Gold Member Since 2011
Audited Supplier
Shanghai Special Metal Co., Ltd.

Girth Gear, Gear Ring, Cast Gear manufacturer / supplier in China, offering Ball Mill Girth Gear, OEM Cast High Hardness Sprocket Gear, Integration Ingot Mold and so on.

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Ball Mill Girth Gear

FOB Price: US $1,400-5,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1,400-5,000/ Piece
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Port: Shanghai, China
Production Capacity: 100, 000 Tons Per Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: Ball mill girth gear
  • Casting Form Material: Sand
  • Casting Form Usage Count: Semi-permanent
  • Surface Roughness: Ra12.5
  • Machining Tolerance: +/-0.10mm
  • Certification: SGS, ISO 9001:2008
  • Certificate: En 1024 3.1
  • Service: OEM, ODM
  • Transport Package: Frame or as Your Require
  • Origin: Shanghai, China
  • Casting Method: Sand Casting
  • Casting Metal: Cast Steel
  • Surface Treatment: Polishing
  • Coating: Heat Resistant Coating
  • Standard: DIN
  • Alternative Material: Stainless Steel
  • Inspection: Ut, Mt
  • Trademark: CSM
  • Specification: DIN, ASTM Standards, etc
Product Description
Ball mill girth gear


Weight: 10~35T 
Applicable devices: rotary kiln, ball mill, tube mill
Application: Cement, building material, metallurgy etc. 
Customizable or not: Yes 

Product introduction 
Gear ring is the main part of rotary kiln and ball mill which has to run for a long time, therefore, there is high quality requirement for gear ring in production.
Our main material for the Gear ring is similar to followings:

                                           Standard Specifications for Cast Steel
Country                                           Standard                                               Grade
United Kingdom                              BS EN 10083/2-1991                            C45
USA                                                ASTM A 29/A29M-04                            1045
Germany                                        DIN EN 10083-2-2006                            C45/CK45
Japan                                             JIS G5111                                               SCC5
International                                   ISO 683/1                                               C45/C45E4/C45M2




Heavy Load Transmission Gear Ring Hardness Comparison


 
TypeTreatmentHardness
PinionGearPinionGear
 
 
Spur Gear
 
 
Quenching &   Tempering
Normalizing240~270HB180~220HB
Quenching &   Tempering260~290HB220~240HB
Quenching &   Tempering280~310HB240~260HB
Quenching &   Tempering300~330HB260~280HB
 
 
Helical Gear
 
Quenching &   Tempering
Normalizing240~270HB160~190HB
Normalizing260~290HB180~210HB
Quenching &   Tempering270~300HB200~230HB
Quenching &   Tempering300~330HB230~260HB

                                                           

                                                   Standard Specifications for Cast Steel
Country                                                   Standard                                               Grade
United Kingdom                                      BS 970-1                                               708 M40
USA                                                        ASTM A 29/A29M-04                            4140/4142
Germany                                                DIN EN 10083-1-1996                           42CrMo4
Japan                                                     JIS G4053-2003                                    SCM440
International                                           ISO 683/1                                                  3

Advantage

Shanghai Special Metal Co., Ltd adopts unique heat treatment to optimize the gear ring structure, to enhance hardness,wear resistance and impact force.
Shanghai Special Metal Co., Ltd uses high strength steel to cast gear ring and optimize rotary kiln to ensure the stability under long working time and prolongs service time.
Shanghai Special Metal Co., Ltd has a strong ability of producing steel casting and we can do mass production of gear ring in short cycle with large amount.


Production Process  
1. Wooden pattern Production  
2. Molding 
3. Pouring 
4. First cleaning 
5. Heat treatment - grinding (inspection)
6. Rough machining (inspection)-finishing machining (inspection)
7. Packing-delivering


Quality assurance 
The fabrication route is governed by the provisions of the implemented Quality System ISO 9001: 2000. The standard documentation ensures the full traceability of every process step: 
• Manufacturer test certificates according to DIN EN 10.204 § 3.1 including chemical composition, mechanical properties and non-destructive examination; 
• Dimensional check supported with a "as-built" sketch; 
• Record of the heat treatment chart;

Pictures

Ball Mill Girth Gear

Ball Mill Girth Gear

Ball Mill Girth Gear


 
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