WP Worm Gear Reducer (WPEA/WPES/WPEO/WPEX/WPEKA/WPEKS): Food-Grade Clean Integrated Type & High-Precision Stable Transmission, Leading Hygienic Industry Applications
I. Product Overview: Clean Integrated Configuration, Meeting Hygienic Environment Transmission Needs
Weigao’s WP Series Worm Gear Reducers, covering core food-grade clean integrated models WPEA, WPES, WPEO, WPEX, WPEKA and WPEKS, are high-reliability power transmission devices specially developed for hygienic industrial scenarios requiring clean protection, high-precision transmission, low noise operation and universal installation. Targeting the pain points of traditional heavy-duty and explosion-proof worm gear reducers such as poor cleanability, easy pollution, high noise and insufficient transmission stability in hygienic environments, this series integrates food-grade clean cabinet design, precision wear-resistant transmission technology, seamless sealing protection and efficient heat dissipation optimization. It realizes a perfect combination of hygienic safety guarantee, high-precision stable transmission, universal multi-attitude installation and low-noise operation, and can stably operate in complex working conditions involving clean requirements, frequent start-stop, continuous operation and temperature fluctuation. As a core transmission component for key hygienic environment equipment, this food-grade clean integrated WP series is widely applied in food processing, pharmaceutical production, beverage filling, cosmetic manufacturing and other industries, providing clean and reliable power support for global hygienic industrial production projects. The product has passed international certifications such as FDA food contact certification, ISO 9001 quality management system certification, and IP66 protection certification (customizable to IP67), and is trusted by more than 50 countries and regions for its excellent hygienic environment adaptation performance.
II. Core Advantages: Five Clean Transmission Strengths, Defining Hygienic Industry Standards
1. Food-Grade Clean Cabinet, Multi-Attitude Hygienic Installation
The series adopts a food-grade clean integrated cabinet structure optimized by finite element analysis, and the cabinet is made of 316L stainless steel (or food-grade cast iron with special anti-corrosion coating) with seamless welding technology and smooth surface polishing (surface roughness ≤Ra 0.8μm), which avoids dead corners where dirt and bacteria accumulate and is easy to clean and disinfect. The six core models cover diversified input-output attitudes to meet extreme hygienic environment equipment layout needs: WPEA (standard food-grade clean type), WPES (food-grade clean type with input shaft upward), WPEO (food-grade clean type with output shaft upward), WPEX (food-grade clean type with output shaft downward), WPEKA (food-grade clean type with input shaft downward), WPEKS (food-grade clean type with vertical input shaft). The cabinet is equipped with stainless steel clean mounting flanges and precision positioning holes on multiple sides, which can flexibly switch between horizontal, vertical, wall-mounted, ceiling-mounted and other installation modes. The installation positioning accuracy error is ≤0.1mm, and the mounting base is designed with anti-vibration and anti-slip gaskets made of food-grade rubber, which effectively ensures the stable and hygienic operation of the transmission system under frequent start-stop and vibration conditions.
2. Precision Wear-Resistant Transmission, High-Precision & Stable Operation
The series adopts precision food-grade worm gear transmission pair design, the worm is made of 1Cr18Ni9Ti stainless steel, processed by integral forging, quenching and tempering, and super-precision grinding, with surface hardness up to HRC 58-62 and tooth surface roughness ≤Ra 0.3μm. The worm gear is made of high-wear-resistant and food-compatible bronze (ZCuSn10Pb5) with precision tooth profile modification, and the meshing contact area reaches more than 95%, realizing uniform force transmission and high-precision operation. The worm shaft adopts large-diameter integral rigid design, and the bearing adopts high-precision deep groove ball bearings with double-sided sealing, which improves the shaft system stability by 40% compared with ordinary models. The transmission accuracy error is ≤0.15arcmin, and the transmission system can maintain stable accuracy under 2.5 times the rated torque impact, which can perfectly match the high-precision transmission needs of food processing, pharmaceutical production and other industries. The no-load operating noise is ≤52dB, and the load operating noise is ≤58dB (measured at 1m distance), ensuring ultra-quiet operation and avoiding interference with the hygienic production environment.
3. Integrated Clean Matching, Wide-Range Power Adaptation
The series supports integrated clean power source matching, and all models are equipped with standard food-grade motor flanges (compatible with IEC standards) that can be directly matched with 0.75-45kW food-grade three-phase asynchronous motors, variable frequency motors and servo motors. For special hygienic scenarios, it can be customized with reinforced clean flange structures and input/output shaft extension designs with food-grade protective sleeves to meet the matching needs of different power equipment. The flange and cabinet are integrally cast with coaxiality error ≤0.03mm, avoiding transmission efficiency loss caused by assembly errors. The junction box is integrated on the cabinet with a sealed design, which can directly connect the motor's circuit, simplifying the wiring process and avoiding potential pollution hazards caused by external wiring. This integrated clean matching design not only improves the product's versatility and hygienic safety in clean environments, but also reduces the user's equipment procurement cost and debugging cycle.
4. Seamless Sealing & Efficient Heat Dissipation, Harsh Hygienic Environment Adaptation
The sealing system adopts enhanced four-layer seamless protection design: outer layer stainless steel labyrinth seal + middle layer food-grade fluorine rubber double-lip oil seal + inner layer O-ring + bottom layer anti-dust and anti-water cover, with food-grade sealant at the cabinet joint, achieving IP66 protection level and customizable IP67 protection level for special harsh hygienic environments. It can effectively prevent the intrusion of water, cleaning agents, dust and other impurities in food processing, pharmaceutical production and other harsh hygienic environments, and avoid lubrication failure and product pollution caused by oil leakage. The cabinet is designed with integral heat dissipation fins, and the heat dissipation area is increased by 35% compared with ordinary models. It adopts optimized circulating lubrication, and the built-in high-precision oil filter ensures the cleanliness of lubricating oil. Using FDA-certified food-grade synthetic worm gear oil, the product can work normally in the operating temperature range of -25℃ to +110℃, adapting to temperature fluctuation environments such as food freezing and drying processes.
5. Easy Cleaning & Low Maintenance, Cost-Saving Hygienic Operation
The product adopts a fully closed and seamless structure with smooth surface, which can be directly cleaned with high-pressure water and chemical disinfectants without dead corners, meeting the strict cleaning requirements of hygienic industries. The key components of the product adopt high-wear-resistant, high-temperature resistant and corrosion-resistant food-grade materials, and the worm gear and worm undergo special anti-corrosion surface treatment to improve their adaptability to cleaning agents and temperature changes. The rated service life reaches more than 12 years under normal maintenance conditions, and the maintenance cycle is extended by 50% compared with ordinary models. The centralized food-grade oil filling port, large-diameter oil drain port and transparent oil level observation window facilitate daily lubrication management and maintenance operations. The overall maintenance cost is reduced by 30% compared with similar clean models, significantly saving the user's operation and maintenance costs.
III. Typical Application Fields: Focus on Hygienic Industry, Empowering Clean Production
With its exclusive food-grade clean protection, high-precision stable transmission, harsh hygienic environment adaptation and easy cleaning advantages, Weigao food-grade clean integrated WP Series Worm Gear Reducers have become the core transmission choice for hygienic environment industrial equipment, and their typical application fields include:
- Food Processing Industry: Beverage filling machine drives, dairy product mixing equipment transmission systems, adapting to clean environments, low noise and frequent start-stop requirements;
- Pharmaceutical Production Industry: Pharmaceutical powder mixing machine drives, medical injection filling line transmission systems, adapting to GMP clean room environments, high precision and corrosion resistance requirements;
- Cosmetic Manufacturing Industry: Cosmetic emulsion mixing equipment drives, facial mask packaging machine transmission systems, adapting to clean environments, low vibration and stable speed control requirements;
- Food Freezing & Drying Industry: Freeze-drying equipment conveyor drives, frozen food packaging line transmission systems, adapting to low temperature environments, clean requirements and continuous operation needs;
IV. Technical Parameters: Precise Matching, Meeting Diverse Needs
