WP worm gear reducer(WPA,WPS,WPX,WPO,WPDA,WPDS)

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The WP Worm Gear Reducer series, including models WPA, WPS, WPX, WPO, WPDA, and WPDS, represents a versatile and reliable range of mechanical power transmission solutions. These reducers utilize a worm-and-worm-wheel gearing system, offering smooth, quiet operation with high reduction ratios in a compact form factor. Designed for durability, they feature robust housing and precision-engineered gears that can handle substantial radial and axial loads, making them suitable for demanding industrial environments. The series provides flexibility with various mounting options and output configurations to accommodate diverse application needs. Additionally, their self-locking feature enhances safety by preventing reverse rotation, ideal for applications requiring precise positioning or load holding. Built with high-quality materials and subjected to rigorous quality control, the WP series ensures long service life, minimal maintenance, and consistent performance across industries such as conveying, lifting, and material processing.

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WP series

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WP Worm Gear Reducer (WPA/WPS/WPX/WPO/WPDA/WPDS): Multi-Attitude Installation & All-Condition Stability, Leading General Industrial Transmission

I. Product Overview: Axis-Attitude Graded Configuration, Meeting General Industrial Transmission Needs

Weigao’s WP Series Worm Gear Reducers, covering core models WPA, WPS, WPX, WPO, WPDA and WPDS, are high-reliability power transmission devices specially developed for general industrial scenarios requiring multi-attitude installation, stable speed reduction, reliable self-locking and long-term continuous operation. Targeting the pain points of traditional worm gear reducers such as single installation mode, poor adaptability to complex layout, unstable operation under variable load and difficult motor matching in general industrial applications, this series integrates optimized worm gear meshing technology, multi-attitude integral box design, motor flange integrated connection and efficient sealing lubrication technology. It realizes a perfect combination of diversified installation adaptation, stable speed reduction transmission, reliable self-locking protection and easy motor matching, and can stably operate in complex working conditions involving variable load, intermittent start-stop, multi-angle layout and general harsh workshop environment. As a core transmission component for key equipment in general industrial fields, the WP series is widely applied in chemical machinery, food packaging, printing and dyeing equipment, engineering machinery auxiliary systems and other industries, providing cost-effective and reliable power support for global general industrial production projects. The product has passed international certifications such as ISO 9001 quality management system certification, CE certification and IP65 protection certification, and is trusted by more than 50 countries and regions for its excellent general-purpose transmission performance.

II. Core Advantages: Five General-Purpose Transmission Strengths, Defining Industrial Universal Standards

1. Multi-Attitude Integral Design, Flexible Layout Adaptation

The series adopts integral box structure with optimized topology design, and covers six core models with different input and output shaft attitudes to meet diversified layout needs: WPA (input shaft downward), WPS (input shaft upward), WPX (output shaft downward), WPO (output shaft upward), WPDA (with motor flange, input shaft downward), WPDS (with motor flange, input shaft upward) . The box body is made of high-quality cast iron (HT250) with uniform wall thickness, which ensures structural rigidity while reducing overall weight. The multi-directional mounting hole design on the box body enables flexible switching between vertical and horizontal installation modes, and can be directly adapted to the layout requirements of different industrial equipment without additional adapter brackets. This multi-attitude design reduces the difficulty of equipment layout and installation, and improves the overall space utilization rate by 25% compared with traditional single-attitude reducers.

2. Optimized Worm Gear Meshing, Stable and Efficient Transmission

Adopting optimized tooth profile worm and worm gear with high-precision meshing parameter matching, the meshing accuracy reaches GB/T 10095.2 Class 6 standard. The worm is made of 40Cr alloy steel, processed by quenching and tempering, precision turning and grinding, with surface hardness up to HRC 55-58 and tooth surface roughness ≤Ra 0.8μm. The worm gear is made of wear-resistant tin bronze (ZCuSn10Pb1), processed by precision hobbing and finishing. The "line contact" meshing mode ensures stable force transmission, reduces transmission vibration amplitude to ≤0.15mm/s, and the transmission efficiency reaches 82%-90% (depending on the model and reduction ratio). The single-stage reduction ratio ranges from 10-60, and the double-stage reduction ratio can be customized up to 900 , which can precisely match the speed reduction needs of different general industrial equipment.

3. Integrated Motor Flange, Convenient Matching Connection

The WPDA and WPDS models in the series are equipped with integrated motor flanges, which can be directly connected with standard three-phase asynchronous motors (0.55-37kW) without additional coupling components, reducing installation errors and improving transmission coaxiality. The flange size adopts international standard design, which is compatible with motors of various brands, realizing rapid matching and replacement. For WPA, WPS, WPX and WPO models without integrated flanges, standard input shaft extension design is adopted, which can be flexibly matched with motors, reducers and other power sources through couplings. This diversified matching design improves the universality of the product and reduces the overall procurement and assembly costs of users.

4. Reliable Self-Locking Protection, Safe Operation Guarantee

Based on the optimized worm helix angle design (helix angle ≤5°) and high-friction coefficient material matching, the entire WP series realizes reliable self-locking performance when the worm is used as the driving end, with a self-locking safety factor ≥1.2. It can effectively prevent reverse rotation of the load and position drift in vertical lifting, inclined conveying and other scenarios, avoiding equipment damage and production accidents caused by accidental reverse rotation . The self-locking performance is stable and reliable in the entire service life cycle, without additional braking devices, simplifying the equipment structure and reducing maintenance costs.

