Guomao Reducer ZLY Series Hard Tooth Surface Cylindrical Gear Reducer Introduction
Guomao ZLY Series is a high-performance hard tooth surface cylindrical gear reducer, mainly designed for heavy-load and high-speed industrial transmission scenarios. Adopting multi-stage helical gear transmission structure, it integrates robust structural design and precision manufacturing technology, standing out in fields requiring stable torque output and long-term operation, providing reliable power support for large-scale industrial equipment.
In structural design, the ZLY Series features a one-piece cast iron housing made of HT200 high-strength material, processed by precision casting and aging treatment to eliminate internal stress. This ensures excellent rigidity, impact resistance and heat dissipation, effectively adapting to harsh working conditions with heavy load and vibration. The core gear system adopts 20CrMnTi alloy steel, undergoing gas carburizing, quenching and precision grinding processes, with tooth surface hardness reaching HRC58-62 and gear accuracy up to Class 5, realizing smooth meshing and low wear.
Performance-wise, the series excels in key indicators. Its per-stage transmission efficiency exceeds 96%, minimizing energy loss and improving overall equipment operation efficiency. It covers a wide parameter range: input power from 0.75kW to 160kW, maximum output torque up to 20000N.m, and transmission ratio from 8 to 400, which can be flexibly combined to meet extreme low-speed and high-torque requirements. Equipped with multi-layer sealing structure, it achieves IP54 protection level, effectively preventing oil leakage and impurity intrusion.
It supports flexible installation modes such as foot mounting and flange mounting, easily matching with three-phase asynchronous motors, frequency conversion motors and other power units. Widely applied in metallurgy, mining, building materials, transportation and chemical industries, it is suitable for conveyors, mixers, crushers and other heavy-duty equipment. Backed by strict factory testing, its main components have a service life of over 20000 hours, featuring easy maintenance and low operating cost, making it a cost-effective transmission solution.
Guomao ZLY‑Series Two‑Stage Cylindrical Speed Reducer Specifications
Note: Two‑stage hard‑tooth surface parallel shaft gear reducers (JB/T 8853‑2001), high load capacity, high efficiency (≥96%), standard ratios 6.3–20. Weights are for gear unit only (motor weight extra; compatible with IEC/NEMA/DIN frames, three‑phase induction, inverter‑duty, and explosion‑proof motors).
| Model | Approx. Weight | Motor Combination (Power Range) |
|---|---|---|
| ZLY112, ZLY125, ZLY140 | 120kg – 280kg | Three‑phase induction motors (7.5kW – 30kW); IE3/IE4 high‑efficiency, inverter‑duty; ratios 6.3–20 for light‑to‑medium conveyors, mixers, and small crushers |
| ZLY160, ZLY180, ZLY200 | 250kg – 500kg | 15kW – 55kW motors; ratios 6.3–20 for medium pumps, agitators, and general industrial drives |
| ZLY224, ZLY250, ZLY280 | 450kg – 900kg | 30kW – 90kW motors; ratios 6.3–20 for heavy conveyors, extruders, and medium mills |
| ZLY315, ZLY355, ZLY400 | 800kg – 1800kg | 55kW – 160kW motors; ratios 6.3–20 for large mixers, crushers, and metallurgical equipment |
| ZLY450, ZLY500, ZLY560 | 2200kg – 4500kg | 110kW – 315kW motors; ratios 6.3–20 for mining machinery, large mills, and heavy industrial drives |
| ZLY630, ZLY710 | 5000kg – 8000kg | 200kW – 560kW motors; ratios 6.3–20 for extra‑heavy‑duty rolling mills, large crushers, and high‑power process lines |
| ZLY‑EX160, ZLY‑EX200, ZLY‑EX250 | 300kg – 950kg | 18.5kW – 90kW explosion‑proof motors; Ex d IIB/IIC certified for hazardous zones (chemical, oil & gas) |
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