Wheeled excavators · Operating weight by blade and outrigger configuration, boom and stick working ranges, travel speed and drawbar pull, hydraulic pressures and flows, swing, sound and vibration
A wheeled excavator is a hydraulic excavator whose rotating upper structure, boom, stick and bucket sit on a rubber-tyred chassis with steering axles, a dozer blade and/or outriggers, so it can travel on roads between jobs and dig, load and handle material in urban, utility and road work. Ask three things first: its operating weight and stability in the blade and outrigger configuration you need, the digging depth and reach with your boom and stick, and its travel speed, hydraulic capacity and operator environment.
Rubber-tyred hydraulic excavators with dozer blades and/or outriggers, including compact and mid-size models. Crawler excavators, backhoe loaders, material handlers, excavator parts sold alone and attachments are outside this page.
01
Caterpillar's M318 wheeled excavator technical specifications give operating weights from 17,100 kg to 19,950 kg depending on configuration, for example 17,950 kg with a variable adjustable (VA) boom and rear blade only, 19,000 kg with blade and outriggers and 19,200 kg with front and rear outriggers; these include full fuel, operator, a 610 kg bucket, dual tyres, a medium stick and a 3,700 kg counterweight. [1]
With the 5,205 mm VA boom and 2,200, 2,500 or 2,900 mm sticks, maximum digging depth is 5,600, 5,890 or 6,290 mm and maximum reach at ground line 8,960, 9,210 or 9,610 mm; with the 5,100 mm one-piece boom the digging depth is 5,280–5,980 mm. ISO bucket digging force is 119 kN and stick force 81 to 67 kN, falling as the stick lengthens. Width is 2,540 mm with the blade or outriggers raised and 3,820 mm with outriggers on the ground; tail swing radius is 2,350 mm. [1]
Liebherr's A 918 Litronic, a Generation 8 wheeled excavator, lists an operating weight of 17,700–19,500 kg, 125 kW (170 hp) engine output to ISO 9249 under emission Stage V, backhoe bucket capacities of 0.17–1.05 m³ and grab capacities of 0.14–0.60 m³. Volvo's EW160E lists an operating weight of 35,714–40,124 lb, 156 hp gross power at 1,900 rpm, a 1.02 yd³ bucket, 28,325 lbf breakout force (ISO, boost), maximum digging depth of 18 ft 8 in and reach of 30 ft 6 in with a two-piece boom, and maximum lifting capacity of 13,668 lb at 14.8 ft reach and 9.8 ft height. [2] [3]
Editorial calculation: the EW160E's figures convert to about 16.2–18.2 t operating weight, 116 kW, 0.78 m³ and 126 kN breakout force (lb × 0.4536; hp × 0.7457; yd³ × 0.7646; lbf × 4.448 N), placing it just below the 17.1–19.95 t Cat M318 and 17.7–19.5 t Liebherr A 918 in the same class. [3] [1] [2]
Editorial calculation: 128 kW net power on 17,100–19,950 kg is about 6.4–7.5 kW per tonne; quote power-to-weight only with the configuration stated. Going from the 2,200 mm to the 2,900 mm stick adds 690 mm of digging depth but costs 14 kN of stick force (81 → 67 kN). [1]
Give the supplier the work (trenching, utilities, loading, demolition, road work), required digging depth and reach, lift loads at stated radii, blade and outrigger configuration, boom type and stick length, bucket and quick coupler, auxiliary hydraulics for attachments, tyres, road travel requirements and registration, emission standard, operator environment and quantities.
02
The M318 has a Cat C4.4 engine with 129 kW gross (ISO 14396) and 128 kW net (ISO 9249) power at 2,200 rpm, travels at 10 or 35 km/h (creeper 5.5 or 15 km/h) with 104 kN drawbar pull and 65% gradeability, turns in 6,550 mm (outside of tyre) with 35° steering and ±8.5° axle oscillation, and has 360 mm ground clearance. [1]
Implement circuit pressure is 35,000 kPa normal and 37,000 kPa in heavy lift, with 254 L/min maximum implement flow; the auxiliary circuits give 35,000 kPa at 250 L/min (high pressure) and 17,000 kPa at 55 L/min (medium pressure); the swing turns at up to 9.4 rpm with 47.1 kN·m of torque. Fuel tank capacity is 350 L. [1]
Volvo lists a maximum travel speed of 22 mph (about 35 km/h) for the EW160E, matching the 35 km/h top travel speed of the M318, and offers a hydraulically elevated cab that lifts the operator by five metres for waste-handling work. [3] [1]
Operator sound is 69 dB(A) and exterior sound power 99 dB(A) to 2000/14/EC, hand/arm vibration below 2.5 m/s² and whole-body below 0.5 m/s²; the cab meets ISO 12117-2 ROPS, with optional guards to ISO 10262 Level II. [1]
Editorial calculation: 35,000 kPa is 35 MPa (350 bar). Check that attachments' required pressure and flow match the auxiliary circuit, for example a tool needing 60 L/min would exceed the 55 L/min medium-pressure circuit. [1]
03
Directive 2000/14/EC lists hydraulic or rope-operated excavators below 500 kW among the equipment subject to permissible sound power levels in its Article 12. For excavators, builders' hoists, construction winches and motor hoes it sets 96 dB (Stage I, from 3 January 2002) and 93 dB (Stage II, from 3 January 2006) for net installed power P ≤ 15 kW, and 83 + 11 lg P and 80 + 11 lg P respectively for P > 15 kW, in dB re 1 pW, with the result rounded to the nearest integer. [4]
Editorial calculation: with the Stage II formula, Caterpillar's 128 kW net M318 has a limit of 80 + 11 × lg 128 ≈ 103.2, rounded to 103 dB; its published exterior sound power of 99 dB(A) to 2000/14/EC is 4 dB below that. Liebherr's 125 kW A 918 and Volvo’s EW160E at about 116 kW gross (156 hp) also round to 103 dB. [4] [1] [2] [3]
Editorial note: each 3 dB is a doubling of sound power, so a 4 dB margin means the M318 emits about 40 % of the sound power the limit allows (10^(−0.4) ≈ 0.40). Ask each supplier for the guaranteed sound power level marked on the machine and its EU or UK declaration of conformity, and compare it with your site's own noise conditions, which may be tighter than the directive.
