Atlas Copco Air Compressors Oil-Injected Rotary Screw GA 7-37 VSD+

Tip：The GA 7-37 VSD⁺ series is Atlas Copco's new generation of oil-lubricated screw compressors, designed for medium-sized industrial users. The series combines variable frequency drive technology (VSD⁺) with IE4 ultra-efficient permanent magnet motors, dynamically adjusting the motor speed to match actual gas demand, saving an average of 50% energy. Its compact structure fits the narrow space of the workshop, with built-in inverter and integrated refrigeration dryer, providing plug-and-play clean compressed air solutions, covering multiple fields such as manufacturing, food processing, and automotive parts.

The Atlas Copco GA 7-37 VSD+ is a high-efficiency, oil-injected screw compressor featuring variable frequency drive (VSD⁺) technology and an internal permanent magnet motor (iPM, IE4 efficiency rating). This compressor automatically adjusts motor speed based on actual air demand, achieving an average energy saving of 50% and a 37% reduction in lifecycle costs. Its operating pressure range is 4-13 bar(e), and its air displacement (FAD) ranges from 24.5 to 418.9 m³/h (approximately 15 to 116 l/s).

This compressor features a compact vertical design and integrates a direct drive system (gearless/belt-less), a novel radial fan (low noise), and a dedicated Neos inverter, reducing component count and simplifying maintenance. Equipped with an Elektronikon® touch controller and SMARTLINK remote monitoring system, it supports multi-unit coordinated control (up to six units) and real-time energy efficiency optimization. An optional integrated dryer provides ISO 8573-1 Class 0 oil-free air, making it suitable for demanding environments such as automotive, manufacturing, and mining.

1.Intelligent variable frequency energy saving technology (VSD⁺)

Dynamic response to load: The motor speed matches the gas demand in real time to avoid no-load energy consumption, saving 35%-50% energy compared with fixed frequency models.

IE4 permanent magnet motor: patented iPM (embedded permanent magnet) technology, efficiency exceeds the international IE4 standard, starting torque is increased by 30%, and it can adapt to voltage fluctuation environments.

2.Integrated Energy Efficiency System

Energy Recovery (ER System): Recovers 78% of the waste heat from the compressor and converts it into hot water or warm air for process heating or workshop heating, saving up to $15,000 in energy costs per year.

Integrated refrigerated dryer and oil-water separator**: Factory pre-installed to ensure outlet air dew point ≤3°C, oil content ≤3 ppm, in compliance with ISO 8573-1 Class 2 standard, eliminating the cost of post-processing equipment.

3.Reliability and intelligent monitoring

Triple protection design: IP55 protection grade motor, shock-resistant cast aluminum housing, anti-corrosion coating, suitable for dusty, high temperature and humid workshop environment.

SMARTLINK IoT platform: real-time monitoring of air pressure, energy consumption, fault codes, predicting maintenance needs, reducing downtime risk by 40%.

1.Automobile manufacturing: air supply for spraying robots (no oil contamination risk), assembly line tool drive.

2.Food and beverage: pneumatic control of filling machines (in compliance with ISO air purity standards), vacuum adsorption of packaging lines.

3.Pharmaceutical industry: clean room airlock control, closed conveying of granular materials (low dew point moisture proof).

4.Electronic assembly: precision component purging (stable pressure to prevent damage), SMT placement machine operation.

5.Plastic molding: pneumatic valves of injection molding machines, mold cooling systems.

6.Case reference: Mexico's BIC factory uses the GA VSD⁺ series, which centrally controls multiple machines and reduces energy consumption by 20%.

1.Vertical stacking design: The dryer, control cabinet, and main unit are vertically integrated, which reduces the footprint by 30% (compared to traditional horizontal models), making it suitable for workshops with limited space.

2.Element X-tend™ screw main unit: Asymmetric profile design, volumetric efficiency increased by 12%, and maintenance cycle extended to 8,000 hours.

3.Quiet operation: Fully enclosed soundproof cover + sound-absorbing cotton, noise ≤70 dB(A) (equivalent to the sound level of daily conversation), can be directly installed in the production workshop.

4.[GA 37VSD⁺ structural diagram] Left: Vertical layout of the whole machine; right: Heat recovery pipeline logo

1.Industry authority certification：

Complies with ISO 9001 (quality), ISO 14001 (environment), ISO 1217 (performance testing) standards.

API 617 (centrifuge), API 614 (oil line) industrial safety certification (extended to screw machine process).

2.Customer Testimonials：

Coca-Cola North America (Russ Bruner, Facilities Engineer):"The compressors are extremely quiet, and we installed them directly in the warehouse, saving the cost of building a compressor room."

3.Relm West Label Printing (Production Director):

"GA55VSD⁺'s built-in dryer ensures that the printing equipment is free of condensation and the failure rate is reduced by 90%."

1.Full life cycle support：

Basic package: genuine filter element + lubricant annual set (10% off for direct purchase on the official website).

Full responsibility maintenance plan: including labor + spare parts + emergency response, and promises 99% online rate.

SMARTLINK remote diagnosis: free 3-month trial, real-time push equipment health report.

Hydrogen energy upgrade service: compatible with future hydrogen compression transformation (based on GT centrifuge technology accumulation).

2.Quick response guarantee：

48-hour direct delivery of spare parts in Asia Pacific.

Free commissioning + operator training for the first start-up.

Q1: Is the VSD⁺ inverter suitable for unstable voltage grids?

Yes. The iPM motor has a built-in voltage regulator module that supports ±10% voltage fluctuations, and an optional voltage regulator cabinet can be used to cope with extreme grids.

Q2: How to connect the heat recovery system to the existing boiler?

Provide flange interface (DN40 standard), with free pipeline design drawings; the recovered water temperature can reach 70°C, directly connected in series with the heating network.

Q3: Compared with traditional GA fixed frequency machines, does the maintenance cost of VSD⁺ higher?

No. VSD⁺ uses a brushless motor, which saves the cost of replacing carbon brushes; the lubrication cycle is the same as that of fixed frequency machines (8,000 hours), and intelligent early warning reduces the cost of repairing sudden failures.

Q4: Does it support multiple joint control?

Yes. 1-24 compressors (including different brands) can be linked through the ES central controller, started and stopped on demand, and high-efficiency units are called first.

 Note： The new EU energy efficiency regulations will take effect in 2025. Upgrading VSD⁺ can help you comply in advance!

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