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Cat 325 vs Cat 330

The Cat 330 is the heavier machine, at 31.4 t against 26.4 t, and the Cat 330 has more power (193.8 kW against 128.5 kW).

The Cat 325 is ahead on: dumps higher, turns tighter, narrower to transport. The Cat 330 is ahead on: more power, digs deeper, reaches further, bigger bucket or body, more digging or pushing force, more hydraulic flow, bigger fuel tank, lower to transport.

Below, every figure both makers publish sits side by side, with the Cat 325 and the Cat 330 drawn to the same scale from their dimension drawings.

  1. Cat · excavator

    Cat 325

    Full specsPDF

  2. Cat · excavator

    Cat 330

    Full specsPDF

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At a glance

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

FigureCat 325Cat 330
Operating weight26,400 kg31,400 kg
Net powerHigher is better128.5 kW193.8 kW+51%
Max digging depthHigher is better6.7 m7.25 m+8%
Max reach at ground levelHigher is better9.78 m10.69 m+9%
Max dumping heightHigher is better7.9 m+14%6.94 m
Bucket capacityHigher is better1.19 m³1.8 m³+51%
Bucket digging forceHigher is better150 kN179 kN+19%
Pump flowHigher is better429 L/min560 L/min+31%
Fuel tankHigher is better313 L474 L+51%
Tail swing radiusLower is better1.81 m+42%3.13 m
Overall widthLower is better2.98 m+12%3.39 m
Overall height (to top of cab)Lower is better3.08 m3.06 m+1%
Overall length8.89 m10.42 m

All specifications

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

Dimensions

Overall height (to top of cab)3.08 m3.06 m
Handrail height3.19 m3.06 m
Shipping height (without OPG)3.21 mNot published
Overall height (to top of boom)3.2 mNot published
Overall length8.89 m10.42 m
Upperframe width2.99 mNot published
Tail swing radius1.81 m3.13 m
Ground clearance, counterweight1.02 m1.12 m
Ground clearance (minimum)0.44 m0.49 m
Track length on ground3.65 mlength to centre of rollers3.99 m
Track length4.46 m4.86 m
Track gauge2.38 m2.59 m
Overall width2.98 m3.39 m
Shoe width0.6 m0.8 m

Performance

Max digging depth6.7 m7.25 m
Max reach at ground level9.78 m10.69 m
Max digging height10.97 m10 m
Max dumping height7.9 m6.94 m
Min loading height2.98 m2.29 m
Max depth cut for 2,440 mm level bottom6.52 m7.09 m
Max vertical wall digging depth4.88 m5.79 m
Min front swing radius2.28 mNot published
Bucket capacity1.19 m³HD bucket1.8 m³HD bucket
Bucket digging force150 kNISO; 163 kN with Auto Dig Boost179 kN
Arm digging force106 kN126 kN
Swing speed11.12 rpm11.5 r/min
Max swing torque82 kN·m110 kN·m
Travel speed (high)5.7 km/hmaximum travel speedNot published
Max drawbar pull201 kNNot published
Gradeability35°/70%Not published

Weight

Operating weight26,400 kg31,400 kg
Operating weight (8,300 kg counterweight)27,600 kgNot published

Engine

Engine modelCat C4.4Cat C7.1
EmissionsEmits equivalent to U.S. EPA Tier 3 and EU Stage IIIAEmits equivalent to U.S. EPA Tier 3 and EU Stage IIIA
Net power128.5 kW (172 hp)ISO 9249, at 2,200 rpm193.8 kW (260 hp)ISO 9249, at 2,000 rpm
Net power (DIN)175 hp (metric)ISO 9249 (DIN)263 hp (metric)ISO 9249 (DIN)
Gross power129.4 kW (174 hp)ISO 14396195 kW (261 hp)ISO 14396
Gross power (DIN)176 hp (metric)ISO 14396 (DIN)265 hp (metric)ISO 14396 (DIN)
Bore105 mm105 mm
Stroke127 mm135 mm
Displacement4.4 L7 L
Biodiesel capabilityUp to B20Up to B20

Hydraulics

Pump flow429 L/min560 L/minMain system, maximum flow
Max pressure35 000 kPaequipment, normal35 000 kPaEquipment
Max pressure, equipment (heavy lift / Auto Dig Boost)38 000 kPaNot published
Max pressure, travel35 000 kPa35 000 kPa
Max pressure, swing27 500 kPa29 800 kPa
Auxiliary pump flow (optional)51 L/minat 14 000 kPa maxNot published
Max pressure, equipment (lift mode)Not published38 000 kPa

Service capacities

Fuel tank313 L474 L
Cooling system24 L25 L
Engine oil, with filter15 LNot published
Swing drive5.5 LNot published
Final drive (each)4.5 L5.5 L
Hydraulic system, with tank230 L310 L
Hydraulic tank111 Lincluding suction pipe147 L
Engine oilNot published25 L
Swing drive (each)Not published10 L

Service intervals

Engine oil and filter500 hoursCat's schedule for the C4.4 engine1,000 hours
Fuel filters1,000 hours1,000 hours
Swing drive oil1,000 hoursFirst change at 500 h1,000 hoursFirst change at 500 h
Final drive oil2,000 hoursEach side; first change at 500 h2,000 hoursEach side; first change at 500 h
Hydraulic return filter3,000 hours3,000 hours
Hydraulic oil6,000 hours6,000 hours
Coolant12,000 hours12,000 hours
Boom and stick linkage grease500 hoursDaily for the first 50 h500 hoursDaily for the first 50 h
Bucket linkage grease100 hoursDaily for the first 50 h100 hoursDaily for the first 50 h

Sources: Cat 325 (07H) Hydraulic Excavator Technical Specifications AEXQ4237-00 (10-2025), Tier 3 build, linked from cat.com en_AU 325 page · Cat 330 Hydraulic Excavator (Tier 3) brochure AEXQ2461-05 (2024, build 07F)

Drawn to scale

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

0 m1 m2 m3 m4 m5 m6 m7 m8 m9 m10 m
Cat 325Cat 330Same scale, front edges and ground lined up.

Cat 325 vs Cat 330: questions

Which is bigger, the Cat 325 or Cat 330?

By operating weight the Cat 330 is the biggest at 31.4 t, then the Cat 325 at 26.4 t.

Which has more power, the Cat 325 or Cat 330?

The Cat 330: Cat 325 128.5 kW (172 hp), Cat 330 193.8 kW (260 hp) (net power), a 51% difference.

Which digs deeper, the Cat 325 or Cat 330?

The Cat 330: Cat 325 6.7 m, Cat 330 7.25 m (max digging depth), a 8% difference.

Which reaches further, the Cat 325 or Cat 330?

The Cat 330: Cat 325 9.78 m, Cat 330 10.69 m (max reach at ground level), a 9% difference.

Which has the bigger bucket, the Cat 325 or Cat 330?

The Cat 330: Cat 325 1.19 m³, Cat 330 1.8 m³ (bucket capacity), a 51% difference.

Which has the bigger fuel tank, the Cat 325 or Cat 330?

The Cat 330: Cat 325 313 L, Cat 330 474 L (fuel tank), a 51% difference.

Which turns tighter, the Cat 325 or Cat 330?

The Cat 325: Cat 325 1.81 m, Cat 330 3.13 m (tail swing radius), a 42% difference.

Which is narrower to transport, the Cat 325 or Cat 330?

The Cat 325: Cat 325 2.98 m, Cat 330 3.39 m (overall width), a 12% 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.

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