Screed Plate: Width 2.5m to 16m, Thickness 15mm to 40mm

Component Specifications

Definition

The screed plate is a flat, heated metal plate mounted at the rear of an asphalt paver that spreads, levels, and provides initial compaction to asphalt material. It adjusts for thickness and crown, uses vibration or oscillation for density, and maintains temperature to prevent material sticking, ensuring uniform pavement surface quality.

Working Principle

The screed plate operates by floating on the asphalt mat, using its weight and adjustable angle to control thickness. It applies vibration or oscillation to compact the material, while heating elements maintain optimal temperature for workability and adhesion prevention, resulting in a smooth, dense pavement layer.

Materials

Typically made from high-strength, wear-resistant steel (e.g., AR400 or Hardox) with heat-treated surfaces. May include nickel or chromium coatings for durability. Heating elements are embedded or attached, using electric or propane systems.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	2.5m to 16m
Weight	200 kg to 2000 kg
Thickness	15mm to 40mm
Compaction Force	Up to 30 kN/m
Operating Temperature	120°C to 160°C

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

Standards

ISO 15642, DIN EN 500-1

Parent Products

This component is used in the following industrial products

Screed

A critical component of an asphalt paver that levels, compacts, and finishes the asphalt mat to specified thickness and smoothness.

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Engineering Analysis

Risks & Mitigation

Material sticking due to inadequate heating
Wear from abrasive asphalt
Thermal stress cracking
Improper leveling leading to uneven pavement

FMEA Triads

Trigger: Insufficient heating or temperature control
Failure: Asphalt adheres to plate, causing surface tearing
Mitigation: Regular calibration of heating systems and use of temperature sensors

Trigger: Abrasive wear from aggregate
Failure: Reduced plate thickness and compromised leveling accuracy
Mitigation: Use wear-resistant materials and apply protective coatings

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±3mm for thickness, ±5mm for levelness over 3m

Test Method

ASTM E1155 for flatness, ISO 15642 for performance

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Screed Plate

Manufacturer profiles associated with Screed Plate.

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Frequently Asked Questions

What is the purpose of heating the screed plate?

Heating prevents asphalt from sticking to the plate, ensures smooth material flow, and maintains workability for consistent pavement quality.

How does the screed plate adjust for pavement thickness?

It uses hydraulic or mechanical systems to change the angle of attack, allowing precise control over asphalt mat thickness from 20mm to 300mm.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Screed Plate