GS42CrMo4 Mill Girth Gear and rotary kiln gear for cement plant

Name: GS42CrMo4 Mill Girth Gear and rotary kiln gear for cement plant
Brand: CITIC IC
Price: 10 USD

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Brand Name :	CITIC IC
Certification :	ISO/CE
Supply Ability :	2000 Set/Sets per Year
Price :	$10,000.00 - $25,000.00 / Set

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GS42CrMo4 Mill Girth Gear and rotary kiln gear for cement plant

Product Description

Girth Gears: Rotary kiln Girth Gear,ball mill Girth Gear

Girth Gears offered find extensive application in different industry sectors including in sponge iron plants, steel & cement industry, mining industry, wind mills as well as in other industry sectors. These are made available in module range of 10 Module to 70 Module and in minimum diameters of 100 mm to 15000 mm. Further, these comprise maximum weight of 70 MT single pieces. Here the range of hardened & ground gear boxes/gears comprise Worm gear boxes, Helical / Double helical gears/gearboxes, Helical-Bevel gearboxes, Planetary Gearboxes and others.

CITIC IC Gear Cutting Machines include:

Ø16m CNC Hobbing Machine
Ø12m Gear Cutting Machine (Switzerland)
Ø10m Hobbing Machine (Germany)
Ø4m CNC High Speed Hobbing Machine (Germany)
Ø1.6m Horizontal CHC Hobbing Machine (Germany)
Ø5m CNC Profile Gear Grinding Machine (Germany)
Ø2.8m CNC Profile Gear Grinding Machine (Germany)
Ø1.25m CNC Profile Gear Grinding Machine (Germany)
Ø1m CNC Profile Gear Grinding Machine (Germany)
Ø0.8m CNC Profile Gear Grinding Machine (Germany)
Automatic positioner

Module Range: 10 Module to 70 Module.

Diameter : Min 100 mm to16000 mm.

Weight : Max 120 MT single piece.

Hardened & Ground Gear Boxes/Gears:

Worm gear boxes
Helical / Double helical gears/gearboxes
Helical-Bevel gearboxes
Planetary Gearboxes
Hardened & Ground Helical- bevel gears & Spiral-bevels gears/gearboxes.
Rack & Pinions

Ratings:

Min 3 hp to Max 1400 hp
Splash / Forced lubrication type

Send Enquiry

With more than 1000 girth gears sold over the world CITICIC Gear is a leading supplier in the cement and mineral industry. And as member of AGMA (American Gear Manufacturers Association), we do actively take part in defining the standard for gear rating calculations and service factors.

We provide girth gears in three different designs

Fabricated steel
- forged ring
- rolled plate
Cast steel
Ductile (Nodular) cast iron

Fabricated gears became more common in the past and are constructed with forged steel gear rim materials and electro welded body structure. The rings are manufactured from a whole block of high resistance alloy steel. After the rough machining of the ring, we carry out hardening and tempering heat treatment in order to improve the mechanical characteristic and therefore its relevant performance.

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)

These features will reduce the lead time and costs. Fabricated manufacturing ensures a fast delivery.

This is especially beneficial in an emergency situation, where the existing gear rim is suffering from damage

Features

External teeth
Maximum diameter: 16000 mm
Toothed face width: 1700 mm
Maximum module: 45 by hob
Maximum module: 65 gear finishing cutter
Internal teeth
Maximum Diameter: 6500 mm
Maximum module: 25.4
Toothed face width: 400 mm

Forging material process
• Forging
• Final rolling
• Furnace cooling
• Control on production
• Water quenching
• Hardness testing
• Rough machining
• Ultrasonic testing and dimensional inspection
• Final inspection certification

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

Applications
Our girth gears are applied in the cement and minerals industries:
• Various types of horizontal mills
• Rotary dryers
• Rotary kilns
• Any other large gear ring application

Pinions

CITICIC Gear invested in significant resources and achieved many innovations with pinions. The right combination of material, hardness and finishing between pinion and gear is crucial for a long lifetime of the installed equipment. We design and manufacture pinions to match every customers need, no matter how unique the situation might be.

