Bulk Cement Transport Trailer

Our WBT-620 and WBT-660 bulk transport trailers are engineered for rugged operations and built for an expected service life of three decades.


Wilco™ bulk cement transport trailers are built with two pressure vessels for transporting and unloading bulk cement and other powdered bulk materials. With safety in mind, the transport trailers incorporate ASME-code pneumatic pressure vessels mounted in an open-frame trailer, giving them the lowest center of gravity on the market.

Our trailers are designed to deploy to wellsites and other locations loaded with bulk material. Utilizing an integrated or offboard compressor, the bulk cement is pneumatically displaced to storage silos, batch mixers, or pumping units. Standard units are designed for maximum payload.

Along with the standard WBT-620 and WBT-660 models, we also offer a special desert transport trailer design. Featuring 710-ft³ (20.1-m³) capacity, this custom trailer is equipped with a short body-length frame, surge tank, dust collector, and protective engine enclosure. Other custom designs and options are also available.


  • Manual manifold valves standard with optional remote-control air-actuated valves
  • Optional Wilco surge tanks interface between bulk cement storage tanks and cement mixing equipment
  • Optional dust collectors

Bulk Cement Transport Trailer Vessel Specifications

*Note: The tanks are designed per ASME pressure vessel code for temperatures above -20 °F (-29 °C). Special low-temperature (-50 °F [-45.6 °C]) pressure vessels can be optionally supplied.
WBT-620 WBT-660
Useable volume transport tanks 624 ft3 (17.67 m3) capacity 680 ft3 (19.26 m3)
Codes Designed to ASME Sec. VIII, Div. 1 and registered with the National Board of Boiler and Pressure Vessel Inspectors
Maximum allowable working pressure 36 psi (248 kPa) at 250°F (121°C)
Minimum design metal temperature -20°F (-29°C) at 36 psi (248 kPa)

Bulk Cement Transport Trailer Power Unit Specifications

Power unit Cummins QSF2.8T4F 74 hp (55.2 kW) Tier 4 final or 74-hp export engine (Tier 3 equivalent)
Fuel tank 30 gal (114 L)
Couplings 30-gal (114-L) ASME air receiver with 3 in. (76.2 mm)
Compressor 30-hp (22.4-kW) compressor producing approximately 205 ft3/min (5.80 m3/min) at 30 psi (207 kPa) at 1,072 RPM engine speed
Engine Equipped with automatic shut-off system to save the unit if high-temperature, low oil pressure, or high engine RPM are encountered

Bulk Cement Transport Trailer Frame Specifications

Design Steel I-beam frame mounted with dual axles and air ride suspension
Axles Two 25,000-lb (11,340-kg) axles with 71.5-in. (1.812-m) track
Suspension 25,000-lb (11,340-kg) Neway air ride suspension (mechanical spring suspension also available)
Steel wheel 22.5 × 8.25, 10-hole
Tires 11R22.5, 16-ply
Kingpin coupler Heavy-duty 2-in. (50.8-mm) SAE Holland Hitch (other sizes also available)
ABS system Trailer equipped with anti-lock brake system

Bulk Cement Transport Trailer Weight Specifications

WBT-620  WBT-660
Length 38 ft 7 in. (11.70 m) 38 ft 7 in. (11.70 m)
Width 8 ft 6 in. (2.59 m)
8 ft 6 in. (2.59 m)
Height 12 ft 1 in. (3.68 m) 12 ft 8 in. (3.86 m)
Total weight (empty) 23,200 lb (10,520 kg) 23,760 lb (10,780 kg)
Weight at rear axles (empty) 13,680 lb (6,205 kg) 13,860 lb (6,290 kg)
Unloaded kingpin weight 9,520 lb (4,320 kg) 9,900 lb (4,490 kg)
  • Wilco Bulk Transport Trailer Specification Sheet

  • Cementing Solutions Brochure

  • Wilco Capabilities and Services Brochure

  • Pressure Pumping and Cementing 24-hour Support Contacts

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