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Composite Spring Vibrating Screen

Updated: 2026-07-15

Overview

The composite spring vibrating screen is a robust industrial screening machine designed to handle abrasive and high-volume materials. Unlike traditional metal springs, its composite springs combine rubber and steel layers, offering superior shock absorption and longevity. Widely used in mining and construction, it excels in separating materials like coal, ores, and recycled aggregates into precise size fractions. The design minimizes energy consumption while maximizing throughput, making it a cost-effective solution for continuous operations. Its modular construction allows customization for specific applications, from fine powders to large chunks.

Structure and Working Principle

The vibrating screen comprises a steel frame, screening deck(s), vibratory motor(s), and composite springs. The motor generates centrifugal force, causing the deck to oscillate. Composite springs—typically layered rubber and steel—absorb vibrations, reducing stress on the frame and foundation. Material fed onto the screen deck is stratified by size; finer particles pass through the mesh, while larger ones travel to the discharge end. Adjustable vibration amplitude and frequency optimize separation efficiency for diverse materials.

Key Features

Composite springs provide 30–50% better vibration damping than steel springs, prolonging equipment life. The screens operate at 70–75 dB, significantly quieter than conventional models. Polyurethane or stainless steel meshes resist wear and clogging, with lifespans up to 3 times longer than wire mesh. Other advantages include reduced maintenance (no lubrication needed for springs) and adaptability to wet or dry screening. Some models feature multi-deck designs for simultaneous grading into 2–5 size fractions.

Application Areas

Primary applications include coal preparation plants (removing impurities), quarrying (sorting crushed stone), and metal mining (ore classification). In recycling, it separates construction waste or municipal solid waste into reusable components. The chemical industry uses it for pellet sizing, while agriculture employs it for seed cleaning. Food processing applications—such as sugar or salt grading—require stainless steel construction to meet hygiene standards.

Maintenance and Precautions

Monthly inspections should check for spring fatigue, mesh tears, and motor alignment. Replace composite springs if cracks or permanent deformation exceed 10% of original height. Clean mesh openings regularly to prevent blinding (material clogging). Avoid abrupt starts/stops to prevent spring damage. For corrosive environments, opt for stainless steel components. Always balance the screen’s load distribution to prevent uneven wear.

B2B Procurement Guide

When sourcing, specify material type (e.g., abrasion-resistant rubber for springs), deck count (single/multi-layer), and mesh aperture sizes. Verify motor power (typically 1.5–30 kW) matches your capacity needs—1–500 tons/hour throughput is common. Leading manufacturers include Derrick Corporation and Metso Outotec; Chinese suppliers like Xinxiang Gaofu offer cost-effective options. Request vibration frequency (700–3,600 RPM) and amplitude (2–10 mm) data. For reference, a mid-sized 2-deck screen costs ~$20,000.

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