Heavy-Duty Forged Roller Shafts for Rotary Kilns

Engineered for Maximum Reliability in Extreme Operating Conditions

A rotary kiln is the heart of a cement plant or mineral processing facility, and its support roller assemblies bear the entire, immense weight of the rotating drum. The shafts within these rollers are subjected to continuous high loads, thermal stress, and fatigue. A shaft failure is a catastrophic event, leading to millions in lost production and repair costs. For this critical application, only the highest quality components are acceptable.

Yile Machinery is an OEM manufacturer of heavy-duty, forged support roller shafts for rotary kilns and dryers. We engineer and manufacture these critical components to provide exceptional strength, fatigue resistance, and service life, ensuring the long-term reliability of your plant's most vital asset.

Key Features & Benefits:

• Superior Strength & Fatigue Life Through Forging: Our shafts are not machined from simple bar stock. They are forged from high-grade alloy steel billets, aligning the material's grain structure to the shaft's geometry. This process provides vastly superior resistance to bending stress and fatigue cracking compared to other manufacturing methods.

• High-Performance Alloy Steels: We utilize proven, robust materials like 42CrMo (AISI 4140) and 35CrMo (AISI 4135), selected for their exceptional toughness, tensile strength, and performance at elevated temperatures.

• Optimized Hardness & Toughness via Heat Treatment: Each shaft undergoes a precisely controlled Quenching and Tempering (Q&T) process. This critical step develops the ideal metallurgical properties: a tough, shock-absorbing core to handle immense loads and a hardened surface on the journals for outstanding wear resistance.

• Precision Machining for Perfect Fit & Operation: After forging and heat treatment, the shafts are precision machined to your exact specifications. We maintain tight tolerances on all journal diameters, tapers, and overall dimensions to ensure perfect bearing fitment and smooth, balanced rotation.

• End-to-End OEM Manufacturing: Provide us with your technical drawing, and we will manage the entire production process—from material certification and forging to heat treatment, non-destructive testing (NDT), and final machining—delivering a finished, ready-to-install shaft.

Applications

Our forged roller shafts are the premier choice for reliability in a range of large-scale rotating machinery:

• Cement & Lime Kilns

• Mining & Mineral Processing Kilns and Dryers

• Pulp & Paper Industry Kilns

• Chemical Processing Reactors and Dryers