RT120

RT120 Heavy Duty Trencher
Versatility equals productivity. As the most versatile member of the best-selling trencher family in the world, the Ditch Witch RT120 utility tractor can help you be more productive on every jobsite. Durable components backed by 15 years of proven performance and a new, 121-hp Deutz® diesel engine keep the RT120 running strong all day long, while a huge range of attachments—trencher, plow, saw, backhoe, reel carrier, and trencher/plow combo—lets you tackle just about any task. It’s the go-to machine customers depend on. And we just made it better.
Key Features
  • 121-hp Deutz diesel engine keeps the RT120 running strong all day long.
  • Massive one-piece rigid frame design increases capacity and endurance; optional tilt frame configuration helps you dig a vertical trench on uneven ground.
  • Large selection of hydrostatic attachments increases jobsite productivity.
  • Dial control design gives the operator precise control of the ground drive speed and attachments, improving production.
  • Removable side panels provide easy access to service areas; engine service points are conveniently located on the left side, and the oil level can be checked without opening the engine enclosure.
  • Standard four-wheel drive helps provide superb traction and mobility in all kinds of jobsite conditions and applications.
  • Cruise-control system senses engine load and automatically adjusts ground drive speed for consistent production.
  • Operator’s station features a color LCD engine display that provides all engine information and diagnostics.
  • Four-post Rollover Protective System (ROPS) includes a canopy; options include enclosed cab and climate-control system.
  • Ergonomically designed operator’s station features 90-degree swivel seat, adjustable armrests, easy-to-read gauge cluster, and tiltable steering column.
Specifications
RT120
Dimensions
Angle of approach
25°
Height
115 in
Nose to rear mount length
125 in
Length, tractor transport
154 in
Wheelbase
79 in
Width
82 in
Tread
64 in
Operation
Forward speeds
- Low/Low
0.5 mph
- Low/High
1.3 mph
- High/Low
4.5 mph
- High/High
9.2 mph
Reverse speeds
- Low/Low
0.5 mph
- Low/High
1.3 mph
- High/Low
3.2 mph
- High/High
5.5 mph
Front counterweight
1300 lb
Side counterweight (each)
250 lbs.
Vehicle clearance circle (SAE), wall-to-wall, w/optional backfill blade
- Front steer only
34.3 ft
- Front and rear steer
20.8 ft
Basic unit weight
8,700 lb
Allowable tractor weight, max
19,300 lb
Ground clearance
14 in
Backfill Blade
Blade width
80 in
Blade height
17 in
Lift height, above ground
21 in
Blade drop, below ground
11 in
Maximum, swing angle, left/right
30°
Tilt angle, up/down
24°
Power
Engine
DeutzR TCD3.6L4
Fuel
Diesel
Cooling medium
Liquid
Injection
Direct
Aspiration
Turbocharged, charge air cooled
Number of cylinders
4
Displacement
221 in3
Bore
3.86 in
Stroke
4.72 in
Engine manufacturer's gross power rating (per SAE J1349)
121 hp
Rated speed
2030 rpm
Engine tilt angles, max
- Longitudinal/lateral
30°
Emissions Compliance
EPA Tier 4 Final
Power Train
Ground drive transmission
Hydrostatic
Attachment drive transmission
Hydrostatic, lever-operated, speed infinitely variable from zero to maximum
Differentials
Planetary front and rear w/optional rear steering
Service brake
Hydrostatic disc, foot-operated
Parking brake
Disc, hand-operated
Tires
(30 x 18.00-20, 14-ply bar lug flotation, inflate to 72 psi
Tires/Pressure
Hydraulic System
@ 2300 rpm
Ground drive pump relief pressure
5000 psi
Auxiliary pump capacity
13.6 gpm
Auxiliary pump relief pressure
2,500 psi
Fluid Capacities
Fuel tank
38 gal
Engine oil
8.5 qt
Hydraulic reservoir
24 gal
Hydraulic system
29 gal
Cooling system
12.3 qt
Battery
Noise Level
Differentials
General
Vibration Level
Conveyor Drive
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