Vibrating Grizzly Feeder

Product Specifications

Technical details and manufacturing context for Vibrating Grizzly Feeder

Definition

The Vibrating Grizzly Feeder is a component used in concrete crushing machines. It combines a vibrating feeder with a series of grizzly bars to perform two functions: separating fine material from the feed stream and uniformly feeding larger material to the primary crusher. The feeder uses an eccentric shaft or electromagnetic drive to generate vibration, which moves material forward along the deck. As material travels, fines smaller than the grizzly bar spacing fall through the gaps, while oversized material continues to the crusher. This process improves crushing efficiency by removing fines that would otherwise consume crusher capacity, and it protects downstream equipment from potential damage caused by undersized material. The feeder is typically constructed with high-strength steel and abrasion-resistant steel plates, and it uses rubber springs to isolate vibration. Key parameters include feed capacity (100–600 t/h), grizzly bar spacing (25–150 mm), vibration frequency (600–1000 rpm), amplitude (2–8 mm), motor power (5.5–30 kW), voltage (380 V per IEC 60038), operating temperature (-20 to 40 °C), ingress protection (IP54–IP65 per IEC 60529), grizzly bar material (Mn13–Mn18 per GB/T 5680), overall dimensions (2000–6000 × 1000–2500 × 1000–2000 mm), and weight (3–20 t). These values are reference ranges and must be verified for the specific model and application. The feeder is designed for integration into crushing plants, and its performance depends on material density, grizzly spacing, and vibration settings. Regular maintenance includes checking for wear on grizzly bars and springs, and monitoring vibration amplitude and frequency. Failure to maintain proper settings can lead to reduced separation efficiency or mechanical damage. Always consult the legal manufacturer or supplier to confirm model-specific values and standards.

Working Principle

The Vibrating Grizzly Feeder operates by generating vibration through an eccentric shaft or electromagnetic drive. This vibration causes material to move forward along the deck. The deck is equipped with grizzly bars spaced at a set distance. As material travels, fine particles smaller than the spacing fall through the gaps, while larger material continues to the crusher. The vibration frequency and amplitude are adjustable, allowing control of the feed rate and separation efficiency. The feeder uses rubber springs to dampen vibration and reduce structural stress.

Common Materials

High-strength steel, Abrasion-resistant steel plates, Rubber springs

Technical Parameters

Parameter	Typical range	Notes & selection driver
Feed Capacity	100–600 t/h	Depends on material density and grizzly spacing
Grizzly Bar Spacing	25–150 mm	Determines separation size
Vibration Frequency	600–1000 rpm	Adjustable for material flow
Amplitude	2–8 mm	Higher amplitude for larger material
Motor Power	5.5–30 kW	Depends on feeder size and capacity
Voltage	380 V	Other voltages available on requestIEC 60038
Operating Temperature	-20–40 °C	Outside range may affect performance
Ingress Protection	IP54–IP65	For outdoor or dusty environmentsIEC 60529
Material of Grizzly Bars	Mn13–Mn18	High manganese steel for wear resistanceGB/T 5680
Overall Dimensions (L×W×H)	2000–6000×1000–2500×1000–2000 mm	Varies with model
Weight	3–20 t	Depends on size and configuration

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

Vibrating Deck
Carries and transports material through vibration

Material: Abrasion-resistant steel
Grizzly Bars Part
Separates fine material from coarse feed

Material: High-carbon steel
Eccentric Shaft Assembly
Generates vibration through eccentric rotation

Material: Alloy steel
Spring Support System
Isolates vibration from supporting structure

Material: Rubber or steel springs
Electromagnetic Drive Optional
Excites the deck electromagnetically instead of by an eccentric shaft.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Vibrating Grizzly Feeder.

Applied To / Applications

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

Concrete Crushing Machine

View system integration details

Manufacturers of Vibrating Grizzly Feeder

Manufacturer profiles associated with Vibrating Grizzly Feeder.

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Frequently Asked Questions

What is the purpose of the grizzly bars?

The grizzly bars are spaced to allow fine material to fall through while retaining larger material. This separates the feed stream, preventing fines from entering the crusher and improving efficiency.

How is the feed rate controlled?

The feed rate is controlled by adjusting the vibration frequency and amplitude. Higher frequency or amplitude increases the speed at which material moves along the deck, thus increasing the feed rate.

What maintenance is required?

Regularly inspect the grizzly bars for wear and replace them when necessary. Check rubber springs for cracks or loss of elasticity. Monitor vibration amplitude and frequency to ensure they remain within the specified range.

Can the feeder handle wet or sticky material?

The feeder is designed for typical aggregate materials. Wet or sticky material may cause clogging or reduced separation efficiency. Consult the manufacturer for specific recommendations for such applications.

Data Basis

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

Preliminary Technical Classification

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pressure:	Atmospheric
temperature:	-20°C to 80°C
max feed rate:	Up to 2000 TPH
max feed size:	Up to 1500 mm
slurry concentration:	Not recommended for slurry applications

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards