Merchandise Description

Item Description

Girth Gears: Rotary kiln Girth Gear,ball mill Girth Gear
Girth Gears offered locate extensive application in diverse sector sectors which includes in sponge iron plants, steel & cement sector, mining market, wind mills as well as in other business sectors. These are made accessible in module variety of ten Module to 70 Module and in minimal diameters of 100 mm to 15000 mm. Additional, these comprise optimum weight of 70 MT one pieces. Here the variety of hardened & ground equipment boxes/gears comprise Worm equipment packing containers, Helical / Double helical gears/gearboxes, Helical-Bevel gearboxes, Planetary Gearboxes and other individuals.

ZTIC Gear Cutting Machines contain:
Ø16m CNC Hobbing Machine
Ø12m Equipment Reducing Equipment (Switzerland)
Ø10m Hobbing Device (Germany)
Ø4m CNC High Speed Hobbing Machine (Germany)
Ø1.6m Horizontal CHC Hobbing Device (Germany)
Ø5m CNC Profile Gear Grinding Machine (Germany)
Ø2.8m CNC Profile Equipment Grinding Device (Germany)
Ø1.25m CNC Profile Gear Grinding Device (Germany)
Ø1m CNC Profile Equipment Grinding Equipment (Germany)
Ø0.8m CNC Profile Gear Grinding Device (Germany)
Automatic positioner
Module Range:  10 Module to 70 Module.
Diameter : Min a hundred mm to16000 mm.
Weight : Max a hundred and twenty MT solitary piece.
Hardened & Ground Gear Boxes/Gears:
Worm gear bins
Helical / Double helical gears/gearboxes
Helical-Bevel gearboxes
Planetary Gearboxes
Hardened & Ground Helical- CZPT & Spiral-bevels gears/gearboxes.
Rack & Pinions
Scores:
Min 3 hp to  Max 1400 hp
Splash / Compelled lubrication type
Send Enquiry
With much more than 1000 girth gears offered in excess of the world CZPT Gear is a leading provider in the cement and mineral sector. And as member of AGMA (American Equipment Manufacturers Affiliation), we do actively get portion in defining the standard for gear score calculations and services factors. 
We supply girth gears in 3 different styles
Fabricated steel
– cast ring
– rolled plate
Forged steel 
Ductile (Nodular) forged iron  
Fabricated gears grew to become a lot more widespread in the earlier and are built with solid metal equipment rim materials and electro welded body framework. The rings are created from a whole block of high resistance alloy metal. Soon after the tough machining of the ring, we carry out hardening and tempering warmth remedy in buy to enhance the mechanical attribute and as a result its pertinent performance.  
Avantages of fabricated girth gears
The forged content composition excludes the risk of inclusions
Composition defects like gas holes, CZPT shrinkage, pin holes, hot tears, sand and slag inclusions are prevented
Consequently, mend welding of the physique framework and e.g. grinding of toothed areas is not required.
The fabricated production treatment excludes the require for patterns and risers
Rim substance has larger hardness and higher strength than the material utilised for the underlying structure (i.e. web, gussets)
These features will reduce the guide time and costs. Fabricated manufacturing ensures a rapidly delivery.
This is especially advantageous in an crisis scenario, exactly where the current equipment rim is struggling from damage   
Attributes
External teeth 
Maximum diameter: 16000 mm 
Toothed face width: 1700 mm 
Highest module: forty five by hob 
Highest module: sixty five gear ending cutter
Inside teeth 
Greatest Diameter: 6500 mm 
Optimum module: 25.4 
Toothed face width: 400 mm
Forging materials process 
Forging 
Final rolling 
Furnace cooling 
Manage 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: 
Numerous kinds of horizontal mills 
Rotary dryers 
Rotary kilns 
Any other huge gear ring software

 
Quality assurance files
The pursuing reviews are to be submitted to Top quality Assurance:
a. Chemistry report
b. Actual physical report
c. Heat remedy files
CITIC HMC  Q/HM 973.2-2007
Specification for Steel Castings for Grinding Mills
one 5
d. Ultrasonic inspection report (before and soon after repairs)
e. Magnetic particle inspection report (ahead of and right after repairs)
f. Dimensional report
g. Weld fix maps
h. Weld methods and Procedure qualification file
i. Welder qualification
j. Nondestructive tests inspector qualification

