14
Oct

Vermeer’s XR2 vacuum excavator separates liquids and solids on website, eliminating many disposal journeys (VIDEO)

Now that hydro excavation and gentle dig have gotten in style as underground contractors search extra methods to keep away from utility hits, two primary issues with the method have come to the forefront, says Vermeer.

One is dumping the spoils in an accredited method. The opposite is getting an uninterrupted full day’s service out of a hydrovac truck, which might attain spoil tank capability earlier than the day is over, inflicting work to cease whereas the truck travels to and from an accredited dump website.

“Your crews are tied up and they’re ready,” mentioned Doug Hundt, president, industrial, Vermeer, throughout the bells-and-whistles reveal of the corporate’s XR2 vacuum excavator at ICUEE.

To fight this stuff, the XR2 combines the gentle dig know-how of a hydrovac truck with localized separation know-how of a reclaimer. The entrance half of the truck contains a conventional truck vac. The again half of the truck is the place issues get fascinating.

As an alternative of getting the unit retain all supplies in a single spoil tank after which make a number of disposal journeys, the XR2 separates the solids and liquids on board and onsite.

“Our entire aim is to maintain crews on the jobsite loads longer,” says Lee Schroeder, gross sales supervisor, utility product group, Vermeer.

 

The 14-foot conveyor belt will be positioned in a 180-degree radius, and be raised as much as 80 inches for truck loading.

The method

As with a conventional vac truck, crews use a excessive strain water wand to interrupt up the bottom, and the vacuum growth removes materials from the outlet. That’s when the similarities between a conventional unit and the XR2 finish, Vermeer says.

When materials is vacuumed up by means of the 21-foot XR2 growth, it goes into an onboard deceleration tank that exits trough a constantly vacuuming airlock that stops any suction loss whereas vacuuming, Vermeer says.

The fabric is then dropped onto a shaker deck that separates solids and liquids. The solids are conveyed out the again of the truck by way of a 14-foot remote-controlled conveyor that may be positioned sideways in a 180-degree rotating radius and has as much as an 80-inch discharge top for truck loading. The ensuing materials can both be left on website or carried away, relying on jobsite and native necessities.

“We would have liked to keep up all the efficiency of a conventional vac truck,” Schroeder says. The 6-inch hose produces as much as 3,400 cfm of suction; the unit has a reverse circulation perform to dislarge massive chunks of fabric. All capabilities will be managed by means of the unit’s distant.

4 side-by-side tanks on the Vermeer XR2 vacuum excavator permit freshwater and recovered fluids to be managed all through drilling.

Dealing with the fluids

The XR2 has 4 500-gallon side-by-side tanks that carry 1,500 gallons of water. The XR2 arrives at a job with three tanks filled with recent water and one tank empty. The unit has a freshwater transport weight of 51,000 kilos.

After separation from solids, the remaining fluid is routed from beneath the shaker screens to the empty tanks on the truck. As work proceeds, processed liquids are first pumped into the unit’s reserved empty tank after which robotically switched to a different tank because the freshwater provide is depleted and the reserve tanks refill.

The tanks are designed with sloped bottoms, so slurry will be pumped out earlier than freshwater is replenished. Tank ranges will be seen anytime from the management station situated on the facet of the XR2.

The XR2 return weight is round 53,000 kilos when on the advisable full capability of 10.5 ppg of slurry, an necessary consider adhering to DOT truck and trailer weight restrictions.

“Being street authorized to and from the job website was essential,” Schroeder explains. This meant a balancing act between water capability and weight.

The XR2 makes use of a Kenworth T8800 truck with an Allison automated transmission and Chelsea PTO. The models has a curb weight of 39,000 kilos and a return weight of 53,000 kilos when on the advisable full capability of 10.5 ppg of slurry. With the conveyor in transport place, the truck measures 36 toes lengthy, has a width of 102 inches and a top of 138 inches.

The PTO robotically transitions energy between the vacuum system and the truck drive system. Crews not must manually disengage and reengage the system each time the unit is moved.

The XR2 can be obtainable in early 2020 in choose areas. In line with Schroeder, the XR2 value can be within the $450,000 to $550,00 vary. “With 1,500 gallons of onboard water capability, you robotically have extra manufacturing than 6-inch vac vans,” he says.