Custom Segment Large Diameter Rotating Cast Steel Mill Girth Gear
1. 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.
Cast Steel Mill Girth Gear
2. ZTIC Gear Cutting Machines include:
Ø16m CNC Hobbing MachineØ12m Gear Cutting Machine (Switzerland)Ø10m Hobbing Machine (Germany)Ø4m CNC High Speed Hobbing Machine (Germany)Ø1.6m Horizontal CHC Hobbing Machine (Germany)Ø5m CNC Profile Gear Grinding Machine (Germany)Ø2.8m CNC Profile Gear Grinding Machine (Germany)Ø1.25m CNC Profile Gear Grinding Machine (Germany)Ø1m CNC Profile Gear Grinding Machine (Germany)Ø0.8m CNC Profile Gear Grinding Machine (Germany)Automatic positioner
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/gear boxes Helical-Bevel gearboxes Planetary Gear boxes Hardened & Ground Helical- bevel gears & Spiral-bevels gears/gearboxes.Rack & Pinions
Ratings:
Min 3 hp to Max 1400 hp Splash / Forced lubrication type
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With more than 1000 girth gears sold over the world CITICIC Gear is a leading supplier in the cement and mineral industry. And as member of AGMA (American Gear Manufacturers Association), we do actively take part in defining the standard for gear rating calculations and service factors.
Cast Steel Mill Girth Gear
3. Product parameters of big ring for mill girth gear
| Item | Structural features | Processing measure | Test content |
| Girth Gear | (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 | (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 |
Cast Steel Mill Girth Gear
4. Quality assurance documents
The following reports are to be submitted to Quality Assurance:
a. Chemistry report
b. Physical report
c. Heat treatment documents
CITIC HMC Q/HM 973.2-2007 Specification for Steel Castings for Grinding Mills
d. Ultrasonic inspection report (before and after repairs)
e. Magnetic particle inspection report (before and after repairs)
f. Dimensional report
g. Weld repair maps
h. Weld procedures and Procedure qualification record
i. Welder qualification
j. Nondestructive testing inspector qualification
Cast Steel Mill Girth Gear
5. Gear Cutting Capacity:
100mm diameter to 16000mm diameter 10 Module 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.
Cast Steel Mill Girth Gear
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Custom Segment Rotating Cast Steel Mill Girth Gear Large Diameter Images
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