High-speed Ball Screw Jack

 

High-speed Ball Screw Jack

 

High-speed Ball Screw Jack

Ball Screw Jack

High-speed Ball Screw Jack

Ball Screw Jack

The High-speed Ball Screw Jack is a specialized linear actuator that converts rotational motion into high-velocity linear motion through a precision-machined ball screw and high-efficiency gear drive system. Its core advantage lies in the rolling friction principle of the ball screw, which minimizes friction between the screw and nut, enabling significantly higher speeds and efficiency compared to traditional sliding friction-based screw jacks. With a transmission efficiency of 90% to 95%-far exceeding the 30% to 70% of trapezoidal screw jacks-it maintains extremely low temperature rise and wear even during continuous high-speed operation. This actuator is designed to handle light to heavy loads while ensuring micron-level positioning accuracy, making it ideal for applications such as automated packaging lines, high-speed material handling, precision testing equipment, and industrial lifting systems that require rapid cycle times and consistent performance. It features a compact, modular design that allows for flexible installation in tight spaces, with full customization options to adapt to diverse industrial requirements, including load capacity, stroke length, and speed range.

Ultra-High Speed & Efficiency: Equipped with a high-performance ball screw and optimized gear transmission, it achieves linear speeds up to 550 mm/s, significantly reducing operation cycle time and improving production efficiency. The rolling friction design ensures high transmission efficiency, minimizing energy consumption and reducing heat generation during long-term high-speed operation, which is crucial for 24/7 continuous working scenarios (100% duty cycle).

Exceptional Precision & Stability: Precision-ground ball screw (C3/C5 grade) and high-precision gear set deliver repeat positioning accuracy up to ±0.01 mm, ensuring consistent motion control even at high speeds. The integrated ball nut and worm wheel design distributes load uniformly, enhancing stability and extending service life, while the anti-rotation guide minimizes screw drift for reliable performance batch after batch.

Low Friction & Long Service Life: The ball screw's rolling contact design reduces friction to a minimum, avoiding excessive wear and tear compared to traditional screw jacks. High-quality materials-including induction-hardened screw shafts and case-hardened nuts-ensure excellent wear resistance and corrosion resistance, with an expected service life of ≥50,000 hours under normal operating conditions. The optimized ball return system further reduces running noise and extends component longevity.

Compact Design & Flexible Installation: The integrated structure (combining ball screw, gearbox, and housing) eliminates redundant components, resulting in a compact, lightweight design that saves installation space. It supports multiple mounting orientations (upright, inverted, horizontal) and can be easily integrated into existing production lines without extensive modifications. The cubic housing design allows for flexible mounting and compatibility with multi-jack synchronous systems without additional bevel gears.

Low Maintenance & Cost-Effective: Pre-filled with lifetime high-temperature anti-wear lubrication (grease for the screw section and oil bath for the gear section), it requires no regular oil changes or complex maintenance, reducing operational costs and downtime. Unlike hydraulic systems, it has no oil leakage risks, keeping the working environment clean and eliminating the need for auxiliary equipment such as pumps and pipelines.

The High-speed Ball Screw Jack features a robust, integrated internal structure, with each component precision-machined and optimized for high-speed performance, stability, and durability. All components work in synergy to ensure smooth, efficient power transmission and precise linear motion:

High-Precision Ball Screw: The core component, made of high-strength alloy steel with full induction hardening and precision grinding. It features an optimized raceway profile and contact angle, paired with high-quality steel balls that circulate smoothly between the screw and nut. The integrated ball return system (incorporated into the nut body) enables high rotational speeds up to 150,000 DN, ensuring rapid linear motion without sacrificing precision. The ball screw converts rotational motion into linear motion with minimal friction, delivering high efficiency and low wear.

Integrated Ball Nut & Worm Wheel: A key structural innovation that combines the ball nut and worm wheel into a single component, reducing overall size and eliminating mechanical clearance. This design ensures uniform load distribution on the ball nut, improving safety and extending service life. The worm wheel is made of special aluminum bronze material, precision-machined for high strength and smooth meshing with the worm shaft.

