Merchandise Description
Girth Gears: Rotary kiln Girth Gear,ball mill Girth Gear
Girth Gears offered locate comprehensive software in various business sectors like in sponge iron vegetation, steel & cement industry, mining industry, wind mills as well as in other business sectors. These are made obtainable in module variety of ten Module to 70 Module and in minimal diameters of one hundred mm to 15000 mm. More, these comprise maximum excess weight of 70 MT one items. Here the assortment of hardened & ground equipment boxes/gears comprise Worm equipment boxes, Helical / Double helical gears/gearboxes, Helical-Bevel gearboxes, Planetary Gearboxes and other folks.
ZTIC Gear Slicing Machines consist of:
Ø16m CNC Hobbing Equipment
Ø12m Gear Reducing Machine (Switzerland)
Ø10m Hobbing Device (Germany)
Ø4m CNC Substantial Pace Hobbing Machine (Germany)
Ø1.6m Horizontal CHC Hobbing Machine (Germany)
Ø5m CNC Profile Equipment Grinding Equipment (Germany)
Ø2.8m CNC Profile Equipment Grinding Device (Germany)
Ø1.25m CNC Profile Gear Grinding Equipment (Germany)
Ø1m CNC Profile Gear Grinding Device (Germany)
Ø0.8m CNC Profile Equipment Grinding Machine (Germany)
Computerized positioner
Module Range: ten Module to 70 Module.
Diameter : Min a hundred mm to16000 mm.
Weight : Max 120 MT solitary piece.
Hardened & Ground Gear Boxes/Gears:
Worm gear packing 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 / Pressured lubrication type
Send Enquiry
With much more than a thousand girth gears bought more than the planet CZPT Equipment is a leading provider in the cement and mineral sector. And as member of AGMA (American Gear Makers Association), we do actively just take portion in defining the normal for equipment score calculations and service elements.
We provide girth gears in 3 diverse designs
Fabricated steel
– cast ring
– rolled plate
Cast steel
Ductile (Nodular) forged iron
Fabricated gears grew to become far more typical in the past and are created with solid steel gear rim supplies and electro welded body composition. The rings are produced from a entire block of substantial resistance alloy steel. Following the tough machining of the ring, we carry out hardening and tempering heat treatment in get to improve the mechanical characteristic and for that reason its relevant performance.
Avantages of fabricated girth gears
The solid materials composition excludes the risk of inclusions
Composition defects like fuel holes, CZPT shrinkage, pin holes, hot tears, sand and slag inclusions are avoided
That’s why, fix welding of the entire body structure and e.g. grinding of toothed locations is not required.
The fabricated producing process excludes the need to have for patterns and risers
Rim content has larger hardness and increased toughness than the content utilized for the underlying framework (i.e. net, gussets)
These characteristics will lessen the lead time and expenses. Fabricated producing ensures a rapidly delivery.
This is specifically useful in an unexpected emergency situation, exactly where the current equipment rim is struggling from damage
Functions
External teeth
Greatest diameter: 16000 mm
Toothed confront width: 1700 mm
Highest module: forty five by hob
Highest module: 65 gear finishing cutter
Interior teeth
Greatest Diameter: 6500 mm
Optimum module: 25.4
Toothed face width: 400 mm
Forging content process
Forging
Final rolling
Furnace cooling
Handle on production
Drinking water quenching
Hardness testing
Tough machining
Ultrasonic screening and dimensional inspection
Closing inspection certification
Requirements/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 huge equipment ring application
Pinions
ZTIC Equipment invested in significant resources and attained many innovations with pinions. The correct blend of material, hardness and ending among pinion and gear is essential for a lengthy life time of the installed tools. We layout and manufacture pinions to match every buyers need, no make a difference how CZPT the scenario may possibly be.
Pinion design
bored
reliable on shaft / integral
self aligned
spur, helical or double helical
Materialization
solid alloyed metal
through hardened, situation hardened or quenched and tempered
Spur, helical or double helical
carburized
induction
nitrided
Traits
equipment slicing with hobs
the equipment quality is checked by profile tester
tooth flank modification
– profile correction
– direct correction (straight/barrel)
types /ratios in accordance to ISO-DIN-A.G.M.A.
FEM/FEA simulation application
Requirements/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
1 Resource
First Products Manufacture (OEM) Specialized Drawings
Gearing technological experience for kilns and grinding mills
Condition of the artwork producing services and top quality
Global revenue and support assistance
Rotary Kiln Girth Gears
We are leading provider the Kiln Girth Gears for the a variety of crops as outlined under.
Sponge Iron Plants 50TPD 100TPD 300TPD350TPD,500TPD,1000TPD
Cement plants as per consumer requirement
Gears for phosphate mines, Alumina plant, kaolin-bentonite
Gear Chopping Capacity:
100mm diameter to 16000mm diameter
10Module to 70Module
The Kiln girth gears are accessible mainly in bi-part, 4 parts, 8 components or multi segments as per the need and suitability with the software of gear.
In the subject of grinding mill factors, We supply mill heads,feed inlet,grinding roller,cement kiln driving ring, casting gears, shaft block .Also we source mill shell of welding structures and fabrications.
Quality assurance paperwork
The following studies are to be submitted to Top quality Assurance:
a. Chemistry report
b. Actual physical report
c. Warmth therapy files
CITIC HMC Q/HM 973.2-2007
Specification for Steel Castings for Grinding Mills
one 5
d. Ultrasonic inspection report (before and after repairs)
e. Magnetic particle inspection report (prior to and after repairs)
f. Dimensional report
g. Weld restore maps
h. Weld processes and Method qualification record
i. Welder qualification
j. Nondestructive tests inspector qualification
The technical needs of a huge CZPT Gear ring:
one) is pretreated just before normalizing surface hardening treatment method, the hardness ought to HB210 ~ 250 mechanical functionality are the ultimate strength Rb 690MPa, produce anxiety Rs 490MPa, elongation D5 eleven%, reduction of region W 25% , effect toughness Ak 30J teeth induction hardened, hardness HRC50 ~ fifty five powerful hardened layer depth 3 ~ 5mm.
two) overall ultrasonic flaw detection, inner quality ought to satisfy 2 demands GB7233-87 common demands tooth and fillet magnetic particle inspection, top quality should meet up with 2 demands GB/T9444-88 specifications.
three) Notice the casting is not rounded R5 ~ R10.
4) Tooth chamfer at the two ends and 1 45b.5) by 2 and a fifty percent ring equipment tooth width of every ring CZPT together the edge of a entire ring manufactured with large toughness bolts, merged with the tooth floor need to be at the base middle.
2 big ring gear producing process
two.1 of rough
Metal casting blank is presented by CITIC Large CZPT Co., Ltd. Large Forging plant, operate by GB11352-89 normal specifies specifications for modeling in accordance to the casting process, smelting, casting, hit bins, cleaning, dressing castings. For the duration of inspection and acceptance by the drawings and Technical needs for steel blank
Checks, according JB/T6402-ninety two specifications issued right after acceptance
Down process.
2.2 roughing
Crossed by drawing and keep out allowance, alignment, connection, processing equally within and exterior the circle, combining encounter milling, drilling and other procedures.
two.3 Exploration injuries
Total ultrasonic flaw detection, inside good quality ought to fulfill the 2 requirements of GB7233-87 expectations.
two.4 normalizing pretreatment
Semi-ring pairs normalizing and tempering therapy, provide a very good firm for subsequent surface area hardening press drawings deformation of the 50 % ring equipment inspection following warmth remedy.
2.5 Machining
1st 2 and a 50 % ring is produced with high strength bolts connecting the ring as a total, the all round approach by drawing a circle Quannei Wai tooth and upper and decrease end, and then drawing and machining milling approach demands.
two.6 Elimination of processing stress
The total ring annealed to eradicate stress.
2.7 overall ring surface area hardening
IF along the alveolar tooth surface induction hardening, hardness HRC50 ~ fifty five, efficient hardened layer depth 3 ~ 5mm.
2.8 Last inspection
1st, the detection frequency quenching, the hardness following tempering ring gear cogging meets the requirements of the drawings next, to detect whether or not the optimum outer diameter greater size D6944 as the deformation 3mm, the mechanical correction required until finally qualified Thirdly, tooth and fillet magnetic particle inspection, top quality must satisfy 2 requirements GB/T9444-88 standard demands Lastly, in accordance to the drawings and technological specifications for ultimate inspection.
Specified pitches and prospects of the worm do not allow the worm equipment to drive the worm. This is beneficial when the software needs to lock the output if the software is working in the opposite course. When the helix angle is significantly less than 5°, the worm is self-locking. When the helix angle is higher than 10°, the worm can be driven back again. Worm and worm gear assemblies need to be mounted on vertical, non-intersecting shafts.
