Chamberlain industrial tractors

Chamberlain R 1250

The Chamberlain R 1250 is a wheel loader industrial tractor produced by Chamberlain from 1969 to 1975. Built in Welshpool, Australia, it features a Perkins 3.9L 4-cylinder diesel engine producing 64 hp (47.7 kW). It offers two transmission options: a 6-speed gear and a 4-speed torque converter. The tractor has a two-wheel drive with an open operator station. Its hydraulic system is an open center type with 12 gallons (45.4 L) capacity, 1800 psi pressure, and 34 gpm pump flow. Dimensions include a 96-inch (243 cm) wheelbase, 205.5-inch (521 cm) length, and an operating weight of 12842 lbs (5825 kg). The front and rear tires are 18.4-28 and 9.00-20 respectively. The R 1250 is equipped with a front-end loader attachment capable of lifting 4650 lbs (2109 kg) at full pin and a breakout force of 11800 lbs (5352 kg) with various bucket widths available.
Power-
Founded-
ModelR 1250

Technical Specifications

Detailed specifications and technical data for Chamberlain R 1250

Power
Engine64 hp (47.7 kW)
Engine
Typediesel
ModelPerkins 4-236
Power64 hp (47.7 kW)
Torque181 lb-ft (245.4 Nm)
Coolingliquid-cooled
Starterelectric
Cylinders4-cylinder
Rated RPM2000
Bore/Stroke3.875x5.00 inches (98 x 127 mm)
Displacement235.9 ci (3.9 L)
Starter volts12
Dimensions
Width91.75 inches (233 cm)
Length205.5 inches (521 cm)
Rear tire9.00-20
Wheelbase96 inches (243 cm)
Front tire18.4-28
Height (exhaust)75.5 inches (191 cm)
Operating weight12842 lbs (5825 kg)
Hydraulics
Typeopen center
Capacity12 gal (45.4 L)
Pressure1800 psi (124.1 bar)
Pump flow34 gpm (128.7 lpm)
Mechanical
DriveTwo-wheel drive
Operator stationOpen operator station
Production
TypeWheel Loader
Built inWelshpool, Australia
ManufacturerChamberlain
Years produced1969 - 1975
Attachments
Typefront-end loader
Details
Boom rod2.0 inches (5 cm)
Dump time0.8s
Bucket rod2.0 inches (5 cm)
Dump angle50°
Lower time2.8s
Raise time5.3s
Boom cylinder3.5 inches (8 cm)
Bucket widths48.5 inches (123 cm), 71.75 inches (182 cm), 87.75 inches (222 cm)
Rollback time1.0s
Reach (dumped)31.75 inches (80 cm)
Reach (ground)49.75 inches (126 cm)
Bucket cylinder3.5 inches (8 cm)
Height (at pin)126.75 inches (321 cm)
Clearance (dumped)98.5 inches (250 cm)
Rollback (ground line)45°
Breakout force (bucket)11800 lbs (5352 kg)
Lift capacity (full at pin)4650 lbs (2109 kg)
Transmission
Gears6 forward and 2 reverse
Options6-speed gear, 4-speed torque converter
Gear typegear
Gear detailsThree speeds, plus reverse, in two ranges
Torque converter typetorque converter
Torque converter gears4 forward and reverse