Stepper Servo Drive Supplier in Pune: Buying Guide

Key Takeaways

A stepper servo drive checks the motor encoder, so an assembly or test station knows the axis really reached position.
RB Automation supplies Rtelligent T42, T60 Plus, T86, T60S/T86S and DS86 closed-loop drives to Pune from Ahmedabad.
Closed-loop steppers cost less and set up faster than AC servos, and suit most short, slow-to-medium moves.
Wire the drive's alarm output to the PLC, or the station cannot react when the axis falls behind.

Automotive customers in Pune expect every station on a line to prove what it did. A press-fit station logs force and position, a test rig records the result, and a positioning axis that silently stops short is not acceptable. That is why closed-loop stepper systems have become common on the assembly and testing stations built for Chakan and Ranjangaon plants. Buyers who need a stepper servo drive supplier in Pune can get Rtelligent closed-loop drives and motors shipped from our Ahmedabad base, along with advice on whether the axis needs one, or whether a plain stepper or a full servo is the better buy.

How a Closed-Loop Stepper Drive Works

Here the stepper motor has an encoder fitted to its rear shaft. While the motor moves, the drive compares where it should be with where the encoder says it is. Small differences are corrected on the fly. If the motor is blocked or overloaded and the error grows past a limit, the drive switches an alarm output so the PLC can stop the station. The drive also adjusts current to the actual load instead of running full current all the time, so the motor runs cooler.

Closed-Loop Drives We Supply to Pune

T42, a pulse-controlled drive for small closed-loop motors on light positioning tasks.
T60 Plus, a frequent choice for mid-size motors on indexers, feeders and fixture slides.
T86, for bigger frames and axes that need more torque.
T60S and T86S, Rtelligent's newer S-generation closed-loop models.
DS86, a hybrid 2-phase closed-loop drive.

Motors for these drives include the 2-phase closed-loop stepper motor, the version with brake and the version with Z-signal encoder. All of them are grouped under closed-loop stepper drives.

Where It Sits Between Stepper and Servo

Think of three levels. An open-loop stepper is the cheapest axis but has no idea whether it moved. An AC servo is the fastest and handles heavy, changing loads, but costs more and needs tuning. The closed-loop stepper sits in the middle: it confirms position and raises an alarm like a servo, yet it is almost as easy to commission as a plain stepper. For most Pune assembly stations, where moves are short and cycle times are measured in seconds rather than milliseconds, that middle level is enough. For high-speed gantries and press feeders, read our servo drive guide for Pune, and for the broader trade-off see stepper motor vs servo motor.

Choosing a Stepper Servo Drive

Let the motor decide: frame size and phase current of the encoder motor fix which drive model fits.
Check the controller: the PLC's pulse output type and signal level must suit the drive input.
Confirm the supply: know the DC or AC supply available in the panel.
Plan the signals back: alarm and in-position outputs to the PLC make the closed loop useful.
Handle gravity: vertical slides need a brake motor and brake control wiring.

Typical Pune Uses

Assembly and end-of-line test stations

Line builders supplying plants in Chakan, Sanaswadi and Ranjangaon use closed-loop steppers for part transfer, probe positioning and fixture clamping slides, where the PLC must know each move completed.

SPMs from Bhosari and Pimpri-Chinchwad

Drilling, tapping and riveting SPMs use closed-loop axes on feed slides and indexers, often as an upgrade when an open-loop design has been losing position under cutting load.

Retrofit of existing machines

Because the drive takes the same pulse and direction command, a machine can often move to closed loop by changing the motor, the drive and the encoder cable, while the PLC program stays largely the same.

Choosing Between the Closed-Loop Drives

Model	Command	Motor frame	Example Pune use
T42	Pulses	Smallest	Probe and sensor positioning on test rigs
T60 Plus	Pulses	Medium	Indexers and fixture slides on assembly stations
T86	Pulses	Large	Feed slides on drilling and tapping SPMs
T60S / T86S	S generation	Medium and large	Upgrading older open-loop machines
DS86	Hybrid	Large	Heavier encoder-fed axes

Each product page gives the electrical ratings; we check the pairing with your motor as part of the quotation.

A Typical Closed-Loop Application in Pune

Take a typical end-of-line test station for a steering or brake component built for a plant near Sanaswadi. A transfer slide moves each part into a test nest, a probe axis lowers onto the part, and the result is logged against the serial number. If the transfer slide stops short because a part is sitting badly, an open-loop system would still lower the probe and could record a false fail or damage the probe. With a T60 Plus driving a closed-loop motor on the slide, and its in-position and alarm outputs wired to the PLC, the probe only moves once the slide has truly arrived, and a blocked slide stops the cycle with a clear alarm.

Mistakes That Waste a Closed-Loop System

Leaving the alarm and in-position outputs unconnected, so the PLC never learns of a problem.
Mixing up motor and encoder cables between neighbouring axes during installation.
Using a closed-loop stepper on a fast, high-inertia axis that really needs an AC servo.
Forgetting brake control on a vertical probe or lift axis.

Details to Send for a Quote

Current motor and driver, or the load, stroke and speed
PLC model and its pulse output type
Supply voltage available
Need for brake or Z-signal encoder
Quantity

Why Pune Machine Builders Choose RB Automation

Being Rtelligent's technical partner means the drive, its encoder motor and the controller above them reach you as a set that has already been checked together. We ship to Pune from Ahmedabad and answer selection and wiring questions by phone on +91 8511104864, WhatsApp +91 9898739737 or contact@rbautomate.com. Other product families appear on the industrial automation supplier in Pune page.

Conclusion

When a station has to prove that each move happened, yet cycle times leave room for a stepper, closed-loop control is the practical middle ground. Send RB Automation the motor, load and controller details and we will recommend a matched Rtelligent drive and motor for your Pune machine.

Looking for a quote in Pune? 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 Pune

Frequently Asked Questions

What does a stepper servo drive add over an open-loop driver?

It reads an encoder on the motor, corrects small position errors and switches an alarm output if the motor cannot follow, so the PLC can stop the station instead of passing a bad part.

Which closed-loop stepper drives do you supply in Pune?

We supply Rtelligent T42, T60 Plus and T86 pulse-control drives, the T60S and T86S S series and the hybrid DS86, together with matching closed-loop stepper motors, with brake or Z-signal encoder where needed.

Is a closed-loop stepper enough for an automotive assembly station?

For most stations with short moves and cycle times of a few seconds, yes. For fast gantries, press feeders or heavy changing loads, an AC servo is the better choice. Share the motion and load and we will advise.

Can an existing open-loop machine be converted to closed loop?

Often it can. Since the drive accepts the same pulse and direction command, the change is usually the motor, drive and encoder cable, plus wiring the alarm output to the PLC. Send the current motor and PLC details to check.

What is the price of a stepper servo drive in Pune?

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

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