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Get 20% off your next purchase.
$20,000.00
The Atlas Copco ZR/ZT 55-90 VSD FF oil-free air compressors are focused on effectively saving energy, ensuring product safety – only oil-free machines exclude contamination risks for 100% – and guaranteeing the utmost reliability around the clock.

The shortest route to superior productivity is to minimize operational cost while maintaining an uninterrupted supply of the right quality of air. The Atlas Copco ZR/ZT 55-90 VSD FF Oil-free Air Compressors are focused on effectively saving energy, ensuring product safety – only oil-free machines exclude contamination risks for 100% – and guaranteeing the utmost reliability around the clock. Not just today, but day after day, year after year, with minimal maintenance cost, few service interventions and long overhaul intervals.
| Core technology
Atlas Copco masters each compression principle and offers the most energy efficient technology for the application. Fixed speed machines are efficient at full load but when air demand fluctuates, a Variable Speed Drive ensures substantial savings. The integrated adsorption dryer offers high quality dry air with the lowest pressure drop and uses the heat of the compressor for regeneration. Two features that lead to significant energy savings. |
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| Optimal use
Central control of a multi-compressor installation reduces vthe pressure band and achieves the lowest overall energy cost. Heat of compression can be recovered and put to good use in industrial processes like pre-heating of boiler feed water, heating of buildings etc. |
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| Oil-free compression
Atlas Copco ZR/ZT 55-90 VSD FF Oil-free Air Compressors have compressor chambers completely free of oil. This is possible because there is no metal contact between the precision cut rotors and hence no need for lubrication. Process, products and environment are safeguarded from contamination. The first air compressors TUV-certified as “oil-free” (ISO 8573-1 CLASS 0). |
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| The integrated design
Internal piping, high end design features, Variable Speed Drive, 100% matched components… the only way to ensure total reliability. Each machine is tested to ensure it meets specifications, complete security and no surprises. The Atlas Copco ZR/ZT 55-90 VSD FF Oil-free Air Compressors are truly plug-and-play. Put it on a flat floor, connect the power line and the air outlet… and push the start button. |
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| Global presence – local service
Our aftermarket product portfolio is designed to add maximum value for our customers by ensuring the optimum availability and reliability of their compressed air equipment with the lowest possible operating costs. We deliver this complete service guarantee through our extensive service organization, maintaining our position as leader in compressed air. |
Contents
Atlas Copco is renowned for designing and manufacturing some of the most durable oil-free screw compressors. The Atlas Copco ZR/ZT 55-90 VSD FF Oil-free Air Compressors comes out of this strong tradition. Ideal for industries where high-quality oil-free air is key, the Atlas Copco ZR/ZT 55-90 VSD FF Oil-free Air Compressors offers the highest reliability and safety in combination with extremely low energy costs.
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Food & beverage
• 100% pure, clean, oil-free air for all kinds of applications (e.g. fermentation, packaging, aeration, transportation, filling & capping, cleaning, instrument air). Electronics • Clean, dry, high-quality air is essential, produced with optimal energy efficiency. Petrochemicals • A dependable stream of 100% certified oil-free compressed air is crucial to keep the production up and running. Pharmaceuticals • 100% oil-free air is vital to prevent contamination of processes (e.g. fermentation, aeration, tablet coating, packing and bottling, automated production lines). |

| 1.Energy recovery
• With our integrated energy recovery system, it is feasible to recover up to 90% of the power input as hot air or hot water. |
2.Water separator
• The labyrinth design efficiently separates the condensate from the compressed air. |
| 3.Efficient & reliable water cooling (ZR)
• Corrosion resistant stainless steel tubing. |
4.Full Feature
• Compact, all-in-one quality air solution. |
| 5.Totally enclosed motor
• IP55 TEFC protection against dust and humidity. |
6.Effective electronic
regulating drains |

| 1.High efficiency air cooling (ZT)
• Stainless steel pre-cooler with fins. |
2.World class oil-free compression element
• 100% oil-free rotary screw compression for high quality air. |
| 3.Superior element bearings
• High stability under varying load conditions. |
4.Advanced Elektronikon® unit controller
• One integrated control system for compressor and dryer. |
| 5.Integrated VSD
• Direct energy savings up to 35% with Variable Speed Drive (VSD) motor. |
6.AGMA A5/DIN Class 5 gears in the main drive
• Long lifetime. |
Over 80% of a compressor’s lifecycle cost is taken up by the energy it consumes. Moreover, the generation of compressed air can account for more than 40% of a plant’s total electricity bill. To cut your energy costs, Atlas Copco pioneered Variable Speed Drive (VSD) technology in the compressed air industry. VSD leads to major energy savings, while protecting the environment for future generations. Thanks to continual investments in this technology, we offer the widest range of integrated VSD compressors on the market.
