- Load Height - Std: 10.18 ft / 3100 mm
- Reach From Swivel - Std: 15.31 ft / 4665 mm
- Dig Depth - Std: 12.06 ft / 3675 mm
- Reach At Load Height - Std: 3.6 ft / 1095 mm
Published dimensions and weight
Komatsu WB70A-1
The Komatsu WB70A-1 pairs the 4D98E-1FA engine (70.8 hp) with an operating weight near 5.7 t.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale

01Dimensions referenceLength × width × height
02Operating Weight 4wd12456.2 lb5650 kg
03Selected published values49
Loader backhoes are commonly used for digging, trenching, loading and general site work with one carrier. Published rows for Komatsu WB70A-1 include published bucket capacity of 0.92 yd3 / 0.7 m3, published engine power of 70.8 hp / 52.8 kw, published hydraulic flow of 30.7 gal/min / 116 L/min. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Load Height - Std” field (10.18 ft / 3100 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Reach From Swivel - Std” field (15.31 ft / 4665 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Dig Depth - Std” field (12.06 ft / 3675 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Backhoe
Load Height - Std10.18 ft3100 mm
Reach From Swivel - Std15.31 ft4665 mm
Dig Depth - Std12.06 ft3675 mm
Reach At Load Height - Std3.6 ft1095 mm
Reach From Swivel - Ext17.45 ft5316 mm
Dig Depth - Ext14.41 ft4390 mm
Bucket Dig Force - Std9259.42 lb4200 kg
Load Height - Ext11.85 ft3611 mm
Reach At Load Height - Ext5.09 ft1551 mm
Dimensions
Transport Width6.07 ft1850 mm
Transport Height10.15 ft3091 mm
Wheelbase7.06 ft2150 mm
Ground Clearance1.45 ft440 mm
Height To Top Of Suspended Cab8.73 ft2660 mm
Loader
Clearance At Max Dump Height8.14 ft2480 mm
Reach At Max Dump Height2.86 ft870 mm
Dig Depth4.34 in110 mm
Lift Capacity At Full Height4651.76 lb2110 kg
Bucket Capacity0.92 yd30.7 m3
Bucket Width72.84 in1850 mm
Bucket Breakout Force9693.77 lb43.12 kN
Engine
Number Of Cylinders44
Engine Make22382238
Engine Model4D98E-1FA4D98E-1FA
Net Power70.8 hp52.8 kw
Power Measured @2500 rpm2500 rpm
Torque Measured @1200 rpm1200 rpm
Net Max Torque185.2 lb ft251 Nm
Displacement202.5 cu in3.4 L
Operational
Fuel Capacity18.5 gal70 L
Operating Weight 4wd12456.2 lb5650 kg
Max Weight14109.6 lb6400 kg
Hydraulic System Fluid Capacity17.2 gal65 L
Oil System Fluid Capacity2.7 gal10 L
Cooling System Fluid Capacity4 gal15 L
Front Axle Fluid Capacity1.1 gal4 L
Rear Axle Fluid Capacity1.4 gal5.2 L
Tire Size Front - 2wd / 4wd12.5 x 2012.5 x 20
Rear Tires Size 2wd/4wd12.5 x 2012.5 x 20
Operating Voltage12 V12 V
Alternator Supplied Amperage60 amps60 amps
Transmission
Transmission TypeHydrostaticHydrostatic
Number Of Forward Gears44
Number Of Reverse Gears44
Max Speed - Forward24.3 mph39 km/h
Max Speed Reverse24.3 mph39 km/h
Hydraulic
Pump Typetwo gear pumpstwo gear pumps
Pump Flow Capacity30.7 gal/min116 L/min
Relief Valve Pressure2900.8 psi20000 kPa
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Manufacturer-published specifications.