ESP-550T / ESP-760T Trailer Systems

Hydraulic Piston Pump System

Our hydraulic piston pumps offer high performance which has been unsurpassed for 25 years. Whether you need power to supply two simultaneously operating handwands or a simple material transfer, Nealco™ offers the one system that outperforms them all.

The piston pump is driven by a self-contained electro-hydraulic pump head. The material is supplied to the pump by 2-inch (5.08 cm) plumbing. The large 1/4-inch (0.635 cm) plate surge tank provides a smooth and consistent flow of material and is filtered through an in-line filtering system that prevents debris from entering the pump. All spray systems come standard with 75 feet (22.9 m) of reinforced hose and a 5-foot (1.52 m) handwand. The pump system is powered by a 16 HP gas engine. Benefits of the piston pumping system include:

• Hydraulically driven piston pump specifically designed for high sand loads.
• Fastest transfer rate on the market. The piston pump can draw material into the unit's tank at very rapid rate. Refilling your system is quick and efficient. Each stroke moves one gallon of material.
• Fully hydraulic system. This means better dependability, quieter operation and less horsepower consumption with no compressor to maintain!
• Ability to pump up to 16 lbs. of sand per gallon (1.92 kg of sand per liter) of sealer which may be required on some state, federal and FAA contracts.
• 75% fewer parts than air pumps and is easily rebuilt with an inexpensive seal kit. Seals last on average for 200,000 gallons (757,082 liters) depending on sand load.
• "On demand" action. Pumps only when the pressure drops (only when you are spraying).
• No Daily Flushing. Other pump systems require flushing after every job.

Nealco™ offers two models of our hydraulic piston pump.

• ESSP 100 gallon per minute (378.5 lpm) pump
• ESP 50 gallon per minute (189.3 lpm) pump

The larger ESSP piston pump comes optional with all spraybar systems. The ESSP system provides the contractor with high volume for efficient spraying and is capable of pushing a 15-foot (4.57 m) spraybar.

The ESP piston pump is standard on the 550T and 760T units. The ESP pump provides exceptional service for one or two handwands.

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