DV Hydraulics carried out a complete refurbishment of a 600-ton hydraulic press by integrating a highly energy-efficient servopump system. This 50-year-old press was fully overhauled mechanically and transformed into a modern, safe, and extremely energy-efficient installation.

The original hydraulic components were replaced by an advanced servopump system, new cylinders, and a completely renewed control and safety system.

The result: a powerful, quiet, and precise press that meets the strictest industrial requirements — including full new CE marking.

Project scope

The refurbishment covered both the hydraulic modernisation and the complete control and safety systems. The press was also mechanically overhauled, equipped with new main cylinders, and fitted with additional safety components compliant with PL e. The machine is now a future-proof installation offering efficiency, precision, and operational reliability.

Key results

• Energy consumption drastically reduced: from a constant 30 kW to an effective 2.8 kW → 91% energy reduction

• Significantly reduced noise level thanks to servopump technology

• No need for a large footprint : more compact installation, smaller reservoir, fewer components

• High precision thanks to servopump control and closed-loop position feedback

• Full new CE marking

• PL e safety level thanks to Sitema clamping systems, light curtains, and integrated safety logic

Main press specifications

• Pressing force: 600 tonnes

• Mechanical overhaul: Complete refurbishment of the press frame + installation of new cylinders

• Precision: Closed-loop servopump control, positioning accuracy better than 0.1 mm

• Existing frame: Reused, fully requalified

• Closing speed: Adapted to production requirements

Hydraulic installation

• Operating pressure: Maximum 350 bar

• Servopump system: High-efficiency servopump technology by DV Hydraulics

• Hydraulic fluid: Hydraulic oil VG46

• Energy efficiency: 91% lower energy consumption (30 kW → 2.8 kW effective)

• Noise reduction: Significantly quieter operation thanks to variable-speed drive

Control and safety

Control: Siemens PLC platform with integrated closed-loop control

Functions:

• Precise position control

• Process monitoring before and after pressing

• Improved repeatability and consistent production quality

Safety (PL e):

• Sitema safety clamping systems

• Light curtains for safe operation

• Integrated safety logic

• Full new CE compliance

Efficient, safe, and future-ready

This refurbishment demonstrates that older presses can be transformed into modern, energy-efficient, and extremely precise machines with a minimal ecological footprint. Thanks to servopump technology, advanced Siemens control, and high-quality safety components, this 600-ton press once again delivers top-level performance — with one of the lowest energy consumptions in the industry.

Do you have a demanding refurbishment or modernisation project?

DV Hydraulics specialises in the design, construction, and refurbishment of hydraulic systems and presses. We combine power, precision, and energy efficiency in a tailor-made solution. Contact us — we will be happy to help.