The world’s only direct-transmission mounted pto driven air compressor with hydraulics.

Direct-Transmission Mounted PTO Driven Multi-Power System


The VMAC DTM70-H Air Compressor is a direct-transmission mounted PTO driven air compressor with hydraulic pump.

This system is the best choice for customers who are concerned with saving space and reducing weight on their service trucks, and who need both air and hydraulic power at the same time. This multi-power system allows customers to operate small to medium sized air tools, as well as a hydraulic crane or other equipment simultaneously. The system is designed for the Ford F250 to F550 Super Duty 6.7L Power Stroke diesel 4×2 and 4×4 work truck with TorqShift™ Automatic Transmission. Truck Mounting Kits VMAC designs truck mounting kits for the easiest possible installation. Working closely with leading truck manufacturers, VMAC ensures that mounting kits do not affect OEM warranties.

Some applications are restricted to specific series and/or models. Please confirm compatible vehicles on VMAC’s Application list.

Applications – Common jobs that use the DTM70-H multi-power system:

Commonly used air tools – VMAC DTM70-H systems can be used for:


Up To 70 CFM. Up To 14.9 GPM

The VMAC DTM70-H uses patented rotary screw technology designed to run 100% of the time without stopping, to maximize operator efficiency on the jobsite. This flexible system can produce up to 70 CFM @ 100 psi and can support up to 14.9 GPM @ 3,265 psi*, simultaneously providing compressed air and hydraulic power.

Fixed & Variable Operating Modes

The DTM70-H allows operators with 2020+ model year trucks to switch between fixed and variable modes, which reduces engine RPM and minimizes fuel consumption, resulting in fewer emissions and less noise on the job site. Fixed mode maintains low engine RPM for running hydraulic equipment while providing a steady rate of compressed air, and variable mode enables engine RPM to increase and decrease automatically based on air demand. Both modes enable hydraulic equipment to operate at their required speeds.

Decrease Truck GVW By Up To 600 LB

The DTM70-H frees up truck GVW by as much as 600 lb, with no air receiver tank to mount on the truck deck and 50% smaller hydraulic tank sizes required compared to other hydraulic systems. The total system weight is only 180 lb, allowing you to add taller tool cabinets, carry more materials or equipment or take advantage of improved fuel economy while driving to the jobsite.

30% Faster Installations

The DTM70-H is application-engineered for 2017-2020 Ford F250 to F550 Super Duty work trucks with 6.7L Power Stroke diesel, and TorqShift™ Automatic Transmission (4×4 or 4×2). No modifications are required to the Ford transfer case. No drive shafts are required, which can cause alignment issues. Reduced hydraulic plumbing, fittings and hoses compared to other deck-mounted hydraulic air compressors.

Simultaneous Operation

The DTM70-H control system integrates with standard crane controls and a new benefit is both the air compressor and hydraulic pump are designed to run simultaneously. Actual CFM and GPM flow is dependent on pump size and engine RPM.

Free up to 13 cubic feet on your truck body

The DTM70-H multi-power system frees up to 13 cubic feet on the truck deck because the air compressor mounts to the transmission, and the rest of the system mounts under the truck. In fact, no components get installed on the truck deck which ensures a clean and professional looking truck, and space for other equipment, tools or materials.

Avoid frustrating breakdowns and maintenance issues

The DTM70-H air compressor is powered by a PTO mounted on the truck’s transmission. Because they don’t have their own engine that needs constant maintenance, less time and money is spent on fixing engine issues and more time is spent on jobs making money.

Work in any climate

The DTM70-H multi-power system is proven to work in any extreme climate. With an integrated automatic heater, the system is ready to work when you are. *Actual maximum CFM and GPM output varies based on truck model year, engine RPM, hydraulic pump size, and operating mode.



Easy access for setup/adjustment

Air/Oil Seperator Tank

Separates compressor oil from compressed air and mounts safely to the truck’s frame rail.

Control Box

LCD for on/off controls; observing system status, service reminders, displays error messages and stores error codes

Remote Heavy Duty Air Filter

Remotely installed on truck for easy accessibility.

VMAC Air Compressor

VMAC oil-injected rotary screw; Up to 70 CFM @ 100 psi; 100% duty cycle; up to 175 psi


Includes 300 W modified Sine Wave Inverter and wiring harness


Liquid to liquid cooler integrates into truck’s cooling system and mounts under the radiator.

Chelsea ®  Series PTO

Unique patent pending design that provides best in class noise reduction and unprecedented torque capacity of 200 Ft. Lb.

Hydraulic Pump

Various pump options available; 3.0 GPM – 14.9 GPM; see specifications for pump options


Air Compressor Output

Up to 70 CFM* @ 100 psi (175 psi max); actual CFM output dependent on engine RPM (see chart below)

Air Compressor Type

PTO driven, direct transmission mounted, 100% duty cycle, VMAC oil-injected rotary screw

Weight (wet)

Approximately 180 lb (81.6 kg)

PTO (included)

CHELSEA® PTO; electrically actuated, PTO indicator lamp

  • CHELSEA® 249 Series (2017-2019 Ford)
  • CHELSEA® 210 Series (2020+ Ford)

Hydraulic Pump (included)

  • Various Hydraulic Pump options available(3.0 GPM – 14.9 GPM*)
  • Actual GPM output dependent on truck model year, hydraulic pump, engine RPM, and Operating Mode (see chart below)

Throttle Control

2017-2019 Model Years:

  • 2 throttle control set-points available
  • Allows for simultaneous operation of both the air compressor and hydraulic pump
  • Adjustable up to 3,000 RPM

    2020+ Model Years:

  • Two Operating Modes: variable and fixed; includes toggle switch to switch modesv
  • Fixed Mode: Engine RPM stays constant at engine RPM set-point (adjustable from 1250 to max RPM for the pump)
  • Variable Mode: Engine RPM increases and decreases automatically based on air demand (up to max RPM for the pump)
  • Both modes allow for simultaneous operation of both the air compressor and hydraulic pump

Control Box

  • On/Off function of PTO and compressor
  • Operating mode switch on PTO indicator panel
  • LCD display
  • Service notifications
  • Allows for simultaneous operation of both the air compressor and hydraulic pump
  • Displays error messages and stores codes
  • System temperature
  • Compatible with start/stop crane modules

Safety System

  • Automatic compressor heater function
  • Compressor over-temp sensor
  • Automatic rapid blow-down valve on tank
  • 200 psi pressure relief valve
  • Truck drive disable circuit on throttle control
  • Truck park brake safety shut-off switch on control box


  • Two years on all major components; VMAC air-ends are covered by VMAC’s Lifetime Limited Warranty

  • Chelsea PTO is covered by Parker Chelsea Two Year Warranty; Chelsea Pumps are covered by Parker Chelsea 18-Month Warranty
  • For details visit

*Actual maximum CFM and GPM output varies based on engine RPM and hydraulic pump size. See table below for details.

Contact Us