Каталог Widia инструментальная оснастка

Function	Effect
Tightening the piston clamping screw exerts force on the pressure piston, which	The hydraulic clamping system has a dampening effect. Vibration in a mechanical
presses the hydraulic fluid, exerting force on the thin-walled expansion sleeve. This	clamping system can cause microcracking on insert cutting edges. This is
pressure causes the sleeve to compress around the tool shank, creating a highly	prevented by the hydraulic expansion chuck and results in higher production
concentric clamping force.	quality and up to 4x better tool life.

Accuracy The accuracy shown is based on a round shank (no flats) with h6 tolerance and no reducing sleeve.

set screw for tool length adjustment piston clamping screw expansion chamber

clamping bore pressure piston tool length adjustment sleeve hydraulic medium

Features

Turning the external set screw adjusts axial tool length. There is no need to remove the cutting tool or coolant supply unit for standard designs.
Maintained contact with the tool-length adjusting sleeve ensures that the tool is safely held. 10mm of adjustment is provided.
A sealed bore and a large hole through the tool-length adjusting screw enable maximum coolant to flow through coolant-fed cutting tools.
A uniquely designed piston clamping screw prevents damage from overtightening and accidentally actuating the hydraulic mechanism without a tool in the chuck.

High-performance balanced chucks can be converted to balanceable chucks by adding a set of WIDIA™ balance rings that compensate for cutter imbalance and optimize performance.
Wiper grooves inside the bore safely grip oily shanks, sealing the bore to eliminate contamination from chips, dirt, or coolant.
SEFAS™ chamfering rings can be added to chucks, reducing the need for step drills and secondary chamfering operations.
A wide assortment of reducer sleeves are available to increase the application range of hydraulic chucks. When using a bushing, the runout could be up to twice as high as the example shown.

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