan / Bosch Rexroth Germany hybrid system continuously modulates the hydraulic pump's flow through the drive servo motor, consuming energy strictly in proportion to the actual bending load, a saving of 40–70% versus fixed-pump systems, with a significant impact on the operating costs of large press brakes running in continuous production.

• Working length up to 6000 mm: extra-long parts. The H 800 model of the heavy-duty CNC press brake processes sheets up to 6000 mm long, covering the long profiles used in the shipbuilding industry, steel-bridge construction and heavy industrial structures impossible to process on standard 4000 mm press brakes.

• Renishaw / Heidenhain linear encoder:±0.01 mm accuracy at high loads. The high-resolution linear encoders maintain position-feedback accuracy at ±0.01 mm even at 800-tonne loads, compensating for the elastic deformations of the massive frame under extreme loads and ensuring uniform angles over the entire 6000 mm length.

• Automatic CNC crowning system: deflection compensation at high forces. At forces of 300–800 tonnes over lengths of 3200–6000 mm, the deflection of the beam and the table is significant; the automatic CNC deflection-compensation system calculates and applies the optimal crowning with ±0.01 mm accuracy, ensuring a uniform angle over the entire part length.

• Automatic tool clamping: quick changeover on large formats. The TPA / Customize automatic tool-clamping system ensures quick changeover of punches and dies even on the 6000 mm format, reducing setup times on large press brakes where the manual changeover of long tools is time-consuming and physically demanding.

• Follow-up sheet support 1.5–6 m: assists heavy sheets. The follow-up sheet support synchronized with the beam movement assists the handling of heavy sheets weighing tens or hundreds of kilograms over lengths of 3200–6000 mm, preventing sheet deformation from its own weight and ensuring that the bending angle is not affected by material flexing outside the bending zone.

Technical specifications of the WyBend H Series heavy-duty CNC press brake

WyBend H versus WyBend E: heavy-duty versus maximum precision

The WyBend E Series with individual servo motors and a linear encoder at ±0.005 mm is the solution for maximum precision at forces up to 220 tonnes over lengths up to 4000 mm. The WyBend H Series heavy-duty CNC press brake covers a completely different segment (300–800 tonnes over lengths of 3200–6000 mm) with the hybrid hydraulic-servo system that makes efficient energy management of high forces possible. The ±0.01 mm accuracy of the WyBend H is appropriate for heavy-duty applications where the tolerances involve thick sheets with springback that is harder to control than on thin sheets.

Applications and industries for the WyBend H Series heavy-duty CNC press brake

The WyBend H Series heavy-duty CNC press brake is intended for producers in heavy industries that process structural steel sheets, high-strength steel (HSLA, Hardox) and thick plates for heavy steel construction. The shipbuilding industry uses the H 600 and H 800 models for bending hull and superstructure profiles from 20–50 mm sheets over lengths of 5000–6000 mm.

Producers of construction and mining equipment (excavator buckets, crane structures, heavy-machinery frames) use the WyBend H Series heavy-duty CNC press brake for bending Hardox and Weldox steel profiles with thicknesses of 15–40 mm, where the 300–500 tonne forces and the 3200–5000 mm lengths are standard specifications of the produced parts.

Plants producing steel structures for bridges, industrial pumping stations and energy infrastructure use the H 400–H 600 models of the heavy-duty CNC press brake for the production of beams and profiles from thick sheets, with the CNC crowning system ensuring angle uniformity over lengths of 4000–5000 mm even at forces of 400–600 tonnes.

How the WyBend H Series heavy-duty CNC press brake works

1. CNC programming with automatic force calculation: the Cybelec/Delem CNC system automatically calculates the force needed for the programmed material, thickness and angle, verifying that the load fits within the model's capacity; the parameters are stored for quick recall on repetitive orders.

2. Automatic CNC deflection compensation: at forces of 300–800 tonnes, the deflection of the beam and the table is substantial; the CNC crowning system calculates and applies the optimal crowning before bending to ensure a uniform angle over the entire 6000 mm length.

3. Load-proportional hybrid drive: the Yaskawa servo motor drives the Bosch Rexroth pump variably; on the rapid stroke (no contact with material) consumption is minimal; on the bending stroke under load, the pump delivers the necessary flow in proportion to the material's resistance, a 40–70% saving versus the fixed pump.

