Mini Excavator Sizes Explained: From Micro to Midi by the Ton

The fastest way to buy the wrong machine is to shop by horsepower or by price and ignore weight class. Operating weight is the number that sorts the whole market into bands, and once you know which band fits your work, the rest of the spec sheet falls into place. This guide walks through mini excavator size from the smallest micro machines up to the midi class, and tells you what each band actually digs, how it moves between sites, and where it gets stuck.

Numbers below use industry weight bands, not any one model. For exact dig depth and reach you still read the spec sheet — but the band tells you which sheet to even pull.

Almost every mini excavator sold falls into one of four bands. The boundaries are loose and overlap a little between makers, but the working logic holds:

• Micro (under 1.2 ton): the micro digger class. Fits a standard gate, works indoors, loads onto a light trailer.
• 1 to 2 ton: the smallest practical full-feature diggers. A 1 ton mini excavator or 1.5 ton excavator still trailers behind a pickup.
• 2 to 3.5 ton: the volume class. A 2 ton mini excavator through a 3.5 ton mini excavator covers most utility and landscaping work.
• 5 ton and up: heavier digging, into mid size excavator and midi territory once you pass 8 ton.

Bigger is not better. Every band up costs more in fuel, transport, and access. Match the band to the heaviest job you do on a normal week, and rent up for the rare outlier.

The micro excavator exists to get into places nothing else can. Micro digger size is built around one rule: clear a standard pedestrian gate — roughly 700 to 800 mm — with the tracks retracted. That makes it the tool for back gardens, indoor demolition, basements, and anywhere a wider machine simply won't pass.

The trade-off is dig force and reach. A micro digger handles light trenching, small footings, drainage, and tidy-up work, but it isn't built to move serious volume. Operators who try to run a micro on a job that needs a 2 ton machine spend the day waiting on the bucket. Buy the micro for access, not for production.

Within the micro class you will find machines labelled anywhere from 0.8 ton up to just under 1.2 ton. A 0.8 ton digger — also listed as an 0.8 t excavator, 0.8 tonne micro excavator, or simply an 0.8 micro digger — is the narrowest practical digger on the market, and buyers searching for the narrowest excavator or narrowest micro digger usually land here. The sub compact excavator and ultra compact excavator labels are often applied to this same weight range. A micro mini digger or micro mini excavator at 0.8 t is a genuine small tracked excavator — not a toy — and can dig drainage channels, service trenches, and planting beds in gardens where nothing larger will fit. Searches for a micro mini excavator for sale or micro digger excavator almost always resolve to machines in the 0.8 to 1.2 t window. The smallest digger size that still earns its keep on real site work is typically a narrow digger of 750 to 780 mm retracted track width — wide enough to be stable, narrow enough to clear a standard door frame.

Step up a band and you get the smallest machines that still feel like a full digger. A 1 ton mini excavator keeps the gate-friendly width of the micro but adds real breakout force, and the variable-width undercarriage is near-universal here — tracks pull in to pass, then spread to dig with stability.

This band — 1 ton, 1.5 ton, up to 1.8 ton mini excavator — is the sweet spot for landscapers and small contractors who tow behind a pickup and still need to thread tight access. If your work is half tight-access and half open dirt, this is usually where you land. Our mini excavator range lists transport width retracted and extended for every model so you can check the gate clearance before you commit.

Buyers in this band search under a wide variety of labels: 1 ton excavator, 1 ton mini excavators, excavator 1 ton, one ton excavator, 1t mini excavator, or 1 tonne digger all mean the same weight class. An 1.2 ton mini excavator or 1.2 tonne excavator sits just above the micro boundary — sometimes called a 1 2 ton excavator or a 1 ton micro digger. The 1.5 t mini excavator — also listed as a 1.5 t digger, 1.5 tonne mini digger, or 1.5 ton digger for sale — is the most searched sub-class in this band because it balances gate clearance with meaningful digging output. Step up slightly to a 1.6 ton digger or 1.7 tonne excavator and you gain bucket size without sacrificing trailering behind a standard pickup. Buyers searching for the best 1.7 t excavator or best 1.7 tonne excavator are nearly always comparing swing-boom compact machines in this sub-class. The 1.8 tonne digger or 1.8 t excavator sits at the top of this band — still one-person trailerable but noticeably heavier-digging than a pure 1 t machine. A 1 ton digger width retracted is typically 980 to 1,050 mm; a 1 ton mini digger width extended goes to 1,300 to 1,500 mm depending on model. 1 ton digger for sale, 1 ton mini excavator for sale, and 1t mini excavator for sale are among the highest-volume purchase searches in the mini excavator market, so supply and resale value are both strong in this class. Buyers looking for a Chinese 1 ton excavator or 1 ton chinese excavator will find factory-direct pricing noticeably lower than domestically branded equivalents — and a 1 ton excavator price or 1 ton mini excavator price from an export manufacturer typically reflects a simpler supply chain and lower overhead. A 1.5 ton mini excavator for sale, 1 5 ton mini digger, or 1.5 2 ton mini excavator search will return both new and used listings; on the used market, check track wear and hydraulic seals first. The 1.9 tonne excavator sits at the top of this band and is nearly interchangeable with the 2 t class for most site work, differing mainly in bucket capacity and transport weight.

