Equipment Specifications Library

Basic Model Information

  • Manufacturer:
    Ditch Witch
  • Model:
    RT55

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Additional Info

DIMENSIONS
Trench depth, maximum: 62" (1.58 m)
Angle of approach: 20°
Trench width, min. to max.: 6" - 12" (150 mm - 300 mm)
Boom angle, down: 55°
Boom angle, up: 51°

Centerline of trench to outside edge
Left, min.: 23.5" (597 mm)
Right, min.: 9" (229 mm)

Headshaft height, digging chain: 29" (737 mm)
Height: 95.2" (2.42 m)
Headshaft overhang: 42" (1.07 m)
Length, nose to rear mount: 114" (2.90 m)
Length, transport: 128" (3.25 m)
Wheelbase: 60" (1.52 m)
Spoil discharge reach, min. to max.:
17" - 30" (430 mm - 760 mm)
Width: 71" (1.80 m)
Tread: 55" (1.40 m)
Ground clearance: 10" (254 mm)
Rear axle, center to rear attachment mounting holes: 14.7" (373 mm)

OPERATION
Maximum forward speed
Low/1st: 1.7 mph (2.7 km/h)
High/2nd: 5.5 mph (8.9 km/h)

Maximum reverse speed
Low: 1.1 mph (1.8 km/h)
High: 3.4 mph (5.5 km/h)

Maximum trenching speed, @ full load (varies with soil condition): 150 fpm (45.72 m/min)

Vehicle clearance circle (SAE)
Front steer only: 33.5 ft (10.21 m)
Coordinated steer: 21.5 ft (6.55 m)
Basic unit weight: 5610 lb (2545 kg)
Front counterweight: 1915 lb (869 kg)

Maximum digging chain speed: 764 fpm 232.87 m/min

BACKFILL BLADE
Blade width: 72" (1.83 m)
Blade height: 14" (356 mm)
Lift height, above ground: 17" (430 mm)
Blade drop, below ground: 13" (330 mm)
Maximum swing angle (left/right): 30°
Tilt angle (up/down): 16°

POWER
Engine: Deutz F4M2011
Fuel: Diesel
Cooling medium: Oil/external
Injection: Direct
Aspiration: Natural
Number of cylinders: 4
Displacement: 189 in3 (3.1 L)
Bore: 3.7" (94 mm)
Stroke: 4.4" (112 mm)
Manufacturer's gross power rating (SAE J1995): 60 hp (45 kW)
Estimated net power rating (SAE J1349): 57 hp (42 kW)
Rated speed: 2600 rpm
Emissions Compliance: EPA Tier 2 (EU Stage II)

POWER TRAIN
Ground drive transmission: Hydrostatic drive, infinitely variable from zero to maximum, foot-pedal and hand-lever operated speed/direction control

Differentials: Planetary front and rear with optional rear steering

Parking brake: Spring-applied, pressure-released

Service brake: Ground drive speed/direction control brakes machine hydraulically when moved to neutral position
Attachment drive transmission: Hydrostatic, lever-operated, speed infinitely variable from zero to maximum

Trencher drive transmission: Hydrostatic

TIRES/PRESSURE
31 x 15.50-15, 8-ply, bar lug: 40 psi (276 kPa)
35 x 19.00-16, 12-ply, bar lug: 55 psi (379 kPa)

HYDRAULIC SYSTEM @ 2600 RPM
Ground drive pump capacity: 32 gpm (121 L/min)
Ground drive pump relief pressure: 5000 psi (345 bar)
Attachment drive, trencher: 5450 psi (376 bar)
Attachment drive, plow/saw: 5450 psi (376 bar)
Attachment pump capacity: 32 gpm (121 L/min)
Auxiliary pump capacity: 8/6 gpm (30/23 L/min)
Auxiliary pump relief pressure: 3000 psi (207 bar)

FLUID CAPACITIES
Fuel tank: 19.5 gal (74 L)
Engine oil: 16 qt (15 L)
Hydraulic system: 20 gal (76 L)
Hydraulic reservoir: 12 gal (45 L)
Transmission: Hydrostat

BATTERY
Group: 78 u
SAE reserve capacity rating: 110 min
SAE cold crank rating @ 0° F (-18): 800 A
Auxiliary power outlet: 12V, 10A

This information is provided for informational purposes only. HDD Broker LLC cannot warrant the accuracy or completeness of this information. This information is subject to change by the manufacturer. Some specifications may vary by model year.

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