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.
gear material
42CRMO STEEL DATA
CHEMICAL LIST
C : 0.38-0.45%
Si: 0.17-0.37%
Mn: 0.50-0.80%
S : Allow residual content <0.035%
P : Allow residual content <0.035%
Cr: 0.90-1.20%
Ni: Allow residual content <0.030% Cu: Allow residual content
<0.030%
Mo: 0.15-0.25%
MECHANICAL DATA
Tensile Strength σb (MPa): >1080(110)
Yield point σs (MPa): >930(95)
Elongation σ5 (%): >12
Reduction of area ψ (%): >45 Akv (J): Impact absorbing energy
Akv(J): >63
Impact toughness value αkv (J/cm2): >78(8)
Hardness: <217HB
Sample size: The blank size of the sample is 25mm
PHYSICAL DATA
Critical point temperature (approximate value): Ac1=730℃, Ac3=800℃,
Ms=310℃
Linear expansion coefficient: temperature: 20~100℃/20~200℃/20~300℃
/20 ~400℃/20~500℃ /20~600℃
linear expansivity:
11.1x10K/12.1x10K/12.9x10K/13.5x10K/13.9x10K14.1x10K
ZTIC 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