5. Efficient Sealing & Lubrication, Long Service Life

The sealing system adopts double-lip oil seal + O-ring combined design, with reinforced sealant at the box joint, achieving IP65 protection level. It can effectively prevent the intrusion of dust, water vapor, cutting fluid and other impurities in the workshop environment, and avoid lubrication failure caused by oil leakage. The product adopts forced splash lubrication, and the optimized internal oil circuit ensures sufficient lubrication of all transmission components. The centralized oil filling port and oil drainage port facilitate daily lubrication management, and the transparent oil level observation window enables real-time monitoring of oil level status. Using 220#/320# special synthetic worm gear oil, the product can work normally in the operating temperature range of -10℃ to +120℃, and the rated service life reaches more than 15 years under normal maintenance and operation conditions.

III. Typical Application Fields: Focus on General Industry, Empowering Diversified Production

With its exclusive multi-attitude installation, stable efficient transmission, convenient motor matching and reliable self-locking performance, Weigao WP Series Worm Gear Reducers have become the core transmission choice for general industrial equipment, and their typical application fields include:

Chemical Machinery: Chemical reactor auxiliary transmission systems, corrosive medium conveying pump drives, adapting to general corrosive environment, continuous operation and variable load working conditions;
Food & Packaging Industry: Food processing line conveyors, automatic packaging machine rotating mechanisms, adapting to clean environment, low noise and intermittent start-stop working conditions;
Printing & Dyeing Equipment: Printing machine color register mechanisms, dyeing machine cloth feeding drives, adapting to high-precision speed control, multi-angle layout and humid environment;
Engineering Machinery Auxiliary Systems: Small crane lifting mechanisms, forklift steering auxiliary drives, adapting to outdoor harsh environment, impact load and reliable self-locking requirements;
Water Treatment Equipment: Sewage treatment aerator drives, water supply pump transmission systems, adapting to long-term continuous operation, humid environment and variable load working conditions;

IV. Technical Parameters: Precise Matching, Meeting Diverse Needs

Item	Specification Range
Motor Power Adaptation	0.55kW - 37kW
Reduction Ratio	10 - 60 (Single-stage); 200 - 900 (Customized Double-stage)
Rated Output Torque	300N·m - 5000N·m (Graded by Model)
Transmission Efficiency	82% - 90% (Depending on Model and Reduction Ratio)
Operating Noise	≤58dB - ≤65dB (Measured at 1m Distance)
Protection Level	IP65 (Customizable to IP67 for Special Environments)
Operating Temperature	-10℃ - +120℃
Installation Method	Vertical-mounted, Horizontal-mounted, WPA (Input Shaft Downward), WPS (Input Shaft Upward), WPX (Output Shaft Downward), WPO (Output Shaft Upward), WPDA/WPDS (With Motor Flange)
Output Shaft Type	Solid Shaft (Flat Key/Spline), Hollow Shaft (Locking Disk Connection), Standard Input Shaft Extension (For Non-Flange Models)

V. Installation and Maintenance: Scientific Operation, Maximizing Performance

During installation, select the corresponding model according to the equipment layout (input/output shaft attitude) to ensure installation accuracy. For WPDA/WPDS models with integrated motor flanges, ensure that the motor mounting surface is closely attached to the flange without gaps to avoid vibration during operation. For non-flange models, ensure that the coaxiality error between the reducer and the motor (or other power sources) is ≤0.1mm. Select the appropriate lubricating oil according to the working conditions: use 220# special synthetic worm gear oil for normal temperature and general load, and 320# high-temperature resistant synthetic worm gear oil for high temperature and heavy load. Regularly check the oil level, oil quality and sealing performance; replace the lubricating oil after the first 2000 hours of operation, and perform comprehensive maintenance every 6000 hours thereafter, including checking worm gear meshing status, bearing temperature and fastener tightness. If abnormal phenomena such as excessive noise, vibration, oil leakage or overheating occur during operation, stop the machine immediately for inspection and troubleshooting.

VI. Conclusion: General Industrial Transmission Leader, Empowering Diversified Production Upgrade

Adhering to the design philosophy of "Multi-Attitude Adaptation, Stable Transmission, Convenient Matching and Safe Reliability", Weigao WP Series Worm Gear Reducers (WPA/WPS/WPX/WPO/WPDA/WPDS) focus on the core transmission needs of general industrial equipment, integrating multiple exclusive technologies such as multi-attitude integral design, optimized worm gear meshing and integrated motor flange connection. It breaks through the performance limitations of traditional worm gear reducers in general industrial multi-scenario applications, providing cost-effective, stable and reliable power transmission solutions for chemical machinery, food packaging, printing and dyeing equipment, engineering machinery auxiliary systems and other key industries. We will continue to rely on advanced general-purpose transmission technology, deeply explore the personalized needs of different general industrial scenarios, provide customized product solutions and global after-sales service support, and work with customers to promote the upgrade of general industrial production technology. All models of the WP series have passed strict international certifications, fully complying with the technical standards and safety requirements of global general industrial fields, and are committed to becoming a trusted partner in the global general industrial transmission field.

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