Heavy Duty Hand Cranked Worm Gear Screw Jack 441 Lbs Load Capacity Flange Mount For Bench Leveling Built Like A Tank Cast Iron Housing No Sweat Vertical Lift Works Like A Charm Every Time

Robust Hand Cranked Worm Screw Jack for Stable Bench Raising
✔️ 200kg lifting range, 22mm thread rod, 14mm shaft, strong base

This single pack manual lifting fixture turns simple spinning motion into reliable vertical push, usually bolted under assembly stations, garage workbenches, and machine tables that need steady height tweaks. The big flywheel handle gives workers handy leverage for quick elevation changes without chasing down power cords or air hoses.

Specification	Measurement
Lifting Capacity	200 kg / 441 lbs
Screw Diameter	22 mm / 0.87 inches
Lead Pitch	4 mm / 0.16 inches
Input Shaft Size	14 mm / 0.55 inches
Drive Compatibility	Hand crank or motor adapter

✅ 22mm trapezoidal lead screw ensures smooth vertical travel ✅ Self locking gear train prevents accidental load descent ✅ Cast iron chassis resists shop floor impact and deformation ✅ Flange mount plate matches standard drilling patterns ✅ Single unit package includes necessary mounting hardware

💡 How do worm gear mechanical lifts prevent sudden drop failures during idle periods?

Operators trust these threaded systems because the internal helix angle creates automatic braking action under load. - Brass worm mesh tightly against hardened steel gears for dependable holding force - Reduced velocity mechanism multiplies input torque efficiently for heavy benches - Dry running capability eliminates maintenance worries around lubrication schedules - Straightforward manual control simplifies fine tuning during delicate material handling✝️

Specification	Measurement
Lifting Capacity	200 kg (441 lbs)
Screw Diameter	22 mm
Lead Pitch	4 mm
Input Shaft Size	14 mm with 5 mm keyway
Drive Compatible	Hand crank or motor adapter