Grade Control System for Asphalt Pavers | Specifications & Verification

Product Specifications

Technical details and manufacturing context for Grade Control System

Definition

The Grade Control System is a component of asphalt pavers that automatically maintains the desired grade and slope of the asphalt mat being laid. It uses sensors and control mechanisms to adjust the screed's position in real-time, ensuring consistent pavement thickness and smoothness according to design specifications. The system typically employs laser, sonic, or GPS sensors to measure the distance to a reference surface. These measurements are processed by a control unit that compares actual elevation to target grade. Based on this comparison, the system sends signals to hydraulic or mechanical actuators that adjust the screed's height and angle, maintaining the desired pavement profile throughout the paving operation. Key parameters include control accuracy of ±2 mm, slope range of -10% to +10%, response time of ≤0.5 s, supply voltage of 24 V DC ±10%, power consumption ≤120 W, operating temperature -20 to +60 °C, ingress protection IP65 (per IEC 60529), sensor type MEMS accelerometer, material aluminum housing with stainless steel fasteners, weight ≤15 kg, and communication interface CAN bus 2.0B (per ISO 11898). The system is designed for integration with paver control systems. When selecting or verifying a Grade Control System, confirm model-specific values and standards with the legal manufacturer or supplier. The listed standards serve as procurement references, not proof of certification or compliance. The system's performance depends on proper installation, calibration, and maintenance. Regular checks of sensor alignment, actuator response, and electrical connections are recommended. Failure to maintain the system can lead to inaccurate grade and slope, resulting in pavement defects. The system is not a standalone product; it requires integration with the paver's control architecture. Always consult the manufacturer's documentation for specific installation and operational guidelines.

Working Principle

The system uses sensors (laser, sonic, or GPS) to measure distance to a reference surface. A control unit compares actual elevation to target grade and sends signals to hydraulic or mechanical actuators. These actuators adjust the screed's height and angle in real-time, maintaining the desired pavement profile. The control loop operates continuously, with response time ≤0.5 s to achieve 90% of set value. The system can adjust slope within -10% to +10% and maintains vertical accuracy of ±2 mm. Power is supplied at 24 V DC ±10%, with total consumption ≤120 W. The system communicates via CAN bus 2.0B for integration with paver controls.

Common Materials

Electronic components, Aluminum/steel housing, Sensor materials

Technical Parameters

Parameter	Typical range	Notes & selection driver
Control Accuracy	±2 mm	Vertical deviation from set grade
Slope Range	-10% to +10 %	Cross-slope adjustment capability
Response Time	≤ 0.5 s	Time to reach 90% of set value
Supply Voltage	24 V DC ±10% V DC	Standard for mobile machinery
Power Consumption	≤ 120 W	Total system power
Operating Temperature	-20–+60 °C	Extended range available
Ingress Protection	IP65	Dust-tight and protected against water jetsIEC 60529
Sensor Type	MEMS accelerometer	For slope measurement
Material	Aluminum housing, stainless steel fasteners	Corrosion resistant
Weight	≤ 15 kg	Complete system
Communication Interface	CAN bus 2.0B	For integration with paver controlISO 11898

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 distance to reference surface to determine current elevation

Material: Aluminum housing with optical/electronic components
Control Unit
Processes sensor data and calculates required adjustments

Material: Electronic circuit boards in protective casing
Actuator Assembly
Physically adjusts screed position based on control signals

Material: Steel with hydraulic/pneumatic components
Display/Interface Unit
Allows operator to input grade parameters and monitor system status

Material: Plastic/glass with electronic components

Industry Taxonomies & Aliases

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

Applied To / Applications

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

Asphalt Paver

View system integration details

Manufacturers of Grade Control System

Manufacturer profiles associated with Grade Control System.

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Frequently Asked Questions

How accurate is the grade control?

The control accuracy is ±2 mm vertical deviation from set grade. This is a reference value; actual performance may vary based on installation and operating conditions. Verify with the supplier.

What communication interface does the system use?

The system uses CAN bus 2.0B per ISO 11898 for integration with paver control. Ensure your paver's control system is compatible.

What is the ingress protection rating?

The system has an IP65 rating per IEC 60529, meaning it is dust-tight and protected against water jets. This is a reference; confirm the rating for your specific configuration.

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 pressure
other spec:	Flow Rate: 5-30 L/min hydraulic fluid, Slurry Concentration: N/A (mechanical/electronic system)
temperature:	-20°C to 50°C (operating), -40°C to 70°C (storage)

Grade Control System

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards