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Kubota B670 Backhoe Specs

Compatible Tractors

3-Point hitch ............. Category 1
Tractor models ............. Kubota B6100, B6100, B7100HST
Front tires ............. 20.5-8.00x10
Rear tires ............. 29-12.00x15
Hydraulic flow ............. 3.0 gpm (11.5 lpm)

Dimensions and Weight

Transport height ............. 5 ft 1 in (1550 mm)
Transport overhang ............. 3 ft 7 in (1090 mm)
Ground clearance ............. 11.5 in (293 mm)
Operating weight ............. 710 lbs (322 kg)

Operating Specifications

Digging depth (maximum) ............. 6 ft 2 in (1880 mm)
Digging depth (2-ft flat bottom) ............. 6 ft 1 in (1855 mm)
Loading height ............. 5 ft (1525 mm)
Reach from swing pivot ............. 8 ft 4 in (2540 mm)
Bucket rotation ............. 180 deg
Swing arc ............. 180 deg
Stabilizers spread (transport) ............. 3 ft 6 in (1065 mm)
Stabilizer spread (operating) ............. 6 ft (1828 mm)
Undercut (from center line of swing pivot) ............. 1 ft 11 in (585 mm)
Bucket Digging Force ............. 4000 lbs (1820 kg)
Dipperstick Digging Force ............. 2400 lbs (1090 kg)
Dipperstick lift ability (boom up, lift with dipper cyl. only) ............. 400 lbs (182 kg)
Boom lift ability (dipper and boom extended, lift with dipper cyl. only) ............. 150 lbs (68 kg)

Hydraulic Cylinders

Boom cylinder stroke ............. 15.8 in (400 mm)
Boom cylinder piston diameter ............. 2 in (50.8 mm)
Boom cylinder lenght (retracted/extended) ............. 23.5 in (597 mm) / 39.3 in (998 mm)
Dipper cylinder stroke ............. 15.8 in (400 mm)
Dipper cylinder piston diameter ............. 2 in (50.8 mm)
Dipper cylinder lenght (retracted/extended) ............. 23.5 in (597 mm) / 39.3 in (998 mm)
Bucket cylinder stroke ............. 13.1 in (332 mm)
Bucket cylinder piston diameter ............. 2 in (50.8 mm)
Bucket cylinder lenght (retracted/extended) ............. 20.6 in (523 mm) / 33.8 in (860 mm)
Stabilizer cylinder stroke ............. 11.3 in (287 mm)
Stabilizer cylinder piston diameter ............. 2 in (50.8 mm)
Stabilizer cylinder lenght (retracted/extended) ............. 17 in (432 mm) / 28.3 in (720 mm)
Swing cylinder stroke ............. 8.6 in (218 mm)
Swing cylinder piston diameter ............. 2 in (50.8 mm)
Swing cylinder lenght (retracted/extended) ............. 15 in (381 mm) / 23.6 in (600 mm)

Backhoe Buckets

Width ............. 9 in (228 mm)
Number of teeth ............. 2
Struck capacity ............. 0.50 cu.ft (0.014 cu.m)
Heaped capacity ............. 0.63 cu.ft (0.018 cu.m)
Weight ............. 33 lbs (15 kg)

Width ............. 13 in (330 mm)
Number of teeth ............. 3
Struck capacity ............. 0.75 cu.ft (0.021 cu.m)
Heaped capacity ............. 1.01 cu.ft (0.028 cu.m)
Weight ............. 38 lbs (17 kg)

Width ............. 16 in (405 mm)
Number of teeth ............. 3
Struck capacity ............. 0.94 cu.ft (0.027 cu.m)
Heaped capacity ............. 1.25 cu.ft (0.036 cu.m)
Weight ............. 73 lbs (19.5 kg)