Equipment World

February 2018

Equipment World Digital Magazine

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EquipmentWorld.com | February 2018 29 systems of passenger vehicles. Anti-collision devices relying on proximity sensors are in the works and will be released soon. Kobelco's hybrid SK210HLC-10 uses lithium-ion batteries to drive the swing motor. Dave Donneral, specialized machine sales manager, Kobelco, says fuel savings are enough to sell hybrids in other mar- kets where fuel costs are much higher than in North America. "Domestic customers also want better fuel economy and lower environmental impact, but they won't give up performance or production or pay a hefty premium to obtain those benefi ts, so we built the SK210HLC-10 just for North America." Compared to the non-hybrid SK210-10, the SK210HLC-10 provides fuel savings of up to 40 per- cent and a reduction in CO2 of up to 40 percent. But compared to the SK210-9, the hybrid also offers up to 15 percent greater productivity and more than 27 percent greater effi ciency. (All comparisons using H, or hydraulic mode.) Komatsu Komvision is Komatsu's name for its bird's-eye-view option. A rearview camera is standard; Komvision adds two or three cameras and stitches together mul- tiple views for that overhead perspective. The option is available on new excavators but is not backward- compatible with older ones. Justin Lantin, product marketing manager, exca- vators, says Komatsu now offers two hybrid mod- els. The company took the technology from the HB215LC-1 and applied it to the new HB365LC-3. The system offers the benefi ts common to hybrids (see sidebar on page 25) as well as other benefi ts operators appreciate. Swing speed is more easily controlled. And because hydraulics are not employed for the swing motion, hydraulic functions in use dur- ing swing stay more consistent and predictable. The design also boosts the total output of the diesel en- gine by coupling the engine and the motor together, conceptually similar to how many hybrid passenger vehicles work. Ron Schwieters, product manager, Komatsu, says the company's approach is unique in that it uses externally mounted cylinder sensors on the boom, stick and bucket. These are position sensors; there are IMUs in place in other locations on the machine. Compared to other designs using internal sensors, he says, Komatsu's approach yields faster sensor response times and components that are easier to maintain. Schwieters says their system stores the en- tire bucket profi le, not just the teeth. The semi-auto- matic system is active only when the bucket or other attachment is in contact with the design surface. Even when the semi-automatic is running, the operator machine matters | continued Already in use in other JCB machines, the MTU 6R1000 was also chosen to power the company's three new excavators, the JS300, JS330 and JS370. Ratings are 241 horsepower in the JS300 and 281 horsepower in the JS330 and JS370. Diesel exhaust fl uid (DEF) usage of about 3 percent of fuel consumption and a 12.4-gallon (47-liter) DEF tank mean operators will top off DEF with every third tank of fuel. Net horsepower for the 38-metric-ton Komatsu HB365LC-3 hybrid excavator is 269. An ultra-low idle speed works with hybrid technology to reduce fuel consumption up to 20 per- cent. The engine-driven generator can function as an electric motor to improve engine response coming off idle, and large-displacement, high-effi ciency pumps improve hydraulic performance at lower engine speeds.

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