WangLi custom large ring gear grinding mill rotary kiln casting large rotating gear ring ball mill ring gear

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Product Overview


Why Choose Us

Luoyang Wangli Heavy Machinery Co.,Ltd is High-Tech Enterprise, Luoyang Large Mold Heat Treatment Engineering Technology Center.The company has obtained more than 30 national patents, and its main products include spare parts for construction machinery(pull-shovel, electric shovel, driving), cement machinery spare parts(kiln tyre, bearing, roller shaft, liner plate and so on), large modulus gear (shaft), hot forging die, large non-standard machinery products.

1. Over 30 years experiences in manufacturing precision large nonstandard heavy machinery spare parts.
2. Having five standardized workshops, which are hoisting hook 150 Tons.
3. Vertical well electric furnace heat treatment - Max. DIA is 6 meter, Max. Depth 9 meters.
4. Five senior engineers in forging/ heat treatment fields.
5. OEM & ODM can provided, specialized e-commerce and technical team can provide online service.

Products Description

Product Description
Product name: WangLi custom large ring gear grinding mill rotary kiln casting large rotating gear ring ball mill ring gear
We can produce large forging,casting and welding gears according to customer's drawings.According to the working conditions and clients' request,we also can do gear grinding,surface hardening,cemented and quenching,Nitriding and quenching,etc.

    We can manufacture different type of gears according to drawing

Carbon Steel , Alloy Steel
Forging , Casting and Welding
Module of Gear
Gear Grinding
MAX Module 24
Diameter of Gear Wheel :
MAX 13 000 mm
Diameter of Spiral Gear :
MAX . 2 200 mm
Length of Gear Shaft :
MAX 5 000 mm
OEM Service Offered
According to Customer Drawings
Segments Gear Offered :
According to Customer Requests
Heat Treatment
Q & T Case Hardening

Our custom large ring gear used for large cement plant equipment.Such as Rotary kiln,Ball Mill,Dryer,etc.Also we can produce other big forging or casting gear ring for steel plant,Dragline excavator. The can be a whole ring gear or segment gear wheel in half,four segments.eight segments.

Technology Process

Material is the skeleton for one machinery, while production design is the thought, NCN machining is the essence and heat treatment is the soul.

Electric Arc Furnace

It is easier and accuracy to control the inner temperature of furnace, so it can improve the purity of steel.
It can control the quality of steel from the material.
We can casting 1500-30000 kgs per piece.

Rough lathe machining of custom large ring gear, the diameter of segment ring gear is 2000-13000 MM. Our largest lathe diameter is 15 meters.

All our blank will do 100% Ultrasonic Flaw Detection

100% ultrasonic flaw detection of custom large ring gear

Coarse hobbing of the custom large ring gear
The Module of the large diameter ring gear is 8-55.

Magnetic powder inspection for the big casting segment ring gear for grinding mill rotary kiln

Quenching & Tempering of custom large ring gear

Coarse hobbing before the QT, which can make the good properties of the teeth.

Finished Hobbing for custom large ring gear

The Maximum precision grade is 8, the grinding precision grade is 6.

Related Products

We have different specifications of oil forging presses,ring rolling machines,electric arc furnaces,thus we can provide variety of forging,casting and welding materials according to customer's requests.

Advantage of our Heat Treatment:
- Professional, specific furnace, single-minded
- Vertical pit furnace,keep the temperature uniformity during heating,+/-1℃
- Small deformation,little oxide layer,reduce material cost
- Different materials can be cooled at the best speed
- Large capacity, completed variety of quenching medium: oil,water,salt water,water based mixture.


We have the completed machining equipment,including horizontal lathe,vertical lathe,CNC boring and milling machine,CNC boring machine,deep hole drilling and boring machine,gear hobbing machine, gear teeth grinding machine,grinding machine,etc.

Strictly quality inspection system can produce high quality products. Our quality certification system is ISO 9001:2015. For each order,we can provide report for material chemical components testing,UT testing,hardness,mechanical property testing(impact testing,yield strength testing,tensile strength testing),size inspection,etc.

In order to avoid the finish products rusted and damaged during the transportation ,we will design the right packing according to the shape,size and usage of the products.


We can provide technical support on new material,heat treatment and new manufacture process according customer’s working condition in order to improve lifespan of machinery parts.We have got a lot of patents on the spare parts of mill,cement rotary kiln,dragline excavator,rotor shafts.

Customer Visit

Our products have been exported to abroad for more than 10 years and 41 countries,such as

0.0116 s.