Hyundai R170W-7
Series: Hyundai Mobile Excavator
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Hyundai wheeled excavators R55W to R200W – the Robex range on wheels from Ulsan: R for Robex, the number as weight class, W for Wheeled, -3, -7 and -7A as generations, Cummins, Mitsubishi, Yanmar and Hyundai engines, 41 to 115 kW, 5.5 to 20.5 t
Hyundai's wheeled excavators are the wheeled versions of the Robex range with which Hyundai Heavy Industries of Ulsan has built excavators since the 1980s – at first with licensed technology, since the 1990s with its own designs that made the group one of the world's ten largest excavator makers. The type logic: R stands for Robex, the number gives the weight class in hundreds of kilograms – R55W about 5.5 t, R140W 14 t, R170W 17 t, R200W 20 t – W for Wheeled, and the suffixes -3, -7 and -7A for the generations of the 1990s and 2000s, -7A marking emission stage IIIA. The engines show the maker's path: Cummins B3.9 and B5.9 and Mitsubishi S6S in the -3 and -7 generations, Yanmar 4TNV94 in the small R55W, Hyundai's own D04FD in the younger models.
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The register lists 8 versions with 41 to 114.8 kW from four- and six-cylinders of 3,048 to 5,883 cm³ at 1,950 to 2,400 rpm and operating weights from 5,450 to 20,500 kg.
Hyundai wheeled excavators are common in Eastern Europe, Turkey and the Middle East, where the price advantage over Liebherr, Volvo and Caterpillar counts; in Germany they are represented through dealer networks and present as rental machines.
On used machines, operating hours, play in slew ring and boom bearings, the condition of tyres, oscillating axle, outriggers and blade, leak-free cylinders and swivel joint and parts supply, which runs through the Cummins and Mitsubishi networks for the engines and Hyundai for the machine, are what count.
Sources: Kennwerte der Modelle Hyundai Mobilbagger, Hyundai Construction Equipment Europe (Hersteller)
Technical data
Engine
| Engine model | S6S-DTcorrect |
|---|---|
| Power | 127.7 hp (86.5 kW)correct |
| Rated speed | 2,100 rpmcorrect |
| Speed at max. torque | 1,500 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 4,998.1 cm³correct |
| Aspiration | turbochargedcorrect |
| Coolant capacity | 30.3 lcorrect |
| Engine oil capacity | 16.7 lcorrect |
Dimensions and weights
| Wheelbase | 2,603correct |
|---|---|
| Ground clearance | 378correct |
| Unladen weight | 16,200 kgcorrect |
Drivetrain and chassis
| Gearbox type | hydrostatic transmissioncorrect |
|---|---|
| Forward gears | 2correct |
| Reverse gears | 2correct |
| Tyre size | 10-20-14PRcorrect |
Working data
| Pump flow | 336.1 l/mincorrect |
|---|---|
| Hydraulic oil capacity | 240.4 lcorrect |
| Hydraulic pressure | 323.4 barcorrect |
| Fuel tank capacity | 260.1 lcorrect |
Other data
| Cab height | 3,151.6correct |
|---|
More machines with this engine (S6S-DT, 8)
Where this model stands
Power-to-weight ratio: 5.3 kW/t (86 kW / 16.2 t)
Stronger than 34% of the excavators & compaction in the register — out of 1,666 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Hyundai R170W-7 have?
The Hyundai R170W-7 delivers 128 hp.
How much does the Hyundai R170W-7 weigh?
The unladen weight is 16,200 kg.
What engine does the Hyundai R170W-7 have?
6 cylinders, 4,998 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 22 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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Other models in this series
Sources: [1]
Excavator in 3D section
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