| Machine (source) | Net power used | Stage II limit (editorial calculation) | Published exterior sound power |
|---|---|---|---|
| Cat M318 [1] | 128 kW (ISO 9249) | 103 dB [4] | 99 dB(A) [1] |
| Liebherr A 918 [2] | 125 kW (ISO 9249) | 103 dB [4] | Ask the supplier |
| Volvo EW160E [3] | about 116 kW gross (156 hp); net power not in the reviewed page | 103 dB [4] | Ask the supplier |
04
Suppliers linked to this page list wheeled excavators; each card links to the page reviewed.
Listings range from 6-tonne wheel excavators to larger wheeled machines, from construction machinery makers and multi-brand distributors.
05
This is a functional reference built from the sources cited; it is not one maker's design.
| Part | Role | Fix in the order |
|---|---|---|
| Upper structure and counterweight | Swing and stability. [1] | Counterweight mass. |
| Boom and stick | Reach and depth. [1] | VA or one-piece; stick length. |
| Undercarriage | Travel and support. [1] | Blade, outriggers, tyres. |
| Hydraulic system | Digging and attachments. [1] | Pressure and flow. |
| Engine | Power and emissions. [1] | Net power; standard. |
| Cab | Operator safety and comfort. [1] | ROPS/FOPS; sound. |
06
A wheeled excavator quotation needs values for your work. The table explains each field, gives published values where a reviewed source states them, and says what to obtain from the supplier.
| Field | What it means and published values | Ask the supplier for |
|---|---|---|
| Operating weight (ton) | 17.1–19.95 t by configuration in one model. [1] Also 17.7–19.5 t; about 16.2–18.2 t. [2] [3] | Weight in your configuration. |
| Engine power (kW) | 128 kW net (ISO 9249). [1] Also 125 kW (ISO 9249); 156 hp gross. [2] [3] | Net power and standard. |
| Bucket capacity (m³) | 0.91 m³ standard bucket in one model. [1] E.g. 0.17–1.05 m³ backhoe buckets. [2] | Bucket size and density. |
| Maximum digging depth (m) | 5.6–6.29 m (VA boom) in one model. [1] | Depth with your stick. |
| Travel speed (km/h) | 35 km/h. [1] | Speeds and creep. |
| Operating pressure (MPa) | 35 MPa; 37 MPa heavy lift. [1] | Pressures. |
| Swing speed (r/min) | 9.4 rpm. [1] | Swing speed and torque. |
| Max digging reach (m) | 8.96–9.61 m at ground line (VA boom). [1] | Reach. |
| Tire specification | 10.00-20 dual standard in one model. [1] | Tyre options. |
| Minimum ground clearance (mm) | 360 mm. [1] | Clearance. |
| Fuel tank capacity (L) | 350 L. [1] | Capacity. |
| Noise level (LPA) (dB(A)) | 69 dB(A) operator to 2000/14/EC. [1] | Operator and exterior. |
07
Paste it into your enquiry below or into an email to a maker, then replace every bracket.
Work: [task; depth; reach; lift loads] Configuration: [boom; stick; blade; outriggers] Hydraulics: [attachments; pressure; flow] Travel: [road speed; tyres; registration] Cab: [ROPS/FOPS; sound] Supply: [emissions; service; quantity]
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Cat's M318 ranges from 17,100 to 19,950 kg depending on boom, blade and outrigger configuration. [1]
The M318 travels at up to 35 km/h, with a 10 km/h low gear. [1]
Yes; on the M318 VA boom, depth rises from 5,600 to 6,290 mm as the stick goes from 2,200 to 2,900 mm, while stick force falls. [1]
Published 17–20 t class machines list about 16.2–19.95 t operating weight depending on blade, outriggers and boom. [1] [2] [3]
Directive 2000/14/EC sets 80 + 11 lg P dB for excavators above 15 kW (Stage II), about 103 dB for a 128 kW machine. [4]
Sources checked 2026-10-12. Caterpillar, Liebherr and Volvo CE publish specifications for their own wheeled excavators; values for your machine must come from the supplier's specification in the same configuration. Directive 2000/14/EC sets the sound power limits that machines sold in the EU must meet.
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