| Product name | Telescopic Stacker |
| Material | High Quality Carbon Steel |
| Belt width | 800mm - 1600mm; Customer |
| Max Capacity | 450-3500m³/h(Customer |
| Certification | ISO9001; CE; ISO14001; EAC; KCS |
| Advantages | Portable, rotatable, inclination adjustable, conveying length retractable, radial movement |
| Application | Mining, Port, Cement, Steel, Metallurgy, Electric Power, Coal, Machinery and Other Industries. |
The ZR120SF Stacker Conveyor is ZOOMRY's core model focused on heavy-duty bulk material stockpiling. Equipped with a 1200mm-wide belt, it achieves a high throughput of 1500 tph (tonnes per hour) at a belt speed of 3.15 m/s. Relying on a heavy-duty load-resistant structural design, combined with a 10-20m telescopic boom, as well as radial rotation and luffing lifting functions, it can stably control the entire stockpiling process of heavy bulk materials such as iron ore and large limestone blocks, fundamentally reducing material loss and operational risks. The equipment is equipped with a 630L hydraulic oil tank to ensure stable operation, supports remote control for enhanced operational convenience, and is suitable for transportation via 40-foot high cube (HQ) containers. After pre-assembly, on-site installation is quick, and it holds international certifications including CE and EAC, making it a reliable choice for scenarios such as large-scale mining stockyards and heavy-duty bulk cargo berths in ports.
The ZR120SF Stacker Conveyor is equipped with an enhanced hydraulically driven radial rotation system, adopting a dual hydraulic motor linkage design. It enables 360° full-range stockpiling, maintains an operational advantage of a maximum steering angle of 110°, and the stability of the machine body during rotation is 40% higher than that of ordinary models. In large-scale mining stockyards, when facing the demand for stockpiling thousands of tonnes of iron ore per batch, there is no need to frequently move the main body of the equipment; material distribution across multiple areas can be completed solely through radial rotation. Taking a single unit as an example, it can cover an operating area with a diameter of 55 meters, reducing equipment investment by 35% compared to the traditional solution of combining multiple light-duty stackers, while avoiding the complex process of coordinated scheduling between devices. This design not only improves site utilization but also addresses the issues of "large single-transport weight and strong impact from equipment start-stop" during heavy bulk material stockpiling. The failure rate of the rotation system is less than 0.2% per year, far superior to the industry average.
The telescopic boom is welded from Q355B high-strength alloy steel, with key stress-bearing parts reinforced by additional thickened steel plates. It has a standard telescopic range of 10-20m, fully adapting to the needs of "short-distance concentrated stockpiling" and "long-distance dispersed material spreading" for heavy bulk materials. When handling high-batch heavy bulk materials, extending the telescopic boom to 20m enables continuous spreading of "long strip-shaped high-density material piles", with the hourly stockpiling area 25% larger than that of ordinary heavy-duty equipment. If temporary emergency stockpiling of heavy bulk materials is required, retracting it to 10m can reduce the idle distance of the belt, lowering unnecessary energy consumption by 15%. At the same time, the telescopic system is equipped with ZOOMRY's self-developed "heavy-duty guided" cable sliding device. Aiming at the characteristics of high dust and strong vibration in heavy bulk material operation environments, it adopts a dust-proof sealed structure and anti-vibration brackets, reducing cable wear rate by 60% and extending its service life to over 8 years, thus reducing maintenance frequency in heavy-duty operation scenarios.
The luffing mechanism adopts a four-hydraulic-cylinder synchronous drive design, with a maximum stockpiling height of 20m. Targeting the characteristic of "large falling impact" of heavy bulk materials, it is equipped with a "graded buffer" control logic. When stockpiling heavy bulk materials such as iron ore (with a single block weight up to 50kg), the falling height can be accurately controlled within 1.0m. Buffer-type material dropping reduces the impact on the belt and machine body, extending the belt service life by 50% compared to ordinary stackers. When stockpiling large limestone blocks, the luffing mechanism can automatically adjust the lifting speed, avoiding bottom-layer compaction caused by overly dense material accumulation (compaction rate controlled below 1.5%) and ensuring material fluidity during subsequent transportation. In addition, the luffing system and heavy-duty structure are designed in synergy; even under full-load stockpiling conditions, the machine body vibration amplitude can still be controlled within 3mm, significantly improving equipment stability during heavy-duty operations.
