Mack MD

Last updated
Mack MD
Mack MD 7 box van truck 2020.jpg
Mack MD at TEC Equipment in Portland, OR
Production history
TypeMedium duty conventional cab
ManufacturerMack Trucks
Years builtfrom June 2020
Plant built Salem, Virginia
VariantsMD and MD Elec. 6, 7
Maximum weights
Weight class6, 7
Truck29,995 lb (13,606 kg) (MD6)
33,000 lb (15,000 kg) (MD7
Drivetrain
Diesel engineCummins B6.7L
TransmissionAllison 6-speed
Electric motor260 hp (190 kW)
Batteries150 (2) or 240 (3) KWH NMC
Drive layout4x2

The Mack MD is a series of medium-duty (Class 6 and 7) trucks built by Mack Trucks. It has a short, low-profile hood and a high-visibility cab. It is designed as straight trucks for local delivery, construction, and other vocational jobs. The MD was introduced in February 2020 entered full production in July 2020.

Contents

Design

The MD is a short-hood conventional. Designed for local use it has a day-cab only. It has two axles with the rear one driven. Total loaded weight can be up to 25,995 pounds (11,791 kg) for the MD6 and 33,000 pounds (15,000 kg) for the MD7.

Mack doesn't build any medium-duty components and uses a vendor engine, transmission, and axles.

Engine and transmission

A Cummins B6.7L diesel engine is used. It is a 6.7L turbocharged inline six-cylinder engine. It develops 220 to 300 horsepower (160 to 220 kW) and 560 to 660 pound force-feet (760 to 890 N⋅m) of torque.

An Allison 6-speed transmissions is used. They are fully automatic planetary gear transmission with a lock-up torque converter.

Chassis

A ladder frame with beam axles is used. Meritor supplies both the front and driven rear axles.

Applications

Mack is marketing the MD for local box van, stake/flatbed, dump, and tanker use.

BEV

240 kWh NMC battery, 19.2 kW AC or 80 kW DC charging. 260hp, 1850lb-ft. 19400lb payload. Dual-airbag cab suspension and air ride seat. Led headlights, steel front bumper, galvanized steel cab, 120k psi steel frame, 5 wheelbase options. [1]

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References

  1. "MD Electric | Mack Trucks". www.macktrucks.com. Retrieved 2024-02-13.

"Mack Arttack: Truck Maker Is Back in Medium-Duty market". Heavy Duty Trucking. January 30, 2020. Retrieved February 3, 2020.

"Mack launches medium-duty truck line, will invest $13 million in new manufacturing plant in Virginia". The Morning Call. January 30, 2020. Retrieved February 3, 2020.

"Mack Trucks Launches Mack MD Series Medium-Duty Truck". Mack Trucks. January 30, 2020. Retrieved February 3, 2020.