Resolver 4KW 3000RPM 72V IP67 3 Phase DC PMSM S9 97% Efficiency Red Copper Hairpin Winding Permanent Magnet Synchronous Motor

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Resolver 4KW 3000RPM 72V IP67 3 Phase DC PMSM S9 97% Efficiency Red Copper Hairpin Winding Permanent Magnet Synchronous Motor

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Product Description

Permanent Magnet Synchronous Motor (PMSM)

The PMSM series is widely used in stable power output scenarios such as vehicles and machine tools. Composed of highly reliable core components, including high-temp stable permanent magnets, high-performance hairpin windings, reluctance resolvers, and high-performance bearings, this motor provides users with a long-term safe and reliable product experience and service.

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Features

Operating Temp: -30°C~150°C
Stable Service Life: > 5 years
Duty Cycle: S9
Rated Voltage: 72V
Rated Speed: 3000RPM
Cooling: Natural Air
Precision: Zero Point Error ≤0.3°

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Customer Values

Higher Durability: IP67 protection and high-temp magnet stability.
Noise Immunity: Electrical protection for longer equipment uptime.
Cost Efficient: Optimized structure minimizes service costs.
High Redundancy: Design redundancy reduces after-sales issues.

📊 Technical Specifications

Item	Name	Specification	Item	Name	Specification
1	Model#	YL-EM-4KW-150-A	9	Rated Power	4KW
2	Type	Three-phase PMSM	10	Peak Power	8KW
3	Pole pairs	4	11	Duty Cycle	S9
4	Rated Voltage	DC 72V	12	Protection	IP67
5	Rated Speed	3000RPM	13	Operation Temp	-30ºC~150ºC
6	Peak Speed	6000RPM	14	Temp Sensor	NTC 10K 3435
7	Rated Torque	12.7N.m	15	Encoder	Reluctance resolver
8	Peak Torque	70N.m	16	Zero Error	≤0.3º

Position Encoder Parameters

Name	Specification
Pole Pairs	4
Power Supply	10K HZ AC7V rms
Transformer Ratio	0.286±10% static / ±2% dynamic
Electrical Error	≤15′
Input Impedance	110±10Ω
Min. Zero Point Error	≤0.3º
Recommended Chip	AD2S1210WDSTZRL7

Low-voltage Connector Comparison

#	Name	Specification
1	Motor connector	DJ70816Y-1.8-11
2	Controller connector	DJ70816Y-1.8-21

PIN Definition (DJ70816Y-1.8-11)

Port	Color	Aperture (mm)	Definition
1	Brown	7.5	NTC -
2	White	7.5	Sin +
3	Yellow	7.5	Cos +
4	Red	7.5	R1 +
5	Grey	7.5	NTC +
6	Blue	7.5	Sin -
7	Green	7.5	Cos -
8	Black	7.5	R1 -

Internal Structure & Design

Internal Spline Parameters

Real Permanent Magnet Synchronous Motor

Is your motor a real Synchronous Motor?

Those with incremental encoders built in are actually NOT real Synchronous Motors!

Our PMSM Advantage

✓ Smooth and stable torque output

✓ Precise Control

✓ Low Heat & Power Consumption

✓ Minimum Zero Point Error ≤0.3°

Standard BLDC Motor

✗ High torque pulsation

✗ High noise

✗ Potential higher heat

🛠️ High Performance Materials

100% Red Copper Winding: Long service life, low energy loss, and high efficiency.

Hairpin Winding: Space optimized, low noise, and high overload redundancy.

IP67 Protection

100% Dustproof

Survives 0.5 hour soaking in 1m water; born for harsh environments.

Advanced Lamination

High Performance AHV series silicone steel with low iron loss and eddy current loss.

UH Series Permanent Magnet

Stable at 180°C high temperature with no degaussing and low magnetic loss.

SKF Bearings

High performance double row angular contact ball bearings for maximum stability.

⚖️ Series Model Comparison

Name	4KW-A-H	4KW-A	5KW-B	7.5KW-C	10KW-D	10KW-E
Rated Voltage	DC72V	DC72V	DC72V	DC72V	DC96V	DC96V
Rated Speed (RPM)	3000	3000	3500	3500	2600	3000
Rated Torque (N.m)	12.7	12.7	13.7	20.5	35	31.8
Peak Torque (N.m)	70	70	80	85	90	140
Peak Power (KW)	8	8	12	20	22	25
Protection	IP65	IP67	IP67	IP67	IP67	IP67
Operation Temp	-30~150ºC	-30~150ºC	-40~150ºC	-40~150ºC	-40~150ºC	-40~150ºC

Frequently Asked Questions

Q1: What is the benefit of the reluctance resolver used in these motors?

The reluctance resolver acts as an absolute encoder, offering higher reliability in harsh conditions compared to optical or magnetic encoders. It is resistant to water ingress, high voltage, vibration, and extreme temperatures.

Q2: How does hairpin winding improve motor performance?

Hairpin winding optimizes internal space, which reduces heat generation and noise while providing high overload redundancy, allowing the motor to handle peak loads more effectively than traditional winding methods.

Q3: Can the motor operate in extreme temperatures?

Yes, the motor is designed to operate stably between -30°C and 150°C. Certain models in the series are even rated for temperatures as low as -40°C. The UH series magnets ensure no degaussing even at 180°C.

Q4: What does the IP67 protection rating guarantee?

An IP67 rating means the motor is 100% dustproof and can withstand being submerged in up to 1 meter of water for 30 minutes, making it ideal for outdoor or harsh industrial environments.

Q5: Why is this referred to as a "Real" Synchronous Motor?

We synchronize the home position of the encoder, the motor, and the controller. With a position synchronized performance of ≥98% and a minimum zero-point error of ≤0.3°, it provides much more precise control than standard BLDC motors.

Q6: What kind of bearings are used in the assembly?

The motors utilize high-performance SKF double-row angular contact ball bearings, ensuring smooth rotation, high load capacity, and a service life of more than 5 years.

Product Detail

Resolver 4KW 3000RPM 72V IP67 3 Phase DC PMSM S9 97% Efficiency Red Copper Hairpin Winding Permanent Magnet Synchronous Motor

Product Description