ZR 55-90 (FF)

50 Hz
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type bar(e) l/s m³/min kW dB(A)
ZR 55 Minimum 7.5 169.9 10.2 55 71
ZR 55 Effective 8.6 156.3 9.4 55 71
ZR 55 Maximum 10 140.7 8.4 55 74
ZR 75 Minimum 7.5 224.6 13.5 75 69
ZR 75 Effective 8.6 214.7 12.9 75 69
ZR 75 Maximum 10 204.8 12.3 75 74
ZR 90 Minimum 7.5 267.2 16.0 90 72
ZR 90 Effective 8.6 250.7 15.0 90 72
ZR 90 Maximum 10 263.4 14.2 90 74
50 Hz
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type psig l/s cfm hp dB(A)
ZR 55 Minimum 100 169.9 360.2 75 71
ZR 55 Effective 125 156.3 332.0 75 71
ZR 55 Maximum 145 140.7 296.6 75 74
ZR 75 Minimum 100 224.6 476.7 100 69
ZR 75 Effective 125 214.7 455.6 100 69
ZR 75 Maximum 145 204.8 434.4 100 74
ZR 90 Minimum 100 267.2 565.0 120 72
ZR 90 Effective 125 250.7 529.7 120 72
ZR 90 Maximum 145 263.4 501.5 120 74
ImperialMetric Units
60 Hz
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type bar(e) l/s m³/min kW dB(A)
ZR 55 Effective 8.6 161.7 9.7 55 70
ZR 55 Maximum 10 142.7 8.6 55 74
ZR 75 Effective 8.6 226.1 13.6 75 70
ZR 75 Maximum 10 200.3 12.0 75 74
ZR 90 Effective 8.6 262.1 15.7 90 71
ZR 90 Maximum 10 240.8 14.5 90 74
60 Hz
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type psig l/s cfm hp dB(A)
ZR 55 Effective 125 161.7 342.6 75 70
ZR 55 Maximum 150 142.7 303.7 75 74
ZR 75 Effective 125 226.1 480.3 100 70
ZR 75 Maximum 150 200.3 423.8 100 74
ZR 90 Effective 125 262.1 554.4 120 71
ZR 90 Maximum 150 240.8 512.1 120 74
ImperialMetric Units

ZR 75-90 VSD (FF)

Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type bar(e) l/s m³/min kW dB(A)
ZR 75 VSD – 8.6 Minimum 4 75.6 – 239.5 4.6 – 14.4 75 70
ZR 75 VSD – 8.6 Effective 7 74.7 – 229.4 4.48 – 13.8 75 70
ZR 75 VSD – 8.6 Maximum 8.6 74.1 – 208.6 4.4 – 12.5 75 70
ZR 75 VSD – 10.4 Minimum 4 82.6 – 239.2 4.3 – 14.35 75 74
ZR 75 VSD – 10.4 Effective 9 81.7 – 202.9 5.0 – 12.2 75 74
ZR 75 VSD – 10.4 Maximum 10.4 81.3 – 184.6 4.9 – 11.1 75 74
ZR 90 VSD – 8.6 Minimum 6 75.1 – 297.2 4.51 – 17.8 90 71
ZR 90 VSD – 8.6 Effective 7 74.1 – 282.5 4.4 – 16.9 90 71
ZR 90 VSD – 8.6 Maximum 8.6 73.6 – 258.1 4.42 – 15.5 90 71
ZR 90 VSD – 10.4 Minimum 6 76.5 – 292.9 4.6 – 17.6 90 74
ZR 90 VSD – 10.4 Effective 9 75.5 – 250.5 4.53 – 15.0 90 74
ZR 90 VSD – 10.4 Maximum 10.4 75.0 – 229.2 4.5 – 13.7 90 74
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type psig l/s cfm hp dB(A)
ZR 75 VSD – 8.6 Minimum 58 75.6 – 239.5 160.2 – 507.5 100 70
ZR 75 VSD – 8.6 Effective 100 74.7 – 229.4 158.2 – 486.1 100 70
ZR 75 VSD – 8.6 Maximum 125 74.1 – 208.6 157 – 442 100 70
ZR 75 VSD – 10.4 Minimum 87 82.6 – 239.2 175 – 506.8 100 74
ZR 75 VSD – 10.4 Effective 130 81.7 – 202.9 173.1 – 429.9 100 74
ZR 75 VSD – 10.4 Maximum 150 81.3 – 184.6 172.3 – 391.1 100 74
ZR 90 VSD – 8.6 Minimum 58 75.1 – 297.2 159.1 – 629.7 120 71
ZR 90 VSD – 8.6 Effective 100 74.1 – 282.5 157 – 598.6 120 71
ZR 90 VSD – 8.6 Maximum 125 73.6 – 258.1 155.9 – 546.9 120 71
ZR 90 VSD – 10.4 Minimum 87 76.5 – 292.9 162.1 – 620.6 120 74
ZR 90 VSD – 10.4 Effective 130 75.5 – 250.5 160 – 530.8 120 74
ZR 90 VSD – 10.4 Maximum 150 75.0 – 229.2 158.9 – 485.6 120 74
ImperialMetric Units

ZT 55-90 (FF)

