180 Series AC Servo Motor

Q: Can I get a longer shaft or a custom flange?

Yes, both are available on production orders. Shaft length, keyway, flange bolt pattern and connector type can be machined to drawing. Send your drawing or target equipment model and a dimensioned quote comes back within the same working day.

180 Series AC servo motors cover 2.7–7.5 kW with rated torque from 17 Nm to 48 Nm, rated speed 1000–2000 rpm. Peak torque up to 96 Nm. 220 V or 380 V input, 2500 PPR photoelectric encoder, Class F insulation, IP65 sealing. Suited to CNC, woodworking, printing and medical equipment. OEM shafts and brakes available.

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Product Description

A 180 Series AC servo motor is a high-power servo drive motor built on a 180 mm frame with a 2500 PPR encoder and IP65 sealing.

Eight stock ratings cover 2.7 kW to 7.5 kW, at 1000, 1500 or 2000 rpm. Rated torque runs from 17 Nm to 48 Nm and peak torque reaches 96 Nm. Both 220 V and 380 V line voltages are available on every rating. Every motor ships with a serialized test sheet.

8 Stock Ratings 220V / 380V Dual Voltage 18-Month Warranty ISO 9001:2015 Certified

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Model Matrix by Power Range

2.7 – 3.0 kWEntry-level 180 frame

180ST-M17015 2.7 kW · 17.2 Nm · 1500 rpm 17 Nm

180ST-M19015 3.0 kW · 19 Nm · 1500 rpm 19 Nm

3.7 – 4.5 kWMid-range, 220 V / 380 V dual input

180ST-M21020 4.5 kW · 21.5 Nm · 2000 rpm 21.5 Nm

180ST-M27010 2.9 kW · 27 Nm · 1000 rpm 27 Nm

180ST-M27015 4.3 kW · 27 Nm · 1500 rpm 27 Nm

180ST-M35010 3.7 kW · 35 Nm · 1000 rpm 35 Nm

4.8 – 7.5 kWHigh-torque, high-power duty

180ST-M35015 5.5 kW · 35 Nm · 1500 rpm 35 Nm

180ST-M48015 7.5 kW · 48 Nm · 1500 rpm 48 Nm

Voltage Options — 220 V vs 380 V

220 V Line

Rated current: 10.5 – 32 A
Suitable for regions on 220 V three-phase mains
Preferred for retrofits where a transformer is already in place
Standard for smaller 180 frame ratings

380 V Line

Rated current: 6.5 – 20 A
Lower current per kW, smaller cable and breaker
Standard for European and most Asian mains
Preferred above 5.5 kW to reduce copper losses

Full Technical Data

Parameter	M17015	M19015	M21020	M27010	M27015	M35010	M35015	M48015
Rated power	2.7 kW	3.0 kW	4.5 kW	2.9 kW	4.3 kW	3.7 kW	5.5 kW	7.5 kW
Rated speed	1500 rpm	1500 rpm	2000 rpm	1000 rpm	1500 rpm	1000 rpm	1500 rpm	1500 rpm
Rated torque	17.2 N·m	19 N·m	21.5 N·m	27 N·m	27 N·m	35 N·m	35 N·m	48 N·m
Peak torque	43 N·m	47 N·m	53 N·m	67 N·m	67 N·m	70 N·m	70 N·m	96 N·m
Rated current (220 V)	10.5 A	12 A	16 A	12 A	16 A	16 A	24 A	32 A
Rated current (380 V)	6.5 A	7.5 A	9.5 A	7.5 A	10 A	10 A	12 A	20 A
Rotor inertia	3.4×10⁻³ kg·m²	3.8×10⁻³ kg·m²	4.7×10⁻³ kg·m²	6.1×10⁻³ kg·m²	6.1×10⁻³ kg·m²	8.6×10⁻³ kg·m²	8.6×10⁻³ kg·m²	9.5×10⁻³ kg·m²
Weight	19.5 kg	20.5 kg	22.2 kg	25.5 kg	25.5 kg	30.5 kg	30.5 kg	40 kg

Common Specifications

Encoder — 2500 PPR photoelectric encoder, A/B/Z differential output plus U/V/W commutation
Insulation grade — Class F (155 °C rise limit)
Ingress protection — IP65, shaft seal included
Drive waveform — Sine wave, ST code designation
Working temperature — −20 °C to +40 °C
Working humidity — below 90% RH, non-condensing
Brake options — Z1 magnetic brake or Z2 permanent magnet brake
Feedback alternatives — Resolver available on request in place of photoelectric encoder

Where the 180 Series Runs

CNC machine toolsHeavy feed axes, spindle orientation, tool changers

WoodworkingMulti-axis routers, edge banding, panel saws

PrintingWeb tension control, cutting and register

Medical equipmentImaging gantries, patient positioning

Chemical processingMetering pumps, mixers, high-precision dosing

PackagingFilling, cartoning, sealing under continuous duty

Outline and Mounting Dimensions

180 Series AC Servo Motor dimension drawing

All dimensions in mm. L = motor length without brake. L1 = with magnetic brake. L2 = with permanent magnet brake.

Torque	D	H	M	N	L	L1	L2
17.2 N·m	⌀35	228	⌀200	⌀114.3	226	298	308
19 N·m	⌀35	228	⌀200	⌀114.3	232	304	314
21.5 N·m	⌀35	228	⌀200	⌀114.3	243	315	325
27 N·m	⌀35	228	⌀200	⌀114.3	262	334	344
35 N·m	⌀35	228	⌀200	⌀114.3	292	364	382
48 N·m	⌀35	228	⌀200	⌀114.3	346	418	436

Winding and Encoder Terminals

Winding socket

U (red)	Pin 1
V (yellow)	Pin 2
W (blue)	Pin 3
PE (yellow-green / black)	Pin 4

Encoder socket — 15-pin

5V	Pin 2	0V	Pin 3
B+	Pin 4	Z−	Pin 5
U+	Pin 6	Z+	Pin 7
U−	Pin 8	A+	Pin 9
V+	Pin 10	W+	Pin 11
V−	Pin 12	A−	Pin 13
B−	Pin 14	W−	Pin 15
PE	Pin 1

How to Read the Model Code

180Frame number — 180 mm outer diameter

STSine wave drive

MPhotoelectric encoder feedback

48015First 3 digits = rated torque in N·m ×1; last 2 digits = rated speed × 100 rpm. 48015 = 48 N·m at 1500 rpm

Z1 / Z2Z1 = magnetic brake; Z2 = permanent magnet brake; no suffix = no brake

Ordering and Delivery

Send specifications

Model, rated power, speed, voltage (220 V or 380 V), brake option, quantity.

Receive drawing

Dimensioned drawing returned same working day for confirmation.

Sample or production

Samples from 1 piece. MOQ 5 units per model. T/T or L/C at sight.

Ship in 5–10 days

Stock models dispatch in 5–10 working days. Brake or custom shafts 20–30 days. FOB Ningbo / Shanghai.

Buyer Questions

What is the difference between the 180 Series and the 150 Series?

The 180 Series covers 2.7–7.5 kW with rated torque 17–48 Nm; the 150 Series tops out at 5.5 kW and 27 Nm. Both share the same 2500 PPR encoder, IP65 rating and Class F insulation. Choose the 180 Series when the axis needs more than 27 Nm continuous torque, more than 5.5 kW shaft power, or 380 V dual-voltage input.

Is 220 V or 380 V the right choice for my application?

380 V is recommended above 5.5 kW, or wherever the local mains supply is 380 V. At the same power, 380 V draws about 40% of the current of a 220 V build, which means smaller cables, smaller breakers and less heat in the cabinet. Below 5.5 kW, 220 V is usually simpler and lower cost.

What driver works with a 180 Series motor?

Any three-phase AC servo drive rated for the selected line voltage and 32 A continuous phase current. The 180 Series uses a 2500 PPR photoelectric encoder in A/B/Z differential form plus U/V/W commutation signals — the standard interface on most industrial servo drives. Wiring diagrams are supplied with every shipment.

Can I get a longer shaft or a custom flange?

Yes, both are available on production orders. Shaft length, keyway, flange bolt pattern and connector type can be machined to drawing. Send your drawing or target equipment model and a dimensioned quote comes back within the same working day.

How is motor quality verified before shipping?

Every motor is tested on the bench for back-EMF waveform, three-phase resistance balance, insulation resistance at 500 V DC, no-load current, no-load speed and vibration. The measurement sheet is printed with the motor serial number and travels in the crate. Motors that fail any parameter are reworked or scrapped, never shipped.

What is the warranty and certification?

18 months from shipment against manufacturing defects, backed by an ISO 9001:2015 certified quality system. CE and RoHS declarations are available on request. Our process is documented on the Quality Assurance page.

Send your model, voltage and quantity. A dimensioned quote comes back the same working day.

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Contact Info

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Address

Luotuo Industrial Area, Zhenhai District, Ningbo City, China
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Tel

+86-574-87167707
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Email

[email protected]

We are happy to provide a quote for any of our products. Give us a call at 86-574-87167707 or fill out the form below and one of our engineers will be in touch shortly. Please include a product description and any customizations you need.