EP-Electric Motor For Air Compressor-130 Series
The design philosophy behind the EP-Electric Motor For Air Compressor-130 Series focuses on durability in harsh environments. The EP-130 Series features a fully sealed structure with an IP67 protection rating, ensuring complete immunity to dust ingress and the capability to withstand temporary water submersion. This makes it an ideal choice for fleet managers looking for a reliable motor for air compressor that minimizes maintenance downtime. Furthermore, the motor is equipped with Class H insulation, allowing it to withstand internal temperatures up to 180°C without performance degradation.
1. Technical Specifications of Electric Motor For Air Compressor-130 Series
| Model | 130ST-SNT220-015-15A | 130ST-SNT380-015-15A | 130ST-SNT220-023-15A | 130ST-SNT380-023-15A |
|---|---|---|---|---|
| Controller Voltage Range (VDC) | 320-420 | 540-700 | 320-420 | 540-700 |
| Base Number | 130 | 130 | 130 | 130 |
| Rated Voltage (V) | 220 | 380 | 220 | 380 |
| Rated Power (kW) | 1.5 | 1.5 | 2.3 | 2.3 |
| Rated Torque (Nm) | 9.5 | 9.5 | 15 | 15 |
| Rated Speed (rpm) | 1500 | 1500 | 1500 | 1500 |
| Rated Current (A) | 5.4 | 3.1 | 7.8 | 4.7 |
| Rated Efficiency (%) | 91.2 | 91.1 | 92.0 | 91.8 |
| Peak Power (kW) | 4.5 | 4.5 | 6.9 | 6.9 |
| Pole Number | 10 | 10 | 10 | 10 |
| Back EMF (20°C) (V/krpm) | 113 | 198 | 118 | 197 |
| Phase Resistance (75°C) (Ω) | 0.902 | 2.8 | 0.524 | 1.52 |
| Phase Inductance (mH) | 15 | 46.8 | 10.5 | 29.4 |
| Electrical Time Constant (ms) | 8.31 | 8.36 | 10.02 | 9.67 |
| Torque Constant (Nm/A) | 1.77 | 3.09 | 1.92 | 3.19 |
| Protection Rating | IP67 | IP67 | IP67 | IP67 |
| Insulation Class | H | H | H | H |
| Operating Duty | S2-3min | S2-3min | S2-3min | S2-3min |
Electric Motor For Air Compressor-130 Series diagram
| Controller Voltage Range (VDC) | 540-700 | Pole Number | 10 |
| Base Number | 130 | Back EMF (20°C) (V/krpm) | 198 |
| Rated Voltage (V) | 380 | Phase Resistance (75°C) (Ω) | 2.8 |
| Rated Power (kW) | 1.5 | Phase Inductance (mH) | 46.8 |
| Rated Torque (Nm) | 9.5 | Electrical Time Constant (ms) | 8.36 |
| Rated Speed (rpm) | 1500 | Torque Constant (Nm/A) | 3.09 |
| Rated Current (A) | 3.1 | Protection Rating | IP67 |
| Rated Efficiency (%) | 91.1 | Insulation Class | H |
| Peak Power (kW) | 4.5 | Operating Duty | S2-3min |
1.5kW motor efficiency map and power factor map
2. Working Principle of the PMSM Compressor Motor
The EP-Electric Motor For Air Compressor-130 Series operates on the principles of Permanent Magnet Synchronous Motor (PMSM) technology, which offers distinct advantages over traditional brushed DC or AC induction motors. The core mechanism relies on the interaction between a rotating magnetic field generated by the stator windings and a constant magnetic field provided by high-energy rare-earth permanent magnets embedded in the rotor. When three-phase AC power (inverted from the vehicle's DC battery) flows through the stator, it creates a magnetic field that rotates at a synchronous speed. Unlike induction motors, the rotor in our electric air compressor motors locks into step with this field instantly, eliminating "slip" and ensuring that the motor speed is directly proportional to the frequency of the input current. This results in precise speed control and higher efficiency, particularly important when acting as a motor compressor air drive where load demands fluctuate rapidly.
In an electric vehicle's braking system, the air compressor does not run continuously. It operates in an on-demand cycle, requiring the compressor with motor to ramp up to rated speed (1500 rpm) almost instantly to replenish air tanks. The 130 Series excels here due to its low rotor inertia and high torque coefficient (up to 3.09 Nm/A). When the pressure sensor detects a drop in the air tank, the controller sends a command to the motor. The vector control algorithm ensures that maximum torque is available even at zero speed, allowing the compressor to start under load without stalling. This "power-on-demand" capability significantly reduces energy consumption compared to idling diesel-driven pumps. Furthermore, the sinusoidal back-EMF design of our electric motors for air compressors minimizes torque ripple, leading to quieter operation and reduced mechanical stress on the compressor pump head, thereby extending the lifespan of the entire unit.
3. Material Quality & Construction
The longevity and reliability of our air compressor motors are derived from a meticulous selection of premium materials. EVER-POWER refuses to compromise on quality, knowing that these components must endure the lifecycle of commercial vehicles.
High-Grade Aluminum Housing
The EP-Electric Motor For Air Compressor-130 Series features a precision-cast aluminum alloy shell. This material is selected for its exceptional strength-to-weight ratio, crucial for electric vehicles, and its superior thermal conductivity, which efficiently dissipates heat generated by the compressor motor during heavy operation cycles.
Rare-Earth Permanent Magnets
We utilize top-tier Neodymium Iron Boron magnets in our rotors. These magnets ensure a strong, consistent magnetic field that does not degrade over time or under high temperatures, allowing the electric motor for air compressor to maintain high efficiency and torque density throughout its service life.
