Mechanical Spare Parts
In the long-term operation of cement plants, mining equipment and other heavy-duty industrial machinery, high-quality mechanical spare parts play a critical role in ensuring stable, safe and efficient performance. We specialize in providing high-precision and highly reliable mechanical spare parts solutions for rotary kilns, ball mills, roller presses, clinker coolers and various transmission systems. With strong casting and machining capabilities, strict quality control and rich export experience, we supply both OEM and customized spare parts to help equipment operate reliably under harsh working conditions.
The support roller assembly is used to support the shell weight of rotary kilns or rotary dryers and ensure stable rotation. It consists of rollers, bearings, bearing housings and base frames. High precision manufacturing helps reduce running resistance and extend equipment service life.
The support roller is a key load-bearing component of rotary kilns and rotary mills, used to directly support the shell and carry heavy radial loads. It is usually made of high-quality alloy steel or cast steel and heat-treated to ensure wear resistance and long-term stability.
The hydraulic thrust roller is used to control the axial movement of the rotary kiln shell and protect the support roller system. With hydraulic adjustment, it helps keep the kiln running in the correct position and improves operational safety.
The kiln tyre, also known as the riding ring, is installed on the shell of rotary kilns or mills to transfer the load to the support rollers. It is a large cast or forged steel component with very high requirements for material quality and machining accuracy.
The girth gear is the main driving component of rotary kilns and ball mills, working with the pinion to drive the equipment under heavy load at low speed. It is usually made of high-quality cast steel or forged steel with precise machining.
The kiln sealing device is used to seal the inlet and outlet of rotary kilns or dryers to prevent air leakage and dust escape. Good sealing performance helps improve thermal efficiency and working environment.
OEM & Customized Mechanical Spare Parts Service
Reliable Custom Spare Parts Solutions for Heavy-Duty Industrial Equipment
In cement plants, mining projects and other heavy-duty industrial applications, many critical spare parts are not standard products, but custom-designed components according to specific equipment models and working conditions. We not only supply standard mechanical spare parts, but also specialize in providing OEM and customized spare parts solutions for rotary kilns, ball mills, roller presses, clinker coolers and various transmission systems.
Whether your original spare parts are discontinued, have extremely long delivery time, or need structural optimization to improve service life, we can manufacture fully compatible replacement parts or upgraded solutions according to your drawing, sample or technical requirements.
What Types of Spare Parts Can We Customize?
Our customized service covers a wide range of heavy-duty mechanical components, including but not limited to:
Large cast steel and forged steel parts (such as kiln tyres, support rollers, girth gears, mill trunnions, etc.)
Key structural parts for rotary equipment and grinding equipment
Components working under heavy load, high temperature and severe wear conditions
OEM replacement parts and non-standard structural parts
Customization is not limited to dimension matching only. We can also provide material upgrading, structural optimization and service life improvement solutions based on your actual working conditions.
Strong Manufacturing Capability Behind Every Custom Product
Our customization service is supported by a complete manufacturing and quality control system, including:
Casting and forging capability
Heavy-duty CNC machining
Heat treatment and surface strengthening processes
Complete dimensional inspection and quality control procedures
This allows us not only to “manufacture” parts, but to deliver stable, reliable and long-term quality solutions for industrial customers.
Customized Spare Parts Working Process
Step 1: Requirement Confirmation
Customers can provide information in the following ways:
Technical drawing
Existing sample part
Equipment model and working condition description
Our engineers will conduct a preliminary technical evaluation on structure, working condition and material requirements.
Step 2: Technical Analysis & Solution Proposal
We will carry out:
Manufacturability analysis
Material selection recommendation
Working condition and performance evaluation
If necessary, we will propose optimized solutions to improve service life or reliability.
Step 3: Quotation & Technical Confirmation
After the technical solution is confirmed, we will provide:
Clear technical specifications
Commercial quotation
Delivery time schedule
Step 4: Manufacturing & Quality Control
The production process includes:
Raw material inspection
Casting / forging / machining
Heat treatment
Dimensional inspection and performance testing
Inspection reports or third-party inspection can be provided for critical components if required.
Step 5: Packing & Delivery
According to product size and transportation method, we use:
Wooden case packing
Steel frame reinforcement
Anti-rust and moisture-proof protection
To ensure the products arrive safely and in good condition at the customer’s site.
Why Choose Our Customized Spare Parts Service?
Deep understanding of cement and mining equipment working conditions
Rich experience in manufacturing large and heavy components
Ability to produce OEM replacement parts and upgraded parts
Stable quality, controllable delivery time
Exported to many countries and regions worldwide
No Drawing? No Problem.
Even if you:
Do not have drawings
Only have old or worn parts
Or only know the equipment model
We can still provide solutions through reverse engineering and professional technical analysis.
No problem. You can send us the old part or tell us the equipment model and application. Our engineers will analyze and redesign the part based on actual working conditions.
We can use carbon steel, alloy steel, cast steel, forged steel, high manganese steel, high chromium cast iron and other special materials according to different working conditions.
We apply strict quality control throughout the whole process, including raw material inspection, chemical composition testing, heat treatment control, machining inspection and final dimensional checking. Inspection reports can be provided if required.
Yes. Besides simple replacement, we can also provide material upgrades, structural optimization and wear-resistant solutions to extend service life and reduce maintenance cost.
We mainly serve cement plants, mining plants, crushing plants, lime plants and other heavy industrial projects.








