Industrial Vacuum Trucks & Equipment
780 955-9344
Equipment Model: Semivac Units

SemiVac Trailer

SemiVac Trailer

MA#: MA732
Model: Semi Vac 30m3
Code: TC407/412
Blower: RB85 Robuschi Blower
Located: Located at Custom Vac Nisku
Status: Immediate Delivery


Tel: 780 955-9344

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Vacuum Truck: Semivac Units - Standard Unit Configuration

Base Model - Unit displayed above may differ for the standard configurations.
Please contact a sales representative for more details about the unit listed above.

Tank Capacity

Tank Capacity:

30 m3 capacity (+3% Outage) 6600 Imp.Gal.


Vessel designed and constructed in full compliance with Transport Canada Specification TC407/412 CSA B620-09

  • Head Material 72" x 5/16"
  • Shell Material 72" x 1/4"
  • Tank Diameter 72" OD (36' - 0' Seam to Seam)
  • Operating Temperature -20 deg. F to 200 deg. F
  • Hydrostatic Test Pressure 40 PSIG

Primary Shut-Off:

  • 8" heavy duty internal shut-off with a 10" stainless steel ball and 12: cage assembly, neoprene rubber seat, and 6" flanged outlet

Isolation Valve:

  • Single 6" air operated butterfly valve between primary shut-off and cyclone with independent control switch at operator station


  • 6" piping with rubber hose connections
  • 6" composite loop hose c/w vic clamps each end


  • Three removable gull wing style baffles


  • 7 circumferential reinforcement flat bar rings

Sheeps Feet:

  • 3 sets of formed angle welded to base of flat bar rings for extra tank Support

Tank Lock Down:

  • Tank Lock Down Assembly to meet current B620 Code

Overturn Protection:

  • 4" roll bars top of tank, on reinforcement pads and gussetts
  • Liquid Level Indicators:
  • Two recessed stainless steel rotary float gauges with 6" stainless steel ball, Teflon packing, and
  • grease fitting located front and rear side of tank D/S
  • Rear Door:
  • Full open hydraulic door assemble c/w 6 heavy duty wing clamps, neoprene door gasket double acting hydraulic cylinder and counter balance valve . Read door safety post D/S
Hydraulic System

Hydraulic System:

  • Linde closed loop design system
  • Variable speed joystick for blower speed
  • torque control for vac pressure
  • Multifunction hydraulic control valve bank to operate, rear door and vibrators.
  • Independent control to operate hoist cylinder
  • Hose mast on tractor between trailer using high pressure wing quick couplers and main system relief valve for uncoupling safety.

Hydraulic Dump System:

  • Single post Mailhot hydraulic dump cylinder 30 ton capacity at final stage, 320" stroke 6 stage single acting (45 - 48 degree dump angle) & rear dump pivot. Hydraulic Pressure Relief Valve


  • Two Global hydraulic vibrator assemblies mounted on bottom of tank with reinforcing pads, heavy duty mounting channel, pressure relief valve.
  • Run 3/8" SS high pressure and 1/2" SS hard lines.

Hydraulic Reservoir:

  • 140 gallon tank skid mounted on tractor c/w
  • Vent, filters, Temperature and level indicators, fill breather cap
  • And inspection hatches

Hydraulic Cooler:

  • Two 120 volt oil coolers c/w fittings and required electrical
Blower Specifications

Blower Specifications:

  • Robuschi RB-DV-85,Tri Lobe PD Blower
  • 1600 CFM Free air Rating ,27" Hg Maximum Vacuum
  • Oil free operation ( except sealed reservoirs)
  • High torque/High Temperature Drive Coupling wit Flex Insert
  • Exhaust plumbed to passenger side and down along front deck
  • One exhaust silencer and One Intake silencer

Blower Drive:

  • 8 bolt air shift Muncie P.T.O mounted on tractor transmission with direct mount hydraulic pump
  • Hydraulic motor bolted to blower
  • P.T.O. control mounted in counsel inside tractor cab

Filtration System:

  • 6" cyclone mounted on trailer frame with bottom swing clean-out door, 2" brass heated drain valve and aluminum camlok fittings
  • 16" diameter washable inline S.S. /fiber filter element, 20 micron for protection of blower


  • One 6" exhaust silencer
  • One 6" intake silencer with integral check valve for pressurizing tank

Blower Plumbing:

  • 6" diameter with rubber hose connections to eliminate vibration
Blower Valving:
  • 6" inline check valve assembly to prevent blower back spin while tank pressurized.
  • 6" Four-Way diverter valve for vacuum/pressure changeover modes c/w hydraulic cylinder control

Suction Valve:

  • One 6" brass load valve with 6" sand pipe c/w aluminum camlok D/S.
  • One 4" brass load valve (straight through) c/w aluminum camlok fitting P/S.

