Integrated T-type Trapezoidal Thread Drive Pair
The whole machine is equipped with high-precision T-screw and tin bronze worm gear pair. Mechanical self-locking is formed by thread sliding friction without ball structure, delivering simple and stable performance for long-term static load holding.
Six-sided Universal Mount Cast Iron Housing
Integrally cast QT450 ductile iron square body with standard mounting holes on all six surfaces. It supports vertical, horizontal and inverted inclined installation, and all screw end fittings are interchangeable.
Integrated Oil Bath Sealed Lubrication Chamber
Fully enclosed housing with built-in oil storage cavity and double-layer skeleton oil seals on end faces. Matched telescopic dust bellows block dust and cutting fluid from entering meshing transmission parts.
Safe Self-locking Without Extra Brakes
The T-thread locks loads firmly by friction angle after power cut to prevent load falling. It eliminates extra costs for brake motors and mechanical locks, simplifying overall equipment matching solutions.
Dust-resistant & Long Service Life in Harsh Conditions
Without precise circulating ball components, it avoids jamming caused by dust accumulation. It features stronger anti-pollution performance and longer service life in dusty workshops and outdoor equipment than ball screw jacks.
Excellent Compatibility for Multi-unit Synchronization
Standardized input shaft and flange dimensions. It can form synchronous lifting systems with multiple jacks matched with bevel gearboxes and rigid drive shafts, delivering stable leveling precision for solar brackets and lifting tooling.
Q: Is the self-locking performance stable under no-load and rated load for JWB T-screw jack?
A: The friction angle of standard T trapezoidal thread is larger than lead angle, so self-locking works steadily within rated load. Auxiliary mechanical locks are recommended for working conditions with continuous impact vibration to improve safety margin.
Q: Will oil leakage happen if the housing is installed horizontally or upside down?
A: Anti-reflux oil grooves are built inside the chamber, cooperating with double-layer oil seals to store lubricant normally at all mounting angles without leakage.
Q:Can lifting stroke be customized? What is the maximum standard stroke length?
A:Custom stroke is available. The maximum standard stroke of single-stage screw is 3 meters. Telescopic bellows can be equipped for long travel, and telescopic screw structure is optional for heavy-duty ultra-long stroke applications
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