Ditch Witch RT Line User Manual
Page 98
RT12/RT16/RT20/RT24 Operator’s Manual
Specifications - 97
RT12
CMW
General
Ditch Witch model RT12, self-propelled, hydrostatic, pedestrian, skid steered, two wheel drive rigid frame,
chain type trencher.
Operational
U.S.
Metric
Vehicle speeds
Equipped with tires:
Maximum transit forward
280 fpm
85.3 m/min
Maximum transit reverse
114 fpm
34.7 m/min
Equipped with wheel tracks:
Maximum transit forward
198 fpm
60 m/min
Maximum transit reverse
97 fpm
29.5 m/min
Digging chain speed:
10 tooth sprocket
324 fpm
98.7 m/min
12 tooth sprocket
389 fpm
118.5 m/min
Spoils handling (single, open-end auger):
Outer diameter
12 in
305 mm
Inner diameter
4 in
102mm
Length
9 in
229 mm
Operating weight (with 33,000-lb [14 969-kg] test, two-pitch digging chain
and 24” [610-mm] roller boom)
1020 lb
463 kg
Operating weight (with 35,000-lb [15 876-kg] test, 4.6” [117 mm] Combo
Shark digging chain, RotoWitch, backfill blade, tracks and trench
cleaner)
1461 lb
664 kg
Power
U.S.
Metric
Engine: Honda 11.7hp iGX390, gasoline
Cooling medium: air
Number of cylinders: one
Displacement
23.7 in
3
389 cm
3
Torque @ 2500 rpm
19.5 ft-lb
26.4 N-m
Gross power @ 3600 rpm
11.7 hp
8.7 kW
Rated speed
3600 rpm
3600 rpm