Choudhary Motors Charkhi Dadri · Haryana
Motor rewinding & pump repairs · Charkhi Dadri, Haryana

Your motor goes back to work with the readings to prove it

Single- and three-phase motors and borewell pumps, rewound on our own bench to the turns and gauge on the nameplate — then run on load, with the current on every phase written down and handed over with the motor.

A clear photo of the nameplate is enough for a quote. No need to load anything onto a trolley first.

Every one of these is inspected, and what is worn is replaced rather than reused.

Quoted before it is opened

You get the figure and the reason first. Nothing is stripped on the assumption you will agree to it.

Wound to the nameplate

The old winding is counted out before it comes out, so the new one is the maker’s data and not whatever copper was nearest.

Load tested, and written down

Run on load with the current recorded on all three phases. A copy of the readings goes home with the motor.

We come out to you

Breakdowns on farms, flour mills and workshops across the district, looked at the same day where we can.

What we do

Six trades, one bench

All of it happens here in Charkhi Dadri. Nothing is sent away to another shop, so nothing comes back a week later than we promised it.

Motor rewinding

Burnt-out motors stripped, rewound to the turns and gauge the maker specified, varnished and oven-cured. The old winding is counted before it comes out, so nothing is guessed at.

0.5 – 100 HP · single & three phase Read more

Submersible & openwell pumps

Borewell and openwell sets stripped, rewound, resealed and refilled, with the thrust bearing and mechanical seal replaced as a matter of course rather than as an extra.

Borewell V3 · V4 · V6 · openwell Read more

Copper winding wire

Super-enamelled copper by SWG, plus insulation paper, sleeving, tape and varnish — the same stock we wind with ourselves, weighed out for winders across the district.

Enamelled copper · sold by weight Read more

New motors & pumps

Induction motors, monoblocks and submersibles chosen against the head, the discharge and the supply you actually have — not against whatever is nearest on the shelf.

Sized against your load

Spares & bearings

Bearings, capacitors, cooling fans, terminal blocks, starters, shaft sleeves, submersible cable and glands — the parts that decide whether a rewind lasts four years or four months.

Over the counter

Site visits & breakdown calls

Farms, flour mills, feed plants and workshops. We come out, find whether it is the motor, the starter or the supply, and take away only what has to come away.

Across the district

Before you call

Read the nameplate, and we can quote without you moving the motor

Every induction motor carries a plate on the body, usually beside the terminal box. It has everything we need to price a rewind or match a replacement. Wipe the grease off it, take one square-on photo in good light, and send it on WhatsApp.

3~ INDUCTION MOTOR

IS 12615

OUTPUT
5.5 kW / 7.5 HP
VOLTS
415 V
AMPS
11.5 A
R.P.M.
1440
PH / HZ
3 PH / 50
FRAME
132 S
INS. CL
F
CONN.
DELTA
ENCL.
IP 55
SR. NO.
XXXXXXX / 2019

A typical three-phase plate. Yours will use some of these words and not others — send the photo and we will read it.

Send a nameplate photo on WhatsApp
  • kW / HP

    Sets the copper and the price

    What the motor delivers at the shaft — not what it draws from the supply. 1 HP is 0.746 kW.

  • Volts

    Decides the connection

    415 V across three phases, or 230 V single phase. Some plates show both a star and a delta voltage.

  • Amps

    What your starter must be set to

    Full load current — what it should draw when it is working properly at rated load.

  • RPM

    Sets the pole count and the winding

    Speed on load. 2880 is 2-pole, 1440 is 4-pole, 960 is 6-pole, 720 is 8-pole.

  • Phase / Hz

    Decides the whole winding layout

    1 ph or 3 ph, and 50 Hz on any Indian supply.

  • Frame

    How a replacement is matched

    The mounting dimensions — 80, 90L, 100L, 112M, 132S and so on. It is a size, not a model.

  • Ins. class

    Sets the wire and varnish we use

    B, F or H — the temperature the winding insulation is built to survive.

  • Conn.

    Wrong one burns the winding

    Star or delta, and sometimes both with a changeover. Your starter has to agree with it.

  • IP / encl.

