Merchandise Description

Girth Gears: Rotary kiln Girth Gear,ball mill Girth Gear
Girth Gears offered find substantial application in distinct market sectors including in sponge iron crops, steel & cement market, mining business, wind mills as properly as in other sector sectors. These are created accessible in module variety of ten Module to 70 Module and in least diameters of one hundred mm to 15000 mm. Even more, these comprise optimum excess weight of 70 MT one pieces. Here the variety of hardened & floor equipment containers/gears comprise Worm equipment containers, Helical / Double helical gears/gearboxes, Helical-Bevel gearboxes, Planetary Gearboxes and other individuals.

ZTIC Gear Chopping Machines consist of:
Ø16m CNC Hobbing Equipment
Ø12m Gear Cutting Device (Switzerland)
Ø10m Hobbing Machine (Germany)
Ø4m CNC Substantial Speed Hobbing Equipment (Germany)
Ø1.6m Horizontal CHC Hobbing Equipment (Germany)
Ø5m CNC Profile Gear Grinding Device (Germany)
Ø2.8m CNC Profile Equipment Grinding Machine (Germany)
Ø1.25m CNC Profile Gear Grinding Device (Germany)
Ø1m CNC Profile Gear Grinding Machine (Germany)
Ø0.8m CNC Profile Equipment Grinding Device (Germany)
Computerized positioner
Module Range:  10 Module to 70 Module.
Diameter : Min a hundred mm to16000 mm.
Weight : Max a hundred and twenty MT one piece.
Hardened & Ground Gear Bins/Gears:
Worm equipment containers
Helical / Double helical gears/gearboxes
Helical-Bevel gearboxes
Planetary Gearboxes
Hardened & Ground Helical- CZPT & Spiral-bevels gears/gearboxes.
Rack & Pinions
Ratings:
Min 3 hp to  Max 1400 hp
Splash / Forced lubrication type
Deliver Enquiry
With more than 1000 girth gears offered over the planet CZPT Gear is a leading supplier in the cement and mineral market. And as member of AGMA (American Gear Makers Association), we do actively get element in defining the common for gear score calculations and services elements. 
We provide girth gears in 3 various styles
Fabricated steel
– forged ring
– rolled plate
Solid steel 
Ductile (Nodular) solid iron  
Fabricated gears turned more typical in the past and are made with cast steel gear rim supplies and electro welded body framework. The rings are made from a whole block of higher resistance alloy steel. After the rough machining of the ring, we carry out hardening and tempering warmth treatment in buy to boost the mechanical attribute and for that reason its relevant performance.  
Avantages of fabricated girth gears
The solid content framework excludes the threat of inclusions
Framework problems like gas holes, CZPT shrinkage, pin holes, scorching tears, sand and slag inclusions are prevented
Consequently, repair welding of the entire body composition and e.g. grinding of toothed places is not needed.
The fabricated production process excludes the need to have for designs and risers
Rim substance has increased hardness and greater energy than the content employed for the fundamental framework (i.e. net, gussets)
These attributes will lessen the guide time and costs. Fabricated production makes certain a rapidly delivery.
This is specifically beneficial in an unexpected emergency circumstance, the place the existing gear rim is struggling from damage   
Features
External teeth 
Highest diameter: 16000 mm 
Toothed experience width: 1700 mm 
Highest module: 45 by hob 
Optimum module: 65 equipment finishing cutter
Interior teeth 
Highest Diameter: 6500 mm 
Highest module: 25.4 
Toothed encounter width: four hundred mm
Forging materials process 
Forging 
Ultimate rolling 
Furnace cooling 
Management on production 
Water quenching 
Hardness testing 
Tough machining 
Ultrasonic screening and dimensional inspection 
Ultimate inspection certification

Applications 
Our girth gears are utilized in the cement and minerals industries: 
Various types of horizontal mills 
Rotary dryers 
Rotary kilns 
Any other huge equipment ring software
Pinions
ZTIC Equipment invested in significant sources and reached several innovations with pinions. The proper combination of materials, hardness and finishing among pinion and gear is critical for a prolonged lifetime of the mounted equipment. We layout and manufacture pinions to match each and every customers need to have, no issue how CZPT the predicament may possibly be. 

