The Takeuchi TB 370 W is a compact excavator with 7.2 tonnes operating weight and wheeled chassis. Takeuchi has positioned the model as a gap-filler between heavy mini-excavators and classic mobile excavators. The special feature: a continuously adjustable chassis that allows track widths between 1,700 and 2,270 millimetres.
Hydraulically adjustable chassis for tight passages
The central feature of the TB 370 W is the hydraulic track adjustment. The driver can adjust the wheel position from the cabin, even while driving. The minimum track width of 1,700 millimetres makes the excavator narrow enough for gate entrances and narrow site access roads. At full working width of 2,270 millimetres, the chassis is stable for digging work with full boom.
The wheel suspension works with pendulum axles front and rear. This gives the TB 370 W off-road capability on uneven construction sites. The axle load is distributed over four wheels, which reduces ground pressure. For asphalt or paving work, this is an advantage over a tracked excavator, which leaves tracks.
Digging force and reach: dimensions in detail
The excavator achieves a maximum digging depth of 3,880 millimetres. The reach at ground level is 6,460 millimetres. The monoblock boom is 2,650 millimetres long, the bucket arm measures 1,770 millimetres. Takeuchi gives the breakout force at the bucket as 57 kilonewtons, at the arm 41 kilonewtons.
For comparison: A tracked Takeuchi TB 320 with similar operating weight achieves about 10 percent more digging force, but is slower on paved surfaces and causes higher wear. The TB 370 W can travel up to 30 kilometres per hour, which saves time on larger construction sites or when moving between job sites.
Engine and hydraulics: Performance to Stage V
The drive comes from Yanmar: a 4TNV98C-NPKB diesel engine with 3.3 litres displacement and 55.4 kilowatts output. The four-cylinder meets the EU Stage V emission standard with diesel particulate filter and SCR catalyst. The tank holds 140 litres, which at moderate load is sufficient for approximately 10 operating hours.
The hydraulics operate with variable pump output up to a maximum of 182 litres per minute. System pressure is 245 bar. Takeuchi uses a load-sensing system that adapts the volume flow to actual demand. This reduces fuel consumption and heat generation. The manufacturer specifies average fuel consumption of approximately 9 litres per hour, depending on duty cycle and attachment.
Cabin and operating concept
The cabin is ROPS/FOPS certified and offers 1.90 metres of internal height. The glazing extends to the floor, improving visibility of the excavator bucket and digging area. Two joysticks control boom, arm, bucket and slewing mechanism. The foot pedals are arranged separately for left and right tracks, which facilitates precise manoeuvring on tight construction sites.
Standard equipment includes a 7-inch colour display for machine parameters. Working profiles can be saved via the menu, such as for digging, grading or material handling. An optional quick coupler is hydraulically prepared. Those who regularly switch between bucket, grab or hydraulic hammer save several minutes per day.
Fields of application: for whom the wheeled compact excavator pays off
The TB 370 W is aimed at contractors in civil and road construction who work on changing construction sites. Typical areas of use are utility construction, foundation work in building construction and road renewal. The wheeled design makes sense where paved surfaces must be protected or transport between sites is frequent.
A calculation example: A company in utility construction works on three to five different sites daily. The TB 370 W drives itself between points without a lowbed trailer. At 20 kilometres of daily driving distance, this saves around 90 minutes compared to loading a tracked model. Extrapolated over 220 working days, that's 330 productive hours.
However: On soft ground or with steep slopes, the wheeled excavator reaches its limits. The contact patch is smaller than with tracks, the ground pressure higher. Those who work mainly on clay, peat or construction debris are better off with a chain-driven compact excavator.
Maintenance and service intervals
The engine oil change is due every 500 operating hours. The hydraulic oil filter is replaced after 1,000 hours, the hydraulic oil itself after 2,000 hours. The axle gears require an oil change every 1,000 hours. Takeuchi estimates service costs over 5,000 operating hours at around 12,000 euros, not including wear parts such as bucket teeth.
Wheel bearing maintenance is a service point that does not apply to tracked excavators. The hubs must be regreased every 500 hours. Tyres last between 2,000 and 4,000 operating hours depending on the duty cycle. A set of industrial tyres costs around 3,500 euros, which must be factored into calculations.
Availability and distribution
The TB 370 W has been available through the Takeuchi dealer network in Germany since early 2024. According to the manufacturer, delivery times are 8 to 12 weeks. The list price starts at around 95,000 euros net, depending on equipment and attachments. A comparable mobile excavator from a European manufacturer costs about 15 percent more, but usually offers longer service intervals and higher resale values.
Conclusion: Specialist with a clear profile
The Takeuchi TB 370 W occupies a niche between classic mini-excavators and heavy mobile excavators. The hydraulic track adjustment is technically mature and provides real added value on changing construction sites with tight access. For those who regularly work on paved surfaces and want to save transport time, this offers a well-thought-out concept.
For contractors who mainly dig in terrain or soft soils, the tracked excavator remains the first choice. The TB 370 W is not an all-rounder, but a specialized tool for defined applications. Those who know this profile and make full use of it get a machine that pays for itself through shorter setup and transport times.
