InfraStructures - March 2015 - Neal Manufacturing Upgrades DA-350 Sealcoating Machine

Neal Manufacturing Upgrades DA-350 Sealcoating Machine

Neal Manufacturing, an industry pioneer and leader in asphalt sealcoating equipment, upgraded its DA-350 Dual Applicator sealcoating machine to enhance productivity and ease of use. The 2-wheeled, self-propelled unit has a 1,325 l tank and allows contractors to apply sealcoat with squeegee and spray systems.

Neal added a high-powered blower to the front of the DA-350 to help users quickly and easily prepare the surface for sealcoat application. The blower produces more than 170 m3/min (3 times the output of a typical walk-behind blower) for fast and thorough dirt and debris clearing. The blower unit rotates, allowing contractors to lock it in an upright position for transportation or move it down for operation. The nozzle on the blower articulates 360° enabling the contractor to blow debris in the optimum direction. Once the blower cleans the area, a 150 l fogger system cools surfaces prior to application to ensure optimal adhesion.

The DA-350’s new 2.4 m, diamond-shaped squeegee assembly features internal baffles that help distribute material more evenly than squeegee assemblies without baffles. After applying a coat with the squeegee, contractors can apply a second coat with the DA-350’s 6-nozzle spray bar. A spray coat also can be applied with a 182 cm hand wand connected to 22.8 m of reinforced hose for added versatility on the jobsite.

Neal’s dual application system gives contractors the ability to fill the voids in the surface of the asphalt with the squeegee.

They can then apply a second coat with the spray bar for a smooth finish that completely seals the asphalt and lasts as much as 40% longer than a job done with 2 spray coats.

The DA-350 has a hydraulic-powered piston pump that can transfer as much as 378 l/min of material and it produces enough pressure to pump modified sealers and emulsions, as well as mixes with as much as 1.2 kg/l of sand. The machine comes standard with a 38 hp Kohler gasoline engine, or an optional 35 hp Kubota diesel engine.

Source: Neal Manufacturing

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