RT45

RT45 Compact Riding Trencher
There’s an easy way to remember the ideal machine for trenching 4- to 5-foot 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.
Key Features
  • User-friendly operation, with color-coded speed/direction and attachment controls; backfill blade controlled by a highly responsive joystick.
  • Advanced operator presence system designed to promote safety by stopping the engine when operator leaves the seat.
  • Advanced air-filtration system designed to improve engine performance; air filter elements are easy to access and replace.
  • Exhaust system is mounted under a composite hood with a horizontal exhaust pipe, diverting noise and hot air from the operator.
  • Easy-to-use foot pedal controls the infinitely variable ground drive forward and reverse.
  • Direct-coupled, high-torque digging chain motor designed for increased production and reliability.
  • Tier 4, 49-hp Deutz® diesel engine is designed for minimal maintenance and maximum operator productivity.
  • Outstanding versatility: attachments include a centerline or dual-position trencher, vibratory plow, earth saw, microtrencher, combination trencher/plow, and backhoe.
  • Operator’s station features one-piece molded instrument console designed to provide ample legroom and greater visibility.
  • Monochrome LCD display provides all engine diagnostics and easy-to-read gauges.
  • Engine service points are easily accessible from one side, simplifying maintenance.
Specifications
RT45
Dimensions
Trench depth, max.
63 in
Angle of approach
20⁰
Angle of departure
17⁰
Trench width, min to max
6 in - 12 in
Boom angle, down
58⁰
Boom angle, up
50⁰
Centerline of trench to outside edge
- Left, min
35 in
- Right, min
29 in
Head shaft height, digging chain
17 in
Height
86 in
Head shaft overhang
24.5 in
Length, transport
155 in
Wheelbase
48 in
Spoil discharge reach, min to max
17 in - 20 in
Width
64 in
Tread
46 in
Ground Clearance
7 in
Operation
Maximum forward speed
4.3 mph
Maximum reverse speed
2.7 mph
Vehicle clearance circle (SAE)
- Front steer only
28 ft
- Coordinated steer
20 ft
Basic unit weight
4200 lb
Maximum digging chain speed
420 fpm
Power
Engine
Deutz D2011L3i
Fuel
Diesel
Cooling medium
Oil
Injection
Direct
Aspiration
Natural
Number of cylinders
3
Displacement
142 in³
Bore
3.7 in
Stroke
4.4 in
Manufacturer's gross power rating (SAE J1995)
42.4 hp
Estimated net power rating (SAE J1349)
39 hp
Rated speed
2300 rpm
Emissions Compliance
EPA Tier 4i
Hydraulic System
Fluid Capacities
Fuel tank
13 gal
Engine oil
8 qt
Hydraulic system
13 gal
Hydraulic reservoir
9.5 gal
Tires
Backfill Blade
Blade width
64 in
Blade height
14 in
Lift height, above ground
12 in
Blade drop, below ground
8 in
Maximum swing angle, left/right
28⁰
Tilt angle, up/down
11⁰
Power Train
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 (optional); Dana Model 60, limited slip (optional)
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 with limited stroke reverse
Trencher drive transmission
Hydrostatic
Tires/Pressure
26 x 12.00-12, 4-ply bar lug
20 psi
29 x 12.50-15, 4-ply bar lug
30 psi
Hydraulic System @ 2300 rpm
Ground drive pump capacity
29.3 gpm
Ground drive pump relief pressure
3750 psi
Attachment drive, trencher
5000 psi
Attachment drive, plow/saw
3750 psi
Attachment pump capacity
29.3 gpm
Auxiliary pump capacity
10.2 gpm
Auxiliary pump relief pressure
2500 psi
Filtration
25 psi (1.7 bar) return/charge pump; 15 psi (1 bar) bypass, 10 micron
Hydraulic System @ 2600 rpm
Battery
Group
2/26R/70
SAE reserve capacity rating
110 min
SAE cold crank rating @ 0⁰ F (-18⁰ C)
800 A
Auxiliary power outlet
12V, 5A
Noise Levels
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Posted in Compact, Trenchers & Vibratory Plows