Discharge Valve:

  • One 6" brass discharge valve with aluminum kamlok fittings located on bottom center of rear door.
  • "Note: Tractor outfitted with coupling for trailer connection, antifreeze line with  valve from engine c/w push pump. Antifreeze line runs to rear of trailer.
  • All Rear valves heated and equipped with Custom Vac Air Actuators and separate control switches.

Pressure Relief:

  • Two 3" x 30 PSIG pressure relief  vents
  • Two 2" Knuckle relief vents in lower plumbing


  • 30/30 tank vacuum/pressure gauges (additional gauge at rear door), hydraulic pressure gauges & blower temperature gauge. All gauges mounted in open area

Front Deck:

  • 1/8" formed checker plate c/w handrail.

Hose Trays:

  • Preformed Light gauge Aluminum Hose Trays / Fenders on C/S & D/S of unit
  • D/S as long as possible.


  • Four flip style placards
  • One steel fitting box D/S
  • One steel toolbox door c/w two pail holders D/S.
  • Squeegee/shovel holders (pipe style ).


  • D.O.T. lighting with LED two lamp rear module assembly, clearance lamps, reflectors, three in a row clearance markers, junction box,
  • 6  L.E.D. work lights ( large style)
  • Stop and Turn light box modules mounted on rear top of rear door
  • Back up alarm
  • Tank up warning light in truck dash with buzzer
  • Hour meter installed in tractor for blower
  • Two blower switches, One in tractor cab, and one by valve bank


  • Code rear bumper for protection of external valves with platform step assembly
  • Steps on rear skirt D/S & P/S for rear door lock access


Complete Vacuum system and trailer sandblasted, primed and painted as per customer spec or fleet color



Additional Items Included:

  • 6" sample port located top center of tank with camlok/cap.
  • Diesel flush tank
  • Mudflaps  in all locations as necessary
  • 50' wind up ground cable
  • Two tire chain holders ( slide out style )
  • One operators manual wit unit
  • NSM ( National Safety Mark )
  • One Year Standard Manufactures Ltd Warranty


INTERNAL TANK LINER: add to final price ARMAGUARD: To Be Quoted


OAL Approximately 38'

Suspension: Air ride tridem 60" spread suspension with air switch and pressure gauge located front of trailer for deflation of air bags prior to raising of tank c/w tractor mounted scale.

Axle: Three Hayes Dana 5" Diameter, 22500 lb. Rating, CR Oil Seals, Dust Shields, Slack Adjusters.


  • 16.5 x 7 non asbestos S Cam complies with CMVSS 121.
  • Drum/Wheel Assembly:
  • 10 stud hub piloted hubs.

Rims: Aluminum 24.5 x 8.25 Tubeless (inside wheels machine finished & outside wheels polished on outside dished face).

Tires: 12 All season 11R x 24.5 Radials.

Landing Gear: Two Speed, Holland Mark V, 125000 lb. Static load, Crank on drivers side, skid shoes.

Pickup Plate: 3/8" Upper fifth wheel plate with 2" (bolt-in) King Pin, 50" Fifth Wheel Height and dual set back to 26-3/8" & 59-1/2" (Tandem/Tri-Drive Tractors).

Frame: 19" fabricated T1 I-Beam assembly with 1/2" x 6" top and bottom flanges, 1/4" thick web and full depth fabricated 1/4" 44W cross members every 36", suspension reinforcement, reinforced taper gooseneck assembly, 40'.

Contact Sales
LISTINGS - Semivac Units

SemiVac Trailer

SemiVac Trailer
Immediate Delivery

MA#: MA732
Model: Semi Vac 30m3

SemiVac Trailer

SemiVac Trailer
At Paint

MA#: MA737
Model: Semi Vac 30m3

SemiVac Trailer

SemiVac Trailer

MA#: CV-semivac
Model: Semi Vac 30m3

SemiVac Trailer

SemiVac Trailer
Immediate Delivery

MA#: MA734
Model: Semi Vac 30m3

National and International Sales

Custom Vac Service Ltd. offers custom built industrial vacuum equipment manufactured at our modern facility located in Nisku Alberta. Custom Vac Service Ltd. has a large inventory of vacuum trucks in production, ready for pant and for immediate delivery as well as a large inventory of vacuum trucks for rent or lease. 

Custom Vac's offers top quality industrial vacuum equipment for local, national and international sales. Custom Vac Service Ltd. offers equipment for export to the United States, Mexico and South America and welcomes inquiries from international customers requiring high quality custom built vacuum trucks.

A representative is available to answer any questions you may have about renting, leasing or purchasing a Vacuum Truck.