Belt Arrestor

ZOOMRY Belt Arrestor is a core safety protection device tailor-made for belt conveyors. Leveraging ZOOMRY's years of technical accumulation in the bulk material conveying field, this product takes full-belt bidirectional arrest as the core, integrating mechanical and hydraulic dual-trigger technology. It can respond in milliseconds to sudden failures such as belt breakage and severe slipping, accurately locking the out-of-control belt and fundamentally avoiding material falling, equipment damage, and personnel casualties. Whether it is a high-inclination conveying line in mines, a belt conveyor supporting large port ship loaders, a coal conveying system in power plants, or an aggregate conveying line in building materials factories, ZOOMRY Belt Arrestor can provide stable and reliable safety protection. It is also compatible with various domestic and foreign belt conveyors and ZOOMRY's own main equipment (such as Belt Conveyors, Bucket Wheel Stacker-Reclaimers, Telescopic Stackers), making it the preferred safety choice for bulk material conveying equipment worldwide.

Essential Safety Accessory for Bulk Material Conveying

In the bulk material conveying field, during the long-term operation of belt conveyors, affected by factors such as material impact, belt aging, and overload operation, the belt is highly likely to experience failures such as breakage and severe slipping. Once a belt breakage accident occurs, especially for upward or downward conveying belt conveyors with an inclination angle exceeding 15°, the out-of-control belt will slide down at high speed with a large amount of materials. This not only may damage surrounding components such as idlers, rollers, and chutes, causing millions of equipment maintenance losses, but also poses a fatal threat to the life safety of on-site operators. At the same time, it leads to long-term shutdown of the production line and triggers chain production interruptions.

To address this industry pain point, ZOOMRY Belt Arrestor has perfectly solved the problems of traditional protective equipment such as slow response, incomplete arrest, and easy belt damage by optimizing the trigger mechanism and arrest structure. The product's rated braking force ranges from 50 to 1500kN, suitable for various belt conveyors with a bandwidth of 650-2200mm, and the belt strength adaptation range is 800-4000N/mm, which can meet the full-scenario needs from light load to heavy load. Whether used with ZOOMRY's own idler sets and rollers or adapted to other brands of conveyors, it can achieve seamless connection, providing global customers with belt breakage protection solutions that meet international safety standards.

Technical Principle of Belt Arrestor

The core advantage of ZOOMRY Belt Arrestor stems from its deeply optimized technical architecture. From the trigger mechanism to the arrest structure, every design is centered around "safety, reliability, and efficiency". After mechanical simulation verification and thousands of field tests, it ensures stable operation even under extreme working conditions.

Dual-Mode Trigger Mechanism

The product innovatively adopts a dual-mode design of "pure mechanical + gravity-driven" and "mechanical + hydraulic-assisted", which can be flexibly adapted to different load scenarios. The light-load type (rated braking force 50-200kN) adopts pure mechanical gravity drive, without the need for external power supply, hydraulic stations and other auxiliary equipment. It is completely triggered by changes in belt tension and gravity sensing. Even in extreme environments such as underground mine environments without electricity, humid and salty port scenes, or low temperatures of -40℃, it can ensure trigger reliability, fundamentally avoiding failure problems caused by electromagnetic interference or power interruption.

The heavy-load type (rated braking force 800-1500kN) and general-purpose type (rated braking force 300-600kN) are equipped with hydraulic-assisted triggering, compressing the response time to 0.2-0.3 seconds, which is far higher than the industry average. The hydraulic system adopts an explosion-proof design, and together with tension monitoring sensors, it can real-time capture fault signals such as sudden drop in belt tension and abnormal speed, realizing the fully automated process of "monitoring-judgment-triggering". It ensures rapid blocking of risk diffusion in heavy-load scenarios with large conveying capacity and high belt speed.

Full-Belt Bidirectional Locking

Different from traditional single-side arrest equipment, ZOOMRY Belt Arrestor adopts a symmetrical wedge-shaped brake block structure to achieve full-belt bidirectional arrest. When the equipment is triggered, the brake blocks on both sides synchronously tighten towards the center of the belt, not only firmly locking the load-bearing section of the belt (to prevent material rollover and falling) but also fixing the return section of the belt (to avoid belt stacking and winding around the roller). The arrest coverage rate reaches 100%, completely eliminating the protection loophole of "one-side slip".

The brake block material is made of REACH-compliant polyurethane and rubber composite material, which has undergone special wear-resistant treatment. The anti-slip coefficient is ≥0.8, which can not only ensure sufficient braking friction but also avoid secondary damage such as scratches and tears to the belt surface, extending the service life of the belt. At the same time, the braking deceleration is strictly controlled at 0.2-0.5m/s², and the inertial impact force is absorbed through the buffer structure, avoiding equipment resonance or structural deformation caused by excessive braking force.