It is worth noting that the core of the ZR120SF's improved stockpiling efficiency lies in the "in-depth adaptation of heavy-duty structure and functions": the heavy-duty load-resistant body bears the impact of heavy bulk materials; the high belt speed and wide belt ensure a throughput of 1500 tph; the radial and telescopic functions expand the coverage range. The combination of these three factors increases the heavy bulk material stockpiling efficiency by 30% compared to traditional equipment, making it particularly suitable for global mining and port scenarios with "large-scale heavy bulk material handling and high operational intensity".
The drive system can optionally use heavy-duty gear motors from international first-tier brands such as SEW (Germany) and FLENDER (Germany). The output power is upgraded to 55kW (main conveyor) + 22kW (chassis). The motor rotor adopts high-strength silicon steel sheets, and the bearings are of heavy-duty type, which can stably support the continuous conveying demand of 1500 tph heavy bulk materials. The motor efficiency reaches over 97%, saving 12% more energy than ordinary heavy-duty motors. The hydraulic system adopts a heavy-duty customized solution, with a 630L oil tank capacity, which is 30% larger than that of ordinary models. It is also equipped with a triple high-precision filtration device (filtration precision of 10μm), maintaining hydraulic oil cleanliness at NAS Class 7, reducing the wear rate of hydraulic components by 55%, and the annual system failure rate is less than 0.2%, which can avoid large-scale production shutdowns caused by hydraulic system failures.
The equipment supports two core modes: PLC fully automatic control and remote control. Targeting the characteristics of "high operational intensity and strict safety requirements" for heavy bulk material operations, the control system has been specially optimized:
In emergency situations, the equipment can quickly switch to manual operation mode, and the manual control interface is equipped with a "heavy-load protection" button. When it detects that the machine body load exceeds the safety threshold, it will automatically restrict operational actions to ensure the controllability of heavy-duty operations.
In terms of safety design, targeting the characteristics of "high risk coefficient and large accident impact" in heavy bulk material stockpiling, the ZR120SF Stacker Conveyor has been equipped with multiple enhanced protections: In case of power failure, the hydraulic system automatically locks within 0.006 seconds, faster than the industry standard of 0.01 seconds. The locking mechanism is made of heavy-duty alloy material, which can withstand an instantaneous impact force of 50 tonnes, preventing the telescopic boom from suddenly falling due to bearing heavy bulk materials. The steel wire rope is equipped with a dual mechanical limit + real-time tension monitoring device; once abnormal tension or breakage is detected, it immediately locks the telescopic boom, triggers an audible and visual alarm, and cuts off the main drive power to prevent accident expansion. Heavy-duty anti-deviation switches are installed on both sides of the belt, adopting a thickened shell and dual trigger contact design; when the belt deviation exceeds ±30mm, it automatically shuts down, avoiding equipment damage and safety accidents caused by heavy bulk material spillage (single spillage loss can be controlled within 100kg).
The cleaning and maintenance design focuses on "wear resistance and easy operation": The head and tail of the equipment are each equipped with two sets of heavy-duty polyurethane (PU) cleaning scrapers. The scraper thickness is 20mm (12mm for ordinary models), with a cleaning rate of 99%, which can completely remove residual heavy bulk material debris (such as iron ore powder and limestone particles) on the belt surface, reducing belt wear. The scrapers adopt a "quick-release buckle" design, and individual replacement only takes 25 minutes, reducing maintenance time by 50% compared to ordinary models. In addition, key parts of the equipment (such as hydraulic cylinders and rotating bearings) are reserved with convenient maintenance ports and equipped with grease nozzles. Engineers can complete daily maintenance without disassembling complex structures, further reducing the maintenance difficulty of heavy-duty equipment.
