86-29-89533183 info@cnsxme.com
Home  /  Products  /  Ball Mill Girth Gear  /  Alloy Steel Cast Girth Gear Replacement for Ball Mill Rod Mill AG Mill and SAG Mill
Quality Alloy Steel Cast Girth Gear Replacement for Ball Mill Rod Mill AG Mill and SAG Mill factory
Quality Alloy Steel Cast Girth Gear Replacement for Ball Mill Rod Mill AG Mill and SAG Mill factory
Quality Alloy Steel Cast Girth Gear Replacement for Ball Mill Rod Mill AG Mill and SAG Mill factory
Quality Alloy Steel Cast Girth Gear Replacement for Ball Mill Rod Mill AG Mill and SAG Mill factory
Quality Alloy Steel Cast Girth Gear Replacement for Ball Mill Rod Mill AG Mill and SAG Mill factory

Alloy Steel Cast Girth Gear Replacement for Ball Mill Rod Mill AG Mill and SAG Mill

Place of Origin:China
Brand Name:SXYH
Certification:ISO9001-2008
Model Number:Customized by Drawing
Minimum Order Quantity:1 set
Price:Negotiable
Payment Terms:T/T
Supply Ability:According to order requirements
Product Details
Highlight:

Alloy Steel Cast Girth Gear

,

Rod Mill Girth Gear Replacement

,

Girth Gear Replacement for Ball Mill
Productname:: Cast Girth Gear
Material:: High Manganese Steel
Machine Type:: Ball Mill
Use:: Ore Mining
Customization:: Available Upon Request
Port:: Shanghai、Qingdao
Product Description
Alloy Steel Cast Girth Gear for Ball Mill, Rod Mill, AG Mill and SAG Mill
Product Summary

We supply gears for various well‑known global brands. Meanwhile, we provide design, customization and manufacturing services according to your actual working‑condition requirements.

The large gear for ball mill comes in diverse configurations to satisfy different operating requirements. From the manufacturing‑process perspective, the large gear mainly consists of two components: the gear rim and the gear hub. According to the tooth layout on the gear rim, they can be categorized into spur gear, helical gear and herringbone gear.

Features & Manufacturing Process

Forged‑rolled steel, bars or castings with good machinability and high strength‑toughness are adopted, and forged‑rolled steel is preferred.

First, the raw blanks are normalized to improve machinability, followed by rough machining. Semi‑finishing is then performed for near‑net gear forming. According to service conditions and material grades, heat‑treatment processes including quenching‑and‑tempering, carburizing‑quenching, tooth‑surface high‑frequency induction quenching and nitriding are applied to achieve required mechanical properties. Final finish machining completes the gear production.

Steel Grade Selection for Different Working Conditions
  1.    Medium‑hard gears (HB220‑320): Medium‑carbon alloy steels such as 40Cr, 42CrMo, 40CrNiMo, 38CrMoAl.
  2.    Hard‑tooth‑face gears (HRc56‑62): Low‑carbon alloy steels including 20CrMnTi, 20CrMnMo, 20CrNiMo, 20CrNi2Mo, 12CrNi3.
  3.    Nitrided gears: 25Cr2MoV, 38CrMoAl.
  4.    Large‑diameter gears (D＞400‑600 mm): When forging is difficult, cast steel blanks (ZG45, ZG40Cr, ZG42CrMo, ZG40CrNiMo, ZG38CrMoAl) are used. Cast steel chemistry mirrors forged‑steel grades, with silicon content raised to 0.60‑0.80 %
Chemical Composition (wt%)
Grade C Si Mn Cr Mo Ni V Others
40Cr 0.37‑0.44 0.17‑0.37 0.50‑0.80 0.80‑1.10 ‑ ‑ ‑ ‑
42CrMo 0.38‑0.45 0.17‑0.37 0.50‑0.80 0.90‑1.20 0.15‑0.25 ‑ ‑ ‑
40CrNiMoA 0.37‑0.44 0.17‑0.37 0.50‑0.80 0.60‑0.90 0.15‑0.25 1.25‑1.65 ‑ ‑
38CrMoAl 0.35‑0.42 0.20‑0.45 0.30‑0.60 1.35‑1.65 0.15‑0.25 ‑ ‑ Al 0.70‑1.10
20CrMnTi 0.17‑0.23 0.17‑0.37 0.80‑1.10 1.00‑1.30 ‑ ‑ ‑ Ti 0.04‑0.10
20CrMnMo 0.17‑0.23 0.17‑0.37 0.90‑1.20 1.10‑1.40 0.20‑0.30 ‑ ‑ ‑
20CrNi2Mo 0.17‑0.23 0.17‑0.37 1.10‑1.40 1.00‑1.30 0.20‑0.30 3.25‑3.65 ‑ ‑
12CrNi3 0.10‑0.16 0.17‑0.37 0.30‑0.60 1.20‑1.60 ‑ 3.00‑3.50 ‑ ‑
25Cr2MoVA 0.22‑0.29 0.17‑0.37 0.40‑0.70 1.50‑1.80 0.25‑0.35 ‑ 0.15‑0.30 ‑
Avantages of fabricated girth gears
  •    The forged material structure excludes the risk of inclusions
  •    Structure defects like gas holes, micro shrinkage, pin holes, hot tears, sand and slag inclusions are avoided
  •    Hence, repair welding of the body structure and e.g. grinding of toothed areas is not required.
  •    The fabricated manufacturing procedure excludes the need for patterns and risers
  •    Rim material has higher hardness and higher strength than the material used for the underlying structure (i.e. web, gussets)
You May Also Like
Quality Wear Resistance Ball Mill Shell Liners Mining Wear Parts Customized Size factory
video

Wear Resistance Ball Mill Shell Liners Mining Wear Parts Customized Size

Produced from high manganese steel by a manufacturer with extensive foundry experience, these durable ball mill shell liners serve as critical mining wear parts. They protect the mill cylinder from impact and abrasion during grinding.
Quality Mining Hydraulic Bolt Punch Tool 1500J Impact For Ball Mill Liner Removal factory
video

Mining Hydraulic Bolt Punch Tool 1500J Impact For Ball Mill Liner Removal

Engineered for mill maintenance, the MC2-150B hydraulic bolt punch uses dual impact modes and a nitrogen air spring buffer to free seized liner bolts on ball and SAG mills. Laser-cut structure, imported core valves and safety protection cut downtime and manual labor.
Quality Large Cast Steel Split Girth Gear Heavy Duty for Ball Mill Mining Equipment factory
video

Large Cast Steel Split Girth Gear Heavy Duty for Ball Mill Mining Equipment

This large cast steel split girth gear is a heavy duty ring gear for ball mills and rotary kilns. Split design aids transport and assembly, and it transmits torque to drive the mill shell reliably daily.
Quality Precision Heavy Duty Mill Relining Machine MRM Hydraulic Control Mill Liner Handler factory
video

Precision Heavy Duty Mill Relining Machine MRM Hydraulic Control Mill Liner Handler

This MRM mill reline machine is a heavy duty hydraulic liner handler. Working with ball mills and SAG mills, it handles liners safely and speeds relining while cutting downtime and manual effort daily.
CONTACT US
You Can Contact Us At Anytime!