For industrial applications with a consistent demand for air, oil-lubricated rotary screw air compressors are an efficient, hard-working solution. One of the most rugged compressor options on the market, oil-lubricated rotary screw air compressors are easy to maintain, function well in environments with both high and low temperatures, and are designed to operate at 100% duty cycle. 

These workhorses are ideal for serious air demands and are also one of the most energy-efficient options on the market. TMI Compressed Air offers a full range of oil-lubricated rotary screw air compressors, with capabilities to meet anything from 15-3000cfm and 100-300psi.

Advantages of an Oil Lubricated Rotary Screw Air Compressor

Rotary screw air compressors have long been an industry favorite, prized for their exceptional output capabilities and their consistent airflow delivery. Here are just a few of the reasons to choose an oil-lubricated rotary screw air compressor:

  • High air-flow rates
  • Easy to maintain
  • Small footprint with large output
  • Rotary screw air compressors operate at 100% duty cycle
  • Designed to function in both high and low-temperature conditions
  • Energy efficient
  • Long lifespan

Because oil-lubricated rotary screw air compressors are rugged, reliable, and run continuously, they’re the most popular choice for many industrial, production, and medical facilities. Oil-lubricated rotary screw compressor components do not grind together, ensuring a longer lifespan for parts and guaranteeing your investment in an air compressor that’s sure to last for years to come.

Sullair Oil Lubricated Rotary Screw Air Compressors

Sullair started their business with the Sullair S-Energy oil-lubricated rotary screw air compressor. Since 1965, their technology and equipment has improved, but one thing has stayed the same: Sullair is a leading name in rotary screw air compressors. 

Their exceptional technology, combined with their understanding of the consumer’s need for durability, reliability, and energy efficiency are just a few of the reasons we’re proud to offer Sullair oil-lubricated rotary screw air compressors. A few of Sullair’s most popular lines include:

Sullair S-Energy


Sullair’s flagship line of compressors, the S-Energy line is unparalleled in efficiency, footprint, ease of maintenance, and warranty coverage. The S-Energy series is best known as Sullair’s line of compressors that save so much energy, they often pay for themselves in as little as two years. One of the industry’s quietest air compressors, TMI is always proud to install S-energy models for our clients. With hundreds of machines personally installed by our team in West Michigan, we can say with confidence that this is an exceptional choice if you’re looking for ease of service and overall product satisfaction.

A few of the reasons our customers love the S-Energy series include:

  • First-in-class efficiency
  • Smallest footprint with continuous output
  • Quietest
  • Easiest to maintain
  • 10 year limited warranty

If you’re looking for an oil-lubricated rotary screw air compressor that provides significant energy savings while delivering reliable, continuous air to your operation, the S-Energy series might just be the option for you. TMI’s team of technicians and engineers can help you determine which S-Energy compressor is right for your compressed air system.


  • Sullair Legendary air end
  • Low-restriction inlet valve
  • Low carryover air/oil separator design
  • High-efficiency drive and fan motor
  • NEMA 4 Wye-Delta starter cabinet
  • TEFC Motor
  • WS microprocessor
  • Compact footprint
  • Genuine Sullube 10,000-hour non-varnishing, biodegradable compressor fluid
  • Optimalair air filter providing 10 times better filtration than other filters
  • Air end, motor, and receiver tank mounted on rubber isolators for quiet performance
  • Insulated intake and exhaust louvers
  • Low-noise fan



  • Easy push-button, metered valve allows for sampling while the machine is in operation
  • Simplifies maintaining you Diamond Warranty


  • Robust, reliable, and compact
  • Maximum efficiency
  • Operating consistency


  • Oversized two-piece design helps eliminate thermal shock
  • Integrated moisture separator
  • Rated at 46° C / 115° F


  • Easy access allows change without disturbing hubs
  • Designed for air/end motor protection


  • Provides industry’s finest inlet filtration
  • Keeps fluid clean and extended internal component life
  • Reduced pressure drop during operating life results in energy savings
  • 99.95%+ overall efficiency/0.4 micron


  • High-efficiency media
  • Low-pressure drop for reduced power consumption
  • Less than 1.5 ppm carryover reduced make-up fluid


  • Asymmetrical rotors made in the USA
  • Durable
  • Proven bearing design
  • Backed by 10-year Diamond Warranty

ShopTek Air Compressors

5hp – 100hp

Sullair ShopTek air compressors are truly designed with the end consumer in mind. Built with a goal to redefine industry standards for continuous duty compressors, Sullair’s ShopTek line features a conveniently small footprint, with all of the durable workhorse features you’ve come to expect from Sullair.

ShopTek air compressors are built to help your plant get work done with ease. Exceptionally low maintenance and superior reliability make this an air compressor you can depend on for continuous air in any application

ShopTek air compressors come standard with:

  • Legendary Sullair Air End
  • 10,000-hour Genuine Sullube factory fill
  • 5-year Emerald Warranty — providing coverage on major components, including the air end; air/fluid receiver; main drive motor; fluid cooler; and aftercooler

ShopTek Compressors can be packaged with a tank, refrigerated air dryer, or desiccant air dryer, and filtration for the most compact footprint. The TMI engineering team is happy to help you determine the best compressed air system for your facility and application.


25hp – 100hp


  • ASME certified tank
  • High-quality/low carryover (less than 2 ppm)
  • Access panel for easy removal and serviceability
  • Fluid sight glass


  • Easy access for maintenance
  • Thermostatically controlled air cooler helps eliminate condensation in oil and lower temps
  • The efficient combo cooler design
  • Aftercooler is single pass


  • High-efficiency filter
  • Protect key components from premature failure
  • Extends separator, fluid filter, and fluid life
  • Easy access for maintenance


  • EC Controller
    • Clear and concise graphic display
    • Monitors the status of key operating parameters
  • Modulation Control
    • Stabilizes system pressure
    • Reduced cycling – extends life of wearing components
  • Wye-Delta starter


  • Asymmetrical rotors made in the USA
  • Durable
  • Proven bearing design



  • Provides efficient power transmission
  • Ensures alignment and smooth operation


  • Slow-running, premium efficient 1800 rpm

Large Electric Air Compressors

125hp – 600hp

Since the company’s founding in Michigan City, Indiana in 1965, Sullair has been an industry leader in compressed air solutions, most especially for industrial applications in need of large compressed air systems. If you’re looking for a rugged, reliable compressed air system that can deliver continuous, consistent air in even the harshest industrial conditions, look no further than Sullair’s large electric air compressors. 

Both Sullair’s single-stage and two-stage large rotary screw compressors provide first-in-class efficiency, without sacrificing reliability. From 125-600hp, 434-3000 cfm, and 100-175 psi, Sullair’s large electric air compressors are the industry benchmark for durability.

Sullair Large Electric Rotary Screw Air Compressors Offer:

  • Broad operating range
  • Choice of environmentally compatible compressor fluids
    • Choose from Genuine Sullube, a non-varnishing and biodegradable fluid, or Pristine FG, a long-lasting Food Grade lubricant.
  • Continuous duty
  • Legendary Sullair air end
  • Longer average bearing life, designed for over 100,000 hours of service
  • Air-cooled or water-cooled models
  • Premium efficient motors