China Hot selling Ball Mill Girth Gear and Rotary Kiln Girth Gear for Mine and Construction Machines with Good quality

Product Description

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

Girth Gears offered locate extensive application in different sector sectors which includes in sponge iron vegetation, metal & cement market, mining business, wind mills as nicely as in other business sectors. These are manufactured obtainable in module range of 10 Module to 70 Module and in minimum diameters of 100 mm to 15000 mm. More, these comprise highest weight of 70 MT single items. Here the range of hardened & floor equipment containers/gears comprise Worm gear containers, Helical / Double helical gears/gearboxes, Helical-Bevel gearboxes, Planetary Gearboxes and other folks.

ZTIC Gear Cutting Machines include:

Ø16m CNC Hobbing MachineØ12m Equipment Reducing Equipment (Switzerland)Ø10m Hobbing Machine (Germany)Ø4m CNC Higher Velocity Hobbing Device (Germany)Ø1.6m Horizontal CHC Hobbing Machine (Germany)Ø5m CNC Profile Gear Grinding Equipment (Germany)Ø2.8m CNC Profile Equipment Grinding Equipment (Germany)Ø1.25m CNC Profile Equipment Grinding Equipment (Germany)Ø1m CNC Profile Gear Grinding Equipment (Germany)Ø0.8m CNC Profile Gear Grinding Machine (Germany)Computerized positioner

Module Selection:  ten Module to 70 Module.

Diameter : Min one hundred mm to16000 mm.

Weight : Max a hundred and twenty MT one piece.

Hardened & Ground Gear Boxes/Gears:

Worm equipment boxesHelical / Double helical gears/gearboxesHelical-Bevel gearboxesPlanetary GearboxesHardened & Ground Helical- CZPT & Spiral-bevels gears/gearboxes.Rack & Pinions


Min 3 hp to  Max 1400 hpSplash / Compelled lubrication type

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With much more than 1000 girth gears marketed in excess of the entire world CZPT Gear is a leading supplier in the cement and mineral business. And as member of AGMA (American Gear Makers Association), we do actively take component in defining the standard for gear ranking calculations and support elements. 

We give girth gears in 3 diverse designs

Fabricated steel
– cast ring
– rolled plate

Forged steel 

Ductile (Nodular) solid iron  

Fabricated gears became a lot more frequent in the past and are created with cast steel equipment rim components and electro welded physique structure. The rings are manufactured from a complete block of substantial resistance alloy metal. Following the tough machining of the ring, we have out hardening and tempering heat treatment method in purchase to boost the mechanical characteristic and therefore its appropriate efficiency.  

Avantages of fabricated girth gears

The forged material structure excludes the chance of inclusions

Composition flaws like fuel holes, CZPT shrinkage, pin holes, scorching tears, sand and slag inclusions are avoided

Consequently, mend welding of the human body construction and e.g. grinding of toothed locations is not necessary.

The fabricated producing method excludes the require for styles and risers

Rim substance has larger hardness and larger toughness than the content utilised for the underlying construction (i.e. internet, gussets)

These characteristics will decrease the lead time and fees. Fabricated production assures a quick shipping.

This is particularly advantageous in an crisis scenario, in which the current equipment rim is struggling from damage   


External teeth 
Maximum diameter: 16000 mm 
Toothed experience width: 1700 mm 
Greatest module: forty five by hob 
Optimum module: sixty five equipment finishing cutter

Interior teeth 
Optimum Diameter: 6500 mm 
Greatest module: 25.4 
Toothed encounter width: 400 mm

Forging material process 
Last rolling 
Furnace cooling 
Manage on production 
H2o quenching 
Hardness testing 
Tough machining 
Ultrasonic testing and dimensional inspection 
Closing inspection certification

Our girth gears are applied in the cement and minerals industries: 
Numerous varieties of horizontal mills 
Rotary dryers 
Rotary kilns 
Any other big gear ring application


A single SourceOriginal Gear Manufacture (OEM) Complex DrawingsGearing technological experience for kilns and grinding millsState of the art manufacturing services and qualityGlobal product sales and provider supportRotary  Kiln Girth Gears

We are leading supplier the Kiln Girth Gears for the a variety of vegetation as listed below.

