“720mm access” gets mentioned a lot on this site — it’s the number behind the hero section, the specs table, half the blog. It’s worth actually introducing the machine that makes that number real, rather than leaving it as an abstract spec. Meet the Kubota K008-3.
What It Actually Is
The K008-3 sits in Kubota’s smallest excavator class — under a tonne, built specifically for jobs where standard equipment simply has nowhere to go. It’s not a scaled-down toy version of a real excavator; it’s a genuine, purpose-built machine that happens to be small enough to fit through a door.
The Numbers That Matter
– Width, tracks retracted: 700mm — narrower than most side gates
– Width, tracks extended: 860mm — widened out for stability once it’s actually digging
– Operating weight: ~0.98 tonnes — light enough to cross a lawn without leaving it rutted
– Max dig depth: 1.72m
– Max reach: 3.03m
– Breakout force: 10kN — modest next to a full-size excavator, but enough to work through Brisbane’s clay-heavy ground on the scale this machine is built for
That retracting track frame is the whole trick: wind the tracks in to 700mm to get through the gate, then widen them back out to 860mm once it’s on site, trading width for a lower centre of gravity and better stability on soft or sloped ground.
What It’s Genuinely Good For
– Getting to a dig site through a standard 700-900mm side gate — the exact problem most of this site is about
– Working on lawns, pavers, and garden beds without the ground damage a heavier machine would leave
– Trenching, small footings, and site prep at a scale that suits a backyard, not a construction site
Where It Has a Real Limit — and Why That’s Fine
A 1.72m dig depth is shallow next to a standard excavator, and it’s worth being upfront about that: a job needing a genuinely deep footing or a deep trench run isn’t necessarily a one-machine job on a tight block. Sometimes that means finishing the last section by hand once the machine’s reached its limit, or bringing in a different approach for the deeper sections. That’s a normal, planned-for part of restricted-access work, not a surprise sprung on the day.
The other honest trade-off: this class of machine runs a conventional tail swing, not a zero-swing design — the rear counterweight does overhang the tracks when it rotates. On most restricted-access jobs that’s a non-issue, since the whole point of the machine is squeezing through the gate, not working millimetres from a fence once it’s inside. On tighter yards where both problems show up at once — a narrow gate and a boundary fence right where the machine needs to turn — that’s simply factored into how the job gets worked, with the operator positioning and sequencing digging to keep the swing clear.
Why This Specific Machine, Not Just “A Micro Excavator”
Plenty of gear gets marketed as “compact” or “tight-access.” The number that actually matters is the one measured with a tape at the gate, not the one on a brochure. 700mm retracted is a real, specific figure that either clears a given gate or it doesn’t — which is why it’s the number on this site, not a vaguer claim that sounds good but doesn’t hold up when someone measures their own side gate.
Getting It Right the First Time
The 720mm claim on this site isn’t a rounded-up marketing figure — it’s tied to a specific, real machine built for exactly this job. Knowing what it can and can’t do is part of giving an honest answer on whether a job’s doable, rather than promising something that falls over once the machine’s actually on site.
Got a side gate you’re not sure anything will fit through?
GateDig brings in the right machine for the access you’ve actually got — including genuine sub-800mm gear for jobs a standard excavator can’t reach.