HydraVise™ Machine Vises
Controllable Power, Dependable Clamping
Dapra HydraVises are durably constructed to give industry a truly dependable vise suitable for milling, grinding, drilling, toolroom and production work and many other uses. The four Hydra Vise sizes are built to precision tolerances and accurate standards to ensure reliability and long life. Hydra-Vises combine a heavy-duty, rugged design with precision manufacturing and the highest quality materials available to give the best value to our customers.
- Standard HydraVise with hydraulic spindle and 360° swivel base.
Swivel base allows for accurate and quick setting of the vise within full 360° range. Accurate degree markings in 1° increments through 360° are standard.
- Standard Hydra Vise with Clampmatic spindle.
Totally automatic ClampMatic vise with a stroke of .080" allows parts to be clamped and unclamped utilizing an external source.
Extendable 6" ProVise with mechanical spindle.
Can clamp parts up to 31" or larger.
HydraVise Features & Benefits
- Massive Back Jaw is part of the vise base, not screwed or doweled on. Assures least jaw deflection possible.
- Replaceable hardened and ground jaw plates. Large variety of special jaw plates available, including Vee-, Serrated and Pull-Down Jaws.
- Movable jaw assembly protects and encloses lead screw. Accurately ground setup surface behind removable jaw plate. Facilitates checking of workpiece.
- Self-contained, high-pressure differential power mechanism. Available in hydraulic, mechanical and air-hydraulic.
- Removable crank handle is standard equipment for all vises. No crank extension necessary.
- Shoulder on high-pressure mechanical and hydraulic spindles limits pressure to the designed maximum. No overloading of system possible.
- Pressure indication rings on hydra-spindle facilitate graduated pressure setting. Each ring indicates one additional ton of pressure.
- Two hardened and ground steel cross pins allow instant adjustment of the movable jaw to the small or large clamping range. Jaw assembly may be pulled off the guideways to facilitate cleaning the vise; also makes larger vises easier to lift and move.
- ProVise has a narrow base style for close spacing of vises side-by-side. Ledge facilitates clamping to machine table.
- Strong l-beam design and flame-hardened ways make for the sturdiest base possible.
Self-Centering Vise for Universal Machining
Dapra has introduced a new line of self-centering vises for universal machining.
Two models, the SC-125 and the SC-090, are specifically designed to meet the demands of workholding on 5-axis milling machines. The new high-precision vises are compact, tall and self-centering.
Parts are being held high above the vise bed, which gives the machine tool spindle access to virtually all sides of a workpiece. The self-centering feature allows all coordinates of the workpiece to be programmed from a common reference point.
Both vises are very compact and will fit into most of today's smaller 5-axis milling machines. The Dapra SC-125 has a width of 4.9" (125mm) and is only 13.8" (350mm) long, but can cold parts up to 10.78" (274mm). The smaller SC-090 has a jaw width of 3.9" (90mm), a length of 9.8" (250mm) and holds parts up to 7.5" (192mm). Both vises have a repeatability of .0004" and accuracy of ±0.001.
The spindle is designed to obtain clamping forces from 4000 to 8000 lbs.
| Size: | 90 | 125 |
|---|---|---|
| A: | 250 | 350 |
| B: | 115 | 165 |
| C: | 20 H7 | 20 H7 |
| D: | 100 | 103 |
| E: | 125 | 125 |
| F: | 90 | 125 |
| G: | 30 | 30 |
| H: | 5 | 5 |
| I: | 3 | 4 |
| J: | 90 | 125 |
| Vise Weight: | 14.3 kg | 30 kg |
| Clamping field 01: | 6-76 | 8-108 |
| Clamping field 02: | 74-144 | 104-204 |
| Clamping field 03: | 54-124 | 78-178 |
| Clamping field 04: | 122-192 | 174-274 |
| Clamping field 05: | 58-128 | 76-176 |
| Clamping field 06: | 126-196 | 194-294 |
| Clamping field 07: | 106-176 | 146-246 |
| Clamping field 08: | 174-244 | 242-342 |
The clamping force depends on the torque applied to the handle.
Low-Profile Vise
The low silhouette and large clamping capacity of the Hydra-Vise are evident in this side view. The heavy steel construction and l-beam design guarantee dependable clamping.