Komatsu unveils WA475-10 wheel loader with Hydraulic Mechanical Transmission, redesigned cab (VIDEO)
Komatsu has launched the primary of its next-generation, Sprint-10 wheel loader fashions. The WA475-10 is an electronically managed loader with an all-new hydraulic mechanical transmission that mixes the advantages of a hydrostatic transmission with that of a planetary mechanical transmission.
Komatsu says the event of the WA475-10 is a number of years within the making and the method was guided by a need to provide clients throughout the board spec and energy will increase whereas additionally boosting gas effectivity.
You will get all the small print on the brand new WA457-10 in our video protection under. Or, should you favor textual content, you’ll be able to learn on after the break.
New Transmission Transforms Powertrain
Regardless of the Sprint-10 mannequin quantity title and this machine’s added energy, the WA475-10 is powered by the identical Komatsu 6-cylinder engine that’s discovered within the WA470-Eight. That is additionally the identical engine that powers the bigger WA480-Eight.
Nevertheless, within the WA475-10, Komatsu has tuned the engine to output 290 horsepower. In response to Komatsu’s listed specs on their web site, that’s 18 extra greater than the WA470-Eight that got here earlier than it and simply 9 lower than the bigger WA480-Eight.
However right here’s the important thing to how Komatsu has managed extra energy and higher efficiency out of this new machine whereas additionally dropping gas consumption. Whereas the WA470-Eight and WA480-Eight attain their peak horsepower at 2,000 rpm, the WA475-10 does it at simply 1,600 rpm. And as you recognize, extra energy at decrease engine speeds means higher gas effectivity.
Since Komatsu is utilizing the identical engine discovered within the WA470 and WA480 Sprint-Eight fashions, the distinction with the WA475-10 is a brand new hydraulic mechanical transmission. This loader doesn’t have a torque converter. Primarily this transmission combines Komatsu’s hydrostatic transmission know-how with that of a planetary transmission and makes use of a brand new journey velocity management dial to permit operators to set velocity.
Komatsu says the transmission divides engine energy into two paths. Relying on the velocity chosen utilizing the brand new management dial, hydrostatic management can be carried out when excessive torque is required, or planetary management can be utilized in lighter conditions to extend gas effectivity.
“So we’ve a pump and motor coupled with a planetary transmission. What that does for us is it offers us 30 p.c extra gas effectivity—manufacturing per gas—and 17 p.c much less gas consumption than its predecessor,” says Bruce Boebel, Komatsu’s senior product supervisor for wheeled merchandise. “So once you’re doing a little V-cycle, you’re doing excessive torque sort work, it goes extra to the hydrostatic facet of the transmission. Let’s say you rise up to hurry, you’re doing a little load-and-carry work. Then mainly it shifts over to the mechanical. It’s similar to type of like a direct drive portion, so that you get a variety of gas financial savings.”
The top results of these positive factors is a 14-percent enhance in productiveness within the WA475-10 over the WA470-Eight.
Komatsu says that one other good thing about this new hydraulic mechanic transmission is that it options dynamic braking. This optimized braking system lets you use the journey velocity management dial to help in slowing down the machine with out utilizing the brake pedal. Komatsu says utilizing dynamic braking by the dial can scale back brake put on for prolonged part life.
One other brake-saving characteristic on the 475-10 is the inclusion of an auto hill-holding characteristic. This enables the machine to carry its place agency on a slope, equivalent to when stockpiling, even once you’re not miserable the brake pedal.
Beefed-up Hydraulics, New Bucket Accessible
The powertrain isn’t the one ingredient of the 475-10 that Komatsu strengthened. The hydraulics on this machine have been beefed up too. The machine options bigger increase cylinders which have made increase carry 20 p.c stronger than what’s discovered on the 470-Eight. Breakout pressure that has been elevated by Eight p.c.
Komatsu has additionally carried out a big bore bucket cylinder related to what’s discovered on the WA470-Eight log loader.
Alongside the WA475-10, Komatsu has additionally launched with a brand new bucket design that the corporate says drives deeper right into a pile for simpler filling. This 5.Eight-cubic-yard bucket includes a longer jaw for simpler loading and bigger facet curves for retaining materials. The brand new ground form and radius profile assist roll materials into the bucket for simpler loading.