High-Efficiency Gear Drive: Equipped with a hardened alloy steel worm gear set or bevel gear transmission, designed for high-speed, low-noise operation. The gear set undergoes precision grinding and heat treatment to ensure high torque transmission, low backlash, and long-term durability. For heavy-load models, tapered roller bearings or thrust self-aligning roller bearings are used to handle both thrust and radial loads, ensuring stability during high-speed operation.

Anti-Rotation Guide Mechanism: Built into the ball nut, this guide minimizes screw drift during linear motion, ensuring stable and precise positioning. It prevents the screw from rotating along with the nut, maintaining consistent linear motion even at maximum speed, which is critical for high-precision applications such as automated testing and positioning systems.

Sealing & Lubrication System: Multi-layer labyrinth seals and high-temperature oil seals prevent dust, moisture, and contaminants from entering internal components, ensuring reliable performance in harsh environments. The gear section uses oil bath lubrication for durability during high-speed operation, while the screw section uses grease lubrication for easy maintenance. The pre-filled lifetime lubrication eliminates the need for frequent lubrication checks.

Lightweight & Rigid Housing: Manufactured from die-cast aluminum (light-load models) or ductile cast iron/cast steel (heavy-load models), the housing features integral rib reinforcement to improve structural rigidity and shock resistance. The compact design reduces dead space, allowing for lower overall equipment height and more room for lifting strokes.

1. Electric Motor Drive (Most Common)

Structure: Directly connected to an AC servo motor, stepper motor, or three-phase asynchronous motor, integrated with the gearbox for seamless power transmission. Optional brake motors are available to compensate for the lack of inherent self-locking in ball screw jacks, ensuring load stability during power outages or emergency shutdowns.

Advantages: Enables automated control, precise speed and position regulation, and integration with PLC, CANopen, Modbus, or Profinet systems. Suitable for high-speed, high-frequency, and continuous operation scenarios, reducing manual labor and improving production efficiency. The servo motor variant provides higher positioning accuracy and dynamic response, ideal for precision automation lines.

Application Scenarios: Automated production lines, high-speed material handling, precision positioning systems, packaging machinery, and industrial lifting equipment that requires continuous, automated operation.

2. Handwheel Drive (Manual Operation)

Structure: Equipped with an ergonomic handwheel (foldable or detachable) connected to the worm shaft, allowing manual rotation to drive the ball screw and achieve linear motion. The handwheel lever leverages mechanical advantage to reduce manual force, making it easy to operate even for heavy loads.

Advantages: No external power supply required, suitable for power-free environments, temporary operations, or maintenance scenarios. Simple structure, low cost, and easy operation, requiring no professional training. Optional torque limit design prevents handwheel damage from excessive force.

Application Scenarios: Field maintenance, small-scale equipment adjustment, temporary lifting tasks, and scenarios where power supply is unavailable or unstable (e.g., outdoor operations, emergency maintenance).

3. Multi-Jack Synchronous Drive

Structure: Multiple high-speed ball screw jacks connected via synchronous shafts and bevel gearboxes, achieving uniform, synchronous linear motion. The drive can be powered by a single motor (for small to medium-scale systems) or multiple motors (for large-scale, heavy-load systems) to ensure consistent speed and position across all jacks.

Advantages: Eliminates the need for additional bevel gears, ensuring synchronous accuracy ≤0.1mm. Suitable for lifting or positioning large, uneven loads (e.g., large worktables, mold clamping equipment, conveyor systems) that require stable, uniform motion. The compact design allows for flexible configuration to match different equipment sizes.

Application Scenarios: Large-scale industrial presses, mold positioning systems, heavy-duty conveyor height adjustment, and multi-point synchronous lifting/positioning tasks in automotive, aerospace, and logistics industries.

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