RT45
RIDE-ON TRENCHER
1 3
4 5
7 RT45
Direct-coupled, high-torque
digging chain motor designed
for increased production and
reliability.
Easy-to-use foot pedal that
controls infinitely variable ground
drive in both forward and reverse.
User-friendly
operator’s station
with color-coded
speed/direction
and attachment
controls; backfill
blade controlled by
a sensitive joystick.
Exhaust system is mounted
under a composite hood with
a horizontal exhaust pipe,
diverting noise and hot air
away from the operator.
Advanced air-filtration system designed
to improve engine performance; air filter
elements are easy to access and replace.
Operator presence system
stops the engine when the
operator leaves the seat
for greater safety.
6 2
Engine service points are easily
accessible from one side,
simplifying maintenance.
Tier 4, 49-hp (36.5-kW) Deutz® diesel engine
is designed for minimal maintenance and
maximum operator productivity.
8 The Ditch Witch® RT45 is your go-to trencher for 4- to 5-foot trenches. With its high-torque digging chain motor and Tier 4 engine, the RT45 has plenty of power to muscle through the earth—with your choice of compatible attachments—and plenty of comfort in its spacious operator’s station. It’s no wonder the RT45 has been rental’s most in-demand trencher for the last 50 years.
H516 TRENCHER
H331 VIBRATORY PLOW
DIMENSIONS U.S. METRIC
Angle of departure 22°
Cover depth, feed blade, max 24 in 610 mm
Transport length, plow w/blade 169 in 4.3 m
Offers both feed and pull blades. Maximum cover depth (feed blade) of 24 in (610 mm) .
H350 TRENCHER/PLOW COMBO
DIMENSIONS*
Angle of departure 33°
Trench depth, max 42 in 1.1 m
Trench width, min to max 6-8 in 150-200 mm
PLOW DIMENSIONS
Angle of departure, transport, 18-in (457-mm) blade 26° Cover depth 24 in 610 mm
GENERAL
Attachment weight, w/out augers, boom, chain, and
plow blade 1,500 lb 680 kg
* Dimensions are based on shortest roller boom, 26 x 12-12 standard tire and wheel, and 12-in (305-mm) pivot.
H313 TRENCHER
DIMENSIONS*
Angle of departure 17°
Trench depth, max 63 in 1.6 m
Trench width, min to max 6-12 in 150-305 mm
Attachment weight 610 lb 277 kg
* Dimensions are based on shortest roller boom, 26 x 12-12 standard tire and wheel and 12-in (305-mm) pivot.
H314 TRENCHER
DIMENSIONS* U.S. METRIC
Angle of departure 35°
Trench depth, max 52 in 1.3 m
Trench width, min to max
Center 6-12 in 150-305 mm
Offset 6-8 in 150-200 mm
Attachment weight 570 lb 260 kg
* Dimensions are based on shortest roller boom, 26 x 12-12 standard tire and wheel, and 12-in (305-mm) pivot.
H342 SAW
DIMENSIONS
Angle of departure 14°
Trench depth, max 18 in 455 mm
Overall length, transport 162 in 4.1 m
Number of teeth on saw wheel 36
Attachment weight
2.5-in (65-mm) segments 1,550 lb 700 kg
3.5-in (90-mm) segments 1,610 lb 730 kg
5-in (130-mm) segments 1,660 lb 755 kg
A323 BACKHOE
DIMENSIONS
Backhoe length, stowed 60 in 1.5 m
Digging depth, max 72 in 1.8 m
Reach from swing pivot 102 in 2.6 m
GENERAL
Bucket width 12 in 305 mm
Bucket capacity 1.1 ft3 0.03 m 3
Backhoe weight w/bucket 1,125 lb 511 kg
Swing arc 160°
Features a remote blade lift and throttle. Maximum digging depth of 72 in (1.83 m).
MT12 MICROTRENCHER
DIMENSIONS, W/31 X 10 SOLID
TIRES
Angle of departure 19°
Trench depth 1-ft (25.4-mm) increments 6.5-12.5 in 165-318 mm Blade diameter 34 in 864 mm
Trench width 0.50-1.5 in 13-38 mm
Attachment weight (includes mount kit) 1,400 lb 636 kg
RT45
ATTACHMENTS
DIMENSIONS* U.S. METRIC
Height (H1) 86 in 2.18 m
Length, transport (L2) 155 in 3.9 m
Width, transport (W2) 64 in 1.6 m
Basic unit weight 3,240 lb 1470 kg
Wheelbase (L4) 48 in 1.22 m
Spoil discharge reach, min to max (N) 17-20 in 435-510 mm Tread (W4) 46 in 1.17 m
Ground clearance, min (standard tire) 7 in 180 mm
Ground clearance, min (optional tire) 8.5 in 215 mm
POWER (TIER 4)
Engine Deutz ® 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
Manufacturer’s gross power rating 48.8 hp 36.4 kW
Rated speed 2,600 rpm
Emissions compliance EPA Tier 4 EU Stage IIIA
POWER (TIER 4I) U.S. METRIC
Engine Deutz D2011L3i
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 4.4 in 112 mm
Manufacturer’s gross power rating 42.2 hp 31.5 kW
Rated speed 2,300 rpm
Emissions compliance EPA Tier 4i EU Stage IIIA
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;
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 with
limited stroke reverse
Trencher drive transmission Hydrostatic
* Dimensions are based on H313 attachment and shortest roller boom length, 26 x 12-12 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 12-12 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.
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 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
HYDRAULIC SYSTEM @ 2,600 RPM
(TIER 4)
Ground drive pump capacity 31.5 gpm 119 l/min
Ground drive pump relief pressure 3,650 ps i 252 bar
Attachment drive
Trencher 5,000 p si 345 bar
Plow/saw 3,750 ps i 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
HYDRAULIC SYSTEM @ 2,300 RPM (TIER 4I)
Ground drive pump capacity 29.3 gpm 111 l/min
Ground drive pump relief pressure 3,750 ps i 258 bar
Attachment drive
Trencher 5,000 p si 345 bar
Plow/saw 3,750 ps i 259 bar
Attachment pump capacity 29.3 gpm 111 l/min
Auxiliary pump capacity 10.2 gpm 39 l/min
Auxiliary pump relief pressure 2,500 ps i 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
BACKFILL BLADE
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°
TIRES/PRESSURE
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
NOISE LEVEL
Operator 96 dBA sound pressure per ISO 6394
Exterior 108 dBA sound power per ISO 6393
BATTERY
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
RT45
RIDE-ON TRENCHER
SPECIFICATIONS
SERVICE
Your Ditch Witch dealership offers professional service technicians who are extensively trained in every aspect of Ditch Witch equipment maintenance and repair. Ask a service representative about our Orange Armor ® Planned Maintenance program, a schedule of maintenance at factory-suggested intervals that keeps your equipment in peak operating condition.
DIGGING SYSTEMS
Replacing worn digging system components is essential to maintaining maximum productivity from your trencher. See your dealer for genuine Ditch Witch chain, specially manufactured headshaft sprockets and digging teeth, which are designed to work together as a system to provide unparalleled trenching performance.
PARTS
Tires, O-ring kits, decals, paint, filters, hydraulic cylinder kits, belts, and many other accessories and replacement parts are available at your local Ditch Witch dealership, where you’ll also find expert advice that comes from years of experience in the underground construction industry.
©2020 The Charles Machine Works, Inc. LFCMWPROD1080401
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