Ultrasonic Sensor 372-0971 AP655F AP355F Asphalt Paver Screed Grade Control Sensor

Grade control on a paver only works as well as the sensor feeding it. This ultrasonic grade sensor measures the reference surface without touching it, sending a continuous height signal to the screed control so the tow point is corrected before the error reaches the mat. Supplied as a direct replacement unit under reference number 372-0971, covering AP655F and AP355F tracked pavers.

A mechanical ski has to physically ride the reference and it collects material, bends and stalls. An ultrasonic sensor reads the surface from above, so there is nothing to drag, nothing to clean off at every joint, and no wear surface to replace. The result is a height reading that stays repeatable across the whole shift, including over milled surfaces and around manholes.

• Echo ranging: the probe emits an ultrasonic pulse and times the return echo to calculate the distance from probe to reference surface.
• Signal filtering: the unit averages over a short window, so loose aggregate, texture and vibration do not translate into grade noise.
• Control feedback: the reading is fed to the screed control console, which trims the tow point to hold the target thickness and slope.

Reference number 372-0971, covering AP655F and AP355F asphalt pavers. Please confirm the machine model, mounting position and connector type on the existing harness before ordering, so the unit plugs in without adaptation.

Supplied in neutral export carton with part number label only. Send us the machine model, the reference number from the failed sensor and the quantity you need, and we will confirm stock, lead time and freight to your port.