Pinion design

bored
solid on shaft / integral
self aligned
spur, helical or double helical

Materialization

forged alloyed steel
through hardened, case hardened or quenched and tempered
Spur, helical or double helical
carburized
induction
nitrided

Characteristics

gear cutting with hobs
the gear quality is checked by profile tester
tooth flank modification
- profile correction
- lead correction (straight/barrel)
designs /ratios according to ISO-DIN-A.G.M.A.
FEM/FEA simulation software

Standards/Certificates

UNI EN ISO
AWS
ASTM
ASME
DIN

Applications
Our pinions are applied in the cement and minerals industries:

Ball - mills
ROD - mills
Semi Autogeneous Grind (SAG)
Rotary kilns/coolers/dryers

Advantages

One Source
Original Equipment Manufacture (OEM) Technical Drawings
Gearing technical expertise for kilns and grinding mills
State of the art manufacturing facilities and quality
Global sales and service support

Rotary Kiln Girth Gears

We are leading supplier the Kiln Girth Gears for the various plants as listed below.

Sponge Iron Plants 50TPD 100TPD 300TPD350TPD,500TPD,1000TPD
Cement plants as per customer requirement
Gears for phosphate mines, Alumina plant, kaolin-bentonite

Gear Cutting Capacity:

100mm diameter to 16000mm diameter
10Module to 70Module

The Kiln girth gears are available mainly in bi-part, four parts, 8 parts or multi segments as per the requirement and suitability with the application of gear.

In the field of grinding mill components, We supply mill heads,feed inlet,grinding roller,cement kiln riding ring, casting gears, shaft block .Also we supply mill shell of welding structures and fabrications.

Quality assurance documents
The following reports are to be submitted to Quality Assurance:
a. Chemistry report
b. Physical report
c. Heat treatment documents
CITIC HMC Q/HM 973.2-2007
Specification for Steel Castings for Grinding Mills
1 5
d. Ultrasonic inspection report (before and after repairs)
e. Magnetic particle inspection report (before and after repairs)
f. Dimensional report
g. Weld repair maps
h. Weld procedures and Procedure qualification record
i. Welder qualification
j. Nondestructive testing inspector qualification

Mill Girth Gear

Girth Gear

(1)GS42CrMo4Alloy Steel (corporate proprietary standards)

HB 220~240

(2)semi-structured, Y-Spoke
(3)Helical
(4) reasonable sealing and alignment structure of alloy steel (corporate proprietary standards)

(1) outer steel refining (R-H argon and vacuum treatment)
(2) proprietary cold mold hanging sand technology to ensure the casting, the teeth dense
(3) normalizing (proprietary technology) to ensure that the tooth surface hardness
After

(4)rough hobbing, release time, repair the joint surface, then fine roll
(5) proprietary homemade hob fine hobbing

(1)castings mechanical properties and chemical composition (internal standard)
(2) roughing after sonic testing
(3)semi-finishing, finishing after ultrasonic testing and magnetic particle inspection
(4) tooth surface magnetic particle inspection, hardness test
(5)tooth tolerance check
(6) the factory assembly load test to check the accuracy of the size of gear

Mill Girth Gear

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GS42CrMo4 Mill Girth Gear and rotary kiln gear for cement plant

GS42CrMo4 Mill Girth Gear and rotary kiln gear for cement plant

GS42CrMo4 Mill Girth Gear and rotary kiln gear for cement plant

Girth Gears: Rotary kiln Girth Gear,ball mill Girth Gear

Pinions

Rotary Kiln Girth Gears

Large Ball Mill Girth Gear

GS42CrMo4 Ball Mill Girth Gear

120 MT Mill Girth Gear

GS42CrMo4 Mill Girth Gear and rotary kiln gear for cement plant

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