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Girth Gear, Gear, Large Girth Gear manufacturer / supplier in China, offering Large Casting and Forging Girth Gear for Ball Mills, Cast Steel Ball Mill Head & Ball Mill End Cover, Stainless Steel Hollow Shaft Used in Mining Machine and so on.

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Supplier Homepage Product Large cast & forge parts Large Casting and Forging Girth Gear for Ball Mills

Large Casting and Forging Girth Gear for Ball Mills

FOB Price: US $1,000-50,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1,000-50,000/ Piece
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Port: Tianjin, China
Production Capacity: 500pieces/Year
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: diameter less than 15m
  • Hardness: Hardened Tooth Surface
  • Manufacturing Method: Cast Gear
  • Material: Cast Steel
  • Name: Girth Gear
  • Manipulate Way: Forced Manipulation
  • Module: Less Than or Equal to 45
  • Transport Package: in Container
  • Origin: China
  • Application: Machinery
  • Gear Position: External Gear
  • Toothed Portion Shape: Spur Gear
  • Type: Circular Gear
  • ISO 9001:: 2008 Certificated: BV & SGS Certificated
  • Changes Way: Stepped
  • Trademark: citichl
  • Specification: Diameter 15m
  • HS Code: 8414901900
Product Description
                Ball mill large casting and forging girth gear 
                        Large Casting and Forging Girth Gear for Ball Mills
Normalizing&Tempering-Proof Machinnig
Finish Machining(Teeth Grinding)

We can offer you in various process conditions Solutions for Many End Markets and Applications
--Power Generation
--Cement Plant
--Port Machinery
--Oil and natural
--Paper making
--OEM gear case
--General Industrial

Large Casting and Forging Girth Gear for Ball Mills
SpecificationMachining Scope
SizeOD Max 16m
One Piece of Gear: OD Max 13m
Assemble Gear: According to drawings
Hobbing Modulus10-60
Milling ModulusUp to 120
Spiral Modulus1-15
Accuracy GradeMilling: 6 grade
Hobbing: 8 grade
MaterialAlloy steel: 42CrMo4, 34CrNiMo6 etc.
Carbon steel: C45E, 1030
Carburizing steel
Quenched and tempered steel
Heat treatmentQuenching & Tempering, Surface Quenching
Teeth ProfileSpur, Helical, Herringbone, Crown, Spiral, Worm and shaft 

Inspection and Test Outline of Girth Gear:
No.ItemInspection AreaAcceptance CriteriaInspection StageCertificates
1Chemical CompositionSampleMaterial RequirementWhen Smelting
After Heat Treatment
Chemical Composition Report
2Mechanical PropertiesSample(Test Bar on the Gear Body)Technical RequirementAfter Heat TreatmentMechanical Properties Report
3Heat TreatmentWhole BodyManufacturing StandardDuring Heat TreatmentHeat Treatment Report
Curves of Heat Treatment
4Hardness TestTooth Surface, 3 Points Per 90°Technical RequirementAfter Heat TreatmentHardness Teat Report
After Semi Finish Machining
5Dimension InspectionWhole BodyDrawingAfter Semi Finish MachiningDimension Inspection Report
Finish Machining
6Magnetic Power Test (MT)Tooth SurfaceAgreed StandardAfter Finish Gear HobbingMT  Report
7UTSpokes PartsAgreed StandardAfter Rough MachiningUT Report
After Welded
After Semi Finish Machining
8PTDefect AreaNo Defect IndicatedAfter Digging
After Welded
PT Record
9Mark InspectionWhole BodyManufacturing StandardFinal InspectionPictures
10Appearance InspectionWhole BodyCIC's RequirementBefore Packing
(Final Inspection)
11Anti-rust InspectionWhole BodyAgreed Anti-rust AgentBefore PackingPictures 
12Packing InspectionWhole BodyAgreed Packing FormDuring PackingPictures
Large Casting and Forging Girth Gear for Ball Mills
 Testing Process:
· QA DOC: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report
· The data on chemical composition report and mechanical properties report are approved by third party, Luoyang Ship Material Research Institute, CSIC.
· UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc.
· Heat Treatment Report: provide original copy of heat treatment curve/time table.
Large Casting and Forging Girth Gear for Ball Mills
Large Casting and Forging Girth Gear for Ball Mills

Large Casting and Forging Girth Gear for Ball Mills
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Mrs. Julie Cao
sales manager
To: Mrs. Julie Cao

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