Challenger MT645B VS Ursus 934 specs comparison

Challenger MT645B

General Infos

Make	Challenger
Model	MT645B
Country	United states
Production	From 2005  Until 2008
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	Challenger MT645B Manual

Dimensions, sizes and tires

AG front tires	380/85R34
AG rear tires	480/80R46
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	18,308 lbs or 8304 kg
Length	206 inches [523 cm]
Width	118 inches [299 cm]
Height	123.6 inches [313 cm]
Wheelbase	121.1 inches [307 cm]
Ground clearance	22.4 inches [56 cm]
Turning radius	-
Rear tread size	60 to 88 inches
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	449 ci or 7.4 L
Cylinders	6 cylinders 24 valves
Engine power	235 hp or 175.2 kW
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	159 gal or 601.8 L
Oil capacity	20 qts or 18.9 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Challenger MT645B Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	775
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	150 amps

Clutch and gearbox specs

Trans system	TechStar
Trans type	continuously variable transmission (CVT)
Trans gears	infinite (2-range) forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	inboard planetary
Steering	power
Braking system	hydraulic wet disc
Cabin type	Cab standard with heat and A/C
Differentiel lock	electrohydraulic front and rear

Hydraulics specifications

System	pressure flow compensated
Valves	4 to 6
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	26.4 gal or 99.9 L
Hydraulic pressure	2900 psi or 200.0 bar
Max flow	39 gpm or 147.6 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	172.30 hp or 128.5 kW
Fuel consumption	12.0 gal/hour or 45.4 l/hour
Pulling power	16,954 lbs or 7690 kg

Power take-off (PTO) specs

Claimed power	200 hp or 149.1 kW
Real power	221.55 hp or 165.2 kW
Engine @RPM	540@2037 (rpm)
PTO Clutch	electro-hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	12.0 gal/hour or 45.4 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III
Rear hitch lift	15,600 lbs or 7076 kg
Front hitch	II
Front hitch lift	7,700 lbs or 3492 kg

Ursus 934

General Infos

Make	Ursus
Model	934
Country	Poland
Production	From 1991  Until 2009
Price	-
Tractor type	-
Fuel	diesel
Service repair manual	Ursus 934 Manual

Dimensions, sizes and tires

AG front tires	12.4-24
AG rear tires	18.4-34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	10494 lbs or 4760 kg
Length	163.2 inches [414 cm]
Width	82.2 inches [208 cm]
Height	115.4 inches [293 cm]
Wheelbase	94.3 inches [239 cm]
Ground clearance	15 inches [38 cm]
Turning radius	-
Rear tread size	59.1/62/65/67.9/70.9/73.8 inches
Front tread size	59.5/63.4/67.3/71.3 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	278.4 ci or 4.6 L
Cylinders	4 cylinders
Engine power	78.9 hp or 58.8 kW
Engine RPM	2200 (rpm)
Torque	204.7 lb-ft or 277.6 Nm
Torque RPM	1600 (rpm)
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	23.8 gal or 90.1 L
Oil capacity	10.6 qts or 10.0 L
Oil change	-
Starter motor	electric
Starter volts	24 V
Parts And Accessories	Ursus 934 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	135 amps
Cold Amps	-
Ground force	-
Charging system	alternator
Charging Volts	12 V
Charging Amps	55 amps

Clutch and gearbox specs

Trans system	-
Trans type	two-speed power shift
Trans gears	16 forward and 8 reverse
Clutch system	350mm hydraulic dry disc

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	-
Steering	power
Braking system	dry disc
Cabin type	Cab standard with heat
Differentiel lock	mechanical rear

Hydraulics specifications

System	-
Valves	-
Pump flow	10.8 gpm or 40.9 lpm
SVC flow	-
Steering flow	-
Tank capacity	12.15 gal or 46.0 L
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	68.1 hp or 50.8 kW
Real power	-
Engine @RPM	540@1890 (rpm)
PTO Clutch	hydraulic
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	1000
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	position and draft control
Rear hitch	II
Rear hitch lift	9094 lbs or 4125 kg
Front hitch	-
Front hitch lift	-

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