Double-acting Intensifiers with Pre-loaded Valve

Double-acting Intensifiers with Pre-loaded Valve - ROEMHELD D8.751

• Intensification ratio 1:1.929
• Max. operating pressure 265/500 bar
• Double acting
• with preloaded valve
• Intensification ratio: 1:1.929
• Intensification volume: 4,5 cm³
• Max. flow rate: 25 cm³/s (low-pressure side)
• Max. operating pressure: 265 bar (low-pressure side)

Advantages:

• Compact design
• Integrated control elements
• Manifold-mounting connection for drilled channels
• High-pressure only where needed
• Expensive high-pressure pump not required
• Savings by use of smaller clamping elements and work supports

Application:

The compact intensifier converts the hydraulic pressure on the primary side (input) into a higher pressure on the secondary side (output). This enables the use of the low pressure of machine tool hydraulics to pressurise a hydraulic cylinder with almost twice the pressure. In conjunction with drilled channels, the reduced dimensions allow a space-saving installation directly on the clamping fixture. When using work supports, the higher pressure has the following advantages:

• Most of the work supports obtain their highest support force at 500 bar
• Very often a smaller size can be installed
• For installation in limited spaces, smaller work supports can be used

Description:

The piston in the compact intensifier has a intensification ratio of 1:1.929. Since the high-pressure volume is only 4.5 cm³, the connected hydraulic cylinders are first moved into position by means of a filling valve. As soon as the pressure is increased to 6 bar, the preloaded valve opens. Then, the piston starts moving and generates the high-pressure volume. The piston returns via port Z. At the end of the stroke a tappet opens the built-in check valve in the piston, so that the connected cylinders can also return.

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