Silicon Steel Stator
The stator core is constructed from cold-rolled, non-grain-oriented silicon steel laminations. This material minimizes magnetic hysteresis and eddy current losses, which are the primary sources of inefficiency in electric motors. This contributes significantly to the >91% efficiency rating of our air compressor electric motors.
4. How to choose the right Electric Motor For Air Compressor?
Motor Power (kW): For typical air compressor applications, the 130 Series motors such as the 1.5 kW (130ST-SNT380-015-15A) or the 3 kW options offer flexibility depending on the required load. The 1.5 kW motor provides 9.5 Nm of torque, while the 3 kW motor (180ST-SNT380-030-15A) delivers 19 Nm of torque, making it suitable for heavier or more demanding applications.
Speed and Efficiency: The speed is typically fixed at 1500 rpm for both the 1.5 kW and 3 kW motors, which ensures consistent performance. The motors in the 130 Series achieve efficiency ratings of around 91%, ideal for reducing operational costs while maximizing output.
Current and Power Factor: The 130ST-SNT380-015-15A model draws 3.1 A at 380 V, while the 180ST-SNT380-030-15A model draws 9.96 A at 220 V, both ensuring a high power factor (around 92%) for energy-efficient operation.
IP Rating: With an IP67 rating, these motors are well-suited for harsh environments, ensuring protection against dust and water.
5. EP-Electric Motor For Air Compressor-130 Series's Application Scenarios
The Electric Motor for Air Compressor is versatile and engineered to power pneumatic systems across various industries.
Electric Buses & Coaches
The Electric Motor For Air Compressor-130 Series serves as the primary driver for air brake compressors in electric transit buses. Its high efficiency ensures minimal battery drain, while its quiet operation improves passenger comfort.
Logistics & Sanitation Vehicles
Ideal for electric delivery trucks and street sweepers. The IP67 rating protects the air compressor pump motor from dust, dirt, and water spray common in daily municipal operations.
Construction Machinery
Used in electric loaders and excavators to power pneumatic auxiliary systems. The robust aluminum housing withstands the vibrations and shocks typical of construction sites.
Industrial Automation
Beyond vehicles, this Electric Motor For Air Compressor, 5 horsepower equivalent (in peak performance) is suitable for stationary industrial air compressors requiring high-efficiency, variable speed control.
6. About EVER-POWER
At EVER-POWER, we are the Electric Motor for Air Compressor manufacturers. We have a team of over 800 dedicated employees, including more than 100 professional technical experts who form our elite R&D team focused on new energy vehicle motor and control technologies.
We have advanced simulation tools to optimize all aspects of motor power consumption and mechanical performance. Our manufacturing system is equipped with high-speed stamping machines, continuous vacuum impregnation equipment, and automated assembly lines. We hold ISO9001 and IATF16949 quality certifications, ensuring that every product meets the highest automotive industry standards.
Our products, including automotive power steering pump drive motors, air compressor motors, and servo drives, are widely used in the main drive systems, air conditioning systems, and steering assist systems of new energy vehicles worldwide.
Why Partner with Us?
- ✓ Expert R&D: 100+ technical specialists.
- ✓ Quality Assurance: Rigorous ISO standard testing.
- ✓ Global Reach: Serving clients worldwide.
7. Related Products
Industrial Gearboxes
Precision gearboxes compatible with our motor series for diverse industrial automation needs.
FAQ
Q1. What makes the 130 Series the best electric motor for air compressor applications in electric buses?
A1. The 130 Series stands out due to its high-efficiency PMSM technology, which offers significant energy savings over traditional induction motors. Its IP67 rating ensures durability in road conditions, and the compact 130mm frame allows for easy integration into the limited chassis space of modern electric buses.
Q2. How do I know if this motor serves as a suitable replacement air compressor pump drive for my current setup?
A2. If your current system requires a power output between 1.5kW and 2.3kW and operates on a high-voltage DC bus (320-700V), the 130 Series is an excellent candidate. We provide detailed dimensional drawings to verify mounting compatibility. It is designed to be a direct replacement air compressor pump motor for many standard units.
Q3. How does the back EMF specification affect the performance of the air compressor motor?
A3. The back EMF (113-198 V/krpm depending on model) is matched to the controller voltage to ensure efficient operation at the rated speed of 1500rpm. A correctly matched back EMF ensures the air compressor motor runs cooler and uses less current for the same torque output.
Q4. When should I choose the 2.3kW model over the 1.5kW motor for my compressor system?
A4. You should opt for the 2.3kW model (like the 130ST-SNT220-023-15A) if your air brake system requires faster recovery times or operates larger air tanks, necessitating higher torque (15 Nm vs 9.5 Nm) to maintain pressure under heavy usage.
Q5. Which specific maintenance procedures are recommended for these electric motors for air compressors?
A5. Thanks to the brushless PMSM design and sealed IP67 housing, these motors are virtually maintenance-free. Regular visual inspections of the mounting bolts and electrical connections are generally sufficient to ensure long-term reliability.
Q6. How does the Class H insulation benefit the operation of the motor compressor air unit in hot climates?
A6. Class H insulation allows the motor compressor air unit to safely operate at internal temperatures up to 180°C. This is critical for vehicles in hot climates like the Middle East or Australia, where ambient heat combined with operational heat could otherwise cause motor failure.
Additional information
| Edited by | PXY |
|---|
Product Quick Detail:
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Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.
Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
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