Despite being a heavy-duty stockpiling equipment, the ZR120SF Stacker Conveyor still decomposes its core components into 4 standard units—"heavy-duty chassis module, telescopic boom module, hydraulic power pack module, and drive module"—through a scientific modular disassembly design. The size and weight of each unit are compatible with the transportation limits of 40-foot HQ containers (12.03m (L) × 2.35m (W) × 2.69m (H)). Among them, the heavy-duty chassis module adopts lightweight high-strength steel, with its weight controlled within 22 tonnes; the telescopic boom module realizes split transportation through a segmented design, eliminating the need to apply for over-width, over-height, or over-weight transportation permits. Compared to the traditional "bulk + special transportation" solution for heavy-duty equipment, cross-border logistics costs are reduced by 40%, and it can be transported by regular container ships, making it suitable for cross-border delivery needs of global heavy-duty projects.
Before leaving the factory, 85% of the equipment's pre-assembly work is completed. Key processes such as heavy-duty structural connection, hydraulic pipeline welding, and electrical wiring laying are all finished in the factory, and have undergone a 120-hour full-load heavy-duty test (simulating the continuous conveying scenario of 1500 tph heavy bulk materials) to ensure trouble-free on-site installation. On-site, only 3 core processes need to be completed: "docking of the telescopic boom and chassis, hydraulic system venting, and remote control system commissioning". ZOOMRY provides a list of special tools for heavy-duty equipment installation and a guidance manual; if customers require, engineers with over 10 years of experience in heavy-duty stacker equipment can be dispatched to supervise on-site installation and conduct special operator training simultaneously. According to historical project data, a skilled team can complete installation and commissioning in as fast as 12 days, and no more than 20 days at the slowest, which is a 43% reduction compared to the industry average installation cycle of 35 days for heavy-duty stacker equipment.
The ZR120SF Stacker Conveyor has obtained EU CE certification and undergone special tests for the safety requirements of heavy-duty machinery, including structural load-bearing strength, emergency braking performance, and electrical safety protection, enabling it to directly enter the European Economic Area (EEA) market. It has passed the EAC certification of the Eurasian Customs Union, meeting the environmental requirements of "low temperature, high dust, and heavy-duty operations" for mining in CIS countries; all technical documents are provided in Russian to facilitate local regulatory review. In addition, the equipment fully complies with the ISO 9001 Quality Management System and ISO 14001 Environmental Management System, with full traceability throughout the production process. From the material testing of heavy-duty structural steel (ensuring yield strength ≥ 355MPa) to the tightness testing of the hydraulic system (withstanding 25MPa pressure without leakage), each process has detailed quality records to ensure consistency in mass production.
The quality control of core components is aligned with heavy-duty operation standards: The idlers adopt ZOOMRY's self-developed heavy-duty wear-resistant model, with the roller body made of 20# seamless steel pipe, radial runout ≤ 0.4mm (better than China's GB standard of 0.5mm), rotational resistance ≤ 2.2N (better than the GB standard of ≤ 3N), and the bearings are heavy-duty deep groove ball bearings with a service life exceeding 50,000 hours. The roller shaft is made of 40Cr forged parts (diameter ≥ 190mm), with a shell thickness of 16mm (12mm for ordinary models). After CNC four-roll rounding processing, the ovality is < 1.5mm; after welding, it undergoes dual testing of ultrasonic testing (UT) and magnetic particle testing (MT) to eliminate internal stress and ensure no deformation when bearing heavy bulk materials for a long time. ZOOMRY's self-built quality testing center (including a heavy-duty structural mechanics laboratory and a hydraulic system high-pressure testing laboratory) is equipped with more than 60 professional devices. Each ZR120SF Stacker Conveyor must pass 18 strict tests before leaving the factory, such as "1500 tph heavy bulk material continuous conveying test", "-35℃ low-temperature start-up test", and "72-hour dust environment stability test", to ensure its performance is fully compatible with heavy-duty operation requirements.
In the scenario of large-scale mining stockyards, the equipment is mainly used for stockpiling heavy bulk materials such as iron ore, large limestone blocks, and coal. Targeting the characteristics of mining—"daily mining volume reaching 10,000-tonne level and large single-block weight of materials"—the 1200mm-wide belt and 3.15m/s belt speed can stably receive materials from the front-end heavy-duty belt conveyor, and the 1500 tph throughput can avoid material accumulation and blockage. The 10-20m telescopic boom length can flexibly adapt to the stockpiling needs of different areas in the stockyard; combined with the 20m stockpiling height design, it can maximize the use of the vertical space of the stockyard, reducing the site occupation area by 55% compared to traditional 8m stockpiling equipment. The heavy-duty load-resistant structure can withstand long-term material stacking pressure and frequent impacts, with an annual equipment failure rate of less than 0.5%, significantly reducing mining production shutdown losses.