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Energy savings of up to 35%
Our VSD technology closely follows the air demand by automatically adjusting the motor speed. This results in large energy savings of up to 35%. Total compressor lifecycle cost ●Energy |
1.The Elektronikon® controls both the compressor and the integrated converter, ensuring maximum machine safety within parameters.
2.Flexible pressure selection from 4 to 10.4 bar with VSD reduces electricity costs.
3.Specific converter and motor design (with protected bearings) for the highest efficiency across the speed range.
4.Electric motor specifically designed for low operating speeds with clear attention to motor cooling and compressor cooling requirements.
5.All our VSD compressors are EMC tested and certified. Compressor operation does not influence external sources and vice versa.
6.Mechanical enhancements ensure that all components operate below critical vibration levels throughout the entire compressor speed range.
7.A highly efficient frequency converter in a cubicle ensures stable operation in high ambient temperatures up to 50°C/122°F (standard up to 40°C/104°F).
8.No ‘speed windows’ that can jeopardize the energy savings and the stable net pressure. Turndown capability of the compressor is maximized to 70-75%.
9.Net pressure band is maintained within 0.10 bar, 1.5 psi.
| Type | Free air delivery(1) | Installed motor | Noise level(2) | Weight | ||||||
| Standard | Full Feature | |||||||||
| I/s | m3/min | cfm | kW | hp | dB(A) | kg | lb | kg | lb | |
| 50 Hz | ||||||||||
| ZR 55 – 7.5 | 148.3 | 8.9 | 314 | 55 | 75 | 74 | 1800 | 3968 | 2050 | 4519 |
| ZR 55 – 8.6 | 133.9 | 8.0 | 284 | 55 | 75 | 74 | 1800 | 3968 | 2050 | 4519 |
| ZR 55 – 10 | 123.1 | 7.4 | 261 | 55 | 75 | 74 | 1800 | 3968 | 2050 | 4519 |
| ZR 75 – 7.5 | 204.6 | 12.3 | 434 | 75 | 100 | 74 | 1890 | 4167 | 2135 | 4707 |
| ZR 75 – 8.6 | 189.6 | 11.4 | 402 | 75 | 100 | 74 | 1890 | 4167 | 2135 | 4707 |
| ZR 75 – 10 | 181.2 | 10.9 | 384 | 75 | 100 | 74 | 1890 | 4167 | 2135 | 4707 |
| ZR 90 – 7.5 | 241.4 | 14.5 | 511 | 90 | 120 | 74 | 1925 | 4244 | 2175 | 4795 |
| ZR 90 – 8.6 | 227.6 | 13.7 | 482 | 90 | 120 | 74 | 1925 | 4244 | 2175 | 4795 |
| ZR 90 – 10 | 214.6 | 12.9 | 455 | 90 | 120 | 74 | 1925 | 4244 | 2175 | 4795 |
| 60 Hz | ||||||||||
| ZR 55 – 7.25 | 160.2 | 9.6 | 340 | 55 | 75 | 74 | 1800 | 3968 | 2050 | 4519 |
| ZR 55 – 9 | 140.6 | 8.4 | 298 | 55 | 75 | 74 | 1800 | 3968 | 2050 | 4519 |
| ZR 55 – 10.4 | 130.2 | 7.8 | 276 | 55 | 75 | 74 | 1800 | 3968 | 2050 | 4519 |
| ZR 75 – 7.25 | 217.1 | 13.0 | 460 | 75 | 100 | 74 | 1890 | 4167 | 2135 | 4707 |
