WorldWide Drilling Resource

22 JULY 2021 WorldWide Drilling Resource ® Vehicle-Integrated Underhood and PTO-Driven Air Compressors Adapted from Information by VMAC Vehicle-integrated air compressors are used by fleet managers, owners, and operators in a variety of industries, and are some of the most sought-after rotary screw air compressor solutions available. Two types of vehicle-integrated air compressors lead the mar- ket: UNDERHOOD and PTO-Driven. UNDERHOOD air compressors are specifically designed and engineered for service trucks and commercial vans; installed in the vehicle’s engine compartment. PTO-driven air compressors are direct- transmission mounted or shaft driven. Underdeck is a popular nickname for these air compressors because of their mounting position under the deck of a service truck. Vehicle-integrated UNDERHOOD and PTO-driven air compressors present many ben- efits. Having the air compressor installed in the engine compartment or under the truck deck offers major space savings. For example, VMAC’s DTM70 PTO-dri- ven air compressor frees up to 25 cubic feet on the truck deck because the air com- pressor mounts to the transmission, while the rest of the system mounts under the deck. Fleet managers and owner/opera- tors then have the advantage of being able to load up their vehicles with more equip- ment, tools, and other materials. Another advantage to vehicle-integrat- ed air compressors is the weight savings. Both underdeck and UNDERHOOD air compressors can save almost a thou- sand pounds compared to an abovedeck diesel-engine-driven air compressor. In fact, when it comes to vehicle-integrated air compressors, UNDERHOOD air com- pressors are the lightest weight option available. UNDERHOOD 40 CFM air compressors weigh only 62 pounds. Meanwhile, UNDERHOOD150 air com- pressors are 48% lighter than competi- tive 100 CFM underdeck air compressors. By choosing lightweight equipment, GVW (gross vehicle weight) can be decreased, which brings advantages such as meeting weight regulations, avoiding hefty over- weight fines, and improving fuel economy. When choosing the right air compressor system for your vehicle, it’s important to consider how long you plan to keep a vehicle in your fleet. A recent 2021 VMAC study found most service vehicles with an air compressor are replaced every 3- 9 years. If the plan is to keep the truck for over three years, then a vehicle-integrat- ed air compressor is a great option, and you’ll enjoy many space, weight, and cost-saving benefits year after year. PTO-driven air compressor. DIR