Manufacturer – Factory Direct Price – 75KW Screw Air Compressor Supplier
Introduction
The OSG single-stage variable-frequency screw air compressor integrates high-efficiency permanent magnet motor technology with 1:1 direct drive, delivering exceptional energy savings, stable high-volume output, and significantly reduced operational noise. With fewer moving parts and a rugged compact structure, it minimizes daily maintenance while offering a reliable, long-lasting solution that perfectly replaces traditional reciprocating compressors. Widely applied in automotive manufacturing, machining, food & beverage, pharmaceutical, electronics assembly, and packaging lines, the OSG series ensures consistent air quality and low operating costs. The intelligent control system with RS485 communication enables remote monitoring via mobile or PC, providing real-time parameter display, maintenance alerts, and energy data analysis—simplifying complex operations into a user-friendly experience.
Technical Parameter
| Model | 10A | 15A | 20A | 25A | 30A | 40A | 50A | 60A | |
| 1.2/0.7 | 1.65/0.7 | 2.5/0.7 | 3.2/0.7 | 3.8/0.7 | 5.3/0.7 | 6.8/0.7 | 7.4/0.7 | ||
| Free air delivery / Discharge pressure (m³/min / MPa) |
1.1/0.8 | 1.5/0.8 | 2.3/0.8 | 3.0/0.8 | 3.6/0.8 | 5.0/0.8 | 6.2/0.8 | 7.0/0.8 | |
| 0.95/1.0 | 1.3/1.0 | 2.1/1.0 | 2.7/1.0 | 3.2/1.0 | 4.5/1.0 | 5.6/1.0 | 6.2/1.0 | ||
| 0.8/1.25 | 1.1/1.25 | 1.9/1.25 | 2.4/1.25 | 2.7/1.25 | 4.0/1.25 | 5.0/1.25 | 5.6/1.25 | ||
| Lubricating oil quantity (L) |
4 | 7.5 | 14 | 14 | 14 | 30 | 30 | 30 | |
| Driving mode | Direct drive | ||||||||
| Power supply | 380V/50Hz/3P or customized | ||||||||
| Power (kW) | 7.5 | 11 | 15 | 18.5 | 22 | 30 | 37 | 45 | |
| Startup mode | Y-Δ start-up | ||||||||
| Dimension (mm) | 850*670*870 | 1100*750*920 | 1250*850*1160 | 1350*1000*1190 | |||||
| Outlet diameter | G¼ | G¼ | G1 | G1 | G1 | G1¼ | G1¼ | G1¼ | |
| Model | 75A | 100A | 120A | 150A | 175A | 200A | 250A | 300A | 350A |
| Free Air Delivery / Discharge Pressure (m³/min / MPa) | 10.0/0.7 | 13.4/0.7 | 16.2/0.7 | 21.0/0.7 | 24.5/0.7 | 28.7/0.7 | 32.0/0.7 | 36.0/0.7 | 42.0/0.7 |
| 9.6/0.8 | 12.6/0.8 | 15.0/0.8 | 19.8/0.8 | 23.2/0.8 | 27.6/0.8 | 30.4/0.8 | 34.3/0.8 | 40.5/0.8 | |
| 8.5/1.0 | 11.2/1.0 | 13.8/1.0 | 17.4/1.0 | 20.5/1.0 | 24.6/1.0 | 27.4/1.0 | 30.2/1.0 | 38.2/1.0 | |
| 7.6/1.25 | 10.0/1.25 | 12.3/1.25 | 14.8/1.25 | 17.4/1.25 | 21.5/1.25 | 24.8/1.25 | 27.7/1.25 | 34.5/1.25 | |
| Lubricating Oil Quantity (L) | 65 | 65 | 72 | 90 | 90 | 110 | 110 | 125 | 125 |
| Driving Mode | Direct drive | ||||||||
| Power (kW) | 55 | 75 | 90 | 110 | 132 | 160 | 185 | 220 | 250 |
| Startup Mode | Y-Δ Start-up | ||||||||
| Dimension (mm) | 1800*1230*1570 | 1900*1230*1570 | 2300*1470*1840 | 2650*1650*2045 | 3300*2100*2190 | ||||
| Weight (kg) | 1073 | 1272 | 1327 | 1801 | 1848 | 2400 | 2600 | 3100 | 3300 |
| Outlet Diameter | G2 | G2 | G2 | G2½ | G2½ | G2½ | G2½ | DN100 | DN100 |
Core Advantages
- Automotive parts manufacturing and paint spraying lines
- CNC machining, stamping, injection molding, and other mechanical processing equipment
- Food & beverage and pharmaceutical industries requiring clean, oil-free compressed air
- Electronics component production and automated assembly lines
- Packaging, printing, and textile light industrial sectors
- Retrofit projects replacing outdated reciprocating compressors for energy-saving upgrades
Application
- Automotive parts manufacturing and paint spraying lines
- CNC machining, stamping, injection molding, and other mechanical processing equipment
- Food & beverage and pharmaceutical industries requiring clean, oil-free compressed air
- Electronics component production and automated assembly lines
- Packaging, printing, and textile light industrial sectors
- Retrofit projects replacing outdated reciprocating compressors for energy-saving upgrades
FAQ
Q1: What are the main advantages over reciprocating compressors?
A: The OSG screw compressor delivers 20–35% lower energy consumption, quieter operation (≤75 dB), and pulse-free, stable air output. It eliminates daily draining and valve plate replacements, requires far less maintenance, and offers significantly lower total operating costs.
Q2: Is the variable-frequency model suitable for fluctuating air demand?
A: Absolutely. The VFD system smoothly modulates output from 15% to 100% capacity in response to real-time demand, preventing wasteful loading/unloading cycles and minimizing pressure fluctuations.
Q3: Can the compressor be integrated into my existing MES or SCADA system?
A: Yes. The OSG series comes standard with RS485 (Modbus protocol), with optional Ethernet interfaces available. It supports data acquisition, remote start/stop, and centralized monitoring for seamless integration into your digital factory management system.
Q4: How complex is routine maintenance, and how often is it required?
A: Very simple. Daily tasks are limited to checking oil level and draining condensate (both prompted by the controller). The first maintenance service is due after 500 operating hours, followed by intervals of 2,000–3,000 hours for oil, air filter, and oil filter replacement—all with an automatic countdown reminder from the intelligent controller.
Q5: What are the ambient operating conditions and power supply requirements?
A: Ambient temperature: 0–45°C; relative humidity: ≤90% (non-condensing). Standard power supply: 380V/50Hz/3-phase. Other voltage configurations are available upon request.
Q6: What warranty and after-sales support do you offer?
A: We provide a 12-month or 2,000 operating-hour warranty (whichever comes first). Nationwide service centers ensure a 48-hour on-site response, with regular inspections and maintenance training included.
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