EP-Electric Motors for Air Compressors-180 Series

1. Technical Specifications: Electric Motors for Air Compressors 180 Series Performance Data

Model	180ST-SNT220-023-15A	180ST-SNT380-023-15A	180ST-SNT220-030-15A	180ST-SNT380-030-15A	180ST-SNT380-040-15A	180ST-SNT380-040-30A
Controller Voltage Range (VDC)	320–420	540–700	320–420	540–700	540–700	540–700
Base Number	180	180	180	180	180	180
Rated Voltage (V)	220	380	220	380	380	380
Rated Power (kW)	2.3	2.3	3	3	4	4
Rated Torque (Nm)	15	15	19	19	25.5	12.7
Rated Speed (rpm)	1500	1500	1500	1500	1500	3000
Rated Current (A)	7.73	4.73	9.96	5.568	7.5	7.3
Rated Efficiency (%)	93	92.9	92.9	92.5	93.1	93.21
Peak Power (kW)	6.9	6.9	9	9	12	12
Pole Number	10	10	10	10	10	10
Back EMF (20°C) (V/krpm)	125.7	206.5	131.7	224.4	215	112
Phase Resistance (75°C) (Ω)	0.516	1.49	0.4	1.18	0.96	0.64
Phase Inductance (mH)	12.6	33.13	10.4	32.8	29.2	13.6
Electrical Time Constant (ms)	12.21	11.12	13	13.9	15.21	10.63
Torque Constant (Nm/A)	1.64	2.75	1.7	3.33	3.02	1.66
Protection Rating	IP67	IP67	IP67	IP67	IP67	IP67
Insulation Class	H	H	H	H	H	H
Operating Duty	S2-3min	S2-3min	S2-3min	S2-3min	S2-3min	S2-3min

4kW Electric Motors for Air Compressors-180 Series Outline and Installation Dimensions Diagram

Parameter	Value
Controller Voltage Range (VDC)	540–700
Base Number	180
Rated Voltage (V)	380
Rated Power (kW)	4
Rated Torque (Nm)	25.5
Rated Speed (rpm)	1500
Rated Current (A)	7.5
Rated Efficiency (%)	93.1
Peak Power (kW)	12
Pole Number	10
Back EMF (20°C) (V/krpm)	215
Phase Resistance (75°C) (Ω)	0.96
Phase Inductance (mH)	29.2
Electrical Time Constant (ms)	15.21
Torque Constant (Nm/A)	3.02
Protection Rating	IP67
Insulation Class	H
Operating Duty	S2-3min

1.5 kW Electric Motors for Air Compressors' Efficiency Map And Power Factor Map

2. Electric Motors for Air Compressors' Working Principle

The EP-Electric Motors for Air Compressors-180 Series utilizes cutting-edge Permanent Magnet Synchronous Motor technology. Unlike asynchronous induction motors, the electric motors for air compressors in our 180 Series are embedded with high-energy permanent magnets that lock in sync with the stator's rotating magnetic field. This eliminates rotor slip and excitation losses, resulting in higher torque density and superior efficiency across a wider speed range. When the vehicle's air tanks drop below a set pressure, the controller instantly energizes the motor, providing immediate high torque to drive the air compressor motor pump. This rapid response capability is crucial for maintaining braking pressure in heavy vehicles, ensuring safety is never compromised.

3. EP-Electric Motors for Air Compressors Materials

Constructed as a premier Electric Motors for Air Compressors, the 180 Series is built using materials selected for their durability and performance:

• ✔ Stator Windings: High-grade copper wire with Class H insulation (up to 180°C) ensures the motor can withstand the high thermal loads of repeated start-stop cycles.
• ✔ Rotor Magnets: Sintered Neodymium Iron Boron (NdFeB) rare-earth magnets provide exceptional magnetic flux, enabling the compact frame to deliver torque comparable to a much larger 7.5 hp electric motor for air compressor.
• ✔ Housing: Robust aluminum alloy casing features optimized cooling fins for maximum heat dissipation via natural convection, eliminating the need for bulky external fans in many applications.
• ✔ Sealing: Advanced seals and gaskets provide IP67 protection, making the motor impervious to water jets and fine dust.

4. Electric Motors for Air Compressors' Application Scenarios

• ✔ Electric City Buses: Powering the high-capacity air compressors required for frequent braking, air suspension kneeling, and pneumatic door operation in urban transit.
• ✔ Electric Garbage Trucks: Driving the auxiliary air systems for braking and hydraulic engagement controls, where reliability is critical for daily sanitation routes.
• ✔ Heavy Logistics Vehicles: Serving as a powerful air compressor motor equivalent for long-haul electric trucks that require sustained air pressure for trailer braking systems.
• ✔ Railway Maintenance Vehicles: Providing mobile pneumatic power for track maintenance tools and braking systems on electrified rail service vehicles.
• ✔ Mining Equipment: Operating in harsh, dusty environments to power pneumatic controls on electric loaders and excavators, benefiting from the IP67 air compressor electric motor replacement design.

