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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

FeatureGehl 6640Skid steerCase 85XTSkid steer
TypeSkid steerSkid steer
Lift DesignVerticalRadial
Years Made20042001-2005
Horsepower61.1 kW59.7 kW
Rating Operating Capacity (35% Tipping)816.5 kg771.1 kg
Rating Operating Capacity (50% Tipping)1088.6 kg1088.6 kg
Operating Weight3538.0 kg3651.4 kg
Maximum Travel Speed12.4 km12.2 km
Optional High Speed20.0 km—
Pump Capacity87.1 LPM76.8 LPM
Relief Valve Pressure206.8 Bar206.8 Bar
Optional Pump Capacity113.6 LPM—
Hydraulic Tank Capacity60.6 L62.5 L
Engine ManufacturerDeutzCase
Engine ModelBF4M20114-390
Engine TypeDieselDiesel
No of Cylinders44
Rated Speed2500 RPM2500 RPM
Torque Speed1600 RPM1200 RPM
Combustion ChamberDirect injectionDirect injection
EmissionsTier 3—
Compression Ratio17:517.0.1
Firing Order1-3-4-21-3-4-2
Gross Power64.1 kW59.7 kW
Displacement3108 cc3916.5 cc
Bore9.4 cm10.2 cm
Stroke11.2 cm12.0 cm
Peak Torque270 N∙m262 N∙m
Coolant Capacity10.0 L16.6 L
Engine Oil Capacity10.8 L10.4 L
Fuel Tank Capacity91.0 L65.5 L
Cab Height205.7 cm203.2 cm
Bucket Hinge Pin Height312.4 cm310.9 cm
Width170.2 cm151.6 cm
Length with Bucket359.4 cm363.7 cm
Dump Height231.8 cm234.4 cm
Dump Reach90.2 cm100.3 cm
Ground Clearance20.3 cm23.1 cm
Dump Angle40 °40 °
Rollback Angle30 °27 °
Departure Angle25 °28 °
Front Tire12 x 16.512×16.5
Rear Tire12 x 16.512×16.5
Tipping Load—2177.2 kg
Lift Breakout Force—2245.3 kg
Tilt Breakout Force—2800.9 kg
Raise Lift Arms—4.1 seconds
Lower Lift Arms—3.0 seconds
Bucket Rollback—2.0 seconds
Bucket Dump—2.5 seconds
Sourceheavyequipments.net archive (imported 2026-10)heavyequipments.net archive (imported 2026-10)
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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051