Cat 730 vs Volvo A40G

The Volvo A40G is the heavier machine, at 30.7 t against 23.3 t, and the Volvo A40G has more power (347 kW against 274 kW).

The Cat 730 is ahead on: lower to transport. The Volvo A40G is ahead on: more power, more torque, dumps higher, bigger bucket or body, bigger fuel tank, faster, narrower to transport.

Below, every figure both makers publish sits side by side, with the Cat 730 and the Volvo A40G drawn to the same scale from their dimension drawings.

Cat · articulated dump truck
Cat 730
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Volvo · articulated dump truck
Volvo A40G
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At a glance

Bold is the machine ahead on each figure, with its lead.

Figure	Cat 730	Volvo A40G
Operating weight	23,300 kg	30,700 kg
Gross powerHigher is better	280 kW	350 kW+25%
Max torqueHigher is better	2,141 Nm	2,525 Nm+18%
Dump height (body raised)Higher is better	6.46 m	7.265 m+12%
Body capacity (SAE 2:1 heaped)Higher is better	17.6 m³	24 m³+36%
Fuel tankHigher is better	400 L	480 L+20%
Top speedHigher is better	55 km/h	57 km/h+4%
Overall widthLower is better	3.676 m	3.43 m+7%
Overall height (cab)Lower is better	3.498 m+3%	3.599 m
Overall length	10.445 m	11.263 m

All specifications

Every figure the makers publish. Search for one, or show only those that differ.

Differences only(87)

FigureCat 730 Volvo A40G

Dimensions

Overall length10.445 m11.263 m

Overall length with tailgate10.593 mNot published

Overall width3.676 m3.43 mOver body (rear view)

Overall height (cab)3.498 m3.599 m

Loading height2.956 m3.132 m

Dump height (body raised)6.46 m7.265 m

Ground clearance0.537 m0.553 mFront view, unloaded with 29.5R25

Ground clearance, body fully tipped0.549 mNot published

Front axle to machine front3.21 m3.1 m

Front axle to mid axle3.979 m4.518 m

Tandem axle spacing1.7 m1.94 m

Rear axle to body rear1.556 m1.706 m

Body length5.789 m5.844 m

Body length, inside5.432 mNot published

Width over tailgate2.984 mNot published

Body width2.902 mNot published

Track width2.275 m2.636 m

Width over tyres2.877 m3.403 m29.5R25

Width over fenders2.95 mNot published

Max laden width over tyre bulge2.95 mNot published

Front axle to hitchNot published1.277 m

Weight

Operating weight23,300 kgTotal, empty30,700 kg

Payload (nominal)28 tRated payload39,000 kg

Gross machine weight (loaded)51,300 kgTotal, loaded69,700 kg

Front axle load, empty14,060 kgNot published

Centre axle load, empty4,730 kgNot published

Rear axle load, empty4,510 kgNot published

Front axle load, loaded17,310 kgNot published

Centre axle load, loaded17,105 kgNot published

Rear axle load, loaded16,885 kgNot published

Operating weight, front axleNot published16,100 kgUnloaded

Operating weight, rear axlesNot published14,600 kgUnloaded

Body

Body capacity (SAE 2:1 heaped)17.6 m³24 m³Standard body

Body capacity (struck)13.9 m³18.4 m³Standard body

Body capacity with tailgate (SAE 2:1 heaped)18.8 m³Not published

Body capacity with tailgate (struck)14.6 m³Not published

Body plateHigh strength Brinell HB450 wear resistant steelNot published

Body plate thickness, front7 mmNot published

Body plate thickness, base13 mmNot published

Body plate thickness, sides11 mmNot published

Body raise time12 s12 s

Body lower time8 s10 s

Body capacity (SAE 2:1 heaped), overhung tailgateNot published24.7 m³

Tipping angleNot published70°

Body materialNot publishedHB450 steel; plates 8 mm front, 11 mm sides, 14 mm bottom, 16 mm chute

Engine

Engine modelCat C13AVolvo D13J

EmissionsBrazil MAR-1 (equivalent to U.S. EPA Tier 3 / EU Stage IIIA) or non-certified (equivalent to Tier 2 / Stage II)Two engine optionsEU Stage V

Gross power280 kW (375 hp)SAE J1995, at 1,800 rpm350 kW (476 hp)SAE J1995, at 1,900 rpm