This is the band most buyers actually need, and the one most rental fleets stock deepest. A 2 ton mini excavator or a 3 ton mini excavator has enough reach, dig depth, and bucket force to handle utility trenching, footings, drainage runs, and landscaping without feeling underpowered. A 3.5 ton mini excavator sits at the top of the band and is still trailerable for most operators.

The catch is transport. By the time you're at 3.5 ton you've usually outgrown a light trailer and need something rated higher, plus a vehicle that can pull it legally loaded. If you only occasionally need this much machine, that transport math is the reason to size down and rent up. If you need it every week, this is your daily driver.

The sub-weights within this band are worth knowing. A 2 ton digger — also called a 2 ton excavator, 2t mini excavator, or excavator 2 ton — is the entry to the volume class. A 2.5 ton excavator or 2.5 t digger (sometimes listed as a 2.5 tonne digger or 2.5 ton mini excavator) adds meaningful bucket capacity over a 2 t without a big jump in transport difficulty. The 2.7 t excavator and 2.8 ton digger fill the middle of the band and are common in European markets where incremental tonnage steps matter for hire pricing. A 3 ton excavator or 3 ton digger — also searched as a 3 t excavator, 3 ton mini digger, or 3tonne digger — is the most-rented weight class in UK and Australian fleets. The 3.5 t excavator, 3.5 ton excavator, or 3.5 tonne digger at the top of the band is often listed interchangeably as a 3 4 ton digger or a 3 4 tonne mini digger. Searches for 2 ton excavator for sale, 2 ton mini excavator for sale, 2t excavator for sale, 2 ton digger for sale, 3 ton excavator for sale, 3 ton mini digger for sale, 3.5 tonne excavator for sale, 3.5 ton mini digger for sale, and 3.5 tonne digger for sale are among the highest-volume purchase searches globally. If you are comparing options for the best 2 ton mini excavator, best 3 ton mini excavator, or best 3.5 ton excavator, focus on swing boom availability, auxiliary hydraulic flow for attachments, and whether the undercarriage is fixed or variable-width. A 2 ton excavator price or 3 ton excavator price from a factory-direct exporter typically runs 30 to 50% below the equivalent spec at a domestic dealer — relevant if you are comparing new machine total cost of ownership.

Past 5 ton you leave the strict mini class and head toward mid size excavator and midi machines. A 5 ton mini excavator digs deeper, swings a bigger bucket, and holds itself steady on heavier work, but it needs a dedicated trailer and a more serious operator. The 6 ton and 8 ton machines push that further.

The honest line: most buyers who think they need a 5 ton machine actually have a handful of deep jobs and a lot of light ones. Sizing the whole purchase around the deepest trench you cut twice a year is how fleets end up over-machined. Spec for your normal week, and rent the big digger for the deep job.

The 4 ton excavator sits in a gap that confuses a lot of buyers. At 4 t it is still technically a compact machine, but it has left the weight range where a pickup-and-trailer combination works easily. A 4 ton mini excavator — searched as a 4 tonne digger, best 4 ton excavator, or best 4 ton mini excavator — delivers longer reach, deeper max dig depth, and a bigger bucket than anything in the 3.5 t band. Many utility contractors who do site clearance plus occasional deep service trenching settle here. A 4.5 ton excavator or 5.5 ton excavator starts to look like a proper midi machine in cycle time and swing arc even if it still wears a compact label in the brochure. Buyers searching for a 4 ton digger for sale or 4 ton mini digger for sale will find that resale value in this weight class is strong because rental fleets buy heavily here.