- Health Product Processing Industry: Health product granulating machine drives, nutritional supplement packaging line transmission systems, adapting to clean environments, low noise and high-precision transmission requirements;
| Item | Specification Range |
| 0.75kW - 45kW | 1.5kW - 75kW |
| 10 - 80 (Single-stage); 100 - 1200 (Customized Double-stage) | 10 - 80 (Single-stage); 100 - 1500 (Customized Double-stage) |
| 500N·m - 8000N·m (Graded by Model) | 800N·m - 12000N·m (Graded by Model) |
| 87% - 94% (Depending on Model and Reduction Ratio) | 85% - 93% (Depending on Model and Reduction Ratio) |
| ≤52dB - ≤58dB (Measured at 1m Distance) | ≤58dB - ≤65dB (Measured at 1m Distance) |
| Protection Level | IP66 (Customizable to IP67 for Special Environments), FDA Food Contact Certification |
| -25℃ - +110℃ | -30℃ - +120℃ |
| Horizontal-mounted, Vertical-mounted, Wall-mounted, Ceiling-mounted, WPEA (Standard Food-Grade Clean Type), WPES (Food-Grade Clean Type with Input Shaft Upward), WPEO (Food-Grade Clean Type with Output Shaft Upward), WPEX (Food-Grade Clean Type with Output Shaft Downward), WPEKA (Food-Grade Clean Type with Input Shaft Downward), WPEKS (Food-Grade Clean Type with Vertical Input Shaft) | Horizontal-mounted, Vertical-mounted, Wall-mounted, Ceiling-mounted, WPWK (Standard Heavy-Duty Universal Type), WPWKA (Heavy-Duty Universal Type with Input Shaft Downward), WPWKS (Heavy-Duty Universal Type with Input Shaft Upward), WPWKO (Heavy-Duty Universal Type with Output Shaft Upward), WPWKV (Heavy-Duty Universal Type with Input Shaft Vertical), WPWKT (Heavy-Duty Universal Type with Output Shaft Vertical) |
| Solid Shaft Output (Flat Key/Spline, Food-Grade Coating), Hollow Shaft Output (Locking Disk Connection, Clean Type), Precision Shaft Extension (For Servo Motor Matching) | Solid Shaft Output (Flat Key/Spline), Hollow Shaft Output (Locking Disk Connection), Reinforced Shaft Extension (For High-Power Motor Matching), Explosion-Proof Shaft Output (For Hazardous Environment) |
V. Installation and Maintenance: Scientific Operation, Maximizing Performance
During installation, select the corresponding model according to the equipment layout (input/output shaft attitude), clean level requirements and power matching needs. For clean room installation scenarios, ensure that the coaxiality error between the reducer and the power source is ≤0.1mm, and use stainless steel mounting brackets to fix firmly to avoid vibration during operation. Strictly follow the clean installation specifications to ensure that the installation process does not cause pollution to the production environment. Select the appropriate FDA-certified food-grade lubricating oil according to the working conditions: use 220# food-grade synthetic worm gear oil for normal temperature and general load, and 320# food-grade high-temperature resistant synthetic worm gear oil for high temperature and continuous operation. 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 5000 hours thereafter, including checking worm gear meshing status, bearing temperature, fastener tightness and surface cleanliness. If abnormal phenomena such as excessive noise, vibration, oil leakage or overheating occur during operation, stop the machine immediately for inspection and troubleshooting, and clean and disinfect the equipment before restarting.
VI. Conclusion: Hygienic Industry Transmission Leader, Empowering Clean Production Upgrade
Adhering to the design philosophy of "Food-Grade Clean, High-Precision Transmission, Low-Noise Operation and Hygienic Adaptation", Weigao food-grade clean integrated WP Series Worm Gear Reducers (WPEA/WPES/WPEO/WPEX/WPEKA/WPEKS) focus on the core transmission needs of hygienic environment industrial equipment, integrating multiple exclusive technologies such as food-grade clean cabinet design, precision wear-resistant transmission and seamless sealing protection. It breaks through the performance limitations of traditional heavy-duty and explosion-proof worm gear reducers in hygienic industrial multi-scenario applications, providing clean, stable and reliable power transmission solutions for food processing, pharmaceutical production, beverage filling and other key industries. We will continue to rely on advanced clean transmission technology, deeply explore the personalized needs of different hygienic industrial scenarios, provide customized product solutions and global after-sales service support, and work with customers to promote the upgrade of hygienic industrial production technology. All models of this food-grade clean integrated WP series have passed strict international certifications, fully complying with the technical standards and safety requirements of global hygienic industrial fields, and are committed to becoming a trusted partner in the global hygienic environment transmission field.
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