Magnetic AP-MM Asphalt Release Spray System

Model # 977845

The Magnetic AP-MM Asphalt Release Spray System is a magnetic sensor activated asphalt release sprayer for diluting chemical concentrate "on-the-fly" using a metering manifold and for coating any length asphalt truck bed with asphalt release agent. When a truck comes into range of the magnetic sensor, the system activates and a delay timer allows the driver to position the truck under the spray nozzle before applying release agent. When the vehicle leaves the spraying area, or time expires, the system shuts down and resets.

Key Features

  • The driver remains in his cab and avoids the risk of slip-and-fall injury and chemical waste
  • Designed to spray asphalt release chemicals on to truck beds from a nozzle that attaches to an existing drive-through spray bar
  • The rugged Sandpiper pump draws chemical concentrate and water from static tanks and blends them "on-the-fly"
  • Achieves a wide range of dilution ratios using a metering manifold
  • An adjustable timer delays spraying to allow the driver to position the truck
  • Evenly coats the truck bed in just seconds, reducing run-off and chemical waste
  • Spraying stops when the driver leaves the area or time expires
  • Chemical resistant wetted components ensure years of outstanding performance with minimal maintenance
  • See other Lafferty asphalt release equipment and industrial chemical applicators in Catalog 8


  • Lockable, stainless steel enclosure
  • Control box with delay/run timers and magnetic sensor
  • Water float valve assembly for user supplied tank
  • 1/2" Sandpiper AODD Pump (Santoprene diaphragms)
  • Machined polypropylene metering manifold
  • 40' discharge hose with square spray nozzle
Chemical Concentrate
Static Tank of Water
Compressed Air up to 10 CFM
Minimum Air Supply Line 3/8"
Hose 3/4" ID x 40'
Nozzle 45WSQ
Electric 120V
Heater Assembly
Retro-Fit Heater Assembly# 720981
Drum & Tote Stick Lengths, Styles & Seal Materials
Drum Stick, 33" (Viton or EPDM)# 491643 / 491643-E
Drum Stick, 48" (Viton or EPDM)# 491648 / 491648-E
Drum Stick, 54" (Viton or EPDM)# 491645 / 491645-E
Tote Stick, 33" (Viton or EPDM)# 491653 / 491653-E
Tote Stick, 48" (Viton or EPDM)# 491654 / 491654-E
Tote Stick, 54" (Viton or EPDM)# 491656 / 491656-E
Lafferty Equipment Manufacturing, Inc.
5614 Oak Grove Road
North Little Rock, AR 72118
TFN: 1-800-999-2820

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