The Takeuchi TB 370 W is a compact excavator with a wheeled chassis, specifically developed for confined construction sites. With an operating weight of 3.7 tons and variable track width, the model positions itself between classic mini excavators and larger wheeled machines. The Japanese manufacturer Takeuchi has designed the concept around mobility and flexibility — two factors that determine downtime and profitability in urban civil engineering.
Variable track width for tight passages
The central feature of the TB 370 W is the hydraulically adjustable track width. It can be extended from 1.5 meters to 1.9 meters. In transport position, the machine fits through standard gates and narrow access roads. On the construction site, the widened track provides greater stability during excavation work. The adjustment is made from the cabin without the driver needing to exit. For utility installation in city centers or property entrances, this means: less logistics effort, more effective working time.
The transport width of 1.5 meters allows access roads that track excavators of comparable power would exclude. A conventional 3.5-ton track excavator is at least 1.7 meters wide. The gain: Around 20 centimeters that can decide between feasibility or rejection.
Wheeled chassis instead of tracks: advantages and disadvantages
Takeuchi uses four wheels instead of a tracked chassis on the TB 370 W. This provides higher speed on paved ground: up to 40 km/h is possible without a low-loader. All-wheel steering enables turning circles under 3 meters. This saves maneuvering time on tight construction sites.
The disadvantage becomes apparent on soft ground. The ground pressure is higher than with tracked machines, and grip on wet clay or sandy soils is limited. For classic earthwork on undeveloped terrain, the track excavator remains the first choice. The TB 370 W is instead designed for asphalt or gravel surfaces — construction sites with existing infrastructure.
Digging depth and hydraulic power in practical context
With a maximum digging depth of 3.2 meters, the TB 370 W covers typical utility trenching depths. For comparison: water pipes usually lie between 1.5 and 2 meters, sewage pipes up to 2.5 meters. This is sufficient for standard municipal earthwork tasks. Those who need to dig deeper require larger machines or a long-arm boom.
The tearing force is 30 kN at the bucket stick. This corresponds to approximately 3 tons of pulling force — sufficient for compacted soils of classes 4 to 5. On rocky ground or heavily rooted areas, the machine reaches its limits. Here a hydraulic hammer as an attachment would be required.
Quick coupler for flexible tool changes
Takeuchi supplies the TB 370 W with a quick coupler as standard. Buckets, grippers, or ditch cleaning buckets can be changed without tools. The change takes less than a minute. This pays off on construction sites where multiple changes between excavation, compaction, and backfilling are needed. A quick coupler retrofit costs separately between 1,500 and 2,500 euros — here it comes from the factory.
Compact dimensions and zero-tail design
The TB 370 W operates according to the zero-tail principle. The rear does not swing beyond the machine width. When working along house walls or at road edges, the machine can be positioned directly against the wall without collision risk. The superstructure rotates within the profile of the wheels. This is standard in utility trenching, but not universal for all wheeled machines.
The total length is 4.8 meters, the cab height 2.5 meters. This allows the machine to fit through typical gate openings and into standard garages. For transport on a trailer, it remains under 3.5 tons gross weight — a Class B driving license with trailer is sufficient.
Drive and fuel consumption
The engine is a Yanmar diesel with 2.2 liters of displacement and 27 kW (37 hp). The manufacturer specifies consumption of 3.5 liters per operating hour — at medium load. In practice, values are often higher: during continuous excavation work with high hydraulic utilization, 4 to 5 liters is realistic. A comparable track excavator has similar values but usually does not have a road-worthy chassis. The TB 370 W must move the additional weight of the wheel suspension and steering with the same engine.
The machine complies with EU Stage V emissions standards. An SCR catalytic converter with AdBlue injection and a diesel particulate filter are installed. The AdBlue tank holds 10 liters, sufficient for approximately 100 operating hours.
Cab and operating concept
The cab provides space for one driver and meets ROPS and FOPS standards for rollover protection and protection from falling objects. Glazing is all-around, with unrestricted visibility to the rear and sides. A reversing camera is standard. Operation is via two joysticks, the layout conforms to ISO standards — anyone familiar with other excavators will find their way immediately.
Air conditioning, radio, and a height-adjustable seat are included. The control panel is clear and simple, without touchscreen or digital gimmicks. For rental companies, this is an advantage: less electronics means less repair risk. Training new operators takes less than an hour.
Application areas and target groups
The TB 370 W is aimed at civil engineering contractors working in urban areas. Typical tasks: utility installation, house connections, minor foundation work, paving work. The model is also interesting for rental companies — the combination of compactness and road-worthiness covers a broad customer spectrum.
The machine is less suitable for major earth movements or unimproved terrain. Those who primarily excavate building pits or work on changing soils should stick with the classic track excavator. The TB 370 W is not an all-rounder, but a specialist for urban construction sites with solid ground.
Availability and distribution in Germany
In Germany, Takeuchi has been imported for 40 years by Wilhelm Schäfer. The company from Twist oversees distribution and the service network. Details on the 40-year import partnership show that spare parts availability and workshop network are well-developed. For operators, an important factor: an excavator waiting three days for a spare part costs money.
The TB 370 W is available from stock. Takeuchi provides prices on request — standard in this segment. Comparable wheeled compact excavators range between 45,000 and 60,000 euros net, depending on equipment. Used models are still rare, as the TB 370 W has only recently been on the market. Further technical details on the TB 370 W with variable track width can be found in the product documentation.
Conclusion: niche solution with clear profile
The Takeuchi TB 370 W is not a machine for every application. It is built for tight construction sites, paved ground, and jobs where mobility counts. Those with these requirements get a well-thought-out concept: variable track width, road-worthiness, compact dimensions. Those needing all-around capability are better served with a track excavator. This does not make the TB 370 W worse — only more specialized. And in its niche, it is a sensible solution.
