Atlas Copco

ZR/ZT55-90 and ZR/ZT90 VSD
Oil-free rotary screw air compressors

Features

  • Completely oil-free, ready-to-use package
  • Air and watercooled versions
  • Low cooling water consumption with watercooled variant
  • Few consumables
  • True performance as per ISO 1217, Annex C, Ed. 3
  • Consistent performance over the lifetime
  • Operator and service friendly
  • Silenced package


The new Atlas Copco Z 55-90 series is the tangible proof that rational design, a high level of integration and superior performance can be united in one product.

This next generation of oil-free screw compressors combine a wider pressure range and a higher flow rate with a lower specific energy requirement.

Minimal external piping, a very low vibration level and high mechanical integrity ensure a trouble-free future.

This range includes the high energy saving ZR/ZT 90 VSD – Variable Speed Drive – variants for quality air at the lowest cost. Impressive energy savings slash up to 25% from your life cycle cost, ensuring early return on your investment.

The Range ZR watercooled oil-free compressors

Model Motor KW Maximum working pressure bar(e) Free air delivery (l/s) Cooling water consumption (l/s) Noise dB(A) Aftercooler approach temperature °C
50 Hz Units            
ZR55
 55 7.5 143 0.9 65 6
ZR55
 55 8.6 131 0.9 65 6
ZR55
 55 10 121 0.9 65 6
ZR75
 75 7.5 194 1.2 65 6
ZR75
 75 8.6 184 1.2 65 6
ZR75
 75 10 174 1.2 65 6
ZR90
 90 7.5 234 1.4 65 6
ZR90
 90 8.6 220 1.4 65 6
ZR90
 90 10 209 1.5 65 6
ZR90VSD
 90 9 258 1.5 65 10
ZR90VSD
 90 10.403
 232 1.5 65 10
60 Hz Units
            
ZR55
 55 7.25 155 1 65 6
ZR55
 55 9 138 1 65 6
ZR55
 55 10.4 128 1 65 6
ZR75
 75 7.25 213 1.3 65 6
ZR75
 75 9 194 1.3 65 6
ZR75
 75 10.4 185 1.4 65 6
ZR90
 90 7.25 262 1.6 65 6
ZR90
 90 9 235 1.6 65 6
ZR90
 90 10.4 224 1.6 65 6
ZR90VSD
 90 9 258 1.5 65 10
ZR90VSD
 90 10.4 232 1.5 65 10