Two 8-ton class machines, two different answers to the same tight urban job — the right pick depends on what you dig most.
A contractor in a city suburb once told me he bought the wrong 8-ton excavator twice before he bought the right one. The first machine was powerful but too wide for the lane closures his road jobs needed, so it sat on the trailer while a smaller machine did the work. The second was nimble enough for the street but slow to cycle, and on a utility job with a tight deadline it cost him more in lost days than the price difference between the two machines. The third machine was the one he should have bought first.
That story is why the 8- to 9-ton class is worth comparing carefully. Machines in this weight band are the largest that still feel at home on a city street, and the smallest that can do serious utility and road work without a bigger machine on standby. The Takeuchi TB290 and the Yanmar ViO80 are two of the most common choices in that class, and they solve the same problem in different ways.
Quick Answer: For most urban and road work, the Takeuchi TB290 wins on digging power and cab space, while the Yanmar ViO80 wins on true zero tail swing, tight-quarters manners and a quieter, more refined feel. If your jobs are mostly trenching and loading trucks in open lanes, buy the TB290. If your jobs are mostly against walls, fences and live traffic where the tail swing decides everything, buy the ViO80. Both are reliable, well-supported machines, and the wrong choice is usually the one bought without a demo on your own kind of job.
1. The Two Machines at a Glance
Both machines sit in the same weight class, both run a Yanmar diesel, and both are aimed squarely at contractors who work in towns. The differences show up in the details: how the tail swings, how the cab feels after eight hours, and how the hydraulics behave when the bucket is full of wet clay.
The TB290 is the bigger-feeling machine of the two. It carries an operating weight of around 8.8 tonnes, a Yanmar engine of roughly 52 kW, and a maximum dig depth of about 4.6 metres. Takeuchi builds its machines with a reputation for strong hydraulics and simple, durable construction, and the TB290 follows that pattern. It feels like a machine that expects to be worked hard.
The ViO80 is the lighter, tighter machine. Its operating weight is around 8.3 tonnes, its Yanmar engine makes roughly 55 kW, and its maximum dig depth is about 4.3 metres. Yanmar's signature feature is the true zero tail swing: the counterweight stays inside the track width through the full rotation, so the machine can spin in a lane without the tail ever crossing the line. On a street job, that is not a minor feature.
| Specification | Takeuchi TB290 | Yanmar ViO80 |
|---|---|---|
| Operating weight | ~8,800 kg | ~8,300 kg |
| Engine | Yanmar 4TNV98C, ~52 kW | Yanmar 4TNV98C, ~55 kW |
| Maximum dig depth | ~4,580 mm | ~4,270 mm |
| Maximum reach at ground level | ~7,600 mm | ~7,300 mm |
| Tail swing | Reduced tail swing | True zero tail swing |
| Bucket digging force | ~65 kN | ~61 kN |
| Transport width | ~2,320 mm | ~2,270 mm |
Figures above are typical manufacturer-published values for standard configurations and can vary with cab, counterweight and attachment options, so confirm the exact numbers on the dealer spec sheet for the machine you are buying. The pattern matters more than any single number: the TB290 digs a little deeper and pulls a little harder, while the ViO80 turns a little tighter and fits a little narrower.
Best for: the TB290
- Trenching and utility work — deeper dig and stronger bucket force pay off on every metre of trench.
- Truck loading — the extra reach and lift height make loading over the side of a truck easier.
- Operators who like a roomy cab — the TB290 cab is one of the larger ones in the class.
Best for: the ViO80
- Work against walls and fences — true zero tail swing means the counterweight never crosses the line.
- Live traffic and pedestrians — the machine can rotate fully inside its own footprint.
- Crews who value refinement — the ViO80 is notably smooth and quiet for the class.
2. Digging Power and Hydraulics
On paper the TB290 has the edge: more bucket digging force, deeper dig, and a hydraulic system that Takeuchi tunes for breakout rather than smoothness. In wet clay and compacted road base that shows up as faster cycles, because the bucket fills in one pass instead of needing a second scrape.
The ViO80 is not weak, and calling it weak would be unfair. Its hydraulics are tuned for control, and the difference is most obvious in fine work: grading to a line, working around a live service, or placing a pipe without dragging the trench wall. The ViO80 gives the operator a more predictable feel at low speed, which is exactly what a tight urban job rewards.
Both machines run load-sensing hydraulics with two-speed travel, and both will lift a reasonable load over the side. The TB290 lifts a little more at full reach, which matters when you are loading trucks all day, while the ViO80 holds its load more steadily when the machine is slewing, which matters when the swing radius is hemmed in by a barrier. Neither machine will embarrass you on power. The choice is about where you want the power to go.
3. Tail Swing, Size and Getting Around Town
This is the section that decides most purchases in this class, and it is also the section buyers skip when they shop on price alone. Tail swing is not a specification curiosity. On a street job it decides whether you can work in one lane or need two, whether the counterweight clears the hoarding, and whether the banksman has to stop traffic every time the machine turns.
The ViO80's true zero tail swing is genuine, and it is the machine's strongest selling point. The counterweight stays inside the 2,270 mm track width through the whole rotation, so the operator can spin the upper structure without checking the tail. For a crew working in a single lane with traffic on one side and a wall on the other, that is the difference between a smooth day and a stressful one.