| ZR 75 – 9 | 200.1 | 12.0 | 424 | 75 | 100 | 74 | 1890 | 4167 | 2135 | 4707 |
| ZR 75 – 10.4 | 192.1 | 11.5 | 407 | 75 | 100 | 74 | 1890 | 4167 | 2135 | 4707 |
| ZR 90 – 7.25 | 268.1 | 16.1 | 568 | 90 | 120 | 74 | 1925 | 4244 | 2175 | 4795 |
| ZR 90 – 9 | 240.9 | 14.5 | 510 | 90 | 120 | 74 | 1925 | 4244 | 2175 | 4795 |
| ZR 90 – 10.4 | 230.9 | 13.9 | 489 | 90 | 120 | 74 | 1925 | 4244 | 2175 | 4795 |
| Type | Free air delivery(1) | Installed motor | Noise level(2) | Weight | ||||||
| Standard | Full Feature | |||||||||
| I/s | m³/min | cfm | kW | hp | dB(A) | kg | lb | kg | lb | |
| 50 Hz | ||||||||||
| ZT 55 – 7.5 | 146.3 | 8.8 | 310 | 55 | 75 | 76 | 1900 | 4189 | 2520 | 5556 |
| ZT 55 – 8.6 | 132.7 | 8,0 | 281 | 55 | 75 | 76 | 1900 | 4189 | 2520 | 5556 |
| ZT 55 – 8.6 HAT (3) | 122.5 | 7.4 | 260 | 55 | 75 | 76 | 1900 | 4189 | 2520 | 5556 |
| ZT 55 – 10 | 122.3 | 7.3 | 259 | 55 | 75 | 76 | 1900 | 4189 | 2520 | 5556 |
| ZT 75 – 7.5 | 200.9 | 12.1 | 426 | 75 | 100 | 76 | 2000 | 4409 | 2600 | 5732 |
| ZT 75 – 8.6 | 186.7 | 11.2 | 396 | 75 | 100 | 76 | 2000 | 4409 | 2600 | 5732 |
| ZT 75 – 8.6 HAT (3) | 178.8 | 10.7 | 379 | 75 | 100 | 76 | 2000 | 4409 | 2600 | 5732 |
| ZT 75 – 10 | 178.7 | 10.7 | 379 | 75 | 100 | 76 | 2000 | 4409 | 2600 | 5732 |
| ZT 90 – 7.5 | 236.0 | 14.2 | 500 | 90 | 120 | 76 | 2050 | 4519 | 2650 | 5842 |
| ZT 90 – 8.6 | 223.3 | 13.4 | 473 | 90 | 120 | 76 | 2050 | 4519 | 2650 | 5842 |
| ZT 90 – 8.6 HAT (3) | 211.4 | 12.7 | 448 | 90 | 120 | 76 | 2050 | 4519 | 2650 | 5842 |
| ZT 90 – 10 | 211.3 | 12.7 | 448 | 90 | 120 | 76 | 2050 | 4519 | 2650 | 5842 |
| 60 Hz | ||||||||||
| ZT 55 – 7.25 | 157.8 | 9.5 | 334 | 55 | 75 | 76 | 1900 | 4189 | 2520 | 5556 |
| ZT 55 – 8.6 HAT (3) | 129.5 | 7.8 | 274 | 55 | 75 | 76 | 1900 | 4189 | 2520 | 5556 |
| ZT 55 – 9 | 139.2 | 8.4 | 295 | 55 | 75 | 76 | 1900 | 4189 | 2520 | 5556 |
| ZT 55 – 10.4 | 129.3 | 7.8 | 274 | 55 | 75 | 76 | 1900 | 4189 | 2520 | 5556 |
| ZT 75 – 7.25 | 212.8 | 12.8 | 451 | 75 | 100 | 76 | 2000 | 4409 | 2600 | 5732 |
| ZT 75 – 8.6 HAT (3) | 189.2 | 11.4 | 401 | 75 | 100 | 76 | 2000 | 4409 | 2600 | 5732 |
| ZT 75 – 9 | 196.7 | 11.8 | 417 | 75 | 100 | 76 | 2000 | 4409 | 2600 | 5732 |
| ZT 75 – 10.4 | 189.1 | 11.3 | 401 | 75 | 100 | 76 | 2000 | 4409 | 2600 | 5732 |
| ZT 90 – 7.25 | 261.3 | 15.7 | 554 | 90 | 120 | 76 | 2050 | 4519 | 2650 | 5842 |
| ZT 90 – 8.6 HAT (3) | 226.9 | 13.6 | 481 | 90 | 120 | 76 | 2050 | 4519 | 2650 | 5842 |
| ZT 90 – 9 | 236.1 | 14.2 | 500 | 90 | 120 | 76 | 2050 | 4519 | 2650 | 5842 |
| ZT 90 – 10.4 | 226.8 | 13.6 | 481 | 90 | 120 | 76 | 2050 | 4519 | 2650 | 5842 |
(1) Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009).