    Says where it can be mounted

    How well it is sealed against dust and water. IP55 on most farm and mill duty.

  • Serial / date

    Tells us its age and history

    The maker’s own reference and, on most plates, the year it was built.

Plate burnt off or missing?

It happens on older motors, and it is not a problem. Bring it in: the winding data can be counted out of the stator as the old coils come off — turns, gauge, pitch and connection — and that is what we would have wound to anyway. Send a photo of the whole motor and the terminal box instead, and tell us what it was driving.

How it works

From the trolley to the load test

Five steps, and you are told where it is at the end of each one.

  1. 01

    Booked in

    Nameplate, winding data and the fault as you describe it, written down against your name and number before a single bolt comes off.

  2. 02

    Tested

    Insulation resistance to earth, continuity and balance across the phases, bearing play and shaft condition. That is what separates a rewind from a bearing job from a starter fault.

  3. 03

    Quoted

    You get the figure, and what it is for, before anything is stripped. If we think it is not worth rewinding, that is the conversation we have here rather than after.

  4. 04

    Rewound

    Old winding counted out and removed, slots cleaned and re-lined, new copper to the recorded turns and gauge, laced, connected, varnished and oven-cured. Bearings replaced, rotor and shaft checked.

  5. 05

    Load tested and handed back

    Run on load. Current on all three phases, insulation resistance and running temperature recorded, and a copy of the readings goes home with the motor.

What you get back

A rewind is only as good as the test behind it

Any shop can put copper into a stator, and it will run when you switch it on. The difference shows up in month four. So every motor leaving here is run on load and measured, and the sheet is handed over with it — which is also what stops a warranty claim turning into an argument about what was measured.

Balanced current across the three phases is the figure to look at. If one phase reads high, the winding or the supply is not right — whatever the motor sounds like.

Example report

7.5 HP · 3 phase · 4 pole · 1440 RPM

Passed
Insulation resistance to earth
Above 200 MΩ
Winding resistance R / Y / B
Balanced within 2%
Running current R / Y / B
10.4 / 10.6 / 10.5 A
No-load run
30 min, no temperature rise
Bearings
Both replaced · 6205 ZZ
Rotor
Balanced, shaft true

A worked example of the sheet, not a specific job. Your motor’s figures will be its own.

On the counter

What you can walk in and buy

Stock a working shop needs the same day, not on a three-day order.

Winding materials

  • Super-enamelled copper wire, 18–40 SWG
  • Slot insulation paper
  • Fibreglass and cotton sleeving
  • Polyester and cotton tape
  • Lacing cord and terminal leads
  • Air-drying and baking varnish

Bearings & mechanical

  • Ball bearings, 6200 and 6300 series, ZZ and 2RS
  • Mechanical seals and thrust pads
  • Shaft sleeves and circlips
  • Cooling fans and fan covers
  • Grease and bearing lock

Electrical

  • Run and start capacitors
  • DOL and star-delta starters
  • Single-phase preventers and dry-run relays
  • Terminal blocks and terminal boxes
  • Submersible flat cable and glands

Motors & pumps

  • Single- and three-phase induction motors
  • Monoblock and self-priming pumps
  • Openwell submersibles
  • Borewell submersible sets, V3 / V4 / V6
  • Control panels

Makes we deal in

We stock and repair the makes commonly used across the district. Ask at the counter or on WhatsApp for what is in today — stock on a given make moves week to week and we would rather tell you than have you drive over.

Reference

The three tables everyone looks up

Kept here because a winder halfway through a job should not have to hunt for them. Figures are standard values — always work to the plate on the motor in front of you.

HP kW Approx. FLC at 415 V, 3 ph
0.5 0.37 1.1
1 0.75 1.9
2 1.5 3.5
3 2.2 5.0
5 3.7 7.9
7.5 5.5 11.5
10 7.5 15.5
15 11 22
20 15 30
25 18.5 36
30 22 43
40 30 57
50 37 70
60 45 85
75 55 103
100 75 140

Current is indicative for a three-phase 415 V motor at about 0.85 power factor. The nameplate is what your starter is set from — not this table.