Pinion design
bored
solid on shaft / integral
self aligned
spur, helical or double helical
Materialization
solid alloyed steel
by way of hardened, circumstance hardened or quenched and tempered
Spur, helical or double helical
carburized
induction
nitrided
Traits
equipment slicing with hobs
the gear high quality is checked by profile tester
tooth flank modification
– profile correction 
– guide correction (straight/barrel)
styles /ratios in accordance to ISO-DIN-A.G.M.A.
FEM/FEA simulation software
Specifications/Certificates

Applications 
Our pinions are used in the cement and minerals industries:
Ball – mills
ROD – mills
Semi Autogeneous Grind (SAG)
Rotary kilns/coolers/dryers
Advantages
One particular Source
First Tools Manufacture (OEM) Complex Drawings
Gearing complex experience for kilns and grinding mills
Point out of the artwork producing facilities and high quality
International revenue and service help
Rotary  Kiln Girth Gears
We are leading supplier the Kiln Girth Gears for the different crops as detailed below.
Sponge Iron Plants  50TPD 100TPD 300TPD350TPD,500TPD,1000TPD
Cement vegetation as per consumer need
Gears for phosphate mines, Alumina plant, kaolin-bentonite
Gear Chopping Capability:
100mm diameter to 16000mm diameter
10Module to 70Module
The Kiln girth gears are available mainly in bi-element, 4 parts, 8 parts or multi segments as per the need and suitability with the software of gear.
 
In the subject of grinding mill components, We provide mill heads,feed inlet,grinding roller,cement kiln using ring, casting gears, shaft block .Also we supply mill shell of welding buildings and fabrications.
 
Quality assurance paperwork
The subsequent reports are to be submitted to Top quality Assurance:
a. Chemistry report
b. Physical report
c. Warmth treatment method files
CITIC HMC  Q/HM 973.2-2007
Specification for Metal Castings for Grinding Mills
one five
d. Ultrasonic inspection report (prior to and after repairs)
e. Magnetic particle inspection report (prior to and soon after repairs)
f. Dimensional report
g. Weld mend maps
h. Weld procedures and Treatment qualification record
i. Welder qualification
j. Nondestructive tests inspector qualification

 
The technical demands of a large CZPT Equipment ring:
one) is pretreated ahead of normalizing surface area hardening therapy, the hardness ought to HB210 ~ 250 mechanical functionality are the ultimate strength Rb 690MPa, generate pressure Rs 490MPa, elongation D5 eleven%, reduction of location W twenty five% , affect toughness Ak 30J enamel induction hardened, hardness HRC50 ~ 55 effective hardened layer depth 3 ~ 5mm.
2) overall ultrasonic flaw detection, inner high quality should meet up with 2 specifications GB7233-87 regular requirements tooth and fillet magnetic particle inspection, quality should satisfy 2 demands GB/T9444-88 standards.
3) Observe the casting is not rounded R5 ~ R10.
4) Tooth chamfer at equally ends and 1 45b.5) by 2 and a fifty percent ring equipment tooth width of every ring CZPT together the edge of a whole ring made with higher strength bolts, blended with the tooth surface need to be at the base middle.
2 large ring equipment manufacturing method
2.1 of tough
Metal casting blank is offered by CITIC Heavy CZPT Co., Ltd. Hefty Forging plant, operate by GB11352-89 regular specifies requirements for modeling in accordance to the casting method, smelting, casting, hit boxes, cleaning, dressing castings. During inspection and acceptance by the drawings and Technical requirements for metal blank
Checks, in accordance JB/T6402-ninety two expectations issued right after acceptance
Down method.
two.2 roughing
Crossed by drawing and continue to be out allowance, alignment, link, processing equally inside of and outside the house the circle, combining confront milling, drilling and other procedures.
2.3 Exploration injury
Total ultrasonic flaw detection, inside good quality must meet the 2 demands of GB7233-87 expectations.
two.4 normalizing pretreatment
Semi-ring pairs normalizing and tempering remedy, offer a good organization for subsequent surface area hardening push drawings deformation of the fifty percent ring gear inspection after heat remedy.
two.5 Machining
Initial 2 and a half ring is created with substantial power bolts connecting the ring as a complete, the all round approach by drawing a circle Quannei Wai enamel and higher and lower finish, and then drawing and machining milling process needs.
2.6 Elimination of processing tension
The general ring annealed to eliminate anxiety.
2.7 overall ring floor hardening
IF alongside the alveolar tooth area induction hardening, hardness HRC50 ~ fifty five, efficient hardened layer depth 3 ~ 5mm.
two.8 Ultimate inspection
Initial, the detection frequency quenching, the hardness following tempering ring equipment cogging meets the needs of the drawings next, to detect no matter whether the greatest outer diameter bigger dimensions D6944 as the deformation 3mm, the mechanical correction required until finally qualified Thirdly, tooth and fillet magnetic particle inspection, top quality must meet up with 2 specifications GB/T9444-88 common needs Finally, in accordance to the drawings and complex requirements for last inspection.

Lubrication is an critical element to enhance the performance of worm gear transmission. The worm equipment motion generates a whole lot of warmth, which minimizes effectiveness. The power sent at a presented temperature will increase with the transmission performance. Suitable lubrication lowers friction and warmth, which increases performance.

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