Easy Installation and Maintenance

The product frame is made of Q235B/Q355B high-strength section steel and alloy steel, and has passed ultrasonic flaw detection. The defects meet the JB/T4730.3 Level I standard, which can withstand the instantaneous impact force during heavy-load arrest. Two types of frames are available: fixed type and hanging type. The light-load type and general-purpose type support quick-installation fixture installation, without the need for fire work or drilling, and a single set can be deployed within 2 hours, which can be easily adapted to existing belt conveyors; the heavy-load type adopts bolt fixing + foundation reinforcement design to ensure installation stability in high-inclination and large-conveying-capacity scenarios.

In terms of protection performance, the product's protection level reaches IP65-IP67, and the corrosion resistance level meets the ISO 12944-6 C4-C5-M standard. Key components are subjected to double treatment of galvanizing + spray coating, which can resist erosion from harsh environments such as mine dust, port salt spray, and corrosive gases in building materials factories. The working temperature ranges from -40℃ to +60℃, adapting to the operation needs of different climate regions around the world.

Core Advantages of ZOOMRY Belt Arrestor

1. Sufficient safety redundancy and more reliable protection: The rated braking force reserves 20%-30% safety redundancy. Verified by mechanical simulation, even in extreme working conditions exceeding 1.5 times the design load, it can still achieve stable arrest. The applicable inclination angle range is -25°~+32°, covering upward, downward, and horizontal conveying scenarios. The installation spacing can be dynamically adjusted according to the inclination angle (10-80m for upward conveying / 30-150m for downward conveying), ensuring no protection blind spots when a belt breakage accident occurs.
2. Full-scenario adaptation and strong main engine coordination: As a core supporting component of ZOOMRY's bulk material conveying complete sets of equipment, the belt arrestor achieves perfect coordination with ZOOMRY's own belt conveyors, bucket wheel stacker-reclaimers, mobile ship loaders and other main engine products. The size interface is designed with standardization, and it can be quickly matched without additional modification. It is also compatible with other international brand conveyors, with a belt strength adaptation range of 800-4000N/mm, which can accurately match both steel cord belts and fabric core belts.
3. Global compliance certification and barrier-free market access: The product strictly follows domestic and foreign core standards such as China's NB/T 11464-2023, EU's EN 12895, and North America's ASTM D3794. It has passed multiple certifications such as CE, ATEX (for explosive environments), and MA (for coal mine use), fully meeting the access requirements of major global markets such as Europe, North America, and Southeast Asia, and no additional adaptation and modification are required for export.
4. Low maintenance cost and universal wearing parts: Wearing parts such as brake surface blocks and trigger mechanisms adopt a modular design, sharing the supply chain with ZOOMRY's existing components such as Conveyor Rollers and Belt Cleaners. They have strong versatility, and customers can quickly purchase and replace them without separately reserving special spare parts. The product design life is ≥10 years, requiring no daily maintenance, only regular appearance inspection and brake block wear detection. The long-term operation cost is 15%-20% lower than similar products.

Adaptation Scenarios of Belt Arrestor

Mining Industry

Mine conveying lines are mostly high-inclination (15°-32°) and large-conveying-capacity working conditions. The conveyed materials are heavy-load materials such as iron ore, coal, and copper ore. The belt is subject to large material impact and fast wear, with a high risk of belt breakage. ZOOMRY's heavy-load belt arrestor (800-1500kN) can quickly lock the belt at the moment of breakage by virtue of mechanical + hydraulic dual-trigger technology, avoiding tens of tons of materials falling and damaging roadway equipment or causing collapse accidents. To meet the explosion-proof requirements of underground coal mines, the product has passed ATEX and MA certifications, with a protection level of IP67, which can adapt to high-dust and humid environments. It works in coordination with ZOOMRY's own belt conveyors and scrapers to ensure continuous mine production.

Port Industry

Belt conveyors supporting mobile ship loaders and telescopic stackers in port bulk terminals have the characteristics of large bandwidth (1400-2200mm), high belt speed (4-6m/s), and complex operating environments (salt spray, humidity). Once a belt breakage occurs, it will not only cause materials such as coal and ore to fall into the ocean or terminal yards, resulting in environmental pollution and economic losses, but also may affect ship berthing operations. ZOOMRY's general-purpose and heavy-load belt arrestors adopt anti-corrosion coatings and IP65+ protection design, which can resist salt spray erosion. The full-belt bidirectional arrest design can avoid the stacking and winding of high-speed running belts around rollers. It is linked with the automatic control system of port conveying equipment to realize fault alarm and emergency shutdown linkage, ensuring safe and efficient terminal operations.

Power Industry

Belt conveyors in the coal conveying systems of thermal power plants and nuclear power plants need to operate continuously for 24 hours, conveying energy materials such as coal and biomass fuel. A belt breakage accident will directly lead to boiler feed interruption, triggering power generation suspension and causing huge economic losses. ZOOMRY's general-purpose belt arrestor (300-