About
This heavy‑duty 20‑ton pneumatic‑hydraulic jack combines the speed of air operation with the control of hydraulic lifting, making it ideal for workshops and heavy‑vehicle maintenance. Its safety valve, patented bypass device, and built‑in silencer ensure reliable, quiet, and protected operation, while large rubber wheels and multiple handle angles deliver unmatched maneuverability and ergonomics.
Product Features
- Safety Valve & Bypass Device: Prevents over‑pressurization and internal damage (U.S. Patent No. 4,077,608).
- Air‑Operated Lift: Quick raise from 8–14 bar air pressure to the initial hydraulic position.
- Hydraulic Extension: Smooth 135 mm hydraulic ram lift for precise height control.
- Adjustable Handles: Three angle settings—90° (storage), 45° (carrying), and 0° (operational access).
- Large Rubber Wheels: Solid 250 mm‑diameter wheels for easy positioning, even under load.
- Self‑Return Spring: Reduces operator effort by automatically retracting the ram.
- Built‑In Silencer: Muffles air intake noise for quieter operation.
- Chrome‑Plated Rams: Corrosion‑resistant surfaces for long service life.
- Extension Screw: Provides additional fine‑tuning of maximum lift height.
Product Specifications
- Capacity: 20 tons
- Minimum Height: 260 mm
- Maximum Height: 495 mm
- Hydraulic Lift Stroke: 135 mm
- Air Pressure Required: 8–14 bar
- Wheel Diameter: 250 mm solid rubber
- Gross Weight: 35.4 kg
- Handle Positions: 0°, 45°, 90°
- Patent: U.S. No. 4,077,608 (built‑in bypass device)