 
The technological requirements of a massive CZPT Gear ring:
1) is pretreated ahead of normalizing floor hardening treatment, the hardness must HB210 ~ 250 mechanical efficiency are the supreme power Rb 690MPa, produce tension Rs 490MPa, elongation D5 eleven%, reduction of spot W twenty five% , influence toughness Ak 30J teeth induction hardened, hardness HRC50 ~ 55 successful hardened layer depth 3 ~ 5mm.
two) overall ultrasonic flaw detection, inner top quality need to satisfy 2 demands GB7233-87 common requirements tooth and fillet magnetic particle inspection, good quality need to satisfy 2 demands GB/T9444-88 standards.
3) Observe the casting is not rounded R5 ~ R10.
4) Tooth chamfer at both ends and 1 45b.5) by 2 and a fifty percent ring gear tooth width of each and every ring CZPT together the edge of a entire ring produced with substantial power bolts, merged with the tooth floor have to be at the base middle.
2 huge ring gear manufacturing process
two.1 of tough
Metal casting blank is supplied by CITIC Large CZPT Co., Ltd. Large Forging plant, run by GB11352-89 regular specifies demands for modeling in accordance to the casting process, smelting, casting, hit bins, cleansing, dressing castings. During inspection and acceptance by the drawings and Technical requirements for metal blank
Checks, according JB/T6402-92 specifications issued following acceptance
Down procedure.
2.2 roughing
Crossed by drawing and remain out allowance, alignment, relationship, processing each inside and outdoors the circle, combining encounter milling, drilling and other procedures.
two.3 Exploration injury
Total ultrasonic flaw detection, interior high quality should meet up with the 2 demands of GB7233-87 standards.
two.4 normalizing pretreatment
Semi-ring pairs normalizing and tempering therapy, supply a good business for subsequent surface area hardening push drawings deformation of the half ring gear inspection following warmth treatment method.
2.5 Machining
1st 2 and a 50 percent ring is produced with high toughness bolts connecting the ring as a complete, the all round method by drawing a circle Quannei Wai tooth and higher and reduced end, and then drawing and machining milling procedure demands.
2.6 Elimination of processing pressure
The overall ring annealed to eradicate stress.
two.7 overall ring area hardening
IF along the alveolar tooth floor induction hardening, hardness HRC50 ~ 55, effective hardened layer depth 3 ~ 5mm.
2.8 Last inspection
Initial, the detection frequency quenching, the hardness soon after tempering ring gear cogging satisfies the requirements of the drawings secondly, to detect whether or not the optimum outer diameter bigger size D6944 as the deformation 3mm, the mechanical correction required until finally certified Thirdly, tooth and fillet magnetic particle inspection, high quality ought to meet up with 2 specifications GB/T9444-88 common requirements Lastly, in accordance to the drawings and specialized specifications for ultimate inspection.
 

Certifications

Company Profile

Our Benefits

FAQ

Q: Why we believe in HangZhou CZPT industries co., ltd:
A: 1. Much more than 30 many years encounter.
     2.We are the leading professional supplier of mining machinery, design equipment, devices casting and solid      parts
     3. All items reached ISO9901:2000 good quality management certification and CE, ROHS certificates.
 Q:Supply time
A: elements direct time 1-2months, devices 2-3months.
 Q:Payment terms
A: Settle for payment variety: T/T, L/C, Western union,Funds.
30% deposit when signed contract. Entire payment compensated before shipping
 Q: High quality warranty?
A: assure time: 1 calendar year for main equipment. If some thing improper we will offer the technical advice and find answer immediately. For these putting on areas we assure substantial good quality parts for long-phrase provide.
 Q: After sales services?
A: we can provide technical CZPT for devices working take a look at and areas upkeep if end person wants.

After Income Provider

ZTIC Hefty Industries is your enterprise associate in the Right after Marketplace.
ZTIC  CZPT to supply:
one.    ENGINEERED SPARES –  Design and style AND Manufacturing
2.    Huge Volume Metal AND IRON CASTING FOUNDARIES
three.    Large Device Shop Abilities
4.    Instruction PROGRAMMES
5.    PREVENTATIVE Maintenance Plans
6.    PREVETATIVE Servicing Services
7.    Extensive Upkeep Plans
ZTIC’s Area Support Engineers are skilled exclusively in the CITIC manufacturer group goods but are able of undertaking the servicing of other OEM manufacturers.
Our specialists are geared up with the most advanced technological diagnostic equipment offered to problems shoot your gear to optimise efficiency and minimise down time.
ZTIC also has an substantial ability in providing all you consumable and electrical/ mechanical spare portion needs.
 
 

Ep’s merchandise range only contains bronze worm gears. The cause is simple, bronze ensures the ideal sliding and dry running homes when compared to other resources. The aluminium articles also ensures substantial chemical resistance. Worm gears are perfect for steady procedure at large speed and torque.