Trailer Tower w/Shelter: S812

Cell On Wheels (COW)

The S812 is a large 8ft x 12 ft communication shelter on a very robust trailer chassis, capable of handling unguyed towers up to 106 ft (32 m).

The S812 shelter trailer, combined with one of our T2 towers, is our bestselling shelter trailer tower system.

This top-of-the-line shelter trailer also comes in a military version, the S812MIL, featuring HMWWV tires, higher portability and increased interior height. One of our largest shelters, the S812 is available with any of our wide array of options or accessories, including nearly any customization you may need. The telescoping tower mast offerings include any of our unguyed towers, as well as any of our larger, high-payload, extreme-duty towers.

Self-Supporting Tower System

  • Overall dimensions of our S812 shelter are 8 ft (2.44 m) W x 12 ft (3.66 m) L x 8 ft (2.44 m) H.
  • This portable antenna mast shelter system has a very spacious interior and can be configured to house up to nine of our unique slide out, rotating equipment racks, along with other items you may require to support your telescoping tower mast.
  • The S812 is available with an array of options and accessories.
  • This trailer chassis has a high payload capacity and good ground clearance.
  • Trailer chassis is available with a gooseneck tongue & platform for easy install of antennas.
  • Capable of handling one of our unguyed telescopic towers to provide a complete self-supporting tower mast system.
  • This heavyweight mobile shelter trailer tower can be towed with a one-ton capacity vehicle.

View the complete specifications for our S812 self-supporting tower system below.

Optional accessories include:

  • 500 W telescoping lights
  • Air conditioner/heater units
  • Aluma Tower’s custom coax cable reels
  • Aluminum Treadplate storage boxes
  • Antenna storage containers
  • Heavy Duty Diesel generators
  • Custom aluminum fuel tanks
  • Flashing emergency lights
  • Motorola R56 complete grounding system
  • Equipment racks

CAUTION: Take care to avoid any contact with overhead power lines when raising, installing, or lowering your tower. Click here for full WARNING.

Please contact us to discuss your requirements.

S812 Specs 

SPECIFICATIONS S812
TOWER AVAILABLE WITH TRAILER UNIT GUYED – HD, XHD & XXHD MODEL  UNGUYED – T2
ALUMINUM SHELTER SIZE 144 in (365.76 cm) L x 96 in (243.84 cm) W x 94 in (238.76 cm) H
ALUMINUM SHELTER WEIGHT 1350 lb (612 kg)
TRAILER WIDTH OVERALL 100 1/2 in (255.27 cm)
TRAILER WIDTH, FRAME ONLY 96 in (243.84 cm)
TRAILER DECK HEIGHT 36 in (91.44 cm)
TRAILER LENGTH OVERALL (W/O COUPLER) 329 in  (835.66 cm )
TRAILER GROSS VEHICLE WGHT (GVWR) 15,990 lb (7253 kg) or (19,990 lb (9067 kg) available)
TRAILER GROSS AXLE WGHT (GAWR) 8,000 lb (3629 kg) – 10,000 lb (4536 kg)
TRAILER APPROX. WEIGHT SHIPPED (VARIES WITH DIFFERENT ACCESSORIES ) 13,000 lb (5897 kg)
NUMBER OF AXLES 2 (3 available to increase GVWR)
AXLE CAPACITY RATING (EACH) 8,000 lb (3629 kg)- 10,000 lb (94536 kg)
COUPLER CHANNEL (POSITIONS/HOLES) 7 POS./8 HOLES
STANDARD COUPLER SIZE 2  5/16 in  BALL, 20,000 lb  (9072 kg)CAP., 2 HOLES
BRAKES Electric (Hydraulic optional)
TIRE SIZE (NOTE: ALL RADIAL TIRES) 215/75R17.5
TIRE LOAD RANGE H
TIRE CAPACITY AND LOAD RATE 4805 lb (2180 kg)
TIRE P.S.I. 125 PSI
WHEEL / RIM SIZE (DIA./WIDTH/BOLT PATTERN ) 17.5 in (44.45 cm) / 6.75 in (17.15 cm) /8 ON 6.5 in (16.51 cm)
SHELTER ON TRAILER HEIGHT 130 in (330.2  cm)
FINISHED HEIGHT, TOWER IN STOWED POSITION 14 in (370.84 cm)
OVERALL LENGTH WITH TOWER MOUNTED 425 in  (1079.5 cm )
UID LABEL MIL-STD-130 Available