Manual coupling systems are applied with machine tools that operate with hydraulic fixtures but do not have a standard equipment of a hydraulic interface for oil supply to the fixture pallet. The operating personnel take care of coupling and decoupling. In contrast to quick-locking couplings, manual couplings do not bear the danger of mixing up pressure line and tank line. Also, the coupling process is made much faster. After clamping the workpiece it is easy to unclamp the system without effort by the use of a hydraulically piloted check valve. Also the system pressure remains. To unclamp the system the T-port must be pressurized. At the single-acting coupling system the ball valve takes this feature.

Through the integrated proximity switch the safety holder can be directly connected to the machine control. So, the pallet transport is only permitted in uncoupled state.

Founded 1998, HYDROKOMP designs, manufactures and distributes hydraulic components, coupling systems and clamping technology for mechanical engineering, fixture construction, tooling and many other branches of industry also for different operating conditions.

Required safety elements are already integrated. These include one hydraulic accumulator, one check valve and one pressure relief valve which protects the hydraulic accumulator from a pressure rise over 10%. The coupling unit can be equipped with two different hydraulic accumulators. HYDROKOMP recommend the accumulator with 13 cm³ nominal volume up to an oil volume of approx. 100 cm³ in the fixture. When the required oil volume is larger, the hydraulic accumulator with 40 cm³ nominal volume should be applied. The hydraulic accumulators are subject to technical rules for pressure vessels. As standard the manual coupling systems are equipped with manifold and G1/4 threaded ports for oil supply. All flange-on surfaces have O-ring counter-bores on the bottom and on the rear side, which also allow oil supply without pipes through drilled ducts.

Coupling mechanism board, which locks both components for pressure transfer. Both tension rods are inserted into the bayonet catch. Then the levers are turned to the side by 90°. Through two integrated drafts the tension rods are shortened and the coupling process is executed. The locking stroke is 5 mm.

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HYDROKOMP is the right supplier for companies of mechanical engineering fixture construction, tooling and many other branches of industry worldwide. Constructive ideas and customer-specific designs are our particular strengths.

Each and every one of our products is developed and manufactured according to the highest quality standards. With modern CAD systems we design new solutions. After that, current procedures of precision manufacture and quality assurance are next in process.

A safety holder with an inductive proximity switch is optional available for the double-acting coupling system. The safety retainer keeps the coupling mechanism board in the decoupled state into a parking station. Through the integrated proximity switch the safety holder can be directly connected with the machine control. With that, the pallet transport is only permitted in decoupled state. With the help of a equalizer valve in the coupling nipple of the T-port the pressure rise is limited to about 5 bar in decoupled state, eg. when a leakage in the system occurs. For coupling and uncoupling of the coupling nipple unit and the coupling mechanism board both hydraulic lines must be depressurized by the hydraulic valves.

Our qualified employees and our modern CNC machinery ensure high flexibility product variety and quality. HYDROKOMP products are designed for long-lasting application in rough industrial daily routine. Our customers can surely trust that the process will flow smoothly.

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1. Coupling nipple with pressure relief valve 2. Hydraulic accumulator 13 cm³ or 40 cm³ (optionally) 3. Hydraulically operated check valve Qmax. = 20l/min 4. Pressure gauge up to 600 bar 5. Pressure relief valve, opening pressure 425 bar 6. Coupling nipple for depressurized coupling

4-fold coupling mechanism board with 3x coupling mechanisms ND 5 and 1x ND 3, for depressurised coupling, customer specific design

Double-acting coupling nipple unit with 13 cm³ hydraulic accumulator, coupling mechanism board and safety holder for coupling mechanism board with proximity switch

1. Hydraulic accumulator 13 cm³ or 40 cm³ (optionally) 2. Pressure gauge up to 600 bar 3. Pressure relief valve, opening pressure 425 bar 4. Flat face plug with dust cover 5. Ball valve 6. Port Ø5 mm, O-ring or screw plug 7. Cap head screws DIN 916, M6x60 (not included)

Safety holder with inductive proximity switch and plug (cable length 3 m). The safety holder takes up the uncoupled coupling board into a parking station.