Oil-Free Screw Air Compressor
Chicago Pneumatic OF Series — ISO 8573-1 Class 0 for Vapi Gujarat
Chicago Pneumatic OF Series oil-free rotary screw compressors deliver 100% oil-free air, certified to ISO 8573-1 Class 0 — the clean-air standard for pharma, food and electronics. Fixed & variable speed, 20 to 220 HP, up to 10 bar, up to 825 cfm. Supplied, installed & serviced by RR Enterprise — authorised Chicago Pneumatic dealer for Vapi & South Gujarat.
OF Series
ISO 8573-1 Class 0Chicago Pneumatic OF Series Oil-Free Screw Air Compressor
An oil-free screw air compressor compresses air with no oil in the compression chamber, so the air it delivers carries no oil at all. The Chicago Pneumatic OF Series is a range of oil-free rotary screw compressors certified to ISO 8573-1 Class 0 — 100% free of oil, aerosols and other contaminants. For industries where even a trace of oil would spoil the product or fail an audit, that certified purity is essential.
The OF Series covers 20 to 220 HP in both fixed speed (OF) and variable speed (OF…V) models, delivering up to 825 cfm at pressures up to 10 bar. World-class oil-free rotors, precision gears and superior air-end bearings keep efficiency high and the total cost of ownership low, while the Airlogic controller and ICONS remote monitoring keep the machine reliable.
For oil-tolerant duty, compare our standard screw compressors, or the iPM range for the lowest energy cost. RR Enterprise supplies, installs and services the full OF Series. Pair the compressor with air treatment and AIRnet piping for a complete clean-air system, and ask about the Warranty Service Package covering maintenance for up to 5 years.
Why Choose the Chicago Pneumatic OF Series
Because energy is around 70% of a compressor's 5-year operating cost, the OF…V variable speed models match air supply to demand and cut energy cost by an average of about 35% versus fixed speed — while still delivering certified Class 0 oil-free air.
100% Oil-Free, Class 0 Certified
World-class oil-free compression rotors deliver air with zero oil traces — certified to ISO 8573-1 Class 0 to protect sensitive production.
Low Cost of Ownership
Efficient inlet filter, premium-efficiency rotors and precision gears with low transmission loss keep energy use and running cost down.
Built for Harsh Conditions
Superior air-end bearings need no pre-lubrication; an enclosed fan-cooled motor is sealed against contaminants. The imperium inverter runs at full power from −20°C to 50°C.
Airlogic & ICONS Monitoring
The Airlogic controller plus ICONS remote monitoring track machine health, predict failures and optimise service — with ISO 50001-ready energy reports.
Where Oil-Free Air is Essential
Filter by application to see how Class 0 oil-free air protects each type of process.
Pharmaceutical
- Process & instrument air
- Tablet coating, drying, packaging
- Class 0 prevents batch contamination
- Audit-ready air purity
Food & Beverage
- Direct-contact & packaging air
- Bottling, filling, conveying
- No oil — food-safe air
- Protects product & brand
Electronics & Precision
- Clean assembly & testing air
- No oil mist on sensitive parts
- Consistent, dry, clean supply
- High-quality production air
Textile & Chemical
- Oil-free air for sensitive processes
- Spinning, weaving, finishing
- Stain-free fabric & product
- Reliable continuous-duty air
What is ISO 8573-1 Class 0 Air?
ISO 8573-1 is the international standard that grades compressed-air purity by oil content. Class 0 is the cleanest grade — even more stringent than Class 1 — meaning the air is certified 100% oil-free. Chicago Pneumatic OF Series compressors are Class 0 certified, so there is zero risk of oil contamination reaching your product or process.
| Class | Total Oil (aerosol, liquid, vapour) mg/m³ |
|---|---|
| 0 | As specified by user/supplier — more stringent than Class 1 (CP OF Series) |
| 1 | < 0.01 |
| 2 | < 0.1 |
| 3 | < 1 |
| 4 | < 5 |
OF Series — Fixed & Variable Speed
World-class oil-free rotors, precision gears and superior air-end bearings across the full range. Choose fixed speed for constant demand or variable speed (VSD) for fluctuating loads.