Reference conditions:
– Relative humidity: 0%.
– Absolute inlet pressure: 1 bar (14.5 psi).
– Intake air temperature: 20°C/68°F.
FAD is measured at the following working pressures: Fixed speed:
– 7.25/7.5/7 bar versions at 7 bar.
– 8.6/9 bar versions at 8 bar.
– 10/10.4 bar versions at 9 bar.
For VSD: at their maximum working pressure.
(2) A-weighted emission sound pressure level at the work station (LpWSAd).
Measured according to ISO 2151: 2004 using ISO 9614/2 (sound intensity scanning method).
The added correction factor (+/- 3 dB(A)) is the total uncertainty value (KpAd) conform with the test code.
(3) Maximum intake/cooling air temperature is 50°C/122 °F for HAT versions.
| Type | Working pressure(1) | Free air delivery(2) | Noise level (3) | Weight | ||||||
| Standard | Full Feature | |||||||||
| bar(e) | I/s | m³/min | cfm | dB(A) | kg | lb | kg | lb | ||
| ZR 75 VSD – 8.6 bar (e) | Minimum | 4 | 76 – 259 | 4.6 – 15.5 | 161 – 548 | 74 | 1925 | 4244 | 2170 | 4784 |
| Effective | 7 | 75 – 222 | 4.5 – 13.3 | 158 – 470 | ||||||
| Maximum | 8.6 | 74 – 201 | 4.4 – 12.1 | 157 – 426 | ||||||
| ZR 75 VSD – 10.4 bar (e) | Minimum | 4 | 76 – 259 | 4.6 – 15.5 | 161 – 549 | 74 | 1925 | 4244 | 2170 | 4784 |
| Effective | 9 | 74 – 196 | 4.4 – 11.8 | 157 – 415 | ||||||
| Maximum | 10.4 | 96 – 178 | 5.8 – 10.7 | 203 – 377 | ||||||
| ZR 90 VSD – 8.6 bar (e) | Minimum | 4 | 76 – 259 | 4.6 – 15.5 | 161 – 548 | 74 | 1970 | 4343 | 2220 | 4894 |
| Effective | 7 | 75 – 258 | 4.5 – 15.5 | 158 – 548 | ||||||
| Maximum | 8.6 | 74 – 240 | 4.4 – 14.4 | 157 – 509 | ||||||
| ZR 90 VSD – 10.4 bar (e) | Minimum | 4 | 76 – 259 | 4.6 – 15.5 | 161 – 549 | 74 | 1970 | 4343 | 2220 | 4894 |
| Effective | 9 | 74 – 237 | 4.4 – 14.2 | 157 – 502 | ||||||
| Maximum | 10.4 | 96 – 221 | 5.8 – 13.3 | 203 – 469 | ||||||
| Type | Working pressure(1) | Free air delivery(2) | Noise level (3) | Weight | ||||||
| Standard | Full Feature | |||||||||
| bar(e) | I/s | m³/min | cfm | dB(A) | kg | lb | kg | lb | ||
| ZT 75 VSD – 8.6 bar (e) | Minimum | 4 | 75 – 252 | 4.5 – 15.1 | 160 – 534 | 76 | 2030 | 4475 | 2630 | 5798 |
| Effective | 7 | 75 – 217 | 4.5 – 13.0 | 158 – 460 | ||||||
| Maximum | 8.6 | 74 – 198 | 4.4 – 11.9 | 157 – 420 | ||||||
| ZT 75 VSD – 10.4 bar (e) | Minimum | 4 | 75 – 252 | 4.5 – 15.1 | 159 – 534 | 76 | 2030 | 4475 | 2630 | 5798 |
| Effective | 9 | 74 – 193 | 4.4 – 11.6 | 157 – 409 | ||||||
| Maximum | 10.4 | 96 – 176 | 5.7 – 10.6 | 203 – 373 | ||||||
| ZT 90 VSD – 8.6 bar (e) | Minimum | 4 | 75 – 252 | 4.5 – 15.1 | 160 – 535 | 76 | 2100 | 4630 | 2700 | 5952 |
| Effective | 7 | 75 – 252 | 4.5 – 15.1 | 158 – 534 | ||||||
| Maximum | 8.6 | 74 – 235 | 4.4 – 14.1 | 157 – 498 | ||||||
| ZT 90 VSD – 10.4 bar (e) | Minimum | 4 | 75 – 252 | 4.5 – 15.1 | 159 – 534 | 76 | 2100 | 4630 | 2700 | 5952 |
| Effective | 9 | 74 – 232 | 4.4 – 13.9 | 157 – 492 | ||||||
| Maximum | 10.4 | 96 – 217 | 5.7 – 13.0 | 203 – 460 | ||||||
(1) For the working pressure of the FF variant, please consult Atlas Copco.
