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The Cat 730C2, with a 17 m3 (23 yd3) 28 tonnes (31 tons) capacity, offers demonstrated reliability and durability, high performance and productivity, superior operator comfort and lower operating costs. Updating the successful 730C to include all axle enclosed wet brakes makes the 730C2 a more attractive proposition for our customers. Class leading levels of performance and operator comfort make for a productive machine all day long.

Cat Specs
Photos
Downloads

Weights

Rated Payload
31 ton (US)

Body Capacities

Heaped (SAE 2:1)
23 yd³
Struck
17.4 yd³
Tailgate Heaped SAE 2:1
24.6 yd³
Tailgate Struck
18.2 yd³

Engine

Net Power - ISO 14396
370 HP
Bore
5.1 in
Stroke
6.2 in
Note (1)
The power ratings apply at rated speed of 1,800 rpm when tested under the conditions for the specified standard.
Displacement
762.8 in³
Note (2)
The net power advertised is the power available at the flywheel when the engine is equipped with alternator, air cleaner, muffler and fan at minimum speed.
Note (3)
Net power when the fan is at maximum speed is 254 kW (341 hp) per the SAE reference conditions.
Note (4)
DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1. ISO 22241-1 requirements are met by many brands of DEF, in
Engine Model - U.S. EPA Tier 4 Final/EU Stage IV
Cat® C13 ACERT™
Net Power - SAE J1349
367 HP
Peak Engine Torque Net (SAE J1349)
1564 ft·lbf
Gross Power - SAE J1995
375 HP
Engine Model
Cat C13 ACERT
No Engine De-rating Below
12500 ft
Peak Engine Torque Speed
1200 r/min
Emissions
The reference to Tier 4 Final/Stage IV includes U.S. EPA Tier 4 Final, EU Stage IV, Japan 2014 (Tier 4 Final), as well as Korea Tier 4 Final emission standards.
Peak Engine Torque Gross (SAE J1995)
1579 ft·lbf

Transmission

Forward - 1
5 mile/h
Forward - 2
9 mile/h
Forward - 5
29 mile/h
Reverse - 1
6 mile/h
Forward - 6
34 mile/h
Forward - 4
21 mile/h
Forward - 3
14 mile/h

Service Refill Capacities

Final Drives/Differential
33 gal (US)
Output Transfer Gear Box
6.3 gal (US)
Cooling System
21.9 gal (US)
Transmission
12.4 gal (US)
DEF Tank
5.2 gal (US)
Hydraulic System
29.1 gal (US)
Fuel Tank
108.8 gal (US)
Engine Crankcase
10 gal (US)

Sound Levels

Interior Cab
76 dB(A)
Note (1)
The operator sound exposure Leq (equivalent sound pressure level) measured according to the work cycle procedures specified in ANSI/SAE J1166 OCT98 is 76 dB(A), for the cab offered by Caterpillar, whe
Note (2)
Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in noisy environments.

Body Hoist

Raise Time
12 s
Lower Time
8 s

Standards

Brakes
ISO 3450 – 2011
Cab - ROPS
ISO 3471 – 2008
Steering
ISO 5010 – 2007
Cab - FOPS
ISO 3449 Level II – 2005

Operating Weights

Front Axle - Empty
32882 lb
Total - Rated Load
61729 lb
Rear Axle - Empty
9436 lb
Center Axle - Loaded
37236 lb
Total - Empty
52305 lb
Front Axle - Loaded
40113 lb
Rear Axle - Loaded
36685 lb
Center Axle - Rated Load
27249 lb
Total - Loaded
114034 lb
Front Axle - Rated Load
7231 lb
Center Axle - Empty
9987 lb
Rear Axle - Rated Load
27249 lb

Body Plate

Type
High strength Brinell HB450 wear resistant steel

Steering

Lock to Lock
4.75 seconds @ 60 rpm

Turning Circle

Turning Dimensions - Clearance Radius
318 in
Turning Dimensions - Steer Angle - Left/Right
45°
Note
Dimensions are for machines equipped with 23.5R25 tires.
Turning Dimensions - Inside Radius
153 in
Turning Dimensions - Aisle Width
210 in
Turning Dimensions - SAE Turning Radius
294 in