GUOMAO QY Type Cranes And Hoists Gear Reducer

The GUOMAO QY Type Gear Reducer is a professional heavy-duty hard-tooth surface reducer specially developed for crane and hoist working conditions. Tailored to the industry characteristics of frequent start-stop, alternating impact load, forward and reverse operation, and long-cycle heavy-load hoisting, this series adopts high-strength alloy steel gear components and stress-relief welded box structure. With super-large torque output, ultra-wide power and speed ratio range, high safety factor, strong impact resistance and stable continuous operation, it solves the common pain points of traditional crane reducers such as insufficient load capacity, easy gear damage and poor safety performance. It is a dedicated core transmission component for lifting machinery and a high-quality import substitution product for port, metallurgy, engineering and heavy industrial hoisting equipment.

1. Core Technical Parameters

Power (kW): 9.5–1750kW
Speed Ratio: 16–400
Max. Output Torque: 355 kN·m

2. Product Features & Core Advantages

2.1 Ultra-Wide Power & Speed Ratio Coverage, Full-Condition Matching

Covering a wide power range of 9.5kW to 1750kW and a super-wide speed ratio of 16–400, the QY series fully adapts to all types of light, medium and heavy hoisting equipment. It supports flexible switching between high-speed walking, luffing operation and low-speed heavy-load lifting, meeting the diversified speed and power demand of crane running, lifting and slewing mechanisms. With strong parameter compatibility, it realizes one machine for multiple purposes, avoiding repeated model selection and reducing equipment matching costs.

2.2 355kN·m Super Large Torque, Excellent Heavy-Load & Impact Resistance

With a maximum output torque up to 355kN·m, this reducer owns ultra-strong heavy-load bearing capacity and sufficient power reserve. The core gears adopt carburizing, quenching and precision grinding processes, with high surface hardness and structural rigidity. It can stably withstand instantaneous impact load and alternating load generated by frequent start-stop, forward-reverse rotation and heavy-load lifting of cranes, effectively preventing tooth breakage, slipping and power attenuation, ensuring stable and reliable power output under full-load extreme working conditions.

2.3 Industrial-Grade Structural Stability & High Operational Safety

The box body adopts high-quality steel welding structure and professional annealing stress relief treatment, which completely eliminates internal structural stress and effectively avoids box deformation, oil leakage and loose parts caused by long-term heavy vibration. It supports stable bidirectional forward and reverse operation, perfectly matching the cyclic lifting and lowering actions of hoisting equipment. Equipped with a scientific anti-slip transmission design, it greatly improves the safety factor of hoisting operation and eliminates hidden dangers of heavy-load slipping.

2.4 High Transmission Efficiency, Low Vibration & Low Noise

Adopting precision gear modification and multi-tooth meshing optimization technology, the gear meshing accuracy is greatly improved. The series features high transmission efficiency with low power loss, stable operation, effectively reducing vibration and running noise during high-frequency cyclic operation. It supports 24-hour uninterrupted heavy-duty work, with strong operational fatigue resistance, fully meeting the long-term continuous operation requirements of heavy industrial lifting sites.

2.5 Super Harsh Environment Adaptability & Long Service Life

Designed for outdoor and heavy industrial harsh working conditions, the whole machine has excellent dust-proof, moisture-proof, corrosion-resistant and high-low temperature resistance. It can operate stably for a long time in open-air ports, dusty mines, high-temperature metallurgical workshops and other complex environments. The wear-resistant and anti-fatigue core components greatly extend the service life, far exceeding ordinary general-purpose reducers.

2.6 Flexible Installation & Low Maintenance Cost

Support various installation methods such as foot mounting and flange mounting, compatible with gantry cranes, overhead cranes and various hoist equipment structures. The standardized modular structure is convenient for disassembly, inspection and daily maintenance, effectively reducing equipment downtime and later operation and maintenance costs, adapting to high-intensity industrial production rhythm.

3. Main Application Scenarios

Benefiting from the core strengths of super large torque, high safety stability, wide parameter coverage and harsh environment resistance, GUOMAO QY crane dedicated reducers are widely used in all kinds of heavy-duty hoisting and industrial transmission fields:

3.1 Engineering & Construction Lifting Equipment: Tower cranes, overhead cranes, gantry cranes, electric hoists, construction lifting winches, used for crane lifting, walking and luffing transmission mechanisms.

3.2 Port & Terminal Heavy Machinery: Portal cranes, container handling equipment, yard stacking machinery, port heavy-load conveying and lifting equipment, adapting to high-frequency and long-cycle heavy-duty operation.

3.3 Mining & Metallurgical Industry: Mine lifting equipment, metallurgical workshop heavy-duty cranes, high-temperature resistant handling machinery, suitable for dusty, high-load and high-temperature harsh working conditions.

3.4 Heavy Industrial General Transmission: Large factory lifting equipment, material handling machinery, heavy-duty conveying and turning equipment, providing stable and safe power support for various heavy industrial mechanical systems.

4. Product Core Value

As a special professional heavy-duty reducer for lifting machinery of GUOMAO, the QY series abandons general-purpose design and is fully optimized for crane heavy-load safety operation. It integrates ultra-large torque, high safety factor, strong environmental adaptability and low comprehensive cost. With mature industrial manufacturing technology and complete after-sales service system, it is the most reliable cost-effective import substitution solution for heavy-duty hoisting equipment transmission systems.