Once you cross into a 6 ton excavator or 6 ton digger — sometimes listed as a 6 ton mini excavator, 6k mini excavator, or 6000 lb mini excavator — you are firmly in midi territory. A 7 ton mini excavator or 7 tonne excavator for sale is in the same class, capable of foundation excavation, road drainage, and serious earthwork. These machines still have compact origins but transport like a full-size machine. A 5 ton digger, 5 ton mini digger, or excavator 5 ton sits right at the transition point — trailerable with a purpose-rated unit, but no longer in the casual-tow category. The best 5 ton excavator and best 5 ton mini excavator shortlists almost always come down to lift capacity at max reach and hydraulic flow for breaker attachments. A 5 ton mini excavator for sale or 5 ton digger for sale at the right spec can substitute for a 6 t machine on most daily utility work.

For buyers looking at the upper end, the largest mini excavator most makers produce is in the 6 to 8 t range before the product line switches to full-size naming. A 10 ton mini excavator is a large midi machine in output. The best mid size excavator and best 8 ton excavator searches come from buyers stepping past the mini class entirely into foundation and civil work. The midi digger for sale and medium size excavator for sale market overlaps with the top of the mini range from about 6 t upward. If you are comparing a 6 ton digger for sale against a 4 t option, the honest question is: can your trailer and tow vehicle handle the extra weight, and does your access allow the extra width and tail swing?

US buyers frequently search by the pound rather than the tonne, and the conversion is straightforward: one metric ton is 2,205 lb, and machines are quoted at operating weight including fuel, fluids, and standard bucket. Here is how the weight bands translate:

• Under 1.2 t (micro): under 2,645 lb. A 2000 lb mini excavator is at the very light end of the class.
• 1 to 1.5 t: roughly 2,200 to 3,300 lb. A 3000 lb mini excavator is about 1.4 t; a 3500 lb mini excavator is roughly 1.6 t.
• 1.5 to 2 t: 3,300 to 4,400 lb. A 4000 lb mini excavator is just under 1.8 t.
• 2 to 3 t: 4,400 to 6,600 lb. A 5000 lb mini excavator is around 2.3 t; a 6000 lb mini excavator is 2.7 t; a 6000 lb excavator sits in the volume class.
• 3 to 3.5 t: 6,600 to 7,700 lb. A 7000 lb mini excavator is 3.2 t; a 7500 lb mini excavator is 3.4 t.
• 3.5 to 5 t: 7,700 to 11,000 lb. An 8000 lb mini excavator is about 3.6 t; a 10000 lb mini excavator is roughly 4.5 t; an 11000 lb mini excavator for sale sits near 5 t.
• 5 t and above: over 11,000 lb. A 12000 lb mini excavator is 5.4 t; a 16000 lb excavator for sale is 7.3 t; an 18000 lb mini excavator for sale is about 8 t; a 25000 lb excavator is a full 11 t midi.

The mini excavator weight, small excavator weight, mini ex weight, and average weight of a mini excavator found in spec sheets all refer to operating weight before any attachment. Add 200 to 400 lb for the shipping crate when pricing freight. When comparing machines listed in lb against those listed in tonnes, divide the lb figure by 2,205 to get metric tons.

Mini excavator specs group into four numbers that govern what you can actually do on a site. Transport width comes first because it decides whether the machine can reach the work at all: mini excavator width retracted is the number to check against your tightest access point. Mini digger size is often quoted as retracted width in marketing material, but always confirm whether the cab overhangs the tracks — on some small excavator size machines the cab is wider than the retracted undercarriage, making the cab the limiting dimension through a tight entry.

Mini excavator reach — the horizontal distance from the slew centre to the bucket pin at ground level — is the second critical number. A 1 t machine typically reaches 3.5 to 4 m at ground level; a 3.5 t machine extends to 5 to 5.5 m. Mini excavator capacity (bucket struck capacity) runs from about 20 to 40 litres in the 1 t band up to 80 to 130 litres in the 3.5 t class. These three numbers — width, reach, capacity — define the machine's work envelope more precisely than operating weight alone. Mini ex sizes, mini x sizes, and small mini x used as search terms almost always describe buyers trying to cross-reference these numbers across brands; our product pages list all four dimensions in a single table for each model.

