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DSP Series Oil Free Air Compressors

CERTIFIED CLASS 0 Oil FREE AIR. OPTIMIZED FOR ENERGY EFFICIENCY.  

The DSP Series brings advanced oil free operations right where it is needed: your facility!

Built on Hitachi engineering, the DSP is designed to supply oil free air reliably and efficiently— today and tomorrow.

  • Innovative Air End Construction 
  • Oil Mist Remover 
  • Motorized Isolation Valve 

 

 

Models vary by region. Please contact your Sullair sales representative for more details.

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Specs Contact Us
DSP 90

Flow

117 - 1303 cfm
3.3 - 36.9 m³/min

Pressure

125 psi
8.6 bar

Power

30 - 300 hp
22 - 240 kW

Features & Benefits

Innovative Air End Construction

Key features: 

  • Rotor design, material and coating optimized for efficiency
    • Stainless steel rotors in 1st and 2nd stage
    • Patented PTFE-free rotor coating
    • Rotor housing coated internally

Benefits:

  • All aspects of the air end have been carefully engineered to provide long life and high efficiency
    • The stainless steel rotors, patented rotor coating and coated housing provide long life of air end

Patented High Pre-Cooler Design (Air Cooled Units)

Key features: 

  • Stainless steel high pre-cooler placed before aftercooler

Benefits: 

  • Helps prevent thermal fatigue and premature failure of the aftercooler, providing higher reliability and durability

Motorized Isolation Valve (MIV) 

Key features: 

  • Located at the compressed air discharge, the MIV helps avoid migration of moisture back into the compressor package when the DSP is not running
    • Opens when the motor is running and closes when the motor is off

Benefits: 

  • Provides additional protection for the compressor against downstream humidity – one of the biggest enemies of oil free screw compressors

Oil Mist Remover (OMR) 

Key features: 

  • Removes oil mist from gearcase with 99.99% efficiency
  • Maintains gearcase at negative pressure

Benefits: 

  • Recaptured oil mist is returned, reducing gearcase top offs needed — saving you money
  • Helps ensure a cleaner production environment around the compressor

Capacity Control System

Fixed Speed
Key features: 

  • Spool type — simple design
  • Pneumatically controlled
  • Designed to operate 1 million cycles/year

Benefits: 

  • High reliability and durability
  • Lower maintenance cost
  • Longer maintenance intervals

Variable Speed Drive (VSD) 
Key features: 

  • No inlet valve on VSD
  • Two speed reduction
  • Turndown works always in the most efficient range of specific power. Below turndown DSP works load/unload at minimum point of turndown

Benefits: 

  • No restriction means no air losses at inlet
  • Minimize power consumption at unload condition
  • Power consumption at no load is reduced up to 30% vs fixed speed of same model

Hitachi Motors

Key features: 

  • IE3, TEFC and IP44 (Fixed Speed 22-240 kW models and VSD 160-240 kW models)
  • TEFC, DCBL-PPM and IE4 (DSP37V, DSP55V and DSP75V models)

Benefits: 

 

  • Support provided in house — no external motor suppliers to navigate
  • Motors are high efficiency and very compact

VSD Fan Motors 
Available on DSP22-75

Benefits: 

  • More efficient cooling system

Hitachi Inverters

Benefits: 

  • Support provided in house — no external inverter suppliers to navigate

Phase Monitor

Benefits: 

  • Protects the compressor against improper reverse rotation at startup

Warranty

  • All DSP Series Compressors feature a 3 year package warranty* when continuously serviced with genuine
    DSP parts
*Restrictions apply

Options

Fixed Speed Model Options

  • NEMA 4
    • For electrical panel and controller
  • Weather Hood + NEMA 4
    • Includes rain protection cover and intake louvers protection
  • Cold Weather Package
    • Includes oil sump heater, control box heater and thermostat, heat trace control and condensate lines
    • Available only with air cooled models
  • AWA Container — all weather enclosure

