Caterpillar’s MT5300D AC 320-ton-capacity (290-t-capacity) mining truck integrates a Cat C175-16 engine and Cat 360T AC electric drive system with the Unit Rig MT Series trucks. The MT5300D AC takes its place in Caterpillar’s large mining truck product line between the 250-ton-capacity (227-t-capacity) 793F and the 360-ton-capacity (327-t-capacity) 795F AC.

The new truck builds on Unit Rig’s 50 years of electric-drive mining truck experience and the thousands of units currently working in mines around the world. The strength of the Cat engine and drive system combine with Cat dealer support and Unit Rig designs to deliver high performance and efficiency to mining customers. The MT5300D will be commercially available in the near future.

The MT5300D AC leverages Unit Rig’s millions of hours of field experience with the MT Series truck chassis, hydraulics, electrical system and suspension and integrates those systems with a Cat engine, AC drive and vehicle information management system. The Cat AC electric drive train is efficient and reliable, and has logged hundreds of thousands of hours in the lab and field, most notably in the 795F AC, according to the manufacturer.

The Cat electric drive truck program also leverages Electro-Motive Diesel’s (EMD) locomotive experience in design and manufacturing. EMD is a Caterpillar company, and the system is Caterpillar designed, integrated and supported.

The MT5300D AC is designed to offer strong performance, safety, ease of operation and maintenance, and reliability. The Cat C175-16 is proven in Cat large mining trucks, and the Cat AC drive system features dynamic retarding capacity combined with four-corner wet disc brakes. The system creates operator confidence that leads to productive and safe operation, according to the manufacturer.

The ROPS cab, wide access stairways, traction control and quiet radial retarder grid with wide right-side visibility enhance safety and further benefit the operator. Simple hydraulic systems, modular components, hydraulic gauge cabinet, grouped service locations, engine bay service walkways and more ground accessible maintenance points translate into less downtime and enhance safety for maintenance technicians.

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