1. Reduction Gear Box 2. Pinion Gear Box & SPINDLES 3. Speed Increasers & ADAPTER 4. Reduction Cum
Utilizing more than 25 years of engineering expertise, we designs and manufactures high quality, long lasting gearboxes for hot steel rolling mill industry. Each gearbox is customized to suit our customers’ specifications.
Our manufactured rolling mill gearboxes offer complete reliability, delivering powers from 20 H.P. up to 5000 H.P. – we can also assist with gearbox installation and commissioning.
In addition to brand new rolling mill gearboxes designed for your exact operational process and duty cycle, we also engineer drop-in gearboxes to replace older units whilst still maintaining the same space envelope. Our drop in replacement gearboxes can accommodate significant increases in power handling capabilities to upgrade the capabilities of the mill itself.
Reduction Gear Box
Reduction gearboxes are used to reduce an input speed to a slower output speed and more output torque. It is a wheel work consisting of a connected set of rotating gears by which power is transmitted or motion or torue is changed. We can manufacture and supply single stage, double stage or multistage gearboxes having single and multiple outputs as required.
From Low Speed to High Speed, technicalities of our Reduction Gearboxes are:
| Normal Input
Load Range |
From 50 HP upto 5000 HP. Drives |
| Gear Tpye |
Spur. Single &Double Helical Gears, Bevel Gears, Worm Gear Box upto 2500mm Dia |
Apart From Rolling Mill Gear Boxes, We also manufacture the gear boxes according to the customer requirement, if relevent data is provided.
Pinion Gear Box
Pinion gearboxes are used to reduce an input speed to a slower output speed. It is a wheel work consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed
We are manufacture and supply double and triple output shafts are technicalities of our Pinion Gear Boxes are:
| Casing /Housing /
Structure Material |
Steel Fabricated /Steel Casting |
| Gear Type | Spur, Single & Double Helical Gears upto 2500mm Dia |
| Normal Input
Load Range |
From 50 HP upto 5000 HP. Drives |
Speed Increasers
A Speed Increaser is generally installed in Bar Mill in between intermediate Mill Stands to increase the output speed of the rolled product.
We are manufacture and supply double and triple output shafts are technicalities of Pinion Gear Boxes are:
| Casing / Housing /
Structure Material |
Steel Fabricated |
Reduction Cum Pinion Gear Box
A reduction gear box is used to reduce an input speed to a slower output speed and more output torque. It is a wheel work consisting of a connected set of rotating gears by which power is transmitted or motion or torque is changed. We can manufacture and supply stage, double stage or multistage gear boxes having single outputs as required.
From Low Speed to High Speed, technicalities of our Reduction Gearboxes are:-
| Casing / Housing /Structure Material | Steel Fabricated |
| Gear Material | Forged and Forged blank EN-9, EN-19, EN-24 Steel |
| Gear Type | Spur, Single & Double Helical Gears upto 2500mm Dia |
| Normal Input Load Range | From 200 HP upto 2000 HP. Drives |
| Maximum Peak Load | 6000 HP. |
| Size Range | 150mm PCD upto 750mm PCD |
| Speed | 50 RPM to 1500 RPM |
| All Shafts Material | Forged Class – IV |
| Anchor / Foundation Bolts | Carbon Steel |
Key Features of Various Gear Boxes Manufactured by SMT are: –
- Utilizing the latest design and manufacturing techniques to build cost effective rolling mill gear systems which work to your exact process requirements.
- Rolling mill drives typically use double helical gears which are either through hardened or carburized depending on our customers’ application and duty cycle to give optimum gear and bearing load capacity in limited space.
- Robust gears and gear case optimized for ultimate strength and reliability.
- Manufactured using the highest quality materials and only approved brand bearings.
- Features such as lubrication oil supply, condition monitoring, cooling systems, base plates for ease of installation as well as input and output drive couplings are standard part of the manufacturing.
- On-site commissioning and installation assistance from highly qualified technical service engineers.
- Gear boxes are designed as per ASTM / DIN / Indian standards
- Heavy duty and sturdy design of gear box and gears which is suitable to bear overloads
- Welding tested by non-destructive weld test.
- Large surface area provided for heat dissipation
- Air breather provided for pressure equalization
- Gears are Ultrasonic Tested & duly hardened ground
- Rated torque, rated speed, torsional stiffness, and backlash are some of the points considered while designing a gear box
- All Pitches of the gears are precisely checked and trialed
- Load capacity of gear sets is calculated at contact and root bending stress in accordance with standard ISO pattern
- Gear Box casing is duly stress relieved to eliminate the stresses induced in welding or fabrication processes
- Inspection window at various levels is provided for proper viewing of gears inside the gear box
- Vent Pipes are provided for release of heat and oil from inside the Gear Box
- 72 Hour Non-stop trial of gear box is done on various speeds before dispatch
- Vibration, Voice, heating, alignment and lapping levels are thoroughly checked on trial before dispatch
We do everything it takes to ensure that the gears and gear boxes you buy from us have the highest level of quality.
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