The TB290 uses a reduced tail swing design rather than a true zero swing, and its tail does overhang the tracks by a small amount. In practice the overhang is modest, and on open sites it never matters, but on a job against a wall it means the operator has to think about the tail on every rotation. Takeuchi compensates with a wider, more stable stance and a cab that feels planted, so the TB290 is the more confident machine on uneven ground and slopes. For more on working machines on gradients, see our guide to working on slopes with an excavator.
Transport is close enough to call a draw. Both machines fit on a standard plant trailer behind a suitable truck, both travel at similar road speeds on their tracks, and both need the same care with ramps and tie-downs. The ViO80's slightly narrower width helps on tight access roads, but the difference is 50 mm, and no job is won or lost on 50 mm.
4. Cab Comfort and the Operator's Day
An operator spends eight to ten hours in the cab, so comfort is a running cost, not a luxury. The TB290 cab is roomy, with good legroom and a wide door, and the layout is simple: big levers, clear gauges, and controls that a new operator learns in a morning. Visibility is good to the front and the sides, and the air conditioning copes with a hot day.
The ViO80 cab is smaller but more refined. The controls are lighter, the engine note is quieter, and the whole machine feels less tiring at the end of a long day. Yanmar's cab is well sealed against dust, which matters on dry road jobs, and the seat and armrests adjust further than the TB290's. Operators who switch between the two often describe the ViO80 as the nicer place to sit and the TB290 as the easier machine to learn.
Service access is good on both machines, and both are designed for a daily check that takes minutes rather than half an hour. The TB290 opens up well around the engine bay, with the battery and filters easy to reach, while the ViO80 groups its daily service points behind wide-opening covers. Either way, the pre-start inspection routine is the same, and the machine that gets checked every morning is the machine that stays earning.
5. Running Costs, Reliability and Resale
Both machines share a Yanmar engine family, which keeps the reliability story simple: these are proven, well-understood diesels with parts available almost anywhere. Fuel consumption is close, with the ViO80's slightly higher output offset by its lighter weight, and most owners report similar diesel bills across a working week.
Where the costs differ is in the details. Takeuchi's undercarriage and hydraulics have a reputation for lasting well under hard use, and the TB290's simpler construction means fewer expensive surprises as the hours climb. Yanmar's refinement comes with more electronics and more sophisticated hydraulics, which are fine when maintained but cost more when they eventually need attention. Neither machine is expensive to own by the standards of the class, and both hold their value well.
Resale is a genuine tie. Both brands have strong dealer networks and strong demand on the used market, and a clean, well-maintained example of either machine sells quickly. The advice is the same for both: keep the service history complete, keep the undercarriage in good order, and keep the cab clean. A machine with a folder full of service stamps is worth more than the same machine without one, whatever the badge on the side.
For a sense of what these machines cost to own and run over a year, the running-cost thinking in our SANY SY215C review and our Hitachi ZX130 review applies at this size too, even though those are larger machines.
6. How to Choose Between Them
The honest answer is that most buyers will be happy with either machine, and the buyers who regret their choice usually skipped the same step: they bought without trying the machine on their own work. A demo on a real job, not a dealer yard, is worth more than any comparison table, including this one.
Step 1: List your last ten jobs
Write down the last ten jobs the machine will do and mark how many were against a wall, in a single lane, or beside live traffic. If more than half were tight-quarters work, the ViO80's zero tail swing is worth real money. If most were open trenching and truck loading, the TB290's digging power matters more.
Step 2: Demo both on the same job
Ask each dealer for a demo on the same site, doing the same task, with the same operator. Time a full cycle: dig, swing, load, return. The numbers will tell you more in an hour than a week of reading brochures.
Step 3: Check the dealer before the machine
Ask how far the service van travels, how quickly parts arrive, and whether a loan machine is available when yours is in the workshop. A great machine with a slow dealer is a worse buy than a good machine with a dealer who answers the phone.
Step 4: Price the whole ownership, not the invoice
Compare fuel, service intervals, track and pin wear, and the resale value after three years. The cheaper machine on the invoice is not always the cheaper machine to own.
7. Common Mistakes When Buying in This Class
- Buying on price alone. A few thousand saved on the invoice disappears fast if the machine is wrong for your jobs.
- Ignoring tail swing. The overhang that never matters in the yard matters every hour on a street job.
- Skipping the demo. A machine that feels fine in the yard can feel very different in a trench.
- Forgetting the trailer. Check the loaded weight and width against your truck and trailer before you sign, not after.
- Underestimating service access. A machine that is hard to service gets serviced late, and late service is where big bills start.
- Choosing the cab by the brochure. Sit in both cabs, adjust the seat, and work the controls before you decide.
The TB290 and the ViO80 are both good machines, and that is exactly what makes the choice hard. There is no bad answer here, only a better answer for your work. If your jobs are mostly open trenching, road building and truck loading, the TB290's extra digging power and roomier cab will earn their keep every day.
If your jobs are mostly tight urban sites, single-lane closures and work against walls and live traffic, the ViO80's true zero tail swing and refined feel will save you more time and stress than the TB290's extra reach ever could. Either way, demo both on your own job, check the dealer as carefully as the machine, and buy the one that fits the work you actually do. Browse the reviews and news sections for more machine comparisons, and the operator and project guides for the site work these machines spend their lives doing.
