Solution Description
Girth Gears: Rotary kiln Girth Gear,ball mill Girth Gear
Girth Gears offered uncover substantial application in different sector sectors which includes in sponge iron plants, steel & cement business, mining market, wind mills as properly as in other business sectors. These are made offered in module range of 10 Module to 70 Module and in bare minimum diameters of a hundred mm to 15000 mm. Additional, these comprise highest excess weight of 70 MT solitary items. Right here the variety of hardened & floor gear packing containers/gears comprise Worm equipment boxes, Helical / Double helical gears/gearboxes, Helical-Bevel gearboxes, Planetary Gearboxes and other folks.
ZTIC Gear Cutting Machines incorporate:
Ø16m CNC Hobbing Device
Ø12m Gear Reducing Device (Switzerland)
Ø10m Hobbing Device (Germany)
Ø4m CNC Large Pace Hobbing Device (Germany)
Ø1.6m Horizontal CHC Hobbing Device (Germany)
Ø5m CNC Profile Gear Grinding Machine (Germany)
Ø2.8m CNC Profile Equipment Grinding Equipment (Germany)
Ø1.25m CNC Profile Equipment Grinding Equipment (Germany)
Ø1m CNC Profile Equipment Grinding Equipment (Germany)
Ø0.8m CNC Profile Gear Grinding Device (Germany)
Computerized positioner
Module Variety: ten Module to 70 Module.
Diameter : Min one hundred mm to16000 mm.
Weight : Max one hundred twenty MT one piece.
Hardened & Floor Equipment Containers/Gears:
Worm equipment containers
Helical / Double helical gears/gearboxes
Helical-Bevel gearboxes
Planetary Gearboxes
Hardened & Ground Helical- CZPT & Spiral-bevels gears/gearboxes.
Rack & Pinions
Rankings:
Min 3 hp to Max 1400 hp
Splash / Pressured lubrication type
Send out Enquiry
With far more than one thousand girth gears sold more than the globe CZPT Gear is a leading supplier in the cement and mineral market. And as member of AGMA (American Gear Companies Affiliation), we do actively consider component in defining the regular for gear score calculations and provider variables.
We provide girth gears in 3 various designs
Fabricated steel
– solid ring
– rolled plate
Forged steel
Ductile (Nodular) cast iron
Fabricated gears became a lot more widespread in the earlier and are constructed with solid metal equipment rim materials and electro welded entire body framework. The rings are made from a whole block of substantial resistance alloy steel. Right after the tough machining of the ring, we have out hardening and tempering heat treatment method in purchase to increase the mechanical attribute and for that reason its pertinent overall performance.
Avantages of fabricated girth gears
The cast materials structure excludes the chance of inclusions
Structure problems like gas holes, CZPT shrinkage, pin holes, scorching tears, sand and slag inclusions are prevented
That’s why, repair welding of the entire body composition and e.g. grinding of toothed regions is not essential.
The fabricated production procedure excludes the need for patterns and risers
Rim materials has larger hardness and increased power than the substance employed for the underlying structure (i.e. net, gussets)
These characteristics will reduce the direct time and fees. Fabricated production ensures a quickly supply.
This is specially useful in an crisis situation, where the current equipment rim is suffering from damage
Characteristics
Exterior teeth
Highest diameter: 16000 mm
Toothed face width: 1700 mm
Optimum module: 45 by hob
Optimum module: sixty five gear ending cutter
Inner teeth
Greatest Diameter: 6500 mm
Maximum module: 25.4
Toothed encounter width: 400 mm
Forging content process
Forging
Last rolling
Furnace cooling
Manage on production
Drinking water quenching
Hardness testing
Rough machining
Ultrasonic screening and dimensional inspection
Ultimate inspection certification
Requirements/Certificates
UNI EN ISO
AWS
ASTM
ASME
DIN
Applications
Our girth gears are used in the cement and minerals industries:
A variety of types of horizontal mills
Rotary dryers
Rotary kilns
Any other huge equipment ring application
Pinions
ZTIC Equipment invested in significant assets and achieved numerous improvements with pinions. The proper mix of content, hardness and ending among pinion and equipment is essential for a prolonged life span of the put in products. We design and style and manufacture pinions to match each consumers need, no matter how CZPT the predicament may possibly be.
Pinion design
bored
sound on shaft / integral
self aligned
spur, helical or double helical
Materialization
solid alloyed steel
by means of hardened, circumstance hardened or quenched and tempered
Spur, helical or double helical
carburized
induction
nitrided
Characteristics
equipment slicing with hobs
the gear quality is checked by profile tester
tooth flank modification
– profile correction
– direct correction (straight/barrel)
types /ratios according to ISO-DIN-A.G.M.A.
FEM/FEA simulation software
Specifications/Certificates
UNI EN ISO
AWS
ASTM
ASME
DIN
Applications
Our pinions are utilized in the cement and minerals industries:
Ball – mills
ROD – mills
Semi Autogeneous Grind (SAG)
Rotary kilns/coolers/dryers
Benefits
A single Source
Original Equipment Manufacture (OEM) Complex Drawings
Gearing technological skills for kilns and grinding mills
State of the artwork production amenities and top quality
International revenue and provider help
Rotary Kiln Girth Gears
We are major provider the Kiln Girth Gears for the numerous crops as listed below.
Sponge Iron Plants 50TPD 100TPD 300TPD350TPD,500TPD,1000TPD
Cement crops as for every customer necessity
Gears for phosphate mines, Alumina plant, kaolin-bentonite
Gear Chopping Potential:
100mm diameter to 16000mm diameter
10Module to 70Module
The Kiln girth gears are offered mostly in bi-part, 4 areas, 8 elements or multi segments as for each the need and suitability with the application of equipment.
In the field of grinding mill parts, We supply mill heads,feed inlet,grinding roller,cement kiln driving ring, casting gears, shaft block .Also we provide mill shell of welding structures and fabrications.
High quality assurance documents
The adhering to reports are to be submitted to Good quality Assurance:
a. Chemistry report
b. Actual physical report
c. Warmth treatment method documents
CITIC HMC Q/HM 973.2-2007
Specification for Steel Castings for Grinding Mills
1 5
d. Ultrasonic inspection report (before and after repairs)
e. Magnetic particle inspection report (just before and following repairs)
f. Dimensional report
g. Weld restore maps
h. Weld procedures and Method qualification document
i. Welder qualification
j. Nondestructive tests inspector qualification
The complex demands of a large CZPT Gear ring:
one) is pretreated before normalizing surface hardening treatment, the hardness ought to HB210 ~ 250 mechanical efficiency are the ultimate power Rb 690MPa, produce anxiety Rs 490MPa, elongation D5 11%, reduction of area W 25% , affect toughness Ak 30J enamel induction hardened, hardness HRC50 ~ fifty five successful hardened layer depth 3 ~ 5mm.
two) overall ultrasonic flaw detection, internal quality must meet up with 2 specifications GB7233-87 regular requirements tooth and fillet magnetic particle inspection, quality should meet 2 demands GB/T9444-88 specifications.
3) Notice the casting is not rounded R5 ~ R10.
4) Tooth chamfer at the two finishes and 1 45b.5) by 2 and a 50 percent ring equipment tooth width of each ring CZPT along the edge of a whole ring made with substantial strength bolts, blended with the tooth surface have to be at the bottom center.
two large ring gear producing approach
two.1 of tough
Metal casting blank is offered by CITIC Hefty CZPT Co., Ltd. Hefty Forging plant, operate by GB11352-89 regular specifies specifications for modeling according to the casting procedure, smelting, casting, hit packing containers, cleaning, dressing castings. In the course of inspection and acceptance by the drawings and Technical demands for steel blank
Checks, according JB/T6402-ninety two standards issued following acceptance
Down treatment.
2.2 roughing
Crossed by drawing and keep out allowance, alignment, link, processing both inside and outside the circle, combining encounter milling, drilling and other processes.
two.3 Exploration damage
General ultrasonic flaw detection, internal high quality must meet the 2 demands of GB7233-87 specifications.
two.4 normalizing pretreatment
Semi-ring pairs normalizing and tempering therapy, provide a excellent firm for subsequent area hardening press drawings deformation of the half ring equipment inspection soon after heat therapy.
2.5 Machining
1st 2 and a 50 percent ring is manufactured with higher energy bolts connecting the ring as a whole, the total approach by drawing a circle Quannei Wai teeth and higher and reduce end, and then drawing and machining milling approach requirements.
two.6 Elimination of processing anxiety
The total ring annealed to remove anxiety.
2.7 overall ring floor hardening
IF along the alveolar tooth floor induction hardening, hardness HRC50 ~ fifty five, effective hardened layer depth 3 ~ 5mm.
2.8 Closing inspection
First, the detection frequency quenching, the hardness right after tempering ring gear cogging fulfills the specifications of the drawings secondly, to detect regardless of whether the maximum outer diameter larger size D6944 as the deformation 3mm, the mechanical correction essential till experienced Thirdly, tooth and fillet magnetic particle inspection, top quality need to satisfy 2 demands GB/T9444-88 common demands Last but not least, in accordance to the drawings and technological demands for closing inspection.
Worm gears are appropriate angle drives that give big equipment ratios with reasonably quick centre-to-heart distances from 1/4″ to 11″. When appropriately put in and lubricated, they serve as the quietest, smoothest-managing equipment type. Because worm gear drives can accomplish higher gear ratios, maximum reduction can be accomplished in a scaled-down area than many other kinds of equipment drives. The worm and worm equipment run at a 90° angle on non-intersecting axes.
