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RK Tractors RK55S

RK Tractors RK55S tractor
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The RK Tractors RK55S is a compact utility tractor built by TYM and distributed by RK Tractors (a part of Rural King) since 2017. It features a Yanmar 2.1L 4-cylinder turbocharged diesel engine producing 55.1 hp gross, with a 16-speed mechanical shuttle transmission. The tractor includes four-wheel drive, power steering, wet disc brakes, and a two-post ROPS. It supports various attachments including a front-end loader and backhoe, making it versatile for multiple tasks. The RK55S offers a fuel tank capacity of 17 gallons and has a wheelbase of 76.2 inches. It is available in several variants including shuttle and hydrostatic transmissions with ROPS or cab options.
RK Tractors RK55Scompact utility tractorYanmar 2.1L diesel55 hp tractormechanical shuttle transmissionfront-end loaderbackhoetractor specifications
Power55 hp
Founded2017 -
ModelRK55S

Technical Specifications

Detailed specifications and technical data for RK Tractors RK55S

Power

PTO (claimed):44.9 hp (33.5 kW)
Engine (gross):55.1 hp (41.1 kW)

Tires

Lawn/turf rear:16.9x24
Industrial rear:16.9x24
Lawn/turf front:12x16.5
Industrial front:12x16.5
Standard tires (ag):Front: 9.5x16. Rear: 14.9x24

Engine

Type:turbocharged diesel
Model:Yanmar 4TNV86T-CR
Cooling:liquid-cooled
Starter:electric
Cylinders:4-cylinder
Fuel tank:17 gal (64.3 L)
Rated RPM:2800
Bore/Stroke:3.39x3.54 inches (86 x 90 mm)
Fuel system:common rail direct injection
Displacement:127.6 ci (2.1 L)
Power (gross):55.1 hp (41.1 kW)
Starter volts:12

Variants

RK55H:hydrostatic ROPS
RK55S:shuttle ROPS
RK55HC:hydrostatic cab
RK55SC:shuttle cab

Dimensions

Width:63.8 inches (162 cm)
Length:141.3 inches (358 cm)
Weight:3814 lbs (1730 kg)
Wheelbase:76.2 inches (193 cm)
Height (ROPS):102.1 inches (259 cm)
Ground clearance:13.8 inches (35 cm)

Electrical

Ground:negative
Battery volts:12
Charging amps:70
Charging system:alternator

Hydraulics

Valves:2
Pump flow:9.5 gpm (36.0 lpm)
Total flow:14.5 gpm (54.9 lpm)
Steering flow:5 gpm (18.9 lpm)

Mechanical

ROPS:Two-post ROPS
Drive:Four-wheel drive
Brakes:Wet disc brakes
Steering:Power steering

Production

Type:Compact Utility tractor
Distributor:RK Tractors (a part of Rural King)
Manufacturer:TYM
Original price:$21,799 in 2017
Production years:2017 -

Attachments

Backhoe:RK Tractors BH8.0 Backhoe
Loader weight:1261 lbs (571 kg)
Backhoe weight:1500 lbs (680 kg) Without bucket
Loader rollback:35°
Front-end loader:L110 Loader
Backhoe swing arc:180°
Loader attachment:quick coupler
Loader dump angle:45°
Loader bucket width:72 inches (182 cm)
Backhoe bucket force:4435 lbs (2011 kg)
Backhoe bucket widths:9 inches (22 cm), 12 inches (30 cm), 16 inches (40 cm), 18 inches (45 cm), 24 inches (60 cm)
Loader reach (dumped):21.4 inches (54 cm)
Loader reach (ground):73.1 inches (185 cm)
Backhoe loading height:92.4 inches (234 cm)
Loader height (at pin):109.1 inches (277 cm)
Backhoe bucket rotation:151°
Backhoe reach from pivot:134.4 inches (341 cm)
Backhoe transport height:91.2 inches (231 cm)
Loader breakout (at pin):4938 lbs (2239 kg)
Backhoe dipperstick force:2694 lbs (1221 kg)
Loader clearance (dumped):80.8 inches (205 cm)
Loader lift (full at pin):2478 lbs (1124 kg)
Backhoe 2-Foot flat digging depth:103.2 inches (262 cm)

Transmission

Type:mechanical shuttle
Gears:16 forward and reverse
Speeds:Reverse speeds are 15% slower than forward
Details:Four synchronized gears (1-4) in four ranges with mechanical shuttle

Tractor hitch

Control:position and draft control
Rear Type:I
Rear lift (at ends):3314 lbs (1503 kg)
Rear lift (at 24"/610mm):2945 lbs (1335 kg)

Power Take-off (PTO)

Clutch:electro-hydraulic
Rear PTO:independent
Rear PTO Type:540 (1.375)

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