Girth Gear for Transmission Parts Used in Grinding Machine and Mill

• Customization: Available
• Application: Industry
• Hardness: According to Customer′s Requirement
• Manufacturing Method: Cast Gear
• Toothed Portion Shape: Spur Gear
• Material: Steel
• Type: Circular Gear
• Max. Diameter: 15m: Max. Module: 45
• ISO 9001:: 2008 Certificated: BV & SGS Certificated
• Manipulate Way: Forced Manipulation
• Changes Way: Stepped
• Transport Package: Suitable for Shipping
• Specification: according to the customer′s requirement
• Trademark: CIC
• Origin: China

Product Description

CITICIC is the casting & forging center in central-south China, possessing 50t electric arc furnace, 60t LF ladle refining furnace, and 60t VD/VOD refining furnace, etc. We can pour 350t liquid steel one time and yields more than 200,000t of high quality liquid steel and can produce the high quality steel of more than 260 steel grades such as carbon steel, structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. The maximum weight of casting, gray casting, graphite cast iron and non-ferrous casting is 200t, 30t, 20t and 205t separately.

 

Features:

Module Range: 10 Module to 70 Module.

Diameter: Min 800mm to16000 mm.

Weight: Max 120 MT single piece.

Three different designs: Fabricated steel - forged ring - rolled plate

Standards / Certificates: • UNI EN ISO • AWS • ASTM • ASME • DIN

 

Advantages:

- Products with Customers' Designs

- Strong Machining & Heat Treatment Abilities

- Strict Quality Control

- Prompt Delivery

- Experience in Cooperation with Fortune 500 Companies

 

Process:

Forging / Casting

Normalizing & Tempering-Proof Machining

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

--Sugar

--Cement Plant

--Port Machinery

--Oil and natural

--Papermaking

--OEM gear case

--General Industrial

 

Specifications Of Gear:

No.	Item	Description
1	Diameter	≤15m
2	Module	≤45
3	Material	Cast Alloy Steel, Cast Carbon Steel, Forged Alloy Steel, Forged Carbon Steel
4	Structure From	Integrated, Half to Half, Four Pieces and More Pieces
5	Heat Treatment	Quenching & Tempering, Normalizing & Tempering, Carburizing & Quenching & Tempering
6	Tooth Form	Annular Gear, Outer Gear Ring
7	Standard	ISO, EN, DIN, AISI, ASTM, JIS, IS, GB

 

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

 

Facilities For Manufacturing Gear Ring:

No	Item	Description
1	Smelting & Casting Capability	40t, 50t, 80t Series AC Electric Arc Furnace 2×150t, 60t LF Ladle Refining Furnace 150t, 60t Series VD / VOD Furnace 20×18m Large Pouring Facility We can pour 900t refining liquid steel one time, and achieve vacuum poured 600t steel ingots. We can produce the high quality steel of more than 260 steel grades as carbon steel, structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement.  The maximum weight of casting steel, gray casting, graphite cast iron and non-ferrous casting is 600t, 200t, 150t and 20t separately.
2	Forging Capability	The only one in the word, the most technologically advanced and the largest  specification18500t Oil Press, equipped with 750t.m forging operation machine 8400t Water Press 3150t Water Press 1600t Water Press Φ5m High Precision Ring Mill (Germany) Φ12m High Precision Ring Mil We can roll rings of different sections of carbon steel, alloy steel, high temperature alloy steel and non-ferrous alloys such as copper alloy, aluminum alloy and titanium alloy.  Max. Diameter of rolled ring will be 12m.
3	Heat Treatment Capability	9×9×15m, 8×8×12m, 6×6×15m, 15×16×6.5m, 16×20×6m, 7×7×17m Series Heat Furnace and Heat Treatment Furnaces φ2.0×30m, φ3.0×5.0m Series Heat Treatment Furnaces φ5.0×2.5m, φ3.2×1.5m, φ3.0×5.0m, φ2.0×5m Series Carburizing Furnaces & Nitriding Furnaces & Quenching Bathes φ2.0×30m Well Type CNC Electrical Furnaces Φ3.0×5.0M Horizontal Gas Temperature-differential Furnace Double-frequency and Double-position Quenching Lathe of Pinion Shaft
4	Machining Capability	1. ≥5m CNC Heavy Duty Vertical Lathes 12m CNC Double-column Vertical Lathe 10m CNC Double-column Vertical Lathe 10m CNC Single-column Vertical Lathe 6.3m Heavy Duty Vertical Lathe 5m CNC Heavy Duty Vertical Lathe   2. ≥5m Vertical Gear Hobbing Machines 15m CNC Vertical Gear Hobbing Machine 10m Gear Hobbing Machine 8m Gear Hobbing Machine 5m Gear Hobbing Machine 3m Gear Hobbing Machining   3. Imported High-precision Gear Grinding Machines 0.8m~3.5m CNC Molding Gear Grinding Machines   4. Large Boring & Milling Machines 220 CNC Floor-mounted Boring & Milling Machine 200 CNC Floor-mounted Boring & Milling Machine 160 CNC Floor-mounted Boring & Milling Machine