Models & Specs

60 Hz
Fixed Speed 

  • DSP2209AY - 30 hp (22 kW), 125 psig (8.6 barg), 117 cfm (3.3 m³/min) 
  • DSP3009AY - 40 hp (30 kW), 125 psig (8.6 barg), 141 cfm (4.0 m³/min)
  • DSP3709AY - 50 hp (37 kW), 125 psig (8.6 barg), 166 cfm (4.7 m³/min)
  • DSP4509AY - 60 hp (45 kW), 125 psig (8.6 barg), 230 cfm (6.5 m³/min)
  • DSP5509AY - 75 hp (55 kW), 125 psig (8.6 barg), 272 cfm (7.7 m³/min)
  • DSP7509AY - 100 hp (75 kW), 125 psig (8.6 barg), 392 cfm (11.1 m³/min)
  • DSP9009AY - 125 hp (90 kW), 125 psig (8.6 barg), 544 cfm (15.4 m³/min)
  • DSP11009AY - 150 hp (110 kW), 125 psig (8.6 barg), 611 cfm (17.3 m³/min)
  • DSP13210AY - 175 hp (132 kW), 125 psig (8.6 barg), 742 cfm (21.0 m³/min)
  • DSP14510AY - 200 hp (145 kW), 125 psig (8.6 barg), 805 cfm (22.8 m³/min)
  • DSP16010AY - 215 hp (160 kW), 125 psig (8.6 barg) 894 cfm (25.3 m³/min)
  • DSP20010AY - 250 hp (200 kW), 125 psig (8.6 barg), 1169 cfm (33.1 m³/min)
  • DSP24010AY - 300 hp (240 kW), 125 psig (8.6 barg), 1296 cfm (36.7 m³/min)
  • DSP4509WY - 60 hp (45 kW), 125 psig (8.6 barg), 236 cfm (6.7 m³/min)
  • DSP5509WY - 75 hp (55 kW), 125 psig (8.6 barg), 279 cfm (7.9 m³/min)
  • DSP7509WY - 100 hp (75 kW), 125 psig (8.6 barg), 399 cfm (11.3 m³/min)
  • DSP9009WY - 125 hp (90 kW), 125 psig (8.6 barg), 551 cfm (15.6 m³/min)
  • DSP11009WY - 150 hp (110 kW), 125 psig (8.6 barg), 622 cfm (17.6 m³/min)
  • DSP13209WY - 175 hp (132 kW), 125 psig (8.6 barg), 770 cfm (21.8 m³/min) 
  • DSP14509WY - 200 hp (145 kW), 125 psig (8.6 barg), 837 cfm (23.7 m³/min)
  • DSP16009WY - 215 hp (160 kW), 125 psig (8.6 barg), 925 cfm (26.2 m³/min)
  • DSP20009WY - 250 hp (200 kW), 125 psig (8.6 barg), 1169 cfm (33.1 m³/min)
  • DSP24009WY - 300 hp (240 kW), 125 psig (8.6 barg), 1303 cfm (36.9 m³/min)

60 Hz

Variable Speed

  • DSP3709AV - 50 hp (37 kW), 125 psig (8.6 barg), 162 cfm (4.6 m³/min)
  • DSP5509AV - 75 hp (55 kW), 125 psig (8.6 barg), 272 cfm (7.7 m³/min)
  • DSP7509AV - 100 hp (75 kW),125 psig (8.6 barg), 385 cfm (10.9 m³/min)
  • DSP9009AV - 125 hp (90 kW), 125 psig (8.6 barg), 544 cfm (15.4 m³/min)
  • DSP11009AV - 150 hp (110 kW), 125 psig (8.6 barg), 611 cfm (17.3 m³/min)
  • DSP5509WV - 75 hp (55 kW), 125 psig (8.6 barg), 283 cfm (8.0 m³/min)
  • DSP7509WV - 100 hp (75 kW), 125 psig (8.6 barg), 403 cfm (11.4 m³/min)
  • DSP9009WV - 125 hp (90 kW), 125 psig (8.6 barg), 551 cfm (15.6 m³/min)
  • DSP11009WV -150 hp (110 kW), 125 psig (8.6 barg), 622 cfm (17.6 m³/min)
  • DSP16009WV - 215 hp (160 kW), 125 psig (8.6 barg), 925 cfm (26.2 m³/min)
  • DSP24009WV - 300 hp (240 kW), 125 psig (8.6 barg), 1303 cfm (36.9 m³/min)
Additional models available from 70 to 145 psi. Contact your authorized Sullair distributor for specifications and more information.

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