New Komatsu WA800-8 wheel loader assist operators during V-cycle loading

September 2, 2020
Experienced operators know that V-cycle loading can be a challenging application that takes time to master. One way to speed up the learning curve is with machinery features that assist in automating the process, according to Robert Hussey, Komatsu Product Marketing Manager. 
 
“Several factors are part of a successful loading cycle, including proper digging into the pile to get a full bucket, approaching the truck, dumping, backing up and turning,” said Hussey. “Helping new operators become proficient as quickly as possible is essential. We took that into account when designing our updated quarry, aggregate and mining loaders, including the new WA800-8.”
3 key systems that contribute to productivity and efficiency

3 key systems that contribute to productivity and efficiency

Hussey highlighted three key systems that contribute to productivity and efficiency, which can be used together or separately to automate the work phases when V-cycle loading haul trucks:
 
  1. Automatic dig optimizes bucket load, actuating the bucket tilt and lifting operations by sensing the pressure applied to the work equipment.
  2. Semi-automatic approach raises the boom automatically when reversing out of the pile. The lift arms elevate until reaching the upper setting of the boom positioner, allowing the operator to focus on the travel path of the loader. 
  3. Semi-automatic dump automatically raises the lift arms and dumps the bucket with the push of a button. After dumping, it levels the bucket and returns the lift arms to the lower boom positioner setting; however, the lift arms will not lower until the bucket has cleared the truck.

New bucket design

The WA800-8’s bucket has a new shape that includes an increased radius and floor inclination that make it easier to fill and retain material. The spill guard was adjusted to give operators improved visibility to the pile, and sweeper wings on either side protect the front tires.

“We also responded to customer requests by introducing a modulation clutch for optimal tractive effort and throttle lock that improves cycle times by maintaining high work-equipment performance and saves fuel with auto-deceleration.”
 

Quick Specs on Komatsu’s WA800-8 Quarry, Aggregate, Mining Wheel Loader

Net Horsepower
854 hp
 
Operating Weight
254,700 lb
 
Bucket Capacity
15 cu yd
 
Ideal Truck Match
60- to 100-ton

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