Radial Stacker Components Guide - Structural Design & Parts Overview

A radial stacker is an essential piece of bulk material handling equipment designed to create conical or kidney-shaped stockpiles with maximum efficiency and minimal material degradation. Understanding the key structural components of a radial stacker is crucial for proper selection, operation, and maintenance. ZOOMRY's radial stacking conveyors and tracked radial stackers are engineered with robust structural components to ensure reliable performance in demanding mining, quarrying, and port applications.

Key Structural Components of a Radial Stacker

1. Fabricated Truss (Main Support Structure)

The fabricated truss is the major structural element that supports the conveyor and material load. Engineered to withstand snow, wind, and other environmental loads, the truss design ensures stability and longevity in outdoor operations. ZOOMRY's steel structure expertise ensures that every truss is designed to meet rigorous engineering standards for safety and durability.

2. Radial Undercarriage

The conveyor's radial undercarriage enables the radial stacker to pivot around its tail end, creating fan-shaped stockpiles. This feature maximizes storage capacity while minimizing the need to relocate the entire machine. Wheel-mounted radial stackers offer additional mobility for multi-stockpile operations.

3. Belt-Supporting Idlers

Conveyor idlers are installed on the frame to support the Conveyor Belt and the material being transported. Proper idler selection and spacing are critical for maintaining belt alignment, reducing friction, and extending the service life of both the belt and the idlers. ZOOMRY offers a complete range of conveyor components including carrying idlers, return idlers, and impact idlers for radial stacker applications.

4. Conveyor Belt Specifications

The exact dimensions and specifications of the conveyor belt are determined by the characteristics of the material being stacked — including bulk density, particle size, abrasiveness, and flowability. ZOOMRY provides customized belt conveyor solutions tailored to specific material handling requirements.

5. Head Section and Drive Unit

The head section is located near the discharge point, where material is released from the conveyor to form the stockpile. The drive unit is attached to the discharge pulley and positioned at the head, providing the power necessary to move the belt and material. Drive pulleys and conveyor components are engineered for reliability and energy efficiency.

6. Tail Section and Material Loading

The tail section serves as the material loading point, where bulk material is fed onto the conveyor belt. Skirting at the tail portion and underneath the truss protects against falling objects and minimizes spillage. Optional loading equipment includes hoppers positioned over the tail, transfer chutes, belt feeders, or overland conveyors — all of which can be engineered to fit specific site requirements.

Optional Radial Stacker System Components

ZOOMRY's radial stacking conveyor systems can be customized with a variety of optional components to meet specific operational needs:

Receiving Hoppers: Positioned over the tail section to receive material from trucks or loaders before belt loading.
Transfer Chutes: For direct material loading from existing conveyor systems.
Belt Feeders: For controlled material feeding onto the radial stacker conveyor.
Overland Conveyor Integration: Connecting radial stackers to longer conveying systems for complete material handling solutions.

View ZOOMRY's EPC project cases to see how we integrate radial stackers into complete bulk material handling systems.