Heavy Duty Gear for Grinding Mill Machine Spare Parts

• Customization: Available
• Hardness: Hardened Tooth Surface
• Gear Position: External Gear
• Model NO.: diameter3.2 mill gear, diameter5400
• Toothed Portion Shape: Tooth Vertical
• Material: Cast Steel
• Type: Circular Gear
• Guarantee Period: a Single Spark
• Transport Package: Nude Packing
• Specification: 3200*4500mm
• Trademark: CR Xuzhou Churun
• Origin: Jiangsu Xuzhou
• HS Code: 8483409010
• Production Capacity: 3 Payment/Month

Product Description

Basic Info.

Model NO.
YZ
Manufacturing Method
Cast Gear
Toothed Portion Shape
Spur Gear
Material
Cast Steel, Forged Steel
Type
Circular Gea
Package Size
5400*3430*370
Package Gross Weight
150000kg

Product Description

Custom casting girth gear 42CrMo Rotary Kiln large ring gear high quality large diameter ring gear
Product Description
 


Process: 
Forging/Casting
Normalizing&Tempering-Proof Machinnig
Quenching&Tempering
Finish Machining(Teeth Grinding)

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

Specification	Machining Scope
Size	OD Max 16m
	One Piece of Gear: OD Max 13m
	Assemble Gear: According to drawings
Hobbing Modulus	10-60
Milling Modulus	Up to 120
Spiral Modulus	1-15
Accuracy Grade	Milling: 6 grade
	Hobbing: 8 grade
Material	Alloy steel: 42CrMo4, 34CrNiMo6 etc.
	Carbon steel: C45E, 1030
	Carburizing steel
	Quenched and tempered steel
Heat treatment	Quenching & Tempering, Surface Quenching
Teeth Profile	Spur, Helical, Herringbone, Crown, Spiral, Worm and shaft

Inspection and Test Outline of Girth Gear:

No.	Item	Inspection Area	Acceptance Criteria	Inspection Stage	Certificates
1	Chemical Composition	Sample	Material Requirement	When Smelting After Heat Treatment	Chemical Composition Report
2	Mechanical Properties	Sample(Test Bar on the Gear Body)	Technical Requirement	After Heat Treatment	Mechanical Properties Report
3	Heat Treatment	Whole Body	Manufacturing Standard	During Heat Treatment	Heat Treatment Report Curves of Heat Treatment
4	Hardness Test	Tooth Surface, 3 Points Per 90°	Technical Requirement	After Heat Treatment	Hardness Teat Report
				After Semi Finish Machining
5	Dimension Inspection	Whole Body	Drawing	After Semi Finish Machining	Dimension Inspection Report
				Finish Machining
6	Magnetic Power Test (MT)	Tooth Surface	Agreed Standard	After Finish Gear Hobbing	MT  Report
7	UT	Spokes Parts	Agreed Standard	After Rough Machining	UT Report
				After Welded
				After Semi Finish Machining
8	PT	Defect Area	No Defect Indicated	After Digging After Welded	PT Record
9	Mark Inspection	Whole Body	Manufacturing Standard	Final Inspection	Pictures
10	Appearance Inspection	Whole Body	CIC's Requirement	Before Packing (Final Inspection)
11	Anti-rust Inspection	Whole Body	Agreed Anti-rust Agent	Before Packing	Pictures
12	Packing Inspection	Whole Body	Agreed Packing Form	During Packing	Pictures

 

Testing Process:
· QA DOC: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report
· 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.