One less-obvious spec is tail swing. A zero-tail-swing or reduced-tail-swing machine keeps the counterweight inside the track footprint when it slews, which matters enormously on narrow or walled sites. Most machines in the micro and 1 t band are designed this way by default; from 2 t upward you see both ZTS and conventional-swing variants in the same weight class. Mini excavator frozen ground performance and work in compacted soils depends more on breakout force and hydraulic pressure than operating weight class, though heavier machines typically carry higher-rated hydraulic circuits. Check the spec sheet for breakout force at the bucket pin, not just the machine weight.

Most mini excavators ship as open-cab machines with a ROPS frame and a canopy, but a mini excavator with cab — an enclosed mini excavator cab with glazed panels, a door, and a heater — is available from most makers from about the 1.5 t class upward. For contractors who work year-round in cold or wet climates, the cab option is worth specifying: operator comfort directly affects productivity on long shifts. A few micro-class machines offer cab kits, but enclosed cabs add weight and width, so verify that the transport dimensions still clear your access after the cab is fitted.

The vast majority of mini excavators run on rubber tracks — steel tracks appear mostly on larger midi machines working rocky ground where rubber shreds too quickly. Mini rubber tracks on a 1 to 3.5 t machine are low-ground-pressure, surface-friendly, and quiet enough for residential sites. They wear faster on sharp aggregate or concrete rubble, so check track thickness on any used machine you are considering. A small tracked excavator or compact track hoe both describe the same machine type: a tracked, rotating-superstructure digging unit under about 6 t.

A mini excavator wheel variant — also searched as a wheeled mini excavator for sale — is a genuine alternative if most of your work is road- or yard-based. Wheeled compact excavators travel between nearby jobs on hard surfaces under their own power, without needing a trailer for short moves, and put no wear on rubber tracks. They sacrifice some stability on uneven ground compared to a tracked equivalent, and most makers concentrate wheeled options in the 2 to 4 t band. A 360 mini digger label is sometimes applied to conventional tracked machines to distinguish full 360-degree slew machines from backhoe-style units with limited swing arc. Confirm the swing is truly unrestricted before calling a machine a full-rotation unit — the tail swing radius still matters for site access even on a 360-degree machine.

Buyers researching specific models often search by model code rather than weight, so here is how the most-searched codes map to the weight bands above. This is a reference guide, not a brand endorsement — we manufacture and export our own range rather than reselling these machines.

Micro and 1 t band (under 1.5 t): Bobcat's E10 mini excavator and E10 excavator sit at about 1 t; the e10 compact excavator label applies to the same machine. Cat's 300.9 and 300.9 d are under 1 t; the 301.4 c is about 1.5 t. Kubota's K008 excavator and KX008 sit under 1 t; the KX 71 and kx71 excavator are slightly larger. The EZ17 excavator (Yanmar) is about 1.7 t. Bobcat's 17d mini excavator and 17g compact excavator sit around 1.6 to 1.7 t; the 17g mini excavator for sale and 17g excavator price are common search queries in this band. Case's CX17C is a similar weight. Kobelco's SK17SR is a 1.7 t swing-boom model popular in tight-access markets.

1.5 to 2.5 t band: Bobcat's E20 mini excavator, E20 compact excavator, and E26 mini excavator sit at roughly 2 and 2.6 t; searches for e20 excavator for sale and e26 excavator for sale are common. John Deere's 17g mini excavator is near 1.7 t and the 26g compact excavator or 26g mini excavator is about 2.6 t; 26g excavator price searches reflect strong demand in this sub-band. Cat's 301.7 cr, 301.7 d, 301.8, 301.8 c, and 302 mini excavator series span 1.7 to 2 t. Case CX26C and CX27B excavator for sale are around 2.6 to 2.7 t. Doosan/Develon DX27Z is a 2.7 t zero-tail-swing model. Sany's SY26U is at 2.6 t. The 18z 1 compact excavator (Bobcat 18Z-1) is about 1.8 t.

2.5 to 4 t band: Bobcat E32 excavator, E32 mini excavator, E35 mini excavator, E35 compact excavator, and E42 mini excavator map to roughly 3.2 to 4.2 t; searches for e35 excavator for sale, e35 mini excavator for sale, and e35i mini excavator cluster here. Cat's 302.7 cr, 302.7 d, 303 cr, 303.5 cr, 303.5 e, 303.5 e2 cr, 304.5 mini excavator, and 305.5 e span 2.7 to 5.5 t. John Deere's 35g mini excavator, 30g mini excavator, and 27d excavator sit at 3.5, 3, and 2.7 t respectively; 35g excavator for sale, 35g excavator price, and jd 35g mini excavator for sale are common purchase searches. Case CX36B and CX37C are around 3.6 to 3.7 t. Doosan DX35Z and DX35Z 7 are 3.5 t zero-tail-swing models. XCMG's XE35U excavator and XE35U sit at 3.5 t. The best 3 ton excavator and best 3.5 ton excavator shortlists pull heavily from this model family range.

