42CrMo4 Steel Sag Mill Girth Gear And Ball Mill Girth Gear Factory
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.
| Product Name | Steel girth spur gear |
| Weight | Max 120 MT single piece |
| Applications | industries |
| Module Range | 10 Module to 70 Module. |
| Diameter | Min 100 mm to16000 mm. |
| Weight | Max 120 MT single piece. |
| Gear Cutting Capacity | 100mm diameter to 16000mm diameter,10Module to 70Module |
| External teeth |
| Maximum diameter | 16000 mm |
| Toothed face width | 1700 mm |
| Maximum module | 45 by hob |
| Maximum module | 65 gear finishing cutter |
| Internal teeth |
| Maximum Diameter | 6500 mm |
| Maximum module | 25.4 |
| Toothed face width | 400 mm |
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
