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Quick Details

Applicable Industries:

Machinery Repair Shops, Farms


gear box


center pivot

Place of Origin:

Zhejiang, China

Brand Name:



NMRV Gear Box



Packaging & Delivery

Selling Units:
Single item
Single package size:
113X113X77 cm
Single gross weight:
909.000 kg
Package Type:
standard export packages or as your requirement
Lead Time
Quantity(Sets) 1 – 50 >50
Est. Time(days) 7 To be negotiated

Online Customization

NMRV Gear Box

Product Description

The gearbox we use:

a The worm consists of high strength forged steel with a Brinell hardness of 210 while the wrong gear is manufactured from ductile cast iron with a relatively wide variation of hardness. This is totally different from those made by grey pig iron.

b The worm and gear pressure angle are designed at 14-1/2 degrees. This angle was selected based on reviewing of extensive engineering information and has supported by extensive testing. It exceeds the necessary strength requirement which makes it in greater efficiency with large angle.

c The output shaft is in full 2-1/4” diameter. Although large shafts can be used, the actual strength is determined by the load applied and physical properties of the material, while our shaft material is high-strength, forged steel. The gearbox overhung load point is relative small at 1-1/2” from the bearing to the wheel mounting flange.

d The worm end caps made of cast iron are held by 4 bolts to reduce the possibility of working loose in the field – unlike some system just with a threaded nut.

Company Information

Rainfine irrigation company is a manufacturing company for center pivot and lateral move equipments in Dalian China. It is an international company cooperated with American companies and European manufacturers who are specialized in center pivot and lateral move system.

Rainfine has accessed to the most advanced technology in irrigation field and is professional for the irrigation project design, equipments supply and engineering based on center pivot, lateral move irrigation system. In addition, we have implemented ISO 9001-2008 system, as well as the advanced tooling and die system, which enhance our productivity and reduce the production costs. As a result, our center pivot system is reliable with high quality, excellent performance, high efficiency and simple operation.

Rainfine use America satellite global image data and software to create the topographic map for farmer’s land .This topographic map can be used to calculate the charge head of the pump station, the pipe pressure of the water transfer system according to the water requirements of center pivot or later move system. No matter you are in Australia, Africa, or South America, this technology can help you to make a trail study and help you to make a clear picture of the investment and the budget plan. All these done for farmers are free of charge!

Rainfine help farmers to design the pump station, pipeline and the irrigation system and make the feasibility studies. We choose farmers the good quality pump, pipe, valve, frequency convertor from all over the world.

Rainfine insists the aim of excellent customer service. We have set up a worldwide distribution net of dealers who are highly professional in marketing, installation & commissioning, maintenance and services. This has made it simpler to operate, more convenient to purchase for customers all over the world, and enable you to enjoy a faster and better service.

Rainfine’s work:

Rainfine’s mission:

1. Help investors to make profit from agriculture business.

2. Help farmers to increase yield from the land.

3. Save water resources from the earth

Rainfine main market:

China Chile Argentina Zambia Sudan Australia Kazakhstan Russia Nigeria Libya Saudi Arabic