Business License
Contact Us
Your inquiry content must be between 10 to 5000 characters
Please enter Your valid email address
Large Girth Gear for Mill & Rotary Kiln – Up to 15m Diameter, Controlled Carburizing Deformation
Girth gears (large ring gears) are core transmission components for ball mills, rotary kilns, dryers, and other large rotary equipment. Sankuang Machinery provides girth gear manufacturing services with diameters up to 15 meters.
Technical Challenges & Solutions:
Large girth gears are characterized by large outer diameter and thin walls. Deformation and expansion after carburizing and quenching differ significantly from conventional gears. Our technical solutions:
Pre-heat treatment of blanks: Additional preparatory heat treatment before carburizing to stabilize microstructure and reduce deformation
Custom gear hobs: Special hobs designed to control tooth surface allowance and root relief
Custom quenching fixtures: Special heat treatment tooling to control carburizing deformation
Multi-setup machining: Process planning based on machining deformation patterns for multi-setup and pre-stressed machining
Minimum finish allowance: Ensuring minimum finish allowance for minimum deformation
Materials: Cast steel (ZG42CrMo, ZG40CrNiMo), forged alloy steel (42CrMo, 40CrNiMoA), ductile iron. Blank requires normalizing + tempering, cast hardness approx. 175HB.
Configurations: Integrated, half-to-half, four-segment, and multi-segment designs.
Accuracy Standard: GB10095 (equivalent to ISO 1328).
Inspection Items: Chemical composition analysis, mechanical property testing, heat treatment curves, UT, MT, tooth surface hardness (3 points per 90°).
Recently Posted
-
Large Girth Gear for Ball Mill Rotary Kiln Up to 15m Diameter Module 10-70
September 20, 2026Manufacturing Process:Forging/Casting → Normalizing + Tempering → Rough Machining → Gear Hobbing → Quenching + Tempering → Finish
Read More -
High-Precision Hardened Gear Shaft | Hobbing/Shaping/Grinding · Carburized HRC 58-62 · DIN Grade 5 | Henan Sankuang Machinery
September 20, 2026Sankuang Machinery specializes in high-precision gear shaft machining, with accuracy up to DIN/ISO/GB Grade 5 and surface hardness
Read More -
Large Non-Standard Custom Machining | Forging/Casting Blank · Rough to Finish Full Process · ISO9001 | Henan Sankuang Machinery
September 20, 2026Leveraging Luoyang's heavy equipment manufacturing cluster, Sankuang Machinery undertakes custom precision machining of large
Read More -
High-Efficiency Fine Coal Dewatering Vibrating Screen | UHMW-PE Screen Deck · Capacity 5-100t/h · Riveted Motor Base · 16 Models | Henan Sankuang Mach
September 20, 2026Sankuang Machinery provides high-efficiency fine coal dewatering vibrating screens, with sixteen specifications available, suitabl
Read More
Contact Us
Recommended Products
-
High Precision Gear Shaft Machining | Custom Gear Shaft Manufacturer - Henan Sankuang MachineryNegotiableMOQ: 1 Set -
Custom Industrial Rubber Rollers Manufacturer | Henan Sankuang MachineryNegotiableMOQ: 1 Set
-
Planetary Gearbox With 10:1 Reduction Ratio and 95% Mechanical EfficiencyNegotiableMOQ: 1 Piece
-
Heavy Duty Transmission Gear Shaft - 1000Nm Torque CapacityNegotiableMOQ: 1 Unit
-
Mining Equipment Gear Shaft - For Crusher & Conveyor SystemsNegotiableMOQ: 1 Unit
-
Heavy-Duty Vertical Centrifuge for Coal Preparation Plant 2000kg Load CapacityNegotiableMOQ: 1 Set
-
Customized CNC Gantry Milling for Large Bearing Rings With 24/7 Emergency ServiceNegotiableMOQ: 1 Piece
-
Robotic Arm Bearing for Automated Assembly Line IntegrationNegotiableMOQ: 1 Combo
-
Precision Ground Coupling for CNC Machine Tool Spindle ConnectionsNegotiableMOQ: 1 Set
-
Customizable Reducer Coupling With Mill Test Report for OEM ApplicationsNegotiableMOQ: 1 Set
-
Precision Rubber Rollers With ±0.05mm Tolerance for Textile MachineryNegotiableMOQ: 1 Combo
-
Nitrile Rubber Rollers With Shore A 60-90 Hardness for Industrial MachineryNegotiableMOQ: 1 Combo
-
Precision Ground Spline Shaft Gear With DIN 5480 StandardNegotiableMOQ: 1 Combo
-
Customized Ring Gear Internal Ring Gear With DIN 5480 Standard for Power TransmissionNegotiableMOQ: 1 Piece
-
Precision Large Gear Hobbing With 8m CNC EquipmentNegotiableMOQ: 1 Piece
-
Precision Gear Hobbing Machine With 8m Max Diameter and Automatic Feed SystemNegotiableMOQ: 1 Piece
-
Large Module Custom Gear With 42CrMo Alloy Steel for Mining EquipmentNegotiableMOQ: 1 Piece
-
Reliable Coal Slime Centrifuge With Mill Test Report and Spare PartsNegotiableMOQ: 1 Set
-
Precision CNC-Machined Forged Crankshaft Connecting Rod With ±0.01mm ToleranceNegotiableMOQ: 1 Combo
-
Precision Coaxial Hole Machining for Heavy Industrial EquipmentNegotiableMOQ: 1 Piece