(2) Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009).
Reference conditions:
– Relative humidity 0%.
– Absolute inlet pressure: 1 bar (14.5 psi).
– Intake air temperature: 20°C/68°F.
FAD is measured at the following working pressures: Fixed speed:
– 7.25/7.5/7 bar versions at 7 bar.
– 8.6/9 bar versions at 8 bar.
– 10/10.4 bar versions at 9 bar.
For VSD: at their maximum working pressure.
(3) A-weighted emission sound pressure level at the work station (LpWSAd).
Measured according to ISO 2151: 2004 using ISO 9614/2 (sound intensity scanning method).
The added correction factor (+/- 3 dB(A)) is the total uncertainty value (KpAd) conform with the test code.
| Type | Standard | Full Feature | ||||||||||
| A (Length) | B (Width) | C (Height) | A (Length) | B (Width) | C (Height) | |||||||
| mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | |
| ZR 55-90 | 2180 | 85.8 | 1450 | 57.1 | 2184 | 86.0 | 2180 | 85.8 | 1450 | 57.1 | 2184 | 86.0 |
| ZR 75-90 VSD | 2180 | 85.8 | 1450 | 57.1 | 2184 | 86.0 | 2180 | 85.8 | 1450 | 57.1 | 2184 | 86.0 |
| ZT 55-90 | 2180 | 85.8 | 1450 | 57.1 | 2184 | 86.0 | 2880 | 113.4 | 1450 | 57.1 | 2184 | 86.0 |
| ZT 75-90 VSD | 2180 | 85.8 | 1450 | 57.1 | 2184 | 86.0 | 2880 | 113.4 | 1450 | 57.1 | 2184 | 86.0 |
If you need Atlas Copco ZR/ZT 55-90 VSD FF Oil-free Air Compressors brochure, please click the link below to view or download it.
Atlas Copco ZRZT 55-90 (FF) & ZRZT 75-90 VSD (FF) Oil-free Screw Compressors
| 重量 | 2500.00 公斤 |
|---|---|
| 尺寸 | 280 × 150 × 200 厘米 |
| Capacity FAD l/s | 20 l/s – 2,506 l/s |
| Capacity FAD | 71 m³/h – 9,022 m³/h |
| Working Pressure | 3.5 bar(g) – 13 bar(g) |
| Installed motor power | 55 kW – 900 kW |
| Capacity FAD m³/min | 1 m³/min – 150 m³/min |
| Country of Origin | CN |
| HS Code | 8414804990 |
| Lead Time | 30-45Days |
| MOQ | 1 Unit |
| Packaging | Wooden Crate |
| Product Quality | 100% Genuine, 100% Original, Brand New |
| Transaction Mode | CFR, CIF, CIP, CPT, DAP, DDP, EXW, FCA |
Anonymous_buyer –
Highly satisfied with this investment.
We installed the Atlas Copco ZR 90 VSD FF oil-free air compressor in our facility, and it has exceeded expectations. The air quality is exceptionally clean, which is critical for our production process. The VSD feature optimizes energy use, significantly lowering our electricity costs. It operates quietly and reliably, even during peak demand. Maintenance has been minimal so far. Overall, it’s an efficient, high-performance solution that delivers consistent results.