50 Hz
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type bar(e) l/s m³/min kW dB(A)
ZT 55 Minimum 7.5 166.3 10 55 76
ZT 55 Effective 8.6 153.0 9.2 55 75
ZT 55 Maximum 10 137.4 8.2 55 76
ZT 75 Minimum 7.5 221.2 13.3 75 78
ZT 75 Effective 8.6 211.4 12.7 75 78
ZT 75 Maximum 10 201.5 12.1 75 74
ZT 90 Minimum 7.5 263.9 15.8 90 79
ZT 90 Effective 8.6 247.4 14.8 90 77
ZT 90 Maximum 10 233.0 14.0 90 79
50 Hz
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type psig l/s cfm hp dB(A)
ZT 55 Minimum 100 166.3 352.4 75 76
ZT 55 Effective 125 153.0 324.2 75 75
ZT 55 Maximum 145 137.4 291.1 75 76
ZT 75 Minimum 100 221.2 468.7 100 78
ZT 75 Effective 125 211.4 447.9 100 78
ZT 75 Maximum 145 201.5 427.0 100 74
ZT 90 Minimum 100 263.9 559.2 120 79
ZT 90 Effective 125 247.4 524.2 120 77
ZT 90 Maximum 145 233.0 493.7 120 79
ImperialMetric Units
60 Hz
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type bar(e) l/s m³/min kW dB(A)
ZT 55 Effective 8.6 158.4 9.5 55 77
ZT 55 Maximum 10 139.3 8.4 55 79
ZT 75 Effective 8.6 222.8 13.4 75 79
ZT 75 Maximum 10 197.0 11.8 75 76
ZT 90 Effective 8.6 258.7 15.5 90 78
ZT 90 Maximum 10 237.4 14.2 90 78
60 Hz
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type psig l/s cfm hp dB(A)
ZT 55 Effective 125 158.4 335.6 75 77
ZT 55 Maximum 150 139.3 295.1 75 79
ZT 75 Effective 125 222.8 472.1 100 79
ZT 75 Maximum 150 197.0 417.4 100 76
ZT 90 Effective 125 258.7 548.1 120 78
ZT 90 Maximum 150 237.4 503.0 120 78
ImperialMetric Units

ZT 75-90 VSD (FF)

Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type bar(e) l/s m³/min kW dB(A)
ZT 75 VSD – 8.6 Minimum 4 72.2 – 236.1 4.33 – 14.2 75 78
ZT 75 VSD – 8.6 Effective 7 71.2 – 226.0 4.27 – 13.6 75 78
ZT 75 VSD – 8.6 Maximum 8.6 70.7 – 205.2 4.24 – 12.3 75 78
ZT 75 VSD – 10.4 Minimum 6 79.2 – 235.8 4.8 – 14.1 75 76
ZT 75 VSD – 10.4 Effective 9 78.2 – 199.6 4.7 – 12.0 75 76
ZT 75 VSD – 10.4 Maximum 10.4 77.8 – 181.3 4.67 – 10.9 75 76
ZT 90 VSD – 8.6 Minimum 4 71.7 – 293.9 4.3 – 17.6 90 78
ZT 90 VSD – 8.6 Effective 7 70.6 – 279.1 4.24 – 16.7 90 78
ZT 90 VSD – 8.6 Maximum 8.6 70.1 – 254.7 4.2 – 15.3 90 78
ZT 90 VSD – 10.4 Minimum 6 73.0 – 289.5 4.4 – 17.4 90 77
ZT 90 VSD – 10.4 Effective 9 72.0 – 247.1 4.3 – 14.8 90 77
ZT 90 VSD – 10.4 Maximum 10.4 71.5 – 225.7 4.29 – 13.5 90 77
Type Working pressure (1) Free Air Delivery (2) Installed motor power (3) Noise level (4)
Type psig l/s cfm hp dB(A)
ZT 75 VSD – 8.6 Minimum 58 72.2 – 236.1 153 – 500 100 78
ZT 75 VSD – 8.6 Effective 100 71.2 – 226.0 150.9 – 478.9 100 78
ZT 75 VSD – 8.6 Maximum 125 70.7 – 205.2 149.8 – 434.8 100 78
ZT 75 VSD – 10.4 Minimum 87 79.2 – 235.8 167.8 – 499.6 100 76
ZT 75 VSD – 10.4 Effective 130 78.2 – 199.6 165.7 – 422.6 100 76
ZT 75 VSD – 10.4 Maximum 150 77.8 – 181.3 164.8 – 384.1 100 76
ZT 90 VSD – 8.6 Minimum 58 71.7 – 293.9 151.9 – 622.7 120 78
ZT 90 VSD – 8.6 Effective 100 70.6 – 279.1 149.6 – 591.4 120 78
ZT 90 VSD – 8.6 Maximum 125 70.1 – 254.7 148.5 – 539.7 120 78
ZT 90 VSD – 10.4 Minimum 87 73.0 – 289.5 154.7 – 613.4 120 77
ZT 90 VSD – 10.4 Effective 130 72.0 – 247.1 152.6 – 523.6 120 77
ZT 90 VSD – 10.4 Maximum 150 71.5 – 225.7 151.5 – 478.2 120 77
ImperialMetric Units

(1 + 2) Unit performance measured according to ISO 1217, Annex C & E, Edition 4 (2009). Reference conditions: relative humidity 0%, absolute inlet pressure: 1 bar (14.5 psi), intake air temperature: 20°C (68°F). Free Air Delivery (FAD) is measured at the following working pressures: 7.5 bar versions at 7 bar, 8.6 bar versions at 8 bar, 10 bar versions at 9.5 bar. For VSD at 7 bar. For the working pressure of the FF variant, please contact Atlas Copco.
(3) The installed motor power might deviate depending on the options, voltages and pressure variants.
(4) A-weighted emission sound pressure level at the work station (LpWSAd). Measured according to ISO 2151: 2008 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.

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