Heavy Duty Rotary Kiln Pinion Gear Shaft | Forged Helical Drive Shaft for Industrial Mills
Product Description
Ensure the continuous, high-torque operation of your massive rotary equipment with Yile Machinery’s Forged Pinion Gear Shafts. As the critical driving component that meshes with the large girth gear, our pinion shafts are engineered to withstand extreme stress, heavy loads, and continuous vibration in Cement Rotary Kilns, Ball Mills, and Sugar Diffusers.
Unlike standard cast parts, our Rotary Kiln Pinion Shafts are manufactured using a high-integrity forging process. This ensures a denser internal structure free from defects, providing the superior fatigue strength required for heavy industrial transmission systems. We offer both integral pinion shafts (shaft and gear as one piece) and mounted pinion assemblies customized to your specific module and helix angle.
Key Features & Advantages
Superior Forged Quality: We utilize high-strength Forged Alloy Steel (such as 42CrMo, 18CrNiMo7-6) rather than casting. This significantly improves impact toughness and reduces the risk of shaft breakage under load.
Precision Gear Machining: Our facility is equipped with advanced CNC Gear Hobbing and Grinding machines. We achieve precision grades of ISO 6-8, ensuring a perfect contact pattern with the girth gear to minimize noise and wear.
Advanced Heat Treatment: To extend service life, our shafts undergo Carburizing and Quenching or Through-Hardening. This results in a wear-resistant tooth surface (HRC 58-62) while maintaining a ductile core to absorb shock.
Custom Helical & Spur Designs: Whether you need a Double Helical (Herringbone) gear for a ball mill or a standard Helical Pinion for a kiln, we manufacture strictly according to your OEM drawings.
Total Quality Assurance: Every shaft is subjected to 100% Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) to ensure zero internal or surface defects.
Technical Specifications
Specification | Details |
Product Name | Rotary Kiln Pinion Shaft / Mill Pinion Gear / Driving Shaft |
Material Grades | Forged Steel: 42CrMo4, 34CrNiMo6, 17CrNiMo6, AISI 4140, AISI 4340 |
Module Range | Module 10mm – Module 50mm |
Gear Type | Helical, Spur, or Double Helical (Herringbone) |
Max Dimensions | Diameter: up to 1,500mm |
Surface Hardness | HRC 55-62 (Carburized) or HB 280-320 (Quenched & Tempered) |
Manufacturing Standard | ISO, DIN, AGMA, ASTM |
Certification | ISO 9001:2015 |
Industrial Applications
Our Heavy Duty Pinion Shafts are the heartbeat of drive systems in:
Cement Industry: Main drive for Rotary Kilns, Raw Mills, and Clinker Coolers.
Mining & Mineral Processing: Transmission for SAG Mills, Ball Mills, and Rod Mills.
Sugar & Paper: Drive shafts for heavy rollers and diffusers.
Power Generation: Coal mill transmission.
Why Choose Yile Machinery?
One-Stop Manufacturing: From raw material forging to final gear grinding and assembly.
Reverse Engineering: If you don't have drawings for your old equipment, we can survey and map your existing worn shaft to manufacture a replacement.
Assembly Service: We can deliver the pinion shaft pre-assembled with bearing housings and spherical roller bearings for plug-and-play installation.
Request a Quote for Pinion Shafts – Send us your drawings today for a competitive factory-direct price.