Hydraulic components

Oil-oil hydraulic intensifiers with fixed intensification ratio

Oil/oil hydraulic intensifiers are designed to convert the low pressure of the primary circuit into a higher pressure in the secondary circuit downstream from the intensifier on the basis of the intensification ratio. As soon as the hydraulic intensifier is no longer pressurized, the downstream pressure is reduced to zero, the intensifier returns into the initial position and is ready for the next working cycle.
When equipped with the appropriate accessories (flow-control valves or sequence valves) hydraulic intensifiers with fixed intensification ratio are suitable for operation in highly complex hydraulic circuits with substantially higher oil volume.

These hydraulic intensifiers DO NOT REQUIRE ANY LEAKAGE LINE or devices to avoid unintentional opening of the circuit. They can also be installed on fixtures that are separated from the supply during the machining cycle and remain pressurized during this phase, which implies that they do not feature the typical restrictions of continuous (pumping) intensifiers.

Sequence valves

Sequence valves are used in hydraulic systems that require a pressure-specific priority or sequence of motions. A one-directional check valve is provided for the free return flow when
operation is inverted. These extremely compact valves can be mounted either with the supplied O-Rings or in-line using the G1/4” BSPP ports directly on the clamping equipment.

Pressure reducing valves

This valve is used to provide a reduced constant outlet
pressure compared to the higher inlet pressure.

Pressure monitoring cylinder

The CP30F pressure monitoring cylinder has been developed to check the clamping pressure in a remote fixture. As soon as the
clamping pressure is reached, the external bolt is extended by 3 mm from the cylinder head and remains in this position as long as the operating pressure required for the fixture is maintained.
If the clamping pressure decreases, the rod is retracted again into its initial position. Thanks to the easy adjustment of the operating pressure by an adjusting screw at the cylinder and the availability of different pressure ranges, the CG30P stands out for unparalleled versatility.

VCS Valves

VCS valves can be used to control the clamp arm position or to detect the workpiece in machining position. When using the VCS03, VCS13 or VCS23 valve types for clamp arm position control, the workpiece can simultaneously be monitored. Valves of this design exhibit not only two positions (open/closed), but three positions (open/closed/open). Provided the valves are correctly adjusted, the NOK for machining of the pressure switch can also be maintained with the cylinders being closed and pressurized. If no workpiece is detected when the clamped cylinders reach the limit stops, the valves are opened again for the air flow, the pressurization of the line (NOK of the pressure switch) is prevented and the machining of the workpiece is not enabled (VCS03, see item 1a). This valve model comprises three signals: “Cylinder open”, “Cylinder closed on workpiece” and “No workpiece in machining position”.

Valve protection cartridge

With the CPV01 valve protection cartridge the final user can perform clamping operations without any workpiece being mounted in the fixture for a functional check or for cleaning purposes. In this case, there is no risk of damage to the VCS clamp arm position control valve caused by excess stroke.
Upon request, the valve protection cartridge is available for the entire swing clamp cylinder series.

Flow control valves

Using the unidirectional flow control valve, the end user can set the swing speed of the clamp arm directly at the fixture and define the clamping sequence of the cylinders at the workpiece to be machined.

Filter elements

The Hydroblock modular filter had a particularly compact design. The complex filtering system with two flow directions is made of special steel; the nominal mesh size is 10/25 micron. The filter insert can be easily checked and replaced. The zinc-plated metal body is particularly suitable for installation in state-of-the-art machine tools and offers optimum protection for hydraulic clamping systems, valves and pressure intensifiers. These filters are also indispensable for systems equipped with manual or automatic quick-action couplings, where a contamination of the hydraulic circuit by chips and metal particles can hardly be avoided during coupling and uncoupling.

Throttle check valves

These valves are designed to control the oil supply flow rate to the application-specific requirements, while the oil return flow.

Hydraulically pilot-operated check valve

This valves are usually used to block a cylinder or a part of the hydraulic circuit.

Coupling unit

Manually operated pressure coupling unit for single- and double acting cylinders. This unit is used when the clamping equipment is separated from the hydraulic pressure generator, i.e. for manufacturing systems with pallet change or when a single pressure generator is used for several clamping devices.

Diaphragm accumulators

Hydraulic accumulators are used in static clamping systems to compensate internal leakage or to minimize pressure variations caused by temperature changes.

Pressure gauges / Modular valves

Radial pressure gauges in glycerine bath.

These valves are designed for in-line mounting and can be installed in any position.