Short Stroke Screw Jack

Short Stroke Screw Jack

 

 

 

 

 

 

 

 

 

The short stroke screw jack is a compact miniaturized linear lifting actuator specially optimized for micro-travel adjustment and limited-space installation. Different from standard long-stroke lifting jacks that focus on large displacement movement, this series is engineered for precise short-distance lifting, fine leveling and tiny position correction. Adopting a minimized overall structure and optimized internal transmission ratio, it features ultra-short working travel, high positioning accuracy and strong structural rigidity. It is widely recognized as an ideal solution for equipment micro-adjustment, platform leveling and gap calibration in narrow and compact industrial layouts.

The short stroke screw jack adopts a highly integrated compact internal structure with optimized component layout. It removes redundant structural design while maintaining full mechanical stability, ensuring zero shaking and high repeatability during short-travel movement:

Compact Worm & Worm Gear Transmission Pair: Miniaturized high-precision worm and bronze gear assembly with optimized tooth profile. It provides stable torque output with low backlash, ensuring accurate micro-displacement transmission for short stroke adjustment.

Short-stroke Precision Screw Assembly: High-strength trapezoidal screw with optimized thread pitch. The shortened effective screw length enhances overall rigidity and anti-deflection performance, avoiding tiny displacement deviation during frequent micro lifting.

High-rigidity Integrated Housing: One-piece cast iron or alloy housing with compact cubic structure. The shrink-fitted internal chamber improves overall structural stability and effectively resists external vibration during short-distance cyclic operation.

Reinforced Miniature Bearing Group: Customized low-friction bearing combination reduces running resistance and bears axial and radial loads stably. It guarantees smooth and jitter-free operation even in frequent short-stroke reciprocating motion.

Precision Sealing & Lubrication System: Adopts multi-layer dust-proof and oil-proof sealing structure with long-life lubricating grease. It maintains stable transmission accuracy for a long time and reduces maintenance frequency for micro-adjustment equipment.

To adapt to diversified micro-adjustment scenarios, the short stroke screw jack supports flexible manual and electric input modes, meeting debugging, automatic calibration and synchronous fine-tuning demands:

Manual Handwheel Input: Equipped with lightweight detachable handwheel or crank handle. It allows ultra-fine manual rotation for precise micro-height calibration, especially suitable for equipment debugging and static leveling without power supply.

Standard Motor Direct Input: Compatible with ordinary asynchronous motors and brake motors for automatic cyclic short-stroke lifting. It is widely used for regular repeated fine adjustment of automated equipment.

Servo & Variable Frequency Motor Input: Supports high-precision servo drive and variable-frequency speed regulation. It realizes controllable micro-travel displacement and stepless speed switching, meeting high-precision process calibration requirements.

Dual-side Shaft Linkage Input: Reserved double-end input shaft structure, supporting multi-jack synchronous linkage. It ensures uniform micro-leveling of large platforms with consistent displacement synchronization.

Multiple interchangeable screw head designs are available for short stroke screw jacks to adapt to different micro-support, locking and connection methods in compact equipment:

Plain Flat Head: Smooth flat end for vertical plane support. It provides uniform stress distribution and is commonly used for platform leveling and flat contact micro-jacking.

Threaded Rod Head: Precision external thread design for direct locking connection. It can be matched with various fixtures and flanges to realize fixed-position tension and compression adjustment.

U-shaped Fork Head: Hinged pin hole structure for small-angle swing and tilt adjustment. Suitable for micro-angle correction of overturning and swinging mechanisms.

Flange Connection Head: Integrated end flange for bolt fastening. It features high connection stability and is suitable for long-term fixed micro-positioning equipment.

Anti-rotation Square Head: Custom square rod end to prevent screw rotation, ensuring pure vertical linear micro-displacement without lateral offset.

Short stroke screw jacks are specially designed for scenarios requiring small-travel adjustment, high precision and compact installation space. They are widely used in industrial fields that rely on micro calibration and accurate leveling:

Mechanical Equipment Leveling: Precision leveling of machine tools, processing platforms and assembly jigs, correcting tiny height errors to ensure equipment horizontal accuracy.

Automation Fine-tuning Mechanism: Micro gap adjustment of production line conveyor frames, tooling fine positioning and tiny stroke calibration of automated auxiliary mechanisms.

Testing & Laboratory Equipment: Small displacement lifting of test benches, sample fine adjustment and precision instrument leveling, providing stable micro motion for data detection.

Packaging & Printing Machinery: Micro lifting of molds, fine gap adjustment of pressing rollers and accurate positioning of printing components to ensure processing consistency.

Medical & Precision Instrument Industry: Low-amplitude lifting adjustment of medical auxiliary brackets and precision instrument supports, achieving stable and vibration-free micro displacement.

New Energy & Electronic Equipment: Micro calibration of photovoltaic brackets, battery tooling fine adjustment and electronic component testing platform leveling.

Construction Auxiliary Calibration: Local fine leveling of formwork and small structural component correction in narrow construction spaces.

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