会期

2023年5月24日(水)・25日(木)・26日(金)
10:00〜17:00(最終日26日のみ16:00まで)

会場

幕張メッセ

HBS VALVES & HYDRAULIC COMPONENTS

基本情報

屋内小間番号: A-66

出展製品・サービス

Overcenter valves

The overcenter valves are employed to control the stop and the motion of one direction of an actuator (single overcenter valves) or both the directions (dual overcenter valves).
Functions:
- load lowering control: the lowering of the load is possible only if there is a pilot pressure from the other line; this operation ensures the oil supply of the cylinder preventing cavitation problems;
- containing of the pressure at the setting value, pressure relief for any pressure peaks caused by shocks or overloads;
- arrest of the flow (and of the load) when the pump is not working or the directional valve is in neutral position;
- free flow for load lifting, with reduced pressure drops;

Pilot operated check valves

Check valves are normally used to allow free flow in one direction and to stop the fluid in the opposite one, unless a pilot pressure (Ppil) is applied by the other line of the circuit.
They can be used to ensure the static lock of a load, not for dynamic control or for lowering control.
If used in combination with restrictor valves, these ones should be preferably fitted between the actuator and the pilot operated check valve, not between valve and spool valve, so that the back pressure generated by the restrictor operates against the pilot pressure applied to the valve.

Rotation control valves

These valves are utilised to control the stop and the motion of cylinders and hydraulic motors for the rotation of hanged loads. Symmetrical capacity of both the rotation direction is typical of motors and cylinders for this application.

Slip ring series

The Slip ring Series SR130, SR200 have been designed not only to transfer energy signals AC and DC type from a rotating platform to a stationary structure and vice versa, but also to transfer analog or digital ones. This happens, for example, in case of remoted systems P/T, analog or digital type, according to the transfer of control signals for drive motors, and of feedback ones from the transducers of angular position.

The hydraulic rotary joint

The hydraulic rotary joint and electrical slip ring assy has been designed to conduit energy , hydraulic fluids and power for any application where is required to have a endless rotation , in order to transfer the energy from point A to B in the machines, application cases are , lorry and truck cranes, undercarriage , scissor and breakers .