The Cat® 730 EJ articulated truck offers a unique advantage by ejecting material in low-clearance areas—ideal for tunnels, overhead lines, or underground work. On-the-go ejecting cuts the need for extra equipment, speeding up cycles and boosting productivity on compact jobsites.
| Engine Model | Cat® C13B | 
| Gross Power (SAE J1995) | 361hp | 
| Net Power (SAE J1349) | 351hp | 
| Engine Power (ISO 14396) | 370hp | 
| Bore | 5.1in | 
| Stroke | 6.2in | 
| Displacement | 763in³ | 
| Note (1) | Advertised power is tested per the specified standard in effect at the time of manufacture. | 
| Note (2) | Advertised power is tested at 1,800 rpm. | 
| Note (3) | Net power available at the flywheel when the engine is equipped with alternator, air cleaner, muffler, and fan at minimum speed. | 
| Note (4) | Net power when the fan is at maximum speed is 262 kW (351 hp) per the SAE reference conditions. | 
| Note (5) | Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014, and Korea Stage V emission standards. | 
| Note (6) | Diesel exhaust fluid (DEF) used in Cat SCR systems must meet the requirements outlined in ISO 22241-1:2006. ISO 22241-1 requirements are met by many brands of DEF, including those that carry the AdBlue or API certifications. | 
| No Engine De-rating Below | 12500ft | 
| Peak Engine Torque Gross (SAE J1995) | 1579lbf·ft | 
| Peak Engine Torque Net (SAE J1349) | 1564lbf·ft | 
| Peak Engine Torque Speed | 1200r/min | 
| Rated Payload | 30ton (US) | 
| Heaped (SAE 2:1) | 22.1yd³ | 
| Struck | 17.7yd³ | 
| Forward - 1 | 5mile/h | 
| Forward - 2 | 9mile/h | 
| Forward - 3 | 14mile/h | 
| Forward - 4 | 21mile/h | 
| Forward - 5 | 29mile/h | 
| Forward - 6 | 34mile/h | 
| Reverse - 1 | 6mile/h | 
| Note (1) | The declared dynamic operator sound pressure level is 72 ± 2 dB(A) when ISO 6396:2008 is used to measure the value for an enclosed cab. The measurement was conducted at 70% of the cooling fan’s maximum speed. The sound level may vary at different cooling | 
| Note (2) | Hearing protection may be needed when operating with an open operator station and cab or when not properly maintained or doors/windows open for extended periods or in noisy environments. | 
| Front Axle - Empty | 33356lb | 
| Center Axle - Empty | 12368lb | 
| Rear Axle - Empty | 11839lb | 
| Total - Empty | 57563lb | 
| Front Axle - Rated Load | 1433lb | 
| Center Axle - Rated Load | 29156lb | 
| Rear Axle - Rated Load | 29156lb | 
| Total - Rated Load | 59156lb | 
| Front Axle - Loaded | 34789lb | 
| Center Axle - Loaded | 41524lb | 
| Rear Axle - Loaded | 40995lb | 
| Total - Loaded | 117308lb | 
| Type | High strength Brinell HB450 wear resistant steel | 
| Eject Time | 12s | 
| Retract Time | 15s | 
| Fuel Tank | 106gal (US) | 
| DEF Tank | 9gal (US) | 
| Cooling System | 21.9gal (US) | 
| Hydraulic System | 32.5gal (US) | 
| Engine Crankcase | 11.4gal (US) | 
| Transmission | 12.4gal (US) | 
| Final Drives/Differential | 33gal (US) | 
| Output Transfer Gear Box | 6.6gal (US) | 
| Brakes | ISO 3450:2011 | 
| Cab - FOPS | ISO 3449:2005 Level II | 
| Cab - ROPS | ISO 3471:2008 | 
| Steering | ISO 5010:2019 | 
| Turning Dimensions - Steer Angle - Left/Right | 45° | 
| Turning Dimensions - SAE Turning Radius | 294in | 
| Turning Dimensions - Clearance Radius | 318in | 
| Turning Dimensions - Inside Radius | 148in | 
| Turning Dimensions - Aisle Width | 214in | 
| Note | Dimensions are for machines equipped with 750/65 R25 tires. | 
| Lock to Lock | 4.75 seconds @ 60 rpm | 
| Hydraulic Excavators: 350/352 - Passes | 4-5 | 
| Hydraulic Excavators: 336 - Passes | 5-6 | 
| Wheel Loaders: 972/972 XE - Passes | 3-4 | 
| Wheel Loaders: 966/966 XE - Passes | 4 | 
| Wheel Loader: 962 - Passes | 4-5 | 
| Wheel Loader: 950 - Passes | 5 | 
| Note | An optimum system match gives you a major productivity advantage. The 730 EJ is an excellent match for the Cat 350/352 and 336 Hydraulic Excavators; and Cat 972, 966, 962 and 950 Wheel Loaders. Having matched loading and hauling tools results in increased | 
| Note | 
                                
  | 
                        
| Operator Environment | 
                                
  | 
                        
| Technology | 
                                
  | 
                        
| Electrical And Lighting | 
                                
  | 
                        
| Powertrain | 
                                
  | 
                        
| Safety | 
                                
  | 
                        
| Guards | 
                                
  | 
                        
| Other Standard Equipment | 
                                
  | 
                        
| Note | 
                                
  | 
                        
| Operator Environment | 
                                
  | 
                        
| Technology | 
                                
  | 
                        
| Electrical And Lighting | 
                                
  | 
                        
| Optional Equipment | 
                                
  |