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Hydraulic bush

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ETP-OCTOPUS Hydraulic bush

  For fast, frequent and accurate linear positioning

  The hydraulic connection ETP-OCTOPUS is suitable when repositioning of machine parts are going to be done frequently, fast and with high precision along the shaft, for example in machine tools for qualified machining or forming of steel. With the use of an external hydraulic pressure source one or several connections can be clamped or loosened simultaneously.

  Exact positioning – low downtime

  In cold forming machine for steel tubes ETP-OCTOPUS 180 is used to fix the hydraulic pistons in required positions. The positions depends on the size of the tubes. At the end of the piston you find the forming tools. This allows a stepless positioning of each forming roller. The set up and downtime will be minimized.

  Fast changes – high flexibility

  In tablet compaction test equipment the compression tooling is often cam driven, so a change of tablet type requires a manual re-setting of the machine. IF the machine tool is locked with hydraulics, using ETP-OCTOPUS, to be able to access a higher flexibility and faster changes.

  ETP-OCTOPUS is available as standard for shafts 30-100 mm. Number of mountings 100 000 – 500 000. (pressure dependent). ETP-OCTOPUS is easy to build in, as no hub is required, and allows for fast, frequent and accurate positioning. Customized designs are also offered on request.

  Construction

  ETP-OCTOPUS is a hydraulic connection which consists of a double-walled hardened steel sleeve with a flange. In the flange there are bores for mounting of a hub and a scraper with a screw joint, threaded connection for hydraulic oil and an air relief screw. The inner diameter has spiral tracks in order to get an even friction and a defined locking force to the shaft.

  Operation

  The assembly of the hub is done with the screw joint. When hydraulically pressurized the inner sleeve expands uniformly against the shaft and creates a rigid joint. The sleeve does not expand to the outside. When the pressure is released the sleeve returns to its original size and can then easily be moved along the shaft to its new position and be re-pressurized.

  Benefits and features

  • Easy to build in.

  • Fast and accurate positioning.

  • Allows up to 500 000 pressure settings

  • High torsional stiffness.

  • Both axial force and torque can be transmitted.

X液压胀套-BLHC

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