One other characteristic that has decreased gas consumption additionally simplifies operation of the 475-10 and that’s Impartial Work Tools Management.
“What meaning, let’s say on its predecessor, let’s say you’re coming as much as a truck, and also you want your work tools to go quicker,” Boebel explains. “You hit the accelerator and also you hit the levers and also you need that come up shortly. Abruptly, you’re coming too near that truck, it’s essential to decelerate. So you then’re on the brake.”
On the 475-10, Impartial Work Tools Management separates the accelerator pedal from the velocity of the work tools solely. “So this machine is way easier in that respect,” Boebel provides. “So if you would like the work tools to go quicker, you simply stroke the levers extra.”
Plus, now you can customise the velocity at which the work tools strikes when pulling the the increase lever by both the increase or decrease detents. You’ll be able to select between Gradual, Center and Quick speeds. One other time-saving Komatsu has included is push-button bucket leveling. Test these options out in motion within the video above.
Final yr, Komatsu launched the newest model of its WA900 loader. The Sprint-Eight era of that machine features a suite of latest automation options that permit the machine to dig into piles, strategy vehicles and dump into vehicles with little to no operator enter. In the event you haven’t seen our video taking a look at how these options work on the WA900-Eight, you’ll want to test that out under.
The WA475-10 doesn’t get the entire auto options discovered on the 900-Eight, however Boebel says it does get Auto Dig.
When you’ve pulled the loader as much as a pile with the bucket at a digging prepared peak—which Komatsu classifies as 3 toes 9 inches or decrease—you then push the devoted auto-dig change and let the system do nearly all of the give you the results you want. An computerized kick-down change can decrease the machine into first gear and also you as push the bucket into the pile, the system mechanically curls the bucket to gather materials earlier than lifting the increase again to horizontal.
Redesigned Cab Boosts Visibility
Shifting on to the cab of the WA475-10, it’s an all-new design constructed round buyer suggestions. Inside you’ll discover a extra spacious and comfy working setting, with new, extra ergonomic change positions together with an audio system that helps Bluetooth, USB, AUX and FM/AM radio connections.
“Quite a lot of issues are constructed into this from all these surveys through the years. Now we have the rear view monitor now consistent with the mirrors…The seat may be very adjustable. Now we have a 5 approach adjustable armrest,” Boebel says.
That is additionally the primary Komatsu machine to characteristic heated and distant control-rear view mirrors. With a faucet of the rear defroster change, the mirrors warmth up and their angle will be adjusted utilizing a change on the appropriate overhead console.
The WA475-10 will be configured with both a steering wheel or joystick steering which is a brand new choice for this dimension class. Plus, Komatsu labored fairly a bit on enhancing visibility with this new cab.
The corporate says it added glass at every entrance nook of the brand new cab, the underside of every door and the rear windshield. Plus, Komatsu has switched to a barely curved design for the entrance windshield.
“We determined to eradicate two of the pillars of the cab. So should you look in the back of the cab, there’s no pillars in that again corners. That visibility’s wonderful out of the again nook behind you,” Boebel says. “So we solely have 4 posts in there, a lot of glass, the cab is the glass is curved, so the operator can sit again additional within the cab. So if in case you have a tall operator, they’re gonna be very, very snug within the cab.”
The brand new cab design additionally options fairly a little bit of storage together with a holster in your smartphone, bin storage, journal and doc storage and a spot in your lunchbox.
Lastly, on the upkeep facet, the WA475-10 options ground-level entry doorways for day by day upkeep.
“Now we have a folding tilt tilt hood on this machine. … All of your day by day checks will be accomplished by the 2 rear doorways on the facet, so it’s very handy for purchasers,” Boebel says. “Moreover, the rear panels swings out and the fan swings out so you will get to these facet by facet coolers. It does have an auto reversing fan, additionally.”
The machine additionally options detachable mud flaps and small engine compartment facet panels that permit tool-less entry to gas filters, lube oil filters and the closed crank case air flow filter meeting.