Komatsu 860E-1K ELECTRIC TRUCKS

4650 Horsepower Continuous Retarding Capability

The 3469 kW 4,650 HP retarding system provides state of-the-art braking capacity for navigating today’s mining applications which contain steep continuous descents and sharp switchbacks.

Castings Used in High Stress Areas

To increase frame reliability, steel castings have been incorporated at key frame pivot points and key load bearing critical portions of the frame. This includes the rear body pivot and horsecollar sections.

Dynamic Retarding

For daily operation, the 860E-1K is equipped with an electric retarding package which can supply up to 3469 kW 4,650 hp of resistance. When requested, the wheel motors switch from motors to electrical generators. The resistive force created from this process is used to slow the truck to the desired speed. The power generated is then run over an 18 element grid which converts the electricity into heat. The heat is then dissipated into the atmosphere by the quietest grid blower Komatsu has ever used.

Ergonomically Designed Cab

The Komatsu 860E-1K cab design provides the operator with an environment where they can be comfortable and confident during operation. The rubber mounted isolated cab includes tinted safety glass, power windows, heating and air conditioning, acoustical insulation, double sealed doors, and filtered, pressurized air.

Fully Hydraulic Controlled Multiple-Disc Wet Brakes

The 860E-1K comes standard with four-wheel, hydraulically actuated, oil cooled service brakes. In the event that the truck’s hydraulic system pressure drops below an acceptable level, accumulator tanks will automatically apply all wheel brakes to bring the truck to a complete stop.

Hill Start

With the new Komatsu Drive System comes a new innovation in electric truck technology. The Hill Start feature allows the operator to start the machine on a grade without roll back.

Hydropneumatic Suspensions

Hydrair^® II suspension cylinders located at each wheel provide a smooth and comfortable ride for the operator and dampen shock loads to the chassis during loading and operation.

Komatsu AC Electric Drive System

The Komatsu drive system, utilizing Siemens AC control, offers independent control of the rear wheelmotors. This provides outstanding traction during wet and slippery conditions, thus improving tire wear and operator confidence.

Payload Policy

Recognizing that variation occurs naturally in material density, fill factors, and loading equipment, Komatsu America Corp. deems it necessary to establish a consistent loading policy for the 860E-1K. This loading policy is intended to identify the guidelines for the loading of Komatsu Mining Trucks, and is valid for approved applications and haul profiles only (see chart below).

Steering

By using double acting hydraulic steering cylinders with a six-point articulation linkage, the 860E-1K power steering system provides positive steering control with minimal operator effort. The turning circle has a diameter of 31 m 102 ft. The accumulator-assist steering system surpasses requirements set forth by ISO 5010.

Traction Control

During slippery conditions caused by inclement weather and/or application severity, the 860E-1K traction control technology utilizes information from all four wheels to detect and correct wheel spin and/or slide events. Traction Control operates automatically and independently of the service brakes, providing a more efficient means of controlling the machine in inclement conditions.

Trolley (optional)

The factory installed 860E-1KT trolley system allows for faster ascent up grades, providing higher production and lower fuel consumption compared to conventional diesel systems.

Body

All-welded steel flat floor body with horizontal bolsters and full canopy. Tapered body, body up sling and frame mounted rubber pads are standard. Heated body optional. 

Braking System