AGMA/ISO Standard Mill Ring Gears

AGMA/ISO Standard Mill Ring Gears — High-Performance Girth Gears for Mining Mills

The mill ring gear is the core transmission component of mining mills (ball mills, rod mills, tube mills, etc.), directly determining equipment operating stability and working efficiency. Our mill ring gears strictly follow AGMA and ISO international standards and are manufactured from high-strength alloy steels such as 42CrMo and 20CrNiMo through multiple precision processes — free forging, quenching and tempering heat treatment, tooth surface carburizing and quenching, and precision turning and grinding.

Core AdvantagesThe tooth surface hardness reaches HRC58-62 with excellent core toughness, providing super wear resistance, impact resistance, and fatigue resistance — easily handling the high-load, strong-vibration, dust-heavy conditions of mining mills. Relying on high-end equipment including CNC vertical lathes, gear hobbing machines, and coordinate measuring machines (CMM), tooth profile and tooth direction accuracy are precisely controlled, achieving transmission efficiency of over 98% with low operating noise and minimal energy loss.

Full-Spec CustomizationWe support full-spec custom services: according to the customer's mill model and working conditions, we custom-manufacture non-standard mill ring gears with module 8–50 and outer diameter 1000–8000 mm, providing a one-stop solution from drawing deepening, material selection, production processing, to installation and commissioning.

Quality & Track RecordEvery product undergoes multiple quality verifications — non-destructive testing (NDT), precision inspection, and fatigue testing — ensuring stable and reliable delivery quality. Our mill ring gears have been widely applied in large mining mill projects worldwide and fit mainstream mill brands. With internationally compliant quality, high adaptability, and comprehensive after-sales technical support, they have earned high recognition from customers at home and abroad. Contact us anytime for detailed parameters, custom solutions, or quotations.