china sales Cast Steel Girth Gear Factory with High Quality manufacturers

Item Description

Girth Gears: Rotary kiln Girth Gear,ball mill Girth Equipment
Girth Gears offered find extensive software in different sector sectors such as in sponge iron vegetation, steel & cement industry, mining industry, wind mills as nicely as in other industry sectors. These are created CZPT in module range of 10 Module to 70 Module and in least diameters of 100 mm to 15000 mm. Further, these comprise highest weight of 70 MT one pieces. Right here the variety of hardened & floor CZPT es/gears comprise Worm CZPT es, CZPT cal / Double CZPT cal gears/gearboxes, CZPT cal-Bevel gearboxes, Planetary Gearboxes and others.

ZTIC Gear Chopping CZPT s include:
Ø16m CNC Hobbing CZPT
Ø12m Gear Chopping CZPT (Switzerland)
Ø10m Hobbing CZPT (Germany)
Ø4m CNC CZPT CZPT Hobbing CZPT (Germany)
Ø1.6m Horizontal CHC Hobbing CZPT (Germany)
Ø5m CNC Profile Equipment Grinding CZPT (Germany)
Ø2.8m CNC Profile Gear Grinding CZPT (Germany)
Ø1.25m CNC Profile Equipment Grinding CZPT (Germany)
Ø1m CNC Profile Gear Grinding CZPT (Germany)
Ø0.8m CNC Profile Gear Grinding CZPT (Germany)
Computerized positioner
Module Assortment:  ten Module to 70 Module.
Diameter : Min a hundred mm to16000 mm.
Weight : Max 120 MT single piece.
Hardened & Ground Gear Containers/Gears:
Worm CZPT es
Helical / Double CZPT cal gears/gearboxes
Helical-Bevel gearboxes
Planetary Gearboxes
Hardened & Ground Helical- bevel gears & Spiral-bevels gears/gearboxes.
Rack & Pinions
Min 3 hp to  Max 1400 hp
Splash / Forced lubrication type
Ship Enquiry
With far more than a thousand girth gears offered over the entire world CITICIC Gear is a leading supplier in the cement and mineral industry. And as member of AGMA (American Equipment CZPT rs Affiliation), we do actively consider portion in defining the normal for gear rating calculations and services factors. 
We provide girth gears in a few different patterns
Fabricated steel
– forged ring
– rolled plate
Solid steel 
Ductile (Nodular) cast iron  
Fabricated gears grew to become far more common in the earlier and are constructed with solid steel gear rim components and electro welded body framework. The rings are manufactured from a entire block of substantial resistance alloy metal. Soon after the rough machining of the ring, we carry out hardening and tempering warmth treatment in purchase to improve the mechanical characteristic and as a result its related functionality.  
Avantages of fabricated girth gears
The solid substance construction excludes the danger of inclusions
Composition problems like gasoline holes, micro shrinkage, pin holes, very hot tears, sand and slag inclusions are prevented
That’s why, mend welding of the physique construction and e.g. grinding of toothed areas is not needed.
The fabricated manufacturing process excludes the require for patterns and risers
Rim materials has larger hardness and higher power than the materials employed for the fundamental framework (i.e. world wide web, gussets)
These characteristics will lessen the direct time and expenses. Fabricated producing makes certain a CZPT supply.
This is specifically advantageous in an unexpected emergency predicament, exactly where the current gear rim is struggling from damage   
External teeth 
Highest diameter: 16000 mm 
Toothed confront width: 1700 mm 
Greatest module: forty five by hob 
Highest module: 65 equipment finishing cutter
Internal teeth 
Maximum Diameter: 6500 mm 
Highest module: 25.4 
Toothed encounter width: four hundred mm
Forging materials process 
Ultimate rolling 
Furnace cooling 
Management on production 
Water quenching 
Hardness testing 
Rough machining 
Ultrasonic tests and dimensional inspection 
Final inspection certification

Our girth gears are used in the cement and minerals industries: 
Various sorts of horizontal mills 
Rotary dryers 
Rotary kilns 
Any other big gear ring software
ZTIC Gear invested in significant methods and accomplished numerous innovations with pinions. The right mixture of content, hardness and finishing between pinion and equipment is crucial for a CZPT lifetime of the put in gear. We design and style and manufacture pinions to match every single CZPT ers need to have, no matter how exclusive the scenario may well be. 

