Centering and clamping
inward (horizontal axis)
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Centering and clamping
inward (vertical axis)
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2200 psi max clamping
300 psi max unclamping
Double Acting
FEATURES: Our Hilma ZH-series Self-Centering Vises position and clamp workpieces exactly on a defined symmetrical axis, taking account of their contours. High-precision centering with +/-.0004" repeatability. This hydraulic vise provides automatic power clamping with exact force at the push of a button (requires external power unit). Sliding jaws are precision ground to accept standard or custom-made top-jaw tooling. Finest-quality construction for excellent rigidity and durability. Protected against coolant and chips by integral wipers in the clamping slide. Made in Germany.
SIZES: Available in three sizes, with jaw widths from 100 to 160mm — see Dimensions page for part numbers. Clamping force at 2200 psi:| | 100mm Jaw | | 3600 Lbs | | | 125mm Jaw | | 5600 Lbs | | | 160mm Jaw | | 9000 Lbs |
OPERATION (HYDRAULIC): During initial setup, adjust jaw opening to the workpiece using the center adjustment screw. When fluid pressure is applied to the A (clamping) port, the jaws slide inward to apply full clamping force. Switching pressure to the B (unclamping) port positively retracts the jaws. To clamp in the outward direction, reverse the A and B ports. Please note, unclamping pressure must be limited to 300 psi (order Pressure Reducing Valve separately).
ACCURACY: Centering repeatability +/-.0004" in both horizontal and vertical directions.
MOUNTING: Mount in any position, horizontal or vertical. Vises are all slotted for 20mm fixture keys, to provide accurate mounting on T-slotted machine tables. Use two Step Fixture Keys to adapt to a specific table-slot size. Fasten with Vise Clamps holding the bottom ledge.
OPTIONS: Available with an optional proximity switch to limit the opening stroke. |
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