Dunstan answers to bulk grain handling needs with B-Double tipper

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Victorian farm machinery specialist Dunstan has unveiled a new B-Double grain tipper to help improve the efficiency of cartage operations around the farm.

Dunstan answers to bulk grain handling needs with B-Double tipper
Dunstan's new B-Double grain tipper was recently launched at the Mallee Machienry Field Days

The machine was recently launched at the Mallee Machinery Field Days in Speed, Victoria.

It follows on from the launch of Dunstan’s single aluminium grain tipper earlier this year which the company claims has set new standards for tare weight reduction.

Dunstan Factory Manager-Trailer Division Brendan Murphy says the same design philosophy has been applied to the design of the A-trailer.

"With the earlier B-trailer, which is the second part of the new combination, we were aiming for between six and seven tonnes and got that easily,"

"We’ve now brought the A-trailer in at 6.9 tonnes with standard high tensile G350 steel."

Murphy says while weight reduction had been a major design goal, his team had also set out to improve efficiency and appearance.

""The internal slider guides run on ultra-density polyethylene with removable and adjustable bearing plates. It gives the chassis a clean appearance and eliminates the wear and stress points found on some trailers."

"Locking pins are positive action with a very visible indicator."

Chief designer Chris Liston says the trailer offers open B-double, road train intermediate, and single or closed end tipping configurations.

""It's set up for fast, clean output and turnarounds with a proven tip through grain emptying system. There’s a large centre chute and the wheel chutes don't require the removal of any guard material."

Liston says a lot of thought had also gone into integrated lighting.

"The sidelights are full combination units incorporating indicators that increase the visibility of a turning vehicle, especially important with B-doubles.

He adds a custom designed wiring extrusion creates a smooth appearance while still providing ready access for maintenance.

"It also makes integrated top power accessible for other applications like internal tub lamps, load instrumentation and monitoring devices.," he says.

"The sealed cavity keeps out moisture and dust but a rubber strip is easily removed if you do need to get at the wiring."

Two high power LED lamps sits at the top of the tailgate for ample work area illumination. The lights are easily angled and the switch is down where the driver can access easily.

Dunstan B Double Grain Tipper _2

In addition, the rear doors are made flush for easy cleaning and to create a better appearance while the framework is on the inside with an angled shedder for full emptying.

The front of each trailer features a submarine door and both have internal steps for emergency exit.

Murphy says particular attention had been paid to the mounting of the spare wheel.

"They’re usually on a low hanging tyre carrier which is very prone to damage. Instead, we've used a wind up mechanism that pulls the spare up tightly under the rails clear of stubble and out of harm's way," he says.

"And talking of the chassis rails, ours are full penetration welded both inside and out. Some manufacturers just weld one side."

The current release Dunstan trailers feature Hendrickson Intraxx suspension running on aluminium wheels. However, Dunstan says it is able to source all major brand suspensions, axles and other equipment to meet customer requirements.

Lifting power is provided by Jost Hidromas hoists - four stage on the A-trailer and five on the B-trailer - with both the landing legs and kingpins also from Jost. The rollover tarps are provided by Tipper Tarps.

Dunstan director Craig Miller says the tare weight reduction across both trailers was significant and would improve harvest efficiency.

"Extra payload and investment in good gear helps reduce transport costs," he says.

"We've had over 50 years experience building high-capacity mother bins and chaser bins. Moving into road trailers to provide integrated grain handling solutions has been a logical extension for us."

Click here to find B-Double tipper trailers for sale.

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