Pinion design
sound on shaft / integral
self aligned
spur, CZPT cal or double CZPT cal
forged alloyed steel
by way of hardened, scenario hardened or quenched and tempered
Spur, CZPT cal or double CZPT cal
equipment slicing with hobs
the equipment good quality is checked by profile tester
tooth flank modification
– profile correction 
– guide correction (straight/barrel)
types /ratios according to ISO-DIN-A.G.M.A.
FEM/FEA simulation application
Our pinions are utilized in the cement and minerals industries:
Ball – mills
ROD – mills
Semi CZPT geneous Grind (SAG)
Rotary kilns/coolers/dryers
One particular Resource
Authentic Equipment CZPT (OEM) CZPT nical Drawings
Gearing technological expertise for kilns and grinding mills
State of the art producing amenities and high quality
International sales and services assistance
Rotary  Kiln Girth Gears
We are leading supplier the Kiln Girth Gears for the CZPT crops as detailed underneath.
Sponge Iron Plants  50TPD 100TPD 300TPD350TPD,500TPD,1000TPD
Cement plants as per CZPT er requirement
Gears for phosphate mines, Alumina plant, kaolin-bentonite
Gear Slicing Capability:
100mm diameter to 16000mm diameter
10Module to 70Module
The Kiln girth gears are CZPT mainly in bi-portion, 4 elements, 8 parts or multi segments as for each the necessity and suitability with the software of gear.
In the area of grinding mill elements, 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.
High quality assurance documents
The pursuing reviews are to be submitted to High quality Assurance:
a. Chemistry report
b. Physical report
c. Heat treatment files
CITIC HMC  Q/HM 973.2-2007
Specification for Steel CZPT s for Grinding Mills
1 five
d. CZPT sonic inspection report (ahead of and following repairs)
e. CZPT ic particle inspection report (just before and right after repairs)
f. Dimensional report
g. Weld restore maps
h. Weld techniques and Procedure qualification document
i. Welder qualification
j. CZPT destructive tests inspector qualification

Merchandise Structural functions Processing measure Test articles
Girth Gear (1)GS42CrMo4Alloy Metal (company proprietary requirements)
HB 220~240
(2)semi-structured, Y-Spoke 
(4) sensible sealing and alignment construction of alloy metal (company proprietary requirements)
(1) outer metal refining (R-H argon and vacuum remedy) 
(2) proprietary cold mould hanging sand technologies to ensure the casting, the tooth dense 
(3) normalizing (proprietary technology) to ensure that the tooth floor hardness 
(4)tough hobbing, release time, mend the joint area, then fine roll 
(5) proprietary do-it-yourself hob wonderful hobbing
(1)castings mechanical properties and chemical composition (inside normal) 
(2) roughing after sonic testing 
(3)semi-finishing, ending after ultrasonic screening and magnetic particle inspection 
(4) tooth area magnetic particle inspection, hardness test 
(5)tooth tolerance check 
(6) the manufacturing unit assembly load take a look at to check out the accuracy of the dimension of gear

The technological specifications of a big CITICIC Equipment ring:
one) is pretreated before normalizing surface area hardening treatment, the hardness should HB210 ~ 250 mechanical efficiency are the final power Rb 690MPa, generate stress 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.
two) total ultrasonic flaw detection, inside high quality must satisfy two requirements GB7233-87 regular demands tooth and fillet magnetic particle inspection, high quality should satisfy two needs GB/T9444-88 expectations.
3) Notice the casting is not rounded R5 ~ R10.
four) Tooth chamfer at equally ends and 1 45b.5) by two and a half ring equipment tooth width of each ring coupling together the edge of a entire ring manufactured with substantial toughness bolts, blended with the tooth surface must be at the bottom heart.
2 big ring equipment production procedure
2.1 of tough
Metal casting blank is supplied by CITIC CZPT CZPT ry Co., Ltd. CZPT Forging plant, operate by GB11352-89 regular specifies demands for modeling according to the casting process, smelting, casting, strike boxes, cleansing, dressing castings. Throughout inspection and acceptance by the drawings and Technical demands for steel blank
Checks, according JB/T6402-ninety two requirements issued following acceptance
Down method.
two.2 roughing
Crossed by drawing and remain out allowance, alignment, relationship, processing each within and outside the circle, combining experience milling, drilling and other procedures.
two.3 Exploration injury
General ultrasonic flaw detection, inner high quality ought to meet the two demands of GB7233-87 expectations.
two.4 normalizing pretreatment
Semi-ring pairs normalizing and tempering treatment, provide a great firm for subsequent surface area hardening push drawings deformation of the fifty percent ring gear inspection following warmth remedy.
two.5 Machining
Initial two and a half ring is produced with high power bolts connecting the ring as a complete, the overall procedure by drawing a circle CZPT nei Wai tooth and higher and decrease end, and then drawing and machining milling procedure needs.
two.6 Elimination of processing tension
The total ring annealed to eliminate anxiety.
two.7 all round ring floor hardening
IF together the alveolar tooth surface area induction hardening, hardness HRC50 ~ fifty five, powerful hardened layer depth 3 ~ 5mm.
2.8 Final inspection
Initial, the detection frequency quenching, the hardness soon after tempering ring gear cogging satisfies the requirements of the drawings CZPT ly, to detect no matter whether the optimum outer diameter larger measurement D6944 as the deformation 3mm, the mechanical correction necessary right up until qualified Thirdly, tooth and fillet magnetic particle inspection, top quality must meet two needs GB/T9444-88 common requirements Lastly, in accordance to the drawings and technological demands for closing inspection.

Specified pitches and qualified prospects of the worm do not enable the worm equipment to generate the worm. This is useful when the software requirements to lock the output if the software is managing in the reverse path. When the helix angle is less than 5°, the worm is self-locking. When the helix angle is increased than 10°, the worm can be driven again. Worm and worm equipment assemblies must be mounted on vertical, non-intersecting shafts.
china  sales Cast Steel Girth Gear Factory with High Quality manufacturers