Rotary Screw Compressor Direct Drive High Efficiency Permanent Magnet Motor With Inverter

Energy-saving effect of air compressor reduces energy costs

Ordinary air compressors adopt the control mode of full load, no load, and operate between the set pressures. The no-load power will consume excessively, which will cause a lot of waste of energy. Permanent magnet variable frequency constant temperature and constant pressure can effectively reduce energy consumption and cost, and the purchase price of the air compressor can be recovered within one year.

The overload and no-load time of the industrial frequency air compressor is relatively long. For example, the same rated power is 37kw, and the load rate is only 60. The input power of the ordinary industrial frequency machine is 37kw, while the permanent magnet synchronous model is about 23kw, and the energy saving efficiency is very high. According to preliminary calculations, it can save more than USD5000 per year. The permanent magnet frequency conversion can control the pressure at constant temperature and pressure, effectively introducing no-load and overload, and effectively saving energy consumption.

Technical Parameters:

Machine Details:

1.High Efficiency Permanent Magnet Motor
Protection class IP54, insulation class F high protection, high precision, adjustable, low noise, low vibration, stable operation.

2.Smart Inverter
Intelligent frequency conversion start, stable air pressure, start without impact.

3.Efficient Screw Airend
High-precision twin-screw rotor, triple-glazed, less wearing parts, compact structure, large air delivery, high stability.

4.Intelligent PLC Control System
Record equipment operating status, automatically remind equipment repair and maintenance, automatic fault alarm shutdown protection, real-time intelligent detection of compressor status.

5.Electric Control System
Using silver contacts to prolong the life of the system, circuit protection, stable operation of the equipment, prevent excessive unloading of the compressor, and save energy consumption.

6.Cooling System+Oil and gas separation system
Adopt high-pressure cooling system, high heat dissipation efficiency
High oil and gas separation efficiency, reliability, durability, reasonable structural design, and more convenient maintenance.

7.Intake Valve Assembly
The air intake valve can automatically adjust the air volume from 0 to 100% according to the requirements of the system air volume, and the pressure loss is small.

Advantages of permanent magnet variable frequency air compressor:

1. Adopt high-efficiency permanent magnet motor, which is more power-saving and efficient than ordinary screw air compressor motor;

2. Adopt the latest generation of integrated direct connection structure, which is more stable and energy efficient;

3. Only frequency conversion technology, permanent magnet frequency conversion air compressor can save energy by up to 42% compared with ordinary screw air compressor;

4. Soft start characteristics, increase current balance, avoid current impact on the motor;

5. Eliminate the inefficient conversion process of ordinary screw air compressors from full load to unloading, saving energy by 10%-20%.

Disadvantages of permanent magnet variable frequency air compressor:

1. The temperature of the motor is too hig

2. Risk of demagnetization

3. High failure rate

Maintanence Details:

How long does the air compressor need to be maintained?

1. 500 hours: When the air compressor runs for 500 hours, the oil filter element and air compressor lubricating oil should be changed for the first time after the new machine is used. Remove the air filter for cleaning and blow it out from the inside out with low pressure compressed air. Do not blow air from the outside to the inside to avoid clogging.

2. 2000 hours: When the air compressor runs for 2000 hours, check whether the pipe joints, bolts and terminal screws are loose, and tighten them if any. Replace the "three filters and one oil". Check all solenoid valves and whether the protection differential pressure switches operate normally.

3. 6000 hours: When the air compressor runs for 6000 hours, check the cooler and clean it if necessary; check the action and moving parts of the intake valve, and replenish or replace the motor grease. Clean the motor and fan motor, and clean the auto drain valve. Check minimum pressure valve and transducer, and calibrate relief valve.

4. When the air compressor runs for 20,000 hours, it is necessary to overhaul the head of the air compressor, replace the body bearing and oil seal, and adjust the clearance. The insulation of the measured motor should be above 1MΩ

Machine Image:

Factory&Warehouse Overview:

Main products:

•Rotary Screw Air Compressor(7.5KW~220KW)

•PM VSD Screw Air Compressor(7.5KW~160KW)

•Combined Screw Air Compressor System for Laser cutting(7.5KW,11KW,15KW)

•Two Stage PM VSD Screw Air Compressor(15KW~200KW)

•Low Pressure PM VSD Screw Air Compressor(7.5KW~132KW)

•Medium Pressure PM VSD Screw Air Compressor(11KW~250KW)

•Oil Free Water Lubrication Screw Air Compressor(7.5KW~250KW)

FAQ

1.Why customer choose us?
Shanghai LTC Compressor Co., Ltd specializes in Rotary Screw Air Compressor, integrating R&D, production, sales and service. High-level quality control and years of exporting experience help us win trust and loyalty of our customers around the world. Warmly welcome your inquiries and orders for quality test, more favorable sales conditions will be provided to support you expand local market if long-term partnership can be established.

2.Are you a manufacturer or trading company?
We are a professional manufacturer in China with over 25 years experience in air compressing solutions. We have 2 factories in Shenzhen, and our overseas business department is in Minhang district , Shanghai. OEM&ODM service is accepted.

3.What’s your delivery time?
For standard machines, we can deliver within 3-5 days. For customized machines or urgent orders, please contact our sales in advance.

4.How long is your air compressor warranty?
One year for the whole machine and two years for screw air end, except consumable parts such as air filter, oil filter, oil separator and precise filter elements.

5.How does your factory do regarding quality control?
International leading processing equipment and advanced manufacturing technology ensure LTC screw compressor with high efficiency, low noise, low power consumption, high reliability.

6.How long is the lifespan of your air compressor?
Generally, more than 10 years.

7. What's price term?
FOB, CIF, EXW, all are available, according to your requirements.
We have long-term cooperative shipping agent in sea shipping, much more professional and can help you save shipping cost.

8. What's payment term?
T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.

9.How about your after-sales service?
(1) Installation and commissioning online instructions.
(2) Well-trained engineers available for overseas service.
(3) Worldwide agents and after-sales service available.