A HengWang reference guide consolidates operating weight classes, price bands, and the Komatsu D575A-3 Super Dozer benchmark into a single procurement-oriented overview. [S1]
Specifying and sales engineers need defensible weight and price brackets before recommending a dozer class, because the wrong class triggers transport-permit rework, ground-pressure failures, or capital over-spec on jobs that a mid-sized unit can clear. The guide maps three weight classes to B2B applications, pairs each with new-equipment pricing, and flags undercarriage and fuel as the dominant TCO drivers. It also gives a single reference point for the largest production dozer ever shipped, useful when a client asks why a D9-class unit is not always the right answer. [S1]
What the guide covers
The guide is framed as a B2B procurement reference for fleet expansion and replacement decisions, focusing on operating weight, acquisition cost, and site fit rather than raw horsepower. [S1]
It defines a bulldozer as a continuous tracked tractor with a front blade and optional rear ripper, citing the Encyclopaedia Britannica for the tracked-tractor lineage and listing land clearing, grading, and mining as the primary applications. [S1]
Tracks are highlighted as the mechanism that reduces ground pressure and enables work on sandy, muddy, or unstable terrain, which is the engineering reason class selection matters for site conditions. [S1]
Weight classes and price bands as published
Three weight classes are defined by D3-D5, D6-D8, and D9-D11 equivalents, with stated operating weight ranges of 8,000 to 10,000 kg, 15,000 to 35,000 kg, and 45,000 to 110,000 kg respectively. [S1]
New equipment pricing is given as $80,000 to $150,000 for small units, $200,000 to $600,000 for medium, and above $1,500,000 for large mining units. [S1]
On the used side, Ritchie Bros is cited as the auction source, with depreciation implying 50 to 60 percent residual value on a five-year-old medium dozer. [S1]
Implications for the bulldozer category
The guide positions the medium class as the industry workhorse for highway construction and the segment where efficiency and ROI concentrate, with the D9 and larger framed as mining-specific assets. [S1]
Total cost of ownership is driven less by purchase price than by undercarriage wear and fuel consumption scaling with engine size, which is the key message for anyone writing a lifecycle cost model. [S1]
The Komatsu D575A-3 Super Dozer is presented as the size benchmark at approximately 152,600 kg, 1,150 HP, and 69 cubic meter blade capacity, with the explicit note that it is no longer in production and impractical for most projects. [S1]
Checking the primary source
The article is hosted on hengwangm.com and is a manufacturer-authored reference, so weight and price figures should be cross-checked against OEM specification sheets for any specific model before they enter a bid, quote, or internal standard. [S1]
Ritchie Bros auction records are the cited used-market reference and should be consulted directly for current residual values, since depreciation percentages shift with brand reputation and maintenance history. [S1]
Lifespan and undercarriage cost claims in the FAQ should be verified against the relevant OEM service interval documents before being repeated in a customer-facing proposal. [S1]
Primary notice: Industry news.
Product encyclopedia: Bulldozer.