Atlas Copco GA37VSD+FF Oil Injected Rotary Screw Air Compressor
The Atlas Copco GA37 VSD+ FF is a 37 kW oil injected rotary screw air compressor that combines a variable speed drive with an integrated full-feature package—including an internal refrigerant dryer—in a single compact floor-standing unit.
Integrated Full-Feature Design
The FF designation indicates that the compressed air dryer is built directly into the compressor canopy, eliminating the need for a separate downstream unit. This saves valuable floor space, reduces piping connections, and requires no separate electrical supply.
Variable Speed Drive Technology
The variable speed drive on the GA37 VSD+ continuously adjusts motor speed in response to actual compressed air demand. When production demand decreases, motor speed decreases accordingly. When demand increases, motor speed rises to match. This eliminates the inefficient cycling between full load and unloaded running common in fixed-speed machines, which consume power during unloaded periods without delivering output.
Key Performance Features
- Integrated FF dryer processes compressed air to a pressure dew point of +3°C
- Protects downstream pipework and pneumatic equipment from condensation
- Dryer shares the compressor's control system for automatic operation
- No separate dryer startup procedure required
- Eliminates risk of dryer being bypassed during shift changes
Robust Construction & Monitoring
Built around the Atlas Copco oil injected air end designed specifically for the 37 kW power class, the GA37 VSD+ FF operates within its designed mechanical envelope. The Elektronikon controller monitors discharge temperature, working pressure, filter condition, and running hours, generating service reminders and alerts for developing faults before they reach shutdown levels.
Compact Installation Footprint
The integrated dryer eliminates the additional floor area typically required for a standalone dryer. Installation requires only a single electrical connection, a single compressed air outlet, and a condensate drain connection.
Supplier Information
As one of the most professional suppliers of Atlas Copco products from China, we specialize in 100% genuine Atlas Copco equipment with over 19 years of experience. Our team provides 24-hour technical support and on-site service. We maintain an extensive inventory with over 4000 square meters of warehouse space, ensuring 80% of parts are available for quick delivery. Our first-hand sources, competitive pricing, and professional service team make us the preferred Atlas Copco supplier.
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Frequently Asked Questions
We currently run a fixed speed GA37 with a separate refrigerant dryer. What is the realistic energy saving if we switch to the GA37 VSD+ FF, and how do we calculate it for our specific site?
The energy saving from switching to a VSD depends entirely on your actual demand profile—specifically, how much time your current fixed speed compressor spends running unloaded or partially loaded. A fixed speed compressor running at near-full load consistently across the shift delivers less VSD benefit than one that cycles frequently between load and unload due to variable demand. To calculate the saving for your site, log your current compressor's load factor over a representative week—most Elektronikon controllers record this data. If your average load factor is below 70%, the GA37 VSD+ will deliver meaningful energy reduction. If your load factor is consistently above 85%, the saving is smaller and the payback period is longer. Share your logged load factor data and we model the expected saving against your current energy tariff.
The integrated FF dryer is rated to +3 °C pressure dew point. Does this meet the air quality standard for our pneumatic tooling and general manufacturing air supply, or do we need additional downstream drying?
A +3°C pressure dew point from the integrated FF dryer meets ISO 8573-1 Class 4 for water content and is adequate for the majority of pneumatic tooling, general manufacturing, and assembly applications where condensation prevention is the primary requirement. It is not sufficient for applications requiring instrument-grade dry air, breathing air, or processes sensitive to moisture at low ambient temperatures where pipework may cool below the dew point. If your application includes outdoor pipework in cold climates, precision instrumentation, or moisture-sensitive processes, supplementary drying to a lower dew point is required downstream of the GA37 VSD+ FF. Describe your application and we advise whether the integrated dryer output meets your process requirement or whether additional treatment is needed.
We are considering the GA37 VSD+ FF for a site where ambient temperature reaches 45 °C in summer. Is the compressor rated to operate at that ambient, and does the integrated dryer performance change at high ambient?
The standard GA37 VSD+ FF is rated for a maximum ambient temperature of 46°C, so operation at 45°C ambient is within the rated envelope but at the upper limit. At elevated ambient, the integrated refrigerant dryer works harder to achieve the rated +3°C dew point because the incoming compressed air temperature is higher. Dryer performance remains within specification at rated ambient, but consistent operation at or near the ambient limit reduces the thermal margin on both the compressor cooling system and the dryer refrigerant circuit. Ensure the installation space has adequate ventilation and that hot exhaust air from the compressor canopy cannot recirculate back to the inlet. Provide your site ventilation details and we confirm whether the installation layout will maintain acceptable ambient conditions at the compressor inlet throughout the summer months.
Contact us with your required working pressure, site supply voltage, and ambient temperature range for configuration confirmation and availability.