4 to 6 t band: Bobcat E45 mini excavator, E50 mini excavator, E55 mini excavator, and E60 mini excavator run from 4.5 to 6 t; e50 excavator for sale and e55 mini excavator are common search targets. Cat's 305 cr, 305e2, 305e2 cr, 306 mini excavator, and 308 cr span 5 to 8 t. John Deere's 50g mini excavator is about 5 t; the 60g compact excavator and 60g mini excavator is 6 t; 50g excavator for sale and 50g excavator price are high-intent purchase queries. Case CX55B, CX57C, and CX60C are 5.5 to 6 t. XCMG XE55U mini excavator is 5.5 t. Hitachi's ZX55U is a popular 5.5 t zero-tail-swing model. The Bobcat E85 mini excavator and E85 compact excavator push toward 8.5 t — firmly midi territory. The best 5 ton mini excavator and best 8 ton excavator shortlists draw from this band.

Chinese-brand model codes follow different conventions: the XN08 mini excavator, XN10 mini excavator, XN12 excavator, XN16 mini excavator, XN18 mini excavator, and XN20 excavator are Xinno-branded machines sold mainly through export channels, where the numeric suffix roughly indicates engine power in kW rather than weight in tonnes. Buyers comparing these against our models should cross-reference operating weight, dig depth, and auxiliary hydraulic specs — not just model code suffixes.

The most common entry point for a first mini excavator purchase is a specific job: digging a small trench for drainage, a gas line, an irrigation run, or a fence post line. For most residential trench work — 300 to 600 mm wide, 600 to 1,200 mm deep, in normal soil — a 1 to 1.5 t machine is more than enough and far more trailer-friendly than a 3 t. The best way to dig a small trench in a garden or yard is usually a 1 to 1.5 t open-cab machine with a 300 mm bucket: narrow enough to keep spoil close, light enough to run on lawn without excessive track damage.

A small digging machine for garden work — sometimes called a mini digging machine or mini earth mover — does not need maximum dig depth or long reach. Garden trenching for drainage or planting typically stays under 600 mm deep and 400 mm wide. The small excavation machine that fits this job is a 1 t or 1.5 t machine with a 200 to 300 mm bucket and rubber tracks to protect turf. For larger garden earthworks — retaining walls, ponds, significant re-grading — move up to the 2 t band where bucket capacity cuts cycle times meaningfully. A small earth auger attachment on a 1 to 2 t machine is the quickest tool for post holes and tree pit preparation in these same environments, and most 1.5 t machines have auxiliary hydraulics to run one.

A chain trencher is faster on a straight run in soft soil but cannot change direction, vary depth easily, or work in rock. A small trench digging machine based on a mini excavator is slower but far more flexible: it cuts the trench, lifts out the material, and helps backfill, all with one machine. If your trench has bends, obstacles, or variable depth, the mini excavator wins every time. Small digging equipment and small excavation equipment rental markets in most urban areas stock 1 to 3 t machines as the everyday workhorse for exactly these jobs. Small track hoes for sale and compact excavator sales in this weight band are the highest-volume segment of the new and used compact equipment market.

Two numbers move with the size band and decide whether the machine ever reaches the work: transport width and operating weight. Width sets what gate or alley the digger clears; weight sets what trailer and tow vehicle you legally need.

A common mistake is buying up a band for a little extra dig force and then discovering the machine no longer fits the access it was bought for, or no longer trailers behind the truck you own. Before you settle on a size, measure your tightest access point and confirm your trailer rating against the operating weight. If you also want to compare a digger against a backhoe layout for the same work, our note on the backhoe loader covers where each one earns its place.

Strip the whole decision down to a short list. For most buyers it sorts like this:

• Indoor, behind-gate, basement work: micro, under 1.2 ton.
• Tight access plus open dirt, towed by a pickup: 1 to 2 ton.
• General utility, landscaping, footings — your daily machine: 2 to 3.5 ton.
• Deeper trenches, heavier volume, dedicated trailer: 5 ton and up.

Find the heaviest line that describes your normal week, buy that band, and rent for anything heavier. That single rule keeps more buyers out of trouble than any spec comparison.