16m CNC Hobbing Machine Cutting Spur Rotary Kiln Girth Gear And Mill Girth Gear

CITIC IC Girth Gear Cutting Machines include:
* Ø16m CNC Hobbing Machine
* Ø12m 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/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
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. We provide girth gears in three different designs
* Fabricated steel
- forged ring
- rolled plate
* Cast steel
* Ductile (Nodular) cast iron
 

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
* The forged material structure excludes the risk of inclusions
* Structure defects like gas holes, micro shrinkage, pin holes, hot tears, sand and slag inclusions are avoided
* Hence, repair welding of the body structure and e.g. grinding of toothed areas is not required.
* The fabricated manufacturing procedure excludes the need for patterns and risers
* 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
* External teeth
Maximum diameter: 11200 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

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
CITICIC 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
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
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.