Planetary Speed Reducer Manufacturer in India
A planetary speed reducer (planetary gear reducer) lowers the speed of a motor and multiplies its torque through one or more planetary stages on a common axis. It is the core of Kavitsu’s product range. We have manufactured planetary speed reducers in Satara, Maharashtra since 1992, from small units up to drives weighing 43 tonnes.
This page covers the inline speed reducer series and how to select it. For the full overview of our range, see planetary gearbox manufacturer.
Planetary Speed Reducer Specifications
| Parameter | Kavitsu Standard Range |
|---|---|
| Output torque | 10 Nm to 50,00,000 Nm |
| Reduction ratio | 3:1 to 1,00,000:1 |
| Input power | 0.18 kW to 2,000 kW |
| Stages | 1 to 4 (more on request) |
| Mounting | Foot, flange and agitator type |
| Input | Free input shaft or hollow input; IEC B5 motor or hydraulic motor adaptor |
| Output | Keyed, splined, splined hollow, or hollow shaft with shrink disc |
| Housing | SG cast iron or cast steel |
Planetary Speed Reducer Manufacturer, Supplier & Exporter
Planetary Speed Reducer Manufacturer
Planetary speed reducers are designed, built and tested at Kavitsu's Satara works, in 20 modular sizes.
Planetary Speed Reducer Supplier
We supply speed reducers to OEMs, EPC contractors and plants across India, including replacements for imported reducers.
Planetary Speed Reducer Exporter
Planetary speed reducers are exported to more than 30 countries with full documentation.
Selecting a Planetary Speed Reducer
Kavitsu sizes speed reducers using the terms in our catalogue:
- Nominal torque Mn2: the output torque at uniform continuous load with service factor fs = 1.
- Calculated torque Mc2 = Mr2 × fs: the required torque multiplied by the service factor. It must not exceed Mn2.
- Ratio i = n1 / n2: keep the input speed at or below 1,500 rpm for continuous industrial duty.
- Life factor Fh2 = n2 × h: output speed multiplied by the required working hours.
- Thermal power Pt: checked for continuous duty at 1,500 rpm and 20°C ambient, with a correction factor for other conditions.
Speed reducers can be driven by electric or hydraulic motors. Hydraulic versions can include a negative multi-disc parking brake.
Applications
Conveyors, mixers and agitators, hoists, winches, mill drives, kilns, clarifiers, slewing and travel drives in steel, cement, sugar, mining, chemical, paper and water treatment plants.
Information Needed to Quote a Planetary Speed Reducer
To recommend the right model quickly, please share:
- Required output torque (Mr2) and output speed (n2)
- Input: electric motor kW and rpm, or hydraulic motor
- Service factor: type of load and daily running hours
- Required working life in hours
- Mounting position and shaft type
- Ambient temperature for the thermal check
Every Kavitsu unit is assembled and tested in-house at Satara before dispatch. Test certificates and GA drawings are supplied with project and export orders.
Send your torque, speed and application details. We reply with a technical recommendation and price from our Satara factory.
Send Enquiry View Planetary GearboxesFrequently Asked Questions – Planetary Speed Reducer
The terms mean the same product. A planetary speed reducer is a planetary gearbox used to reduce speed and increase torque.
Ratios from 3:1 to 1,00,000:1 are available, using 1 to 4 or more planetary stages.
Yes. Kavitsu offers input adaptors for hydraulic motors from major makers, with an optional negative multi-disc hydraulic parking brake.
For continuous industrial duty, Kavitsu recommends an input speed not exceeding 1,500 rpm.
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