PM200 Road Milling Sensor 317-7751 Tracer String Sensor for Asphalt Milling Machine Spare Parts

PM200 Road Milling Sensor 317-7751 Tracer String Sensor for Asphalt Milling Machine Spare Parts

Tracer String Sensor 317-7751 — Product Features for PM200 Road Milling Machines

The 317-7751 tracer string sensor is a precision position-measurement component designed for the electrical system of PM200 road milling machines. It plays a critical role in the automatic leveling function, ensuring consistent milling depth and surface smoothness.

Working Principle

This sensor operates on a draw-wire principle: a spring-loaded cable reel is coupled to a rotary encoder, and as the side plate moves relative to the machine frame, the cable extends or retracts, converting linear displacement into an electrical signal. The controller uses this signal to calculate current milling depth and adjust the front lifting columns accordingly.

Key Technical Characteristics

The sensor is engineered for harsh road construction environments. It delivers reliable performance under dust, moisture, vibration, and temperature fluctuations typical of milling operations. Measurement accuracy directly influences milling precision, with modern leveling systems achieving depth tolerances within millimeters.

Installation and Compatibility

Designed as a direct replacement for part number 317-7751, this sensor matches the original mounting configuration and electrical interface. It is positioned within the machine’s electrical system and weighs approximately 2 kg per unit. Standard packaging includes carton, pallet, or wooden case options for global shipping.

Application Value

In automatic leveling systems, this sensor continuously monitors the position of the side plate running on the reference surface. When pavement elevation changes, the sensor signal triggers the control system to raise or lower the front legs, maintaining the preset milling depth. This closed-loop feedback significantly improves surface flatness and reduces material waste

Suzhou Benit Machinery Technology Co.Ltd is specialized in manufacturing and retailing after-market parts of asphalt paver, milling machine and road roller. We provide daily maintenance, overhaul and technical service for our customers. Our main products includes: 1. For asphalt paver,asphalt paver material sensor of ,steel conveyor chain,the screed plate,screed temperature sensor, 423 chain wheel components 2. For milling machine,asphalt bits,ejector milling drum,cutters BNT620x,bits teeth cutting head holder,w215 w220 ultrasonic depth sensor. 3. For road roller, natural rubber anti vibration mounts, water pump and plastic sprinkler fittings and other various road construction euipment parts.

Benit is loed in Home of German Enterprises - Taicang. With its splendid geographical position, Benit enjoys convenient water, land and air transportation, which ensures its timely delivery and export. Benit has distributed its products all over the world, such as Germany, Ghana, Indonesia, Italy, Lebanon, Mexico and established a stable and friendly cooperation relationship with those companies.

Benit will always adhere to its management concept,"honest, quality first,service first", constantly upgrading its products and making more innovations. We offer professional technical support, perfect after-sales service and complete product stock to every road construction company, aiming to live up to all their expectations.

Benit is going to be stronger with the support of all our dear clients. We warmly welcome you to contact us for future business relationship and are sincerely looking forward to working with you.

Q1.Are you a manufacture?

A1:Yes,we have workshops and automatic production lines of rubber products, screed plates and electronic products. regarding to other items, we are OEM supplier.

Q2.What is your supply capacity?

A2.Annual output 650000 of track pads.

Q3.Can you provide samples?

A3.We can provide samples, but we need to pay the sample fee and freight.

Q4.Do you have a minimum order?

A4. Yes, It is up to different products. Normally MOQ 1pcs is acceptable.

Q5. What is your delivery time ?

A5. Around 7-10 days depend which products and quantities, please confirm with sales rep.

Q6.Payment terms?

A6. TT, LC at sight , DP are all acceptable / negotiable and case to case.

Q7. CIF / FOB / EXW etc..

A7. FOB Shanghai or EXW with factory address at Taicang, Suzhou city, Jiangsu province. Pls send destination port for quote on CIF.

Q8. Shipping

A8: Air freight cargo,Train or sea shipment.