Servo Motor Supplier in Rajkot: Buying Guide

Key Takeaways

Rajkot uses servo motors for CNC lathe and VMC retrofits, bar feeders and packaging machines.
Size a servo by peak and continuous torque, top speed and the load-to-motor inertia ratio.
A servo reducer raises torque on slow, heavy axes and helps match inertia.
We supply Rtelligent servo motors, drives and reducers to Rajkot from Ahmedabad as matched sets.

Rajkot's machine tool trade has a long history of building and rebuilding lathes and machining centres. When an older machine is retrofitted with CNC, or a builder adds a bar feeder to keep a turning centre busy, the axes that need speed, quick acceleration and accurate stops usually get servo motors. RB Automation is a servo motor supplier in Rajkot for the Rtelligent range, supplying motors, matched drives and gearboxes from Ahmedabad, with sizing help by phone, WhatsApp and email.

Servo Applications Across Rajkot

CNC retrofits in Aji GIDC, Bhaktinagar and Gondal Road: X and Z axes on lathes and X, Y and Z axes on VMCs, where cutting loads change from one pass to the next.

Bar feeders and loaders: feeding bar stock into turning centres used by bearing, auto part and engine component makers.

Packaging machines: film feed and sealing axes on machines built in Rajkot for food and FMCG units.

SPMs at Metoda GIDC and Shapar-Veraval: fast transfer, pressing and positioning axes on special purpose machines for pump, engine and auto component lines.

What Makes a Servo Motor Different

A servo motor never works alone. Its encoder feeds shaft position back to the servo drive at a very high rate, and the drive corrects the current continuously so the motor follows the commanded move. That closed loop lets a servo accelerate hard, run fast, hold position under changing cutting loads and carry a short burst of overload, which a stepper cannot do.

Servo Motors and Accessories Available in Rajkot

RSHA series: AC servo motors in 60 and 80 mm frames with absolute encoder options and an optional brake.
RSNA series: 220 V AC servo motors with magnetic or optical encoder options and IP65/IP66 versions.
RSDA series: AC servo motors with an ultra-short body for tight mounting spaces.
RSM series servo motors.
Integrated low-voltage servo motor: the Rtelligent IDV, with the drive built in and a DC supply.
Super short DC servo motor: a 48 V motor for compact Z-axis and battery equipment, with an optional brake.
Servo reducers: planetary gearboxes that multiply torque and reduce the reflected inertia.

Our AC servo motors span about 50 W up to 1 kW. Specifications sit on the servo system and AC servo motor pages.

Sizing a Servo Motor for a Rajkot Machine

Describe the move: distance, time allowed, acceleration time and dwell.
Work out torque: continuous (RMS) torque over the cycle and peak torque while accelerating, including cutting force, friction and gravity.
Check speed: the motor speed needed at the ball screw pitch or gearbox ratio you plan to use.
Watch inertia: a heavy table or chuck on a small motor is hard to tune; a reducer helps.
Add a brake to any vertical axis, such as the Z-axis of a VMC.
Pair the drive: motor and drive must match; the Rajkot servo drive guide covers that side.

Servo Motor or Closed-Loop Stepper?

A servo earns its cost on fast, continuous or heavily loaded axes, while slower index and feed moves can frequently be handled by a closed-loop stepper. Compare them in stepper motor vs servo motor and in our stepper servo drive guide for Rajkot.

Servo Motor Options for Rajkot Machines

Option	Key feature	Typical Rajkot use
RSHA series	60/80 mm frames, absolute encoder options, optional brake	Lathe and VMC retrofit axes
RSNA series	220 V, encoder choices, IP65/IP66 versions	Axes exposed to coolant splash
RSDA series	Ultra-short body	Bar feeders and tight mounting spaces
RSM series	Rtelligent servo motor	General machine axes
IDV integrated low-voltage servo	Drive built into the motor, DC supply	Compact and mobile equipment
Super short DC servo	48 V, optional brake	Compact Z-axes
Servo reducer (42SPX to 120SPX)	Planetary gearbox	Slow, heavy axes and inertia matching

AC Servo vs Closed-Loop Stepper on a Retrofit

Question	AC servo	Closed-loop stepper
Fast rapid traverse needed?	Yes, strong at high speed	Torque drops as speed rises
Cutting load changes a lot?	Handles it with overload reserve	Limited reserve
Commissioning effort	Gain tuning required	Close to plug and play
Budget	Higher	Lower

A Typical Servo Application in Rajkot

Take a typical conventional lathe being converted to a two-axis CNC lathe in a Gondal Road workshop. The X axis carries the cross slide and the Z axis carries the saddle along the bed. Both see cutting loads that change with every pass and need quick rapids between cuts, which points to AC servo motors rather than steppers. The Z axis drives a long ball screw and a heavy saddle, so a servo reducer between motor and screw can bring the inertia ratio into a range that tunes cleanly. Before ordering, the retrofitter typically measures the screw pitch, the saddle weight and the rapid speed wanted, which together set the motor size.

Common Servo Motor Mistakes to Avoid

Sizing on continuous torque and running out of peak torque during acceleration.
Coupling a small motor directly to a heavy saddle or table with no reducer.
Fitting a non-brake motor on a VMC Z-axis.
Routing encoder cables next to spindle VFD cables.
Combining a motor and a drive from series that are not matched.

What to Send for a Servo Motor Quote

Mass moved, screw pitch or gear ratio of the axis
Required rapid speed and acceleration
Brake requirement and encoder preference
Controller or CNC you will use
Number of axes and machines

Why Rajkot Machine Builders Choose RB Automation for Servo Motors

Being Rtelligent's technical partner means the motor, drive, cables and gearbox you get from us are designed to work together, and sizing help is a phone call, WhatsApp message or email away. See all product families on the industrial automation supplier in Rajkot page.

Conclusion

For CNC retrofits, bar feeders and packaging machines built in Rajkot, the right servo motor depends on the motion profile, torque, speed and inertia. Send RB Automation those details, or the nameplate of the motor you want to replace, and we will propose a Rtelligent servo set for the axis.

Looking for a quote in Rajkot? Contact RB Automation at +91 8511104864, WhatsApp +91 9898739737 or email contact@rbautomate.com. We call back Monday to Saturday, 10:00 am to 6:00 pm.

More Buying Guides for Rajkot

Frequently Asked Questions

Which servo motors do you supply to Rajkot?

We supply Rtelligent RSHA, RSNA, RSDA and RSM series AC servo motors, the IDV integrated low-voltage servo motor, super short DC servo motors and servo reducers, from our base in Ahmedabad.

Can I use your servo motors for a CNC lathe or VMC retrofit?

Yes, for axes within the power range we supply, roughly 50 W to 1 kW for the AC servo motors. Share the axis load, ball screw pitch, speed and the existing motor details, and we will recommend a motor and drive.

Do I need a brake on a servo motor?

A brake is needed on any vertical axis, such as a VMC Z-axis, so that the axis cannot drop when power is removed. Horizontal axes usually do not need one.

Why would I add a servo reducer?

A planetary servo reducer multiplies torque for slow, heavy axes and reduces the inertia the motor sees, which makes the axis easier to tune. It can allow a smaller motor.

What is the price of a servo motor in Rajkot?

There is no fixed price list. The price depends on the series, power, encoder, brake, matching drive and quantity. Use the form on this page, call +91 8511104864 or email contact@rbautomate.com for a quotation.

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