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Michigan 380B

Series: Michigan Wheel Dozer

Source: https://www.wirtgen-group.com/ocs/en-ca/wirtgen/w-380-cri-71

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The 380B from Michigan is part of the Michigan Wheel Dozer series. The engine delivers 643.8 hp (426.5 kW), has 12 cylinders, with a displacement of 28,021.9 cm³. Rated speed is 2,100 rpm. The unladen weight is 51,560 kg. The wheelbase measures 4,675.6 mm. Ground clearance is 737.6 mm. The tank holds 757.5 litres. The gearbox has 4 forward gears. There are also 4 reverse gears. Maximum torque is reached at 1,300 rpm. The hydraulic tank holds 757.5 litres. The cooling system holds 208.2 litres. The oil fill is 102.2 litres. The electrical system runs on 24 V. The engine fitted is the VTA-28-C. Tyre size: 37.25-35 (30PR) E-3. Rated output across the Michigan range ranges from 75 to 735.6 hp; the 380B sits at the top of that range with 643.8 hp. Its immediate neighbours are the L320 below it with 458.3 hp and the L480 above it with 735.1 hp. 30 Michigan models across 6 series are on record. The model is listed under Mining equipment. 20 verified figures from 1 source are on file.

Technical data

Engine

Engine model	VTA-28-Ccorrect
Power	643.8 hp (426.5 kW)correct
Rated speed	2,100 rpmcorrect
Speed at max. torque	1,300 rpmcorrect
Cylinders	12correct
Displacement	28,021.9 cm³correct
Coolant capacity	208.2 lcorrect
Engine oil capacity	102.2 lcorrect

Dimensions and weights

Wheelbase	4,675.6correct
Ground clearance	737.6correct
Unladen weight	51,560 kgcorrect

Drivetrain and chassis

Gearbox type	Clark countershaft powershift transmissioncorrect
Forward gears	4correct
Reverse gears	4correct
Tyre size	37, 25-35 (30PR) E-3correct
System voltage	24 Vcorrect

Working data

Hydraulic oil capacity	757.5 lcorrect
Fuel tank capacity	757.5 lcorrect

Other data

Cab height	4,572correct

Where this model stands

Power-to-weight ratio: 8.3 kW/t (426 kW / 51.6 t)

Stronger than 89% of the mining equipment in the register — out of 945 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Michigan 380B have?

The Michigan 380B delivers 644 hp.

How much does the Michigan 380B weigh?

The unladen weight is 51,560 kg.

What engine does the Michigan 380B have?

12 cylinders, 28,022 cm³ displacement.

What to check before buying

Check the hour meter against the service records — a replaced instrument is the most common gap.
Compare the data plate and chassis number with the papers.
Check the weights in the papers against the figures here — attachments change them.
Load the hydraulics and watch for sag.
Ask about parts availability for this build year — the running costs hang on it.

A general list for this type of machine — no substitute for an inspection or an appraiser.

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This page carries 20 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.

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Sources: [1]

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