Grade and Slope Control for Road Recycling Machines

Product Specifications

Technical details and manufacturing context for Grade and Slope Control

Definition

The Grade and Slope Control is a critical subsystem within a Road Recycling Machine that ensures the recycled pavement layer meets specified elevation and cross-slope requirements. It continuously monitors and adjusts the cutting depth and screed position to maintain consistent grade and proper drainage slope throughout the recycling operation, essential for achieving a smooth, durable road surface that complies with engineering standards. The system typically uses a combination of sensors (e.g., sonic, laser, or GPS-based grade sensors and slope sensors) to measure the machine's position relative to a reference grade or stringline. A control unit processes this data and sends adjustment signals to hydraulic or electromechanical actuators. These actuators adjust the cutting drum's depth and/or the screed's angle to correct deviations from the target grade and slope in real-time. The system is designed for integration into road recycling machines and operates within specified parameters: control accuracy of ±0.1%, response time ≤50 ms, operating temperature -20 to 60 °C, supply voltage 24 V DC ±10%, power consumption ≤15 W, ingress protection IP65–IP67, sensor resolution 0.01°, communication interface CANopen (optional Profibus DP), weight 12–18 kg, and dimensions 300×200×150 mm (W×H×D). Materials include steel for the structural frame, aluminum for sensor housings, electronic components (PCBs, sensors), and hydraulic components (cylinders, valves). The system is a component, not a standalone machine, and its performance must be verified for the specific model and application. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The system uses sensors (sonic, laser, or GPS-based) to measure the machine's position relative to a reference grade or stringline. A control unit processes this data and sends adjustment signals to hydraulic or electromechanical actuators. These actuators adjust the cutting drum's depth and/or the screed's angle to correct deviations from the target grade and slope in real-time.

Common Materials

Steel (structural frame), Aluminum (sensor housings), Electronic components (PCBs, sensors), Hydraulic components (cylinders, valves)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Control Accuracy	±0.1 %	Grade and slope deviation from setpoint
Response Time	≤50 ms	Time to reach 90% of setpoint
Operating Temperature	-20–60 °C	Outside range may affect sensor accuracy
Supply Voltage	24 ±10% V DC	Protected against reverse polarity
Power Consumption	≤15 W	Typical at nominal voltage
Ingress Protection	IP65–IP67	Dust-tight and protected against water jetsIEC 60529
Sensor Resolution	0.01 °	Angular resolution for grade and slope
Communication Interface	CANopen	Optional Profibus DP availableCiA 301
Weight	12–18 kg	Depending on configuration
Dimensions (W×H×D)	300×200×150 mm	Enclosure only, excluding sensors

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Grade Sensor
Measures the vertical distance (elevation) from a reference point (e.g., stringline, previous pass) to the machine.

Material: Aluminum/Stainless Steel housing, electronic sensors
Slope Sensor (Tilt Sensor)
Measures the machine's cross-slope or tilt angle relative to level.

Material: Aluminum housing, MEMS or pendulum-based sensor
Control Unit/Display
Processes sensor data, allows operator input of target values, and displays real-time grade/slope information.

Material: Plastic/steel enclosure, electronic components, display screen
Hydraulic Control Valves & Actuators
Receives signals from the control unit and adjusts hydraulic flow to cylinders that raise/lower the cutting drum or adjust the screed.

Material: Steel, brass, seals

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Grade and Slope Control.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Road Recycling Machine

View system integration details

Manufacturers of Grade and Slope Control

Manufacturer profiles associated with Grade and Slope Control.

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Frequently Asked Questions

What is the typical control accuracy of this system?

The control accuracy is ±0.1% deviation from setpoint, as listed in the directory. However, actual performance may vary by model and installation, so verify with the manufacturer.

What communication interfaces are available?

The standard interface is CANopen (CiA 301), with optional Profibus DP. Confirm availability for your specific configuration with the supplier.

What is the operating temperature range?

The operating temperature range is -20 to 60 °C. Outside this range, sensor accuracy may be affected. Always check the manufacturer's specifications for your application.

Is the system protected against dust and water?

The ingress protection rating is IP65–IP67, meaning it is dust-tight and protected against water jets. However, verify the exact rating for your model, as it may vary.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Max 10 bar hydraulic system pressure
flow rate:	0-100 mm/s grade adjustment speed
temperature:	-20°C to 50°C operational, -40°C to 70°C storage
slurry concentration:	Compatible with 0-40% solids content in recycled material

Grade and Slope Control

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards