GS42CrMo4 Mill Girth Gear And Rotary Kiln Gear For Cement Plant
Girth Gears: Rotary kiln Girth Gear,ball mill Girth Gear
Girth Gears offered find extensive application in different industry sectors including in sponge iron plants, steel & cement industry, mining industry, wind mills as well as in other industry sectors. These are made available in module range of 10 Module to 70 Module and in minimum diameters of 100 mm to 15000 mm. Further, these comprise maximum weight of 70 MT single pieces. Here the range of hardened & ground gear boxes/gears comprise Worm gear boxes, Helical / Double helical gears/gearboxes, Helical-Bevel gearboxes, Planetary Gearboxes and others.
Module Range: 10 Module to 70 Module.
Diameter : Min 100 mm to16000 mm.
Weight : Max 120 MT single piece.
Hardened & Ground Gear Boxes/Gears:
- Worm gear boxes
- Helical / Double helical gears/gearboxes
- Helical-Bevel gearboxes
- Planetary Gearboxes
- Hardened & Ground Helical- bevel gears & Spiral-bevels gears/gearboxes.
- Rack & Pinions
Ratings:
- Min 3 hp to Max 1400 hp
- Splash / Forced lubrication type
We provide girth gears in three different designs
Fabricated gears became more common in the past and are constructed with forged steel gear rim materials and electro welded body structure. The rings are manufactured from a whole block of high resistance alloy steel. After the rough machining of the ring, we carry out hardening and tempering heat treatment in order to improve the mechanical characteristic and therefore its relevant performance.
Avantages of fabricated girth gears
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The forged material structure excludes the risk of inclusions
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Structure defects like gas holes, micro shrinkage, pin holes, hot tears, sand and slag inclusions are avoided
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Hence, repair welding of the body structure and e.g. grinding of toothed areas is not required.
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The fabricated manufacturing procedure excludes the need for patterns and risers
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Rim material has higher hardness and higher strength than the material used for the underlying structure (i.e. web, gussets)
These features will reduce the lead time and costs. Fabricated manufacturing ensures a fast delivery.
This is especially beneficial in an emergency situation, where the existing gear rim is suffering from damage
Features
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External teeth
Maximum diameter: 16000 mm
Toothed face width: 1700 mm
Maximum module: 45 by hob
Maximum module: 65 gear finishing cutter
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Internal teeth
Maximum Diameter: 6500 mm
Maximum module: 25.4
Toothed face width: 400 mm
Forging material process
• Forging
• Final rolling
• Furnace cooling
• Control on production
• Water quenching
• Hardness testing
• Rough machining
• Ultrasonic testing and dimensional inspection
• Final inspection certification
Standards/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 large gear ring application
Pinions
ZTIC Gear invested in significant resources and achieved many innovations with pinions. The right combination of material, hardness and finishing between pinion and gear is crucial for a long lifetime of the installed equipment. We design and manufacture pinions to match every customers need, no matter how unique the situation might be.
Pinion design
- bored
- solid on shaft / integral
- self aligned
- spur, helical or double helical
Materialization
- forged alloyed steel
- through hardened, case hardened or quenched and tempered
- Spur, helical or double helical
- carburized
- induction
- nitrided
Characteristics
- gear cutting with hobs
- the gear quality is checked by profile tester
- tooth flank modification
- profile correction
- lead correction (straight/barrel)
- designs /ratios according to ISO-DIN-A.G.M.A.
- FEM/FEA simulation software
Standards/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
- One Source
- Original Equipment Manufacture (OEM) Technical Drawings
- Gearing technical expertise for kilns and grinding mills
- State of the art manufacturing facilities and quality
- Global sales and service support
Rotary Kiln Girth Gears
We are leading supplier the Kiln Girth Gears for the various plants as listed below.
- Sponge Iron Plants 50TPD 100TPD 300TPD350TPD,500TPD,1000TPD
- Cement plants as per customer requirement
- Gears for phosphate mines, Alumina plant, kaolin-bentonite
Gear Cutting Capacity:
- 100mm diameter to 16000mm diameter
- 10Module to 70Module
The Kiln girth gears are available mainly in bi-part, four parts, 8 parts or multi segments as per the requirement and suitability with the application of gear.
In the field of grinding mill components, We supply mill heads,feed inlet,grinding roller,cement kiln riding ring, casting gears, shaft block .Also we supply mill shell of welding structures and fabrications.
Quality assurance documents
The following reports are to be submitted to Quality Assurance:
a. Chemistry report
b. Physical report
c. Heat treatment documents
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Girth Gear
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(1)GS42CrMo4Alloy Steel (corporate proprietary standards)
HB 220~240
(2)semi-structured, Y-Spoke
(3)Helical
(4) reasonable sealing and alignment structure of alloy steel (corporate proprietary standards) |
(1) outer steel refining (R-H argon and vacuum treatment)
(2) proprietary cold mold hanging sand technology to ensure the casting, the teeth dense
(3) normalizing (proprietary technology) to ensure that the tooth surface hardness
After
(4)rough hobbing, release time, repair the joint surface, then fine roll
(5) proprietary homemade hob fine hobbing
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(1)castings mechanical properties and chemical composition (internal standard)
(2) roughing after sonic testing
(3)semi-finishing, finishing after ultrasonic testing and magnetic particle inspection
(4) tooth surface magnetic particle inspection, hardness test
(5)tooth tolerance check
(6) the factory assembly load test to check the accuracy of the size of gear |
Mill Girth Gear
FAQ
Q: Why we believe in luoyang zhongtai industries co., ltd:
A: 1. More than 30 years experience.
2.We are the leading professional supplier of mining machinery, construction machinery, machines casting and forged parts.
3. All products achieved ISO9901:2000 quality management certificate and CE, ROHS certificates.
Q:Delivery time:
A: Parts lead time 1-2months, machines 2-3months.
Q:Payment terms:
A: Accept payment type: T/T, L/C, Western union,Cash.
30% deposit when signed contract. Full payment paid before shipping.
Q: Quality warranty?
A: Guarantee time: one year for main machinery. If something wrong we will provide the technical advice and find solution immediately. For those wearing parts we guarantee high quality parts for long-term supply.
Q: After sales service?
A: We can supply technical guide for machines running test and parts maintenance if end user needs.
After Sales Service
ZTIC Heavy Industries is your business partner in the After Market.
ZTIC able to provide:
1. ENGINEERED SPARES - DESIGN AND MANUFACTURING
2. LARGE VOLUME STEEL AND IRON CASTING FOUNDARIES
3. HUGE MACHINE SHOP CAPABILITIES
4. TRAINING PROGRAMMES
5. PREVENTATIVE MAINTENANCE PROGRAMS
6. PREVETATIVE MAINTENANCE SERVICES
7. COMPREHENSIVE MAINTENANCE PROGRAMS
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