Net power274 kW (367 hp)SAE J1349347 kW (472 hp)ISO 9249 / SAE J1349, at 1,900 rpm

Engine power276 kW (370 hp)ISO 14396Not published

Max torque2,141 NmGross, SAE J1995:2014, at 1,200 rpm2,525 NmGross, SAE J1995

Max torque (net)2,107 NmSAE J1349:2011, at 1,200 rpm2,500 NmISO 9249 / SAE J1349, at 1,050 rpm

Displacement12.5 L12.8 L

Bore x stroke130 mm x 157 mmNot published

No engine derating below3,810 mAltitudeNot published

CylindersNot published6In-line, V-ACT, VGT turbo

Transmission

TransmissionCat CX31 auto shift, 6F/1RVolvo PowerTronic PT 2529, fully automatic planetary, 9F/3R, torque converter 2.1:1 with lock-up

Top speed55 km/hForward 657 km/h9th gear forward

Reverse speed9 km/hReverse 118 km/h

DropboxNot publishedVolvo IL2 ATC, 100% longitudinal dog-clutch diff lock

AxlesNot publishedVolvo ARB H40, planetary hub reductions, 100% dog-clutch diff locks; 6x4 / 6x6 automatic

Steering

Steering angle45°Left/right from centre45°±45°, 3.4 steering-wheel turns lock to lock

SAE turning radius7.47 mNot published

Clearance radius8.075 mNot published

Inside radius3.879 m4.327 m

Aisle width5.332 mNot published

Lock to lock time4.75 s at 60 rpmNot published

Tyres

TyresSix 23.5R25 radial29.5R25 (option 875/65R25)

Service capacities

Fuel tank400 L480 L

Cooling system83 L44 L

Hydraulic system, with tank123 LHydraulic systemNot published

Engine oil, with filter38 LEngine crankcase51 LCrankcase

Final drives/differential125 LNot published

Output transfer gearbox24 LNot published

DEF / AdBlue tankNot published39 L

Brake cooling systemNot published188 L

Hydraulic tankNot published174 L

Service intervals

Engine oil and filter500 hours1,000 hours

Fuel filters500 hoursprimary and secondaryNot published

Transmission oil filter500 hoursNot published

Transmission oil1,000 hoursNot published

Output transfer gear oil1,000 hoursoil and filterNot published

Differential and final drive oil2,000 hoursfront, centre and rear axlesNot published

Hydraulic oil4,000 hoursNot published

Coolant12,000 hoursNot published

GreasingNot published250 hours

Performance

Turning radius (outer)Not published8.957 m

Approach angleNot published24°

Hydraulics

Max pressureNot published26 MPaSystem max working pressure

Sources: Cat 730 (05A) Articulated Truck Technical Specifications AEXQ3916 (12-2025), Afr-ME / Aus-NZ / Eurasia / Indonesia / Pacific Islands / S Am · Volvo A35G/A40G Stage V brochure 20057406-D (2021)

Drawn to scale

Side views measured off each maker's dimension drawing, front edges and ground lined up.

Cat 730Volvo A40GSame scale, front edges and ground lined up.

Cat 730 vs Volvo A40G: questions

Which is bigger, the Cat 730 or Volvo A40G?

By operating weight the Volvo A40G is the biggest at 30.7 t, then the Cat 730 at 23.3 t.

Which has more power, the Cat 730 or Volvo A40G?

The Volvo A40G: Cat 730 280 kW (375 hp), Volvo A40G 350 kW (476 hp) (gross power), a 25% difference.

Which has the bigger bucket, the Cat 730 or Volvo A40G?

The Volvo A40G: Cat 730 17.6 m³, Volvo A40G 24 m³ (body capacity (sae 2:1 heaped)), a 36% difference.

Which has the bigger fuel tank, the Cat 730 or Volvo A40G?

The Volvo A40G: Cat 730 400 L, Volvo A40G 480 L (fuel tank), a 20% difference.

Which is narrower to transport, the Cat 730 or Volvo A40G?

The Volvo A40G: Cat 730 3.676 m, Volvo A40G 3.43 m (overall width), a 7% difference.

Where do these figures come from?

Each model's own published spec sheet or brochure, linked under the table. Builds differ by market and year, so confirm the figures for a particular machine with its dealer.

Can I rent or buy these machines in the UAE?

Each model's page lists the ones for hire and for sale on EquipmentsFinder now, with typical prices in AED.