In what fields is NCZD315-900-1 planetary gear reducer used?

NCZD315-900-1 planetary gear reducer relies on the core advantages of ultra-large transmission ratio (900) and high torque carrying capacity. It is mainly used in heavy-duty industrial fields with extremely high demand for 'low speed and high torque'. It is especially suitable for large equipment that requires continuous heavy-load operation. It can be divided into 4 core application fields.

1. Mining and coal industry: suitable for heavy-duty conveying and crushing equipment

The mining industry has harsh working conditions and heavy loads, which place extremely high requirements on the impact resistance and torque output of the reducer. This model can accurately match two types of key equipment:

• Heavy-duty scraper conveyor/belt conveyor : In underground or surface coal and ore transportation scenarios, the equipment needs to drive long-distance, large-bandwidth conveyor belts (such as a bandwidth of more than 1.6m), and needs to cope with material impact loads. The ultra-large transmission ratio of the reducer can reduce the high speed of the motor to a low speed of about 1.67r/min, and at the same time output a torque of tens of thousands of N·m, meeting the needs of 'slow walking and steady pulling' of conveying equipment.

• Large crushing equipment (such as jaw crusher, cone crusher) : When crushing hard ore, the instantaneous impact load of the equipment is large, and the reducer needs to have strong overload resistance. This model's 315 machine base design (high rigidity casing) and planetary transmission structure (even load distribution) can effectively disperse impact loads, avoid tooth surface damage due to instantaneous overload, and are suitable for the intermittent heavy-load operation mode of crushing equipment.

2. Metallurgy and steel industry: driving high-temperature, high-load production equipment

Equipment in the metallurgical industry needs to operate continuously in high temperature and dusty environments, and has strict requirements on transmission accuracy and reliability. This model is mainly used in two types of core links:

• Ladle rotary table/continuous casting machine : The ladle rotary table needs to carry tens of tons of ladles (filled with molten steel) and achieve smooth rotation (the speed is usually 1-3r/min); the tension leveler of the continuous casting machine needs to drive the slab forward slowly to ensure the quality of the slab. The reducer's high torque output and low speed characteristics can accurately match the equipment's 'stable low speed and high load-bearing' requirements. At the same time, its sealed structure can resist high-temperature dust and avoid corrosion of internal components.

• Rolling mill auxiliary drive device : In hot rolling or cold rolling production lines, some auxiliary equipment (such as the guide rollers of the coiler and the pressing device of the rolling mill) need to be driven at low speeds and need to cope with the impact load during the steel rolling process. This model's single-stage transmission has high efficiency (96%-98%) and strong structural rigidity, which can reduce energy loss and at the same time withstand instantaneous overload during steel rolling, ensuring continuous operation of the production line.

3. Building materials and cement industry: suitable for large grinding and forming equipment

Large-scale equipment in the building materials industry (such as ball mills and rotary kilns) needs to operate at full load for a long time and has high requirements on the life and stability of the reducer. This model is mainly suitable for two types of key equipment:

• Large ball mill (raw material mill, cement mill) : The ball mill grinds materials through the rotation of the grinding body (steel ball). It needs to drive a grinding drum with a diameter of more than 3m to rotate slowly (the speed is usually 1-2r/min), and the load is constant and the duration is long. The ultra-large transmission ratio of the reducer can accurately match the rotation speed of the grinding barrel, and the high torque output can drive the grinding barrel and dozens of tons of steel balls and materials inside to run stably. At the same time, its wear-resistant design (such as reinforced planetary gear tooth surfaces) can adapt to long-term heavy-load conditions.

• Lime rotary kiln drive device : The rotary kiln needs to be placed tilted and rotate slowly (speed 1-3r/min). It is used to heat limestone to high temperature for calcination. The equipment itself is heavy (kiln body diameter 3-4m) and needs to cope with high temperature environments. The high-rigidity casing (315 base) of this model can withstand the radial load of the kiln body. At the same time, the sealing system can isolate the high temperature of the kiln body's heat dissipation, prevent the lubricating oil from deteriorating, and ensure the stability of the transmission system.