In mine coal production, traditional fixed stackers are limited by single-direction stacking, achieving only 600-800 tons per hour. This cannot match modern mining rates exceeding 1,000 tons per hour, forcing coal into temporary stockyards and increasing transport costs by 30%. Irregular terrain in mining areas leaves roughly 30% of available land idle under fixed-path equipment, while expanding stockyards faces high acquisition costs and lengthy approval cycles. Dust emissions during open stacking reach 25mg/m³ — far exceeding the 10mg/m³ limit in most regions — resulting in coal loss rates up to 5%. Equipment noise at ≥65dB also triggers community complaints. ZOOMRY's telescopic stacker solution directly addresses these three pain points through flexible, high-capacity, enclosed stacking technology.

Bulk Material Conveying Solution Centered on ZR-SF Telescopic Stacker

Targeting mine coal stacking scenarios, ZOOMRY proposes an integrated solution with the ZR-SF series telescopic stacker as the core, supplemented by belt conveyors and unloading equipment, building a closed-loop system of receiving, conveying, and stacking.

ZR140SF Telescopic Stacker

Selected as the core stacking equipment for the mine's 1,000 tons per hour requirement, the ZR140SF model features a belt width of 1400mm, rated stacking capacity of 2,100m³/h, and belt speed of 3.15m/s. It offers ±120° radial rotation, a 10-20m telescopic stroke, and a maximum stacking height of 20m. Through rotational coverage combined with telescopic adjustment, site utilization can increase from 70% to over 95%, with a stacking capacity of 125,000m³ — meeting more than 30 days of inventory demand.

The ZR140SF adopts an 8-super-solid tire chassis with a hydraulic lifting system, capable of self-adapting to 2° natural slopes. Combined with optional anti-slip tracks, it solves movement problems on muddy sites during rainy seasons. A level detector linked to a hydraulic telescopic device at the discharge hopper automatically adjusts the discharge distance (0.5-3m range) based on pile height, reducing both dust from height differential and material breakage. The Conveyor Belt is specified with high-abrasion-resistant covers to handle coal's abrasive characteristics over extended operation.

Auxiliary System Configuration

The supporting equipment uses ZOOMRY's integrated design to ensure system synergy. The 1400mm wide belt conveyor transports coal from the unloading point to the stacker, using 40Cr forged rollers (diameter 159mm) and quiet idlers, with operational noise ≤45dB and energy efficiency 10% better than industry average. The ZRLS-TU1400 wheeled truck unloader serves as front-end receiving equipment, equipped with hydraulic adjustable ramps and rubber skirt seals, achieving 800 tons per hour unloading efficiency while reducing dust during the unloading process.

The environmental protection system uses three-level control: a passive dust collector outside the discharge hopper controls emissions below 8mg/m³; a fully enclosed dust suppression cover on the cantilever section prevents dust during conveying; material baffles on the base prevent secondary pollution from material piles submerging the equipment.

Control and Maintenance System

A PLC+HMI control system supports multiple language interfaces, presenting core parameters — stacking height, telescopic length, and equipment status — visually. Built-in presets for multiple stacking modes (herringbone, circular) balance automated efficiency with manual fine-tuning for special conditions. The modular structure allows quick detachment of key components such as idlers and hydraulic parts. Combined with a remote diagnostic interface, fault diagnosis time is reduced to under 2 hours.

Technical Advantages

With the ZR-SF telescopic stacker conveyor, the ZR140SF's high-capacity design increases stacking efficiency by 50%. Eliminating the temporary transfer link saves approximately $50,000 in monthly transfer costs. Full-site coverage through 3D movement eliminates the need for additional land acquisition, saving over 2 million yuan in land costs per project. Passive dust collection combined with intelligent discharge controls dust emissions below 8mg/m³ and noise within 55dB — reducing coal loss from 5% to 1.2%. Based on an annual output of 1.5 million tons, this reduces loss by 17,000 tons and increases annual revenue by over $2 million.

In terms of comprehensive costs, project investment is only 60-70% of fixed stackers with equivalent capacity. Equipment energy consumption is 40% lower than loader stacking; modular transport saves 30% in logistics costs; core component service life — rollers and idlers — exceeds 50,000 hours, reducing maintenance frequency. For small and medium-sized mines, a phased construction approach with core equipment plus basic supporting facilities can further reduce initial investment pressure.

ZOOMRY Service Guarantee

ZOOMRY provides full-cycle support from solution design to lifelong operation and maintenance. All equipment holds ISO 9001 certification and international approvals including CE, EAC, and KCS. Core parameters have passed third-party energy efficiency testing with 20 years of R&D experience in bulk material conveying equipment, verified across 500+ global mine projects with mature adaptations for special conditions including high temperature and heavy rain.

Spare parts warehouses in major mineral resource countries provide ≤48-hour response for common components. A 15-day customized training covers equipment operation, daily maintenance, and emergency handling — ensuring the mine team's independent operation capability. ZOOMRY offers a 5-year warranty with lifelong technical support, including one free comprehensive inspection per year using vibration detection and oil analysis to identify potential issues before they cause downtime.

This solution is particularly suitable for small and medium-sized mines with annual output of 1-3 million tons. Its core value lies in breaking traditional stacking equipment limitations through flexible adaptation — retaining loader site adaptability while achieving the efficiency and height advantages of large stackers. Actual data shows stacking efficiency reaching 1,200 tons per hour, site utilization at 98%, dust emissions ≤8mg/m³, noise ≤55dB, and comprehensive operating costs reduced by 25-30%. Unlike resellers who cannot modify standard designs, ZOOMRY manufactures all core stacker components — from drive pulleys and telescopic booms to complete conveyor systems — in our 40,000m² production facility, enabling the custom engineering that mine-specific conditions demand. View ZOOMRY's telescopic stacker EPC project cases to see proven results from mining operations worldwide.

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