Rotary Cooler Services

OP Engineering Group is a leading Indian manufacturer and supplier of high-performance Rotary Coolers, Rotary Kilns, and industrial spare parts for cement plants, sponge iron (DRI), steel, chemical, and mineral processing industries. Known for precision engineering, durability, and innovation, OP Engineering Group delivers cost-effective and reliable solutions tailored to modern industrial requirements.

With a strong focus on quality manufacturing, advanced technology, and customer satisfaction, we provide complete rotary cooler systems along with all critical spare parts, ensuring smooth plant operation and long service life.

A rotary cooler plays a critical role in industrial processes by reducing the temperature of hot materials coming from rotary kilns, ensuring safe handling and improved process efficiency.

A Rotary Cooler is a large rotating cylindrical equipment used to cool high-temperature materials. It operates by rotating slowly while allowing heat exchange through air or water, which gradually reduces the temperature of the material.

This process ensures uniform cooling, improves product quality, and protects downstream equipment from heat damage. Rotary coolers are widely used in industries where continuous cooling is essential for production efficiency.

OP Engineering Group manufactures rotary coolers in a wide range of capacities and technical configurations:

• Capacity: 50 TPD to 900 TPD
• Cooling Type: Direct / Indirect Cooling System
• Material Grade: High-strength alloy steel & heat-resistant materials
• Drive System: Girth Gear & Pinion
• Design Standards: As per client drawings (LURGI, IPS, MEC, etc.)
• Customization: Fully customized as per plant requirements

Our coolers are designed for continuous industrial operation under extreme temperature conditions.

Our rotary coolers are widely used across multiple industries:

• Sponge Iron (DRI) Plants
• Cement Plants (Clinker Cooling)
• Steel & Metallurgical Industries
• Chemical Processing Plants
• Activated Carbon Plants
• Fertilizer Plants
• Mineral Processing Industries

They are used to cool materials such as clinker, sponge iron, lime, and other high-temperature processed materials.

OP Engineering Group is also a leading manufacturer and supplier of Rotary Cooler Girth Gears used in cooler drive systems.

Importance of Girth Gear

The girth gear is a critical component mounted on the cooler shell. It enables smooth rotation of the cooler by transmitting motion from the drive system. It is designed to handle heavy loads, high torque, and continuous operation.

• Module: As per client specifications
• Number of Teeth: Customized design
• Material Grade: IS 2708 Grade 2/3, IS 2644 CS 700, GS34CrMo4
• Design Compatibility: LURGI, POPURI, IPS, MEC, ITC, etc.

We provide a complete range of rotary cooler spare parts:

Major Components

• Cooler Shell
• Girth Gear
• Pinion Gear (Helical / Spur)
• Support Roller
• Thrust Roller Assembly
• Bearing Housing / Plummer Block
• Cooler Tyre (Riding Ring)
• Seal System
• Drive System (Motor & Gearbox)
• Base Frame & Structural Parts
• Labyrinth Rings (Bearing Sleeves)
• Spring Plates, End Covers, End Plates
• Nut Bolts & Washery Pins

All components are manufactured with high precision and strict quality control.

At OP Engineering Group, we follow a modern and systematic manufacturing process:

Design & Engineering

Customized design based on application and client requirements.

Casting Simulation

Advanced simulation tools are used to ensure defect-free casting.

Casting Process

High-quality sand casting method is used for strength and accuracy.

Blanking & Gear Cutting

Processes such as hobbing, milling, shaping, and broaching are used.

Heat Treatment

Carburizing, quenching, tempering, and annealing improve durability.

Gear Machining & Finishing

Precision machining ensures accurate tooth profile and smooth operation.

Quality Testing & Inspection

Strict checks for dimensional accuracy, hardness, and performance.

Packaging & Delivery

Heavy-duty packaging ensures safe transport to site.

• High cooling efficiency
• Heavy-duty design for high-temperature applications
• Smooth and stable rotation
• Long operational life
• Low maintenance requirement
• Precision-engineered components
• Reliable performance in continuous operations

OP Engineering Group supplies rotary coolers across India including Maharashtra, Gujarat, Karnataka, Tamil Nadu, Odisha, Jharkhand, Chhattisgarh, West Bengal, Telangana, Haryana, and more.

We also have a strong global presence and have successfully supplied materials to multiple international markets including Uganda, Kenya, Ghana, South Africa, Brazil, European Union (EU), Thailand, United States, Mexico, Australia, Guatemala, Philippines, Indonesia, Cuba, Argentina, Myanmar, Bangladesh, New Zealand, Paraguay, Uruguay, and other regions worldwide.

• Complete Solution – Rotary Cooler + Girth Gear + Spare Parts
• Custom Manufacturing as per client requirements
• Advanced Manufacturing Process
• High-Quality Raw Materials
• Competitive Pricing
• Timely Delivery & Strong Logistics
• Experienced Engineers & Technical Support

OP Engineering Group is a reliable manufacturer and supplier of Rotary Coolers and industrial cooling systems. With a strong focus on quality, innovation, and customer satisfaction, we deliver solutions that ensure high efficiency, durability, and consistent performance.

Whether you require a complete rotary cooler system or high-quality spare parts, OP Engineering Group provides trusted solutions that enhance productivity and support industrial growth.