5. Air Compressor Electric Motor's Features And Advantages

5.1. Electric Motors for Air Compressors Features:

1. Power Range: The 180 Series motors come with power options ranging from 2.3kW to 4.3kW, catering to various air compressor needs, from small-scale to industrial applications.
2. Voltage Range: Available with a voltage range of 320-420 VDC for 220V-rated models and 540-700 VDC for 380V-rated models, ensuring compatibility with most electrical systems.
3. Efficiency: High-efficiency ratings are seen across all models, with efficiencies between 91.1% to 93.7%, making them highly energy-efficient for prolonged operations.
4. High Torque: These motors provide high torque, with maximum torque output ranging from 9.5 Nm to 34.2 Nm depending on the specific model, ensuring powerful performance under load.
5. Peak Power: Peak power output ranges from 4.5 kW to 12.9 kW, offering the flexibility to handle varying compressor workloads effectively.
6. Durability and Protection: These motors feature a high IP67 protection rating, ensuring that they are dust-tight and can withstand immersion in water up to 1 meter, making them highly durable for industrial environments.
7. Insulation Grade: All models are rated with an H insulation level, ensuring the motor’s stability and long service life even at high temperatures.
8. Operating Mode: Designed for S2-3min operating conditions, suitable for tasks requiring intermittent heavy-duty operation.

 

5.2. Electric Motors for Air Compressors Advantages:

1. Wide Application Range: The 180 Series motors are perfect for use in heavy-duty air compressor systems in industries, offering powerful and reliable solutions for various compressor needs.
2. Flexibility: With different power options and voltages, these motors are adaptable to both residential and industrial air compressor systems.
3. Long Operational Life: The motors are designed with high durability in mind, making them an excellent investment for long-term use in tough industrial conditions.
4. Superior Performance: With their high torque, peak power, and efficient design, the 180 Series motors deliver superior performance and reliability in air compressor systems.
5. Easy Integration: With standard configurations, these motors can easily integrate with existing systems for both new and retrofit compressor projects.

7. About Ever-Power Factory

As a professional electric motors for air compressors manufacturer, we utilize precision machining equipment and quality control systems to produce dust covers, gearboxes, and related products that meet industry standards.

We have a top-tier team of motor and control technology experts, and we have independently developed a first-class motor design and electromagnetic analysis platform. Most of our professional technical staff hold master's degrees or higher, and our research and development team has extensive practical experience. They are proficient in using professional design tools and integrated solution processes to meet design and development needs.

We offer excellent air compressor motor replacements. We have production lines for various motor types, including DC Motors, AC Motors, Stainless Steel Electric Motors, High Voltage Three-Phase Asynchronous Motors, and Brake Motors. Every product undergoes dimensional inspection and performance testing before leaving the factory. Our manufacturing process employs standardized procedures to ensure consistency across all batches.

Our factory produces both standard catalog products and customized products for Original Equipment Manufacturer (OEM) customers. Our engineering team collaborates with clients to adapt existing designs or develop new configurations based on specific application requirements. We maintain an inventory of commonly used sizes for immediate shipment and can arrange production for large volume orders.

Our technical support staff is available to assist with product selection, installation guidance, and troubleshooting. CAD drawings, dimension tables, and installation instructions are available.

8. Related Products

Frequently Asked Questions

Q1. What maintenance is required for the air compressor motor pump assembly?

A1. The motor itself is brushless and maintenance-free. However, for the air compressor motor pump assembly, you should regularly check the coupling or belt tension and ensure the cooling fins are free of debris to maintain optimal thermal performance.

Q2. Can I use this motor to replace a Baldor 7.5 hp air compressor motor in an industrial setting?

A2. The EVER-POWER 180 Series is a specialized high-voltage DC PMSM motor for vehicles (320V-700V). It cannot directly replace an AC mains-powered Baldor 7.5 hp air compressor motor used in a factory without a specialized high-voltage power supply and controller.

Q3. What is the cost of an air compressor motor kit for a fleet of electric buses?

A3. For specific pricing on bulk orders of our air compressor motor kit, please request a quote through our sales channel. We offer competitive pricing for fleet retrofits and OEM manufacturing partners.

Q4. How does the efficiency of the 180 Series compare to a standard marathon electric air compressor motor?

A4. Standard induction motors like some Marathon electric air compressor motor models often have efficiencies around 85-88%. Our 180 Series PMSM motors achieve rated efficiencies up to 93.1%, providing significant energy savings for battery-powered vehicles.

Q5. Does EVER-POWER provide the air compressor motor diagram for installation?

A5. Yes, every motor purchase includes a detailed air compressor motor diagram specifying mounting dimensions, shaft size, and electrical phase connections to ensure correct installation.

Q6. Is this electric motor for air compressors compatible with a standard air compressor motor pulley?

A6. The 180 Series comes with a standard keyed shaft (typically 28mm or similar, check specs). It is compatible with any standard air compressor motor pulley that matches the shaft diameter and keyway specifications.

Editor: PXY