Caterpillar meets changing needs with underground truck

Cat AD45 underground truck. Image: Caterpillar

Caterpillar has released the AD45 mining truck for underground hard rock mining, a machine that is available in configurations to meet the strictest emissions standards.

The AD45 truck, which will arrive at users’ sites in early 2020, has the same dimensional envelope as its predecessor (the AD45B) even when configured for minimal exhaust emissions. However, the new truck delivers superior speed.

It boasts a payload of 45 tonnes, which matches with the highly productive Cat R1700 underground loader.

Caterpillar powers the truck with the fuel-efficient Cat C18 six-cylinder engine, which is turbocharged and air-to-air aftercooled. This produces 439 kilowatts in standard configuration and 447 kilowatts in EU Stage V compliant form.

The AD45 also uses the Cat Clean Emissions Module to limit both particulate matter and nitrogen oxide (NOx) to near zero.

This module, which is proven in millions of hours of operation, uses selective catalytic reduction with diesel exhaust fluid injection and a diesel particulate filter.

In addition, Caterpillar offers two additional emissions packages for the AD45. One has emissions equivalent to stage three-A and Tier 3.

The second is Caterpillar’s ventilation reduction system, which incorporates modified engine hardware and software as well as the optional use of a flow through diesel particulate filter for improved underground air quality.

Caterpillar also equips the AD45 with its mechanical drive power train and power shift transmission.

This provides superior operating efficiency and control on steep grades, in poor underfoot conditions and on haul roads and drives with high rolling resistance.

Cat’s seven-speed planetary power shift transmission is also matched with the direct-injection C18 engine to deliver constant power over a wide range of operating speeds.

The AD45 also features serviceability improvements, which include easy access for cleaning chassis-mounted transmission and hydraulic oil coolers.

Its emissions control system automatically cleans the particulate filter without affecting machine operation, and the diesel exhaust fluid tank is sized for refill when refuelling.

This truck is also equipped with Cat Product Link Elite, making it easier to share machine health data across multiple destinations to help miners schedule service and keep the fleet working at maximum availability.

Caterpillar has designed this system to reduce lost data due to network issues.

AD45 also comes with two rear-facing cameras, which feed a display in the cab and expand the operator’s view. The cameras are expected to especially aid the operator when positioning the truck for loading.

The AD45’s payload monitoring system also features an external display to help the loader operator optimise loads.

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