4. Bending with ±0.01 mm encoder feedback: the Renishaw linear encoders monitor the beam position at ±0.01 mm under hundreds of tonnes of load; the CNC system corrects in real time to compensate for the elastic deformation of the massive frame.

5. Synchronized follow-up sheet support: the sheet support rises synchronized with the upper beam during bending, keeping the sheet flat and preventing flexing over the 3200–6000 mm lengths with sheets that can weigh hundreds of kilograms.

Frequently asked questions about the WyBend H Series heavy-duty CNC press brake

What concrete energy saving does the hybrid system bring over a conventional 300-tonne hydraulic press brake?

A conventional 300-tonne hydraulic press brake with a fixed pump consumes power at the maximum level even when the beam descends empty or maintains the return pressure, that is, around 60–70% of the time at full power with no useful mechanical work. The hybrid system of the WyBend H Series heavy-duty CNC press brake consumes energy strictly in proportion to the actual load: on the empty descent consumption is 5–10% of maximum, on bending under full load consumption reaches maximum only for the fraction of a second of the useful stroke. The reported 40–70% saving translates into tens of thousands of lei per year in reduced electricity costs for a 300–800 tonne press brake in continuous production.

What foundation and hall requirements does installing the large H 600 / H 800 models involve?

The H 600 (5000 mm, dimensions 7000×4500×6500 mm) and H 800 (6000 mm, dimensions 8000×5000×7000 mm) models of the WyBend H Series heavy-duty CNC press brake require a reinforced-concrete foundation sized for the equipment's static load (tens of tonnes) plus the dynamic loads of the bending cycles, a hall height of at least 7.5–8 meters for clearance, and lifting/handling equipment (a factory crane or high-capacity forklift) for loading/unloading the 6000 mm sheets. UZINEX provides consulting and detailed foundation drawings before the order to prepare the infrastructure at the customer's site.

For what types of parts does the jump from the WyBend E (220 t) to the WyBend H 300+ pay off?

The jump from the WyBend E to the WyBend H is justified when production involves thick sheets above 20 mm over lengths above 3200 mm, a combination that exceeds the 220-tonne capacity of the WyBend E. Typically, this means: high-strength steels (Hardox 400/450, Weldox 700, S690QL) at thicknesses of 15–80 mm, long profiles for heavy-machinery bodies and mining equipment, pre-bent shell rings and cylindrical components for tanks and pressure vessels, or structures for bridges and energy infrastructure. For thin sheet (below 12 mm) and precision parts with strict tolerances, the WyBend E remains the correct choice even at large lengths.

Is the WyBend H Series heavy-duty CNC press brake eligible for European funding?

Yes. UZINEX supplies equipment for European-funded projects (PNRR, the Regional Program, the Just Transition Program) and is a member of the Enterprise Europe Network. The WyBend H Series heavy-duty CNC press brake is eligible for funding through programs for investment in heavy industrial production capacity and energy efficiency (the 40–70% energy-saving component is relevant for energy-transition programs). UZINEX provides the technical documentation for public procurement procedures and tenders.

Why UZINEX for the WyBend H Series heavy-duty CNC press brake

• Free technical consulting: model and infrastructure requirements. UZINEX evaluates the required forces, sheet thicknesses, maximum lengths and hall requirements to recommend the optimal H model and the foundation and installation conditions.

• Free transport, assembly and commissioning included: the heavy-duty CNC press brake is delivered, installed and calibrated at the customer's site by the UZINEX technical team, with metrological verification of the accuracy and complete training.

• Extended 60-month warranty: warranty for all components with technical support and intervention in under 36 hours.

• National technical support in under 36 hours: a 24/7 phone line and fast intervention.

• Smart AI manual included: AI assistance for 96%+ of technical requests.

• Full eligibility for European funding: documentation and support for EU, PNRR, structural funding.

The WyBend H Series heavy-duty CNC press brake is the solution for heavy industries that process massive sheets, with forces of 300–800 tonnes, a hybrid hydraulic-servo system with 40–70% energy saving, a working length of up to 6000 mm, a Renishaw linear encoder at ±0.01 mm and automatic CNC crowning, in 5 models from the H 300 to the H 800.