OF Series — OF20 to OF200
- Best for steady, continuous air demand
- Airlogic controller with ICONS remote monitoring
- 100% oil-free, no pre-lubrication needed
OF…V Series — OF30V to OF220V
- Matches air supply to fluctuating demand
- Cuts energy cost by an average of ~35%
- Runs at full power in extreme ambient heat or cold
Fixed Speed — OF 20 to OF 200 (20–200 HP)
| Model | Motor (HP/kW) | Pressure (bar) | FAD (cfm) | Weight (kg) |
|---|---|---|---|---|
| OF20 | 20 / 15 | 7.5 / 8.6 / 10 | 81 / 74 / 64 | 984 |
| OF25 | 25 / 18.5 | 7.5 / 8.6 / 10 | 102 / 98 / 76 | 1014 |
| OF30 | 30 / 22 | 7.5 / 8.6 / 10 | 125 / 112 / 95 | 1024 |
| OF40 | 40 / 30 | 7.5 / 8.6 | 167 / 157 | 1251 |
| OF50 | 50 / 37 | 7.5 / 8.6 | 204 / 195 | 1321 |
| OF60 | 60 / 45 | 7.5 / 8.6 | 242 / 231 | 1341 |
| OF75 | 75 / 55 | 7.5 / 8.6 | 295 / 290 | 1980 |
| OF100 | 100 / 75 | 7.5 / 8.6 | 426 / 386 | 2165 |
| OF125 | 125 / 90 | 7.5 / 8.6 | 502 / 475 | 2205 |
| OF150 | 150 / 110 | 7.5 / 8.6 | 651 / 606 | 2875 |
| OF175 | 175 / 132 | 7.5 / 8.6 | 770 / 689 | 2965 |
| OF200 | 200 / 145 | 7.5 / 8.6 | 820 / 759 | 3050 |
Variable Speed (VSD) — OF 30V to OF 220V (30–220 HP)
| Model | Motor (HP/kW) | Pressure (bar) | FAD Range (cfm) | Weight (kg) |
|---|---|---|---|---|
| OF30V-10 | 30 / 22 | 4 – 10 | 40 – 121 | 1091 |
| OF50V-8.6 | 50 / 37 | 4 – 8.6 | 87 – 216 | 1386 |
| OF75V-8.6 | 75 / 55 | 4 – 8.6 | 87 – 305 | 1386 |
| OF100V-8.6 | 100 / 75 | 4 – 8.6 | 263 – 445 | 2145 |
| OF125V-8.6 | 125 / 90 | 4 – 8.6 | 263 – 549 | 2145 |
| OF150V-8.6 | 150 / 110 | 4 – 8.6 | 341 – 678 | 2925 |
| OF175V-8.6 | 175 / 132 | 4 – 8.6 | 388 – 784 | 3015 |
| OF220V-8.6 | 220 / 160 | 4 – 8.6 | 388 – 825 | 3100 |
Fixed-speed FAD shown at the listed pressures; variable-speed FAD shown as the modulation range (min to max). All models certified ISO 8573-1 Class 0 oil-free. Full datasheet, dimensions & weights available on request.
Need Certified Oil-Free Air for Your Plant?
Tell us your required air flow (cfm), pressure (bar) and air-quality class — or your application. Our engineers size the right OF fixed or variable speed model and prepare a quotation, usually within 24–48 hours.
Authorised Chicago Pneumatic dealer — sales, installation & service across South Gujarat.
Common Questions — Oil-Free Screw Compressors
Everything you need to know about the Chicago Pneumatic OF Series in Vapi.
An oil-free screw air compressor compresses air without any oil in the compression chamber, so the delivered air contains no oil. Chicago Pneumatic OF Series oil-free rotary screw compressors deliver air certified to ISO 8573-1 Class 0 — 100% free of oil, aerosols and other contaminants — which is essential for industries where any oil carryover would damage the product or process. The range covers 20 to 220 HP in fixed and variable speed models.
ISO 8573-1 is the standard that classifies compressed-air purity. Class 0 is the cleanest class — the total oil content (aerosol, liquid and vapour) is specified by the user or supplier and is even more stringent than Class 1 (under 0.01 mg/m³). Chicago Pneumatic OF Series compressors are certified Class 0, meaning the air is 100% oil-free. This protects sensitive production in pharma, food, electronics and similar industries.
Any industry where oil contamination would spoil the product, process or safety needs oil-free air. The most common are pharmaceuticals, food and beverage, electronics, textiles, and fine chemicals. In these applications even a trace of oil can ruin a batch or fail an audit, so ISO 8573-1 Class 0 oil-free air from a Chicago Pneumatic OF compressor is the safe choice.
The OF Series covers 20 to 220 HP. Fixed speed models (OF20 to OF200) deliver from about 64 to 820 cfm, and variable speed models (OF30V to OF220V) modulate output up to about 825 cfm at working pressures up to 10 bar. RR Enterprise will size the right model and configuration for your plant.
Yes. The OF Series includes variable speed (VSD) models — OF30V to OF220V — that match air supply to demand and cut energy cost by an average of around 35% versus fixed speed. They use the imperium inverter designed for compressed air, which runs at full power in high ambient temperatures from -20°C to 50°C.
Yes. RR Enterprise is an authorised Chicago Pneumatic dealer for Vapi, Silvassa, Daman and South Gujarat — supplying genuine CP OF Series oil-free screw compressors with local installation, AMC, genuine spare parts and 24/7 service support.
