Blowers are “air pumps” used in pneumatic pressure and vacuum loading and unloading of dry bulk materials from tank trucks. In addition to selling replacement units and accessories for existing systems we help our customers engineer new equipment applications and re-engineer existing systems to satisfy changing needs. Shaft or hydraulically driven blower systems can be installed on tractors or trailers. We can also build skid mounted electric motor or engine driven packages to meet specific needs.

Product Offering

These manufacturers are just a portion of our product offering. Please call if you don’t see what you’re looking for.

Gardner Denver CycloBlower

Helical screw blowers with a highly efficient rotor design that provides maximum output to weight ratio with smoother, quieter operation than rotary lobe style blowers. Lower discharge temperature extends service life. No lubrication in the compression chamber assures oil-free air. Lower fuel consumption and maintenance costs due to lower engine speeds.

Gardner Denver Drum lobe style

Versatile rotary lobe blowers for dry bulk applications. These machines have wide RPM range and high pressure capabilities. They are a durable yet economical choice for vacuum loading or pressure discharge, whether you haul cement or plastic pellets.

Gardner Denver Drum vane style

Rotary vane blowers of a simple design allows for easy replacement of vanes in the field. A quiet, high pressure machine designed for cement & flyash.

Gardner Denver DuroFlow

Rotary lobe blowers with compact, rugged design. These units have high power to weight ratios and handle a wide range of products with lower upfront costs than other machines.

Related Products and Services

Gardner Denver Drum

Hydraulic oil coolers for hydraulic drive systems.

D&W Tank Truck

Remanufactured units: rotary lobe and rotary vane blowers — all makes. We offer exchange units, custom remanufacturing and custom repair services. With our drive-in services we can troubleshoot your existing system, make any repairs, or perform upgrades to meet your needs. Related services include application engineering, fabrication of mounting brackets and package units, and spec’ing and installation of hydraulic drive systems.


  • Lubricating oils & greases, including food grade
  • Mounting brackets, quick mount truck installation kits
  • Silencers, mufflers, air intake filters
  • Valves: full assortment including air relief, swing check, butterfly
  • Aeration equipment
  • Hopper tees
  • Pipe clamps
  • Sight glasses
  • PTOs and drive line kits
  • Hydraulic drive systems including: PTOs, hydraulic pumps, hydraulic motors, valves, hoses, fittings and hydraulic oil coolers
  • Hose & couplings for hot air, product, hydraulics
  • Gauges
  • Package systems custom built including: blower, electric motor or diesel engine, belt guards, filters and mufflers

Choose D&W for the best in tank truck blower sales and service.