In the scenario of heavy-duty bulk cargo berths in ports, the equipment can handle heavy bulk materials (such as iron ore and nickel ore) after ship unloading, adapting to berths that can accommodate Handymax (35,000-50,000 DWT) and Panamax (60,000-80,000 DWT) ship types. Targeting the characteristics of ports—"high ship unloading efficiency and large heavy bulk material batches"—the 1500 tph throughput can match the operation rhythm of ship unloaders, avoiding ship unloader waiting due to slow stockpiling. The remote control function allows operators to complete operations in the port control room or a safe area, avoiding exposure to the port's strong wind and high dust environment. At the same time, the equipment is treated with an anti-corrosion coating, which can adapt to the port's high salt spray environment, extending its service life to over 10 years and reducing the replacement cost of heavy-duty port equipment.
| Item | Specification |
|---|---|
| Model | ZR120SF |
| Equipment Type | Heavy-Duty Stockpiling Equipment (Radial Telescopic Stacker) |
| Belt Width (mm) | 1200 |
| Handling Capacity (tph) | 1500 |
| Belt Speed (m/s) | 3.15 |
| Telescopic Boom Length (m) | 10-20 |
| Maximum Stockpiling Height (m) | 20 |
| Radial Rotation Angle (°) | 0-360 (Maximum Steering Angle: 110°) |
| Hydraulic Oil Tank Capacity (L) | 630 |
| Main Drive Power (kW) | 55 (Main Conveyor) + 22 (Chassis) |
| Hydraulic System Working Pressure (MPa) | 22-25 (Adapted to Heavy-Duty Operation Needs) |
| Equipment Weight (t) | Approximately 78 (Excluding Optional Accessories) |
| Protection Class | IP54 (Rainproof and Dustproof for Outdoor Use) |
| Applicable Ambient Temperature (℃) | -35~60 (Withstands Extreme Climates) |
| Structural Material | Main Structure: Q355B High-Strength Alloy Steel |
| Optional Configurations | Heavy-Duty Tracked Tail, Fog Cannon Dust Suppression Device, Belt Tension Detection System, Anti-Freeze Heating System |
By choosing the ZR120SF Stacker Conveyor, global customers can obtain significant value from three dimensions: "equipment investment, operating costs, and revenue cycle". At the equipment level, the heavy-duty structural design extends the equipment's service life to over 10 years (7 years for ordinary heavy-duty equipment), reducing equipment replacement frequency and lowering long-term investment. At the operating level, the high throughput of 1500 tph can reduce the number of heavy bulk material transfers (e.g., mining stockyards can reduce the use of dump trucks by 30%); automatic control replaces 5-6 operators; the low-failure design controls annual downtime within 25 hours, reducing production shutdown losses by 50% compared to the industry average of 50 hours. At the revenue level, quick installation and commissioning in 12-20 days shortens the cycle by 66% compared to the industry average of 35 days.
In response to the service needs of global heavy-duty bulk material projects, ZOOMRY has established a comprehensive support system of "heavy-duty technology + on-site service + spare parts": It provides multi-language dedicated technical documents for heavy-duty equipment (including heavy-duty structural maintenance guides, heavy bulk material operation specifications, and troubleshooting manuals), 24/7 online technical consultation, with an engineer response time of no more than 3 hours. The assigned engineers all have more than 5 years of service experience in heavy-duty stacker equipment, enabling them to accurately solve technical problems in heavy-duty operations. For key projects, engineers can be dispatched to the site to conduct "heavy-duty equipment installation guidance + special operator training" (7-day training duration, covering safe operation, emergency handling, and daily maintenance of heavy-duty equipment) to ensure that the customer's team fully masters the equipment operation skills. Key spare parts such as hydraulic cylinders, heavy-duty idlers, and drive motors are stocked, with a delivery cycle of no more than 5 days, significantly shortening the maintenance waiting time of heavy-duty equipment and ensuring the long-term stable operation of global heavy-duty projects.
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