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Operation
U.S.
Metric
Forward speed, max
4.7 mph
7.6 km/h
Reverse speed, max
2.7 mph
4.4 km/h
Vehicle clearance circle
Front steer only
28 ft
8.5 m
Coordinated steer only
20 ft
6.1 m
Digging chain speed, max (2,600 rpm engine speed)
460 fpm
140 m/min
Operating weight
5,375 lb
2438 kg
Headshaft speed, max (2,600 rpm engine speed)
233 rpm
233 r/min
Tier 4, 49-hp (36.5-kW) Deutz® diesel engine is designed for minimal maintenance and maximum operator productivity.
Hydraulic System @ 2,600 rpm
U.S.
Metric
Ground drive pump capacity
31.5 gpm
119 l/min
Ground drive pump relief pressure
3,650 psi
252 bar
Attachment drive
Trencher
5,000 psi
345 bar
Plow/saw
3,750 psi
259 bar
Attachment pump capacity
31.5 gpm
119 l/min
Auxiliary pump capacity
11.5 gpm
44 l/min
Auxiliary pump relief pressure
2,100 psi
145 bar
Power (Tier 4i)
U.S.
Metric
Engine
Deutz D2011L3
Fuel
Diesel
Cooling medium
Oil
Injection
Direct
Aspiration
Natural
Number of cylinders
3
Displacement
142 in3
2.3 L
Bore
3.7 in
94 mm
Stroke
4.41 in
112 mm
Manufacturer’s gross power rating (SAE J1995)
42.2 hp
31.5 kW
Rated speed
2,300 rpm
Emissions compliance (LRC)
EPA Tier 4i
EU Stage IIIA
Power Train
U.S.
Metric
Ground drive transmission
Hydrostatic drive, infinitely variable from zero to maximum, foot-pedal and hand-lever operated speed/direction control
Differentials
Dana model 44, limited slip; Dana model 60, limited slip
Parking brake
Disc, hand-operated
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 forward w/limited stroke reverse
Trencher drive transmission
Hydrostatic
Noise Level
U.S.
Metric
Operator
96 dBA sound pressure per ISO 6394
Exterior
108 dBA sound power per ISO 6393
Tires/Pressure
U.S.
Metric
26 x 12-12, 4-ply bar lug
1,780 lb @ 20 psi
807 kg @ 1.40 bar
29 x 12.50-15, 8-ply bar lug (optional)
2,150 lb @ 30 psi
975 kg @ 2.07 bar
Battery
U.S.
Metric
Group
26/26R/70
SAE reserve capacity rating
165 min
Cold crank rating @ 0°F (-18°C)
850 amps
Auxiliary power outlet
12V, 5 amps
* Dimensions are based on H313 attachment and shortest roller boom length, 26 x 12.00-12 standard tire and wheel and 12-inch pivot.
** Operating weight based on H313 attachment, longest roller boom, heaviest chain, 175-lb operator, and 26 x 12.00-12 tires.
Specifications are general and subject to change without notice. If exact measurements are required, equipment should be weighed and measured. Due to selected options, delivered equipment may not necessarily match that shown.
Your Ditch Witch equipment is backed by a worldwide network of dealers you can count on for unmatched commitment to your success. From genuine Ditch Witch parts to factory-trained service to expert advice, your Ditch Witch dealer has it all for you.
Advanced air-filtration system designed to improve engine performance; air filter elements are easy to access and replace.
Direct-coupled, high-torque digging chain motor designed for increased production and reliability.
Engine service points are easily accessible from one side, simplifying maintenance.
Power (Tier 4)
U.S.
Metric
Engine
Duetz® D2.9 L4
Fuel
Diesel
Cooling medium
Water
Injection
Direct
Aspiration
Natural
Number of cylinders
4
Displacement
177 in3
2.9 L
Bore
3.6 in
92 mm
Stroke
4.3 in
110 mm
Gross power
49 hp
36.5 kW
Rated speed
2,600 rpm
Emissions compliance
EPA Tier 4
EU Stage IIIA
Operator’s station features one-piece molded instrument console designed to provide ample legroom and greater visibility.
Exhaust system is mounted under a composite hood with a horizontal exhaust pipe, diverting noise and hot air from the operator.
Advanced operator presence system designed to promote safety by stopping the engine when operator leaves the seat.
Outstanding versatility: attachments include a centerline or dual-position trencher, vibratory plow, earth saw, microtrencher, combination trencher/plow, and backhoe.
Monochrome LCD display provides all engine diagnostics and easy-to-read gauges.
Dimensions
U.S.
Metric
Height
86 in
2.18 m
Length, transport
155 in
3.9 m
Width
64 in
1.6 m
Basic unit weight
3,240 lb
1470 kg
Wheelbase
48 in
1.22 m
Spoil discharge reach, min to max
17-20 in
430-510 mm
Tread
46 in
1.2 m
Ground clearance
7 in
180 mm
Hydraulic System Tier (4i) @ 2,300 rpm
U.S.
Metric
Ground drive pump capacity
29.3 gpm
111 l/min
Ground drive pump relief pressure
3,750 psi
258 bar
Attachment drive
Trencher
5,000 psi
345 bar
Plow/saw
3,750 psi
259 bar
Attachment pump capacity
29.3
111 l/min
Auxiliary pump capacity
10.2 gpm
39 lpm
Auxiliary pump relief pressure
2,500 psi
172 bar
Fluid Capacities
U.S.
Metric
Fuel tank
13 gal
49 L
Engine oil
6.4 qt
6.1 L
Hydraulic system
13 gal
49 L
Hydraulic reservoir
9.5 gal
36 L
Coolant
3 gal
11 L
User-friendly operation, with color-coded speed/direction and attachment controls; backfill blade controlled by a highly responsive joystick.
Easy-to-use foot pedal controls the infinitely variable ground drive forward and reverse.
Backfill Blade
U.S.
Metric
Blade width
64 in
1.6 m
Blade height
14 in
355 mm
Lift height, above ground
12 in
300 mm
Blade drop, below ground
8 in
200 mm
Swing angle, max
Left/right
28°
Tilt angle
Up/down
11°
There’s an easy way to remember the ideal machine for trenching 4- to 5-foot (1.2- to 1.5-m) trenches: the Ditch Witch RT45. With its direct-coupled, high-torque digging chain motor and Tier 4 engine, the RT45 has plenty of power to muscle through the earth—with your choice of trencher, backhoe, earth saw, vibratory plow, microtrencher, or combination trencher/plow attachments—while you enjoy its roomy and comfortable operator’s station. With all of its customer-driven design features, it’s no surprise that the RT45 has been the rental industry’s number one choice in its horsepower class for the last 50 years.