Sponge Iron Plants  50TPD 100TPD 300TPD350TPD,500TPD,1000TPDCement vegetation as per customer requirementGears for phosphate mines, Alumina plant, kaolin-bentonite

Gear Slicing Capability:

100mm diameter to 16000mm diameter10Module to 70Module

The Kiln girth gears are available largely in bi-part, 4 components, 8 elements or multi segments as for every the need and suitability with the application of gear.


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


Good quality assurance paperwork
The adhering to studies are to be submitted to Good quality Assurance:
a. Chemistry report
b. Actual physical report
c. Heat treatment method paperwork
CITIC HMC  Q/HM 973.2-2007
Specification for Metal Castings for Grinding Mills
1 5
d. Ultrasonic inspection report (just before and soon after repairs)
e. Magnetic particle inspection report (just before and right after repairs)
f. Dimensional report
g. Weld repair maps
h. Weld techniques and Procedure qualification report
i. Welder qualification
j. Nondestructive testing inspector qualification


The technical needs of a huge CZPT Equipment ring:
1) is pretreated just before normalizing area hardening treatment method, the hardness ought to HB210 ~ 250 mechanical functionality are the final power Rb 690MPa, produce pressure Rs 490MPa, elongation D5 11%, reduction of area W twenty five% , impact toughness Ak 30J enamel induction hardened, hardness HRC50 ~ fifty five effective hardened layer depth 3 ~ 5mm.
2) general ultrasonic flaw detection, interior good quality need to fulfill 2 specifications GB7233-87 standard demands tooth and fillet magnetic particle inspection, quality ought to satisfy 2 needs GB/T9444-88 requirements.
3) Note the casting is not rounded R5 ~ R10.
4) Tooth chamfer at both ends and 1 45b.5) by 2 and a fifty percent ring equipment tooth width of each ring CZPT along the edge of a complete ring produced with large energy bolts, merged with the tooth surface should be at the base heart.
two big ring gear production approach
two.1 of tough
Metal casting blank is offered by CITIC Hefty CZPT Co., Ltd. Heavy Forging plant, operate by GB11352-89 normal specifies specifications for modeling in accordance to the casting method, smelting, casting, hit bins, cleaning, dressing castings. Throughout inspection and acceptance by the drawings and Technical requirements for steel blank
Checks, in accordance JB/T6402-92 expectations issued following acceptance
Down procedure.
2.2 roughing
Crossed by drawing and continue to be out allowance, alignment, connection, processing each inside and outside the circle, combining face milling, drilling and other procedures.
2.3 Exploration harm
Overall ultrasonic flaw detection, internal high quality should fulfill the 2 demands of GB7233-87 standards.
2.4 normalizing pretreatment
Semi-ring pairs normalizing and tempering treatment, supply a very good organization for subsequent surface area hardening press drawings deformation of the 50 % ring gear inspection after heat treatment method.
2.5 Machining
1st 2 and a fifty percent ring is created with high energy bolts connecting the ring as a whole, the overall process by drawing a circle Quannei Wai enamel and higher and decrease finish, and then drawing and machining milling process needs.
two.6 Elimination of processing anxiety
The all round ring annealed to eradicate pressure.
two.7 all round ring surface hardening
IF along the alveolar tooth surface induction hardening, hardness HRC50 ~ fifty five, successful hardened layer depth 3 ~ 5mm.
2.8 Closing inspection
First, the detection frequency quenching, the hardness after tempering ring equipment cogging satisfies the needs of the drawings secondly, to detect whether the optimum outer diameter greater dimensions D6944 as the deformation 3mm, the mechanical correction essential until finally competent Thirdly, tooth and fillet magnetic particle inspection, quality ought to meet 2 needs GB/T9444-88 normal demands Ultimately, in accordance to the drawings and technological requirements for closing inspection.


Organization Profile

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The drive component is a worm. In order to merge the wheel/worm into a worm gear, it have to be ensured that the heart length is equivalent and the transmission ratio is equivalent. Centre distances are offered from stock in tiny steps in between 17mm and 80mm. Each heart distance has multiple gear ratios. Ep worm gears are ideal for the creation of worm drives with a shaft angle of 90°. Making use of a worm generate, really huge reduction ratios (up to one hundred:1) can be accomplished.

China Hot selling Ball Mill Girth Gear and Rotary Kiln Girth Gear for Mine and Construction Machines     with Good quality

spiral bevel gear

As one of the leading spiral bevel gear manufacturers, suppliers, and exporters of mechanical products, We offer spiral bevel gear and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of spiral bevel gear.

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