ELGi/Rotair D185T4F Mobile Air Compressor

The ELGi D185T4F portable diesel-powered air compressor delivers 185 CFM at 100 PSI, making it ideal for demanding construction and industrial tasks. With a Tier 4 Final-compliant engine and towable design, it offers reliable, fuel-efficient performance wherever the job takes you.

Description

Powerful Performance on the Move: ELGi D185T4F Diesel Portable Compressor

The ELGi D185T4F is a high-performance, diesel-powered portable compressor built to handle the toughest jobsite conditions. Designed for contractors, utilities, and industrial professionals, this rugged unit delivers reliable compressed air wherever you need it. With advanced engineering, efficient fuel consumption, and impressive airflow, the D185T4F provides unmatched productivity in a compact, towable design.

Reliable Airflow for Demanding Applications

✔️ 185 CFM at 100 PSI – The D185T4F delivers a strong 185 cubic feet per minute of air at 100 PSI, making it the ideal 185 CFM air compressor for powering pneumatic tools, sandblasting, drilling, and more.

✔️ Tier 4 Final-Compliant Diesel Engine – Built with environmental responsibility in mind, this mobile air compressor meets the latest EPA emissions standards without compromising performance.

✔️ Built to Last – The unit’s corrosion-resistant steel enclosure, heavy-duty chassis, and integrated air/oil separation system ensure durability and consistent operation in harsh jobsite environments.

Towable and Jobsite-Ready

As a true towable air compressor, the D185T4F is mounted on a rugged, highway-ready trailer with a torsion bar suspension system and DOT-compliant lighting. Whether you’re towing it around a construction site or transporting it across town, this unit is engineered for maximum mobility. Its compact footprint and balanced design make maneuvering effortless, while built-in lifting points allow for easy loading and unloading.

Smart Operation and Easy Maintenance

User-friendly controls and an accessible service layout make the D185T4F as easy to maintain as it is to operate. The intuitive control panel allows for quick pressure adjustments and clear status readouts. Large doors and grouped service points ensure fast maintenance turnaround, keeping your team productive and your equipment running strong.

A Portable Compressor Built for Productivity

As a leading portable compressor in its class, the D185T4F is engineered to meet the diverse needs of contractors and maintenance professionals who require reliability and flexibility on the job. From powering jackhammers to running sandblasters, this 185 CFM air compressor brings consistent, clean air to your most demanding applications.

Why Choose the ELGi D185T4F?

✅ Delivers powerful 185 CFM at 100 PSI for high-demand air tools
✅ Tier 4 Final-compliant diesel engine for reduced emissions
✅ Durable and dependable towable air compressor design
✅ Compact and rugged mobile air compressor for jobsite flexibility
✅ Engineered as a long-lasting, fuel-efficient portable compressor

For professionals who rely on air power in remote or rugged environments, the ELGi D185T4F offers unmatched performance, durability, and portability—ready to go wherever the job demands.

Specifications

COMPRESSOR
Operating Pressure 100 psi
Free Air Delivery 185 cfm
Minimum Working Pressure 73 psi
Drive System Engine-Airend Direct Drive
Oil Cooling Capacity 2.83 gal
Outlet Valves 2 x 3/4″
Battery Capacity 12V 100Ah 790A
Fuel Tank Capacity 23 gal
Fuel Consumption 1.7 gph
Dimensions L-68″ W-33″ H-52″
Dry Weight 1,962 lbs
DIESEL ENGINE
Engine Make KOHLER
Engine Type KDI 1903 TCR
Engine System 4 Stroke – High Pressure Common Rail
Displacement 1903 cc
No.Cylinders 3
Aspiration Turbo Intercooler
Max Engine Power @ 2600 RPM 49 HP
Max Engine Speed 2600 RPM
Min Engine Speed 1700 RPM
Cooling System Water
Cooling System Capacity 3.70 gal
Lubrication System Oil
Lubrication System Capacity 2.57 gal
Max Ambient Temperature 122oF
Min Working Temperature 14oF