SWG mm
18 1.219
19 1.016
20 0.914
21 0.813
22 0.711
23 0.610
24 0.559
25 0.508
26 0.457
27 0.417
28 0.376
29 0.345
30 0.315
31 0.295
32 0.274
33 0.254
34 0.234
35 0.213
36 0.193
37 0.173
38 0.152
39 0.132
40 0.122

Standard Wire Gauge, bare copper diameter. Enamel adds roughly 0.02–0.05 mm depending on the grade.

Bearing Bore Outer Width
6201 12 32 10
6202 15 35 11
6203 17 40 12
6204 20 47 14
6205 25 52 15
6206 30 62 16
6207 35 72 17
6208 40 80 18
6303 17 47 14
6304 20 52 15
6305 25 62 17
6306 30 72 19
6307 35 80 21
6308 40 90 23

ZZ is metal shielded, 2RS is rubber sealed. Bore is what you measure on the shaft.

Where we come out

Breakdown calls across Charkhi Dadri

If it is bolted to a mill, a feed plant or a borewell head, it is usually easier for us to come to it. A call-out means finding whether the fault is the motor, the starter or the supply — and taking away only what has to come away. Most of the district is inside an hour.

Call +91 98137 07087

Villages and towns we regularly get to

  • Charkhi Dadri
  • Badhra
  • Baund Kalan
  • Jhojhu Kalan
  • Kalali
  • Loharu
  • Bhiwani
  • Mandhana
  • Sanjarwas
  • Atela Kalan
  • Imlota
  • Pilod
  • Kadma
  • Ranila

Not on the list? Call anyway — it is a short district and this is not a boundary.

Questions

What people ask at the counter

Is it worth rewinding, or should I just buy a new motor?

Below about 3 HP a new motor is often close enough to the cost of a proper rewind that replacing it is the better buy, and we will say so. Above that, a rewind to the original data costs a fraction of a replacement and the frame, shaft and end shields are usually still sound. What settles it is the core: if the laminations have burnt, or the shaft is scored at the bearing seat, no winding will fix that — and we would rather tell you before we take your money than after.

What does a rewind cost?

It is priced on the copper it takes and the labour to put it in, so it follows the HP, the pole count and the wire gauge rather than a flat rate per motor. Copper is also a traded metal, so the figure moves with the market. You get the price after we have opened the terminal box and tested the winding, and always before anything is stripped.

Do you handle makes other than the ones you sell?

Yes. A rewind is done to the winding data in the motor in front of us, so the badge on the end shield does not change the job. We rewind whatever is brought in, including motors bought elsewhere and motors somebody else has already had a go at.

My motor trips the starter the moment it runs. What is that?

Usually one of three things: the winding has gone to earth, the supply is single-phasing so the motor is trying to run on two phases, or the starter’s overload is set below what the motor actually draws. Testing the insulation to earth takes about ten minutes and tells you which one you have — bring the motor and the starter together if you can, because the fault is often in the one people leave at home.

My submersible still runs but the water has dropped off. Is the motor going?

Often not. When the discharge falls but the current stays normal, the usual cause is worn impellers and diffusers rather than a failing winding — or the water level in the bore itself has dropped. Both are worth checking before anyone talks about a rewind, because pulling a set out is the expensive part of the job.

What should I bring?

The motor, and the starter or control panel if you have one — a surprising share of burnt windings were killed by their panel, and testing them together saves you coming back. Send a photo of the nameplate on WhatsApp first and we can usually tell you the likely cost and time before you load anything.

Can you come out to the site?

Yes — farms, flour mills, feed plants and workshops across Charkhi Dadri. We come out, find whether the fault is the motor, the starter or the supply, and only bring back what has to come back to the bench.

Do you give a proper bill?

Yes. A printed invoice with the parts, the labour and the tax shown separately, so it is something you can put in your books or claim against. Ask for it at the counter when you collect.

Visit the shop

Bring it in, or we will come to it

Walk in with the motor, send a photo of the nameplate on WhatsApp, or call and we will come out. Breakdowns are looked at the same day where we can.

Send us the nameplate

A clear photo of the plate — HP, phase and RPM — is enough for us to quote a rewind or price a replacement before you load anything onto a trolley.

Quotes are free, and nothing is opened up until you have agreed the figure.