| Customization: | Available |
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| After-sales Service: | Repair and Maintenance |
| Warranty: | a Year |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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Spiral jack, also known as mechanical jack, is a lifting tool driven by human labor. Its working principle mainly relies on spiral pair transmission, which drives the small gear to rotate by manually shaking the joystick, and then drives the screw to rotate through the joint operation of a pair of bevel gears, ultimately pushing the lifting sleeve to rise or fall, thus achieving the lifting or lowering of heavy objects
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