NUAIR Piston Compressor - Heavy Duty Range

NUAIR Piston Compressors - Heavy Duty Range NUAIR’s Heavy Duty Range is built for demanding shop and industrial use where steady air output and long service life matter. These belt-driven piston compressors deliver up to 175 psi with heavy-duty cooling and protection features for tougher daily workloads. Key Features Easy to view oil sight glass Oversized ball bearing Balanced flywheel Aluminum aftercooler for better cooling Heavy duty metal frame belt guard Radiator MAG starter Vertical Compressor Designed for fixed shop installation with strong cooling support for continuous, heavy-duty operation. Vertical V-Pump Compressor Built for higher-demand applications with V-pump design and enhanced cooling support. Horizontal Compressor Built for high-demand applications requiring strong airflow and long run times. Up to 10 HP, 120-gallon tank, and 175 psi. Duplex Compressor Designed for higher air demand and added redundancy with a duplex (two-pump) configuration. Up to 20 HP, 200-gallon tank, and 175 psi. Technical Specifications Model P/N Pump Tank (Gal) Power (HP) Power Supply (V/Ph) Cylinders (nr.) Stages (nr.) Max. Pressure (psi) R.P.M. Air Displacement (cfm @ 0–40 psi) Air Displacement (cfm @ 0–90 psi) Gross Weight (lb) Gross Dimensions (L×W×H in) HEAVY DUTY - VERTICAL K31-80G V 5HP 1/230 SLXH7D4NUU505 K31 80 5 230 / 1 2 2 175 860 20.7 19.9 560 38×40×76.5 K31-80G V 5HP 3/230 SLXH7D1NUU519 K31 80 5 230 / 3 2 2 175 860 20.7 19.9 560 38×40×76.5 K31-80G V 5HP 3/460 SLXH7D1NUU524 K31 80 5 460 / 3 2 2 175 860 20.7 19.9 560 38×40×76.5 K31-80G V 7.5HP 1/230 SLXH8D4NUU506 K31 80 7.5 230 / 1 2 2 175 1130 26.3 25.2 570 38×40×76.5 K31-80G V 7.5HP 3/230 SLXH8D1NUU507 K31 80 7.5 230 / 3 2 2 175 1130 26.3 25.2 570 38×40×76.5 K31-80G V 7.5HP 3/460 SLXH8D1NUU525 K31 80 7.5 460 / 3 2 2 175 1130 26.3 25.2 570 38×40×76.5 K61-80G V 7.5HP 1/230 SNXH8D4NUU508 K61 80 7.5 230 / 1 4 2 175 660 32.5 31.3 672 48×38×80.8 K61-80G V 7.5HP 3/230 SNXH8D1NUU509 K61 80 7.5 230 / 3 4 2 175 660 32.5 31.3 672 48×38×80.8 K61-80G V 7.5HP 3/460 SNXH8D1NUU526 K61 80 7.5 460 / 3 4 2 175 660 32.5 31.3 672 48×38×80.8 K61-120G V 10HP 3/230 SNTV9D1NUU510 K61 120 10 230 / 3 4 2 175 880 43.6 42.1 845 48×38×85.1 K61-120G V 10HP 3/460 SNTV9D1NUU527 K61 120 10 460 / 3 4 2 175 880 43.6 42.1 845 48×38×85.1 HEAVY DUTY - HORIZONTAL K50-120G H 7.5HP 1/230 SMTH8D4NUU521 K50 120 7.5 230 / 1 2 2 175 780 25.9 24.6 839 32×78×64.3 K50-120G H 7.5HP 3/230 SMTH8D1NUU522 K50 120 7.5 230 / 3 2 2 175 780 25.9 24.6 839 32×78×64.3 K50-120G H 7.5HP 3/460 SMTH8D1NUU532 K50 120 7.5 460 / 3 2 2 175 1000 31.4 30 839 32×78×64.3 K50-120G H 10HP 3/230 SMTH9D1NUU514 K50 120 10 230 / 3 2 2 175 1000 31.4 30 839 32×78×64.3 K50-120G H 10HP 3/460 SMTH9D1NUU528 K50 120 10 460 / 3 2 2 175 1000 31.4 30 839 32×78×64.3 K61-120G H 10HP 3/230 SNTH9D1NUU523 K61 120 10 230 / 3 4 2 175 880 43.6 42.2 1432 32×78×65.9 K61-120G H 10HP 3/460 SNTH9D1NUU533 K61 120 10 460 / 3 4 2 175 880 87.2 84.3 1432 32×78×65.9 HEAVY DUTY - DUPLEX K50-120G H 2X7.5HP 1/230 SMUH8D4NUU516 K50 120 15 (2×7.5) 230 / 1 2 2 175 780 51.7 49.1 1055 32×78×64.3 K50-120G H 2X7.5HP 3/230 SMUH8D1NUU515 K50 120 15 (2×7.5) 230 / 3 2 2 175 780 51.7 49.1 1055 32×78×64.3 K50-120G H 2X7.5HP 3/460 SMUH8D1NUU529 K50 120 15 (2×7.5) 460 / 3 2 2 175 780 51.7 49.1 1055 32×78×64.3 K50-120G H 2X10HP 3/230 SMUH9D1NUU517 K50 120 20 (2×10) 230 / 3 2 2 175 1000 62.8 60 1208 32×78×64.3 K50-120G H 2X10HP 3/460 SMUH9D1NUU530 K50 120 20 (2×10) 460 / 3 2 2 175 1000 62.8 60 1208 32×78×64.3 K61-200G H 2X10HP 3/230 SNRH9D1NUU511 K61 200 20 (2×10) 230 / 3 4 2 175 880 87.2 84.3 1432 32×78×65.9 K61-200G H 2X10HP 3/460 SNRH9D1NUU531 K61 200 20 (2×10) 460 / 3 4 2 175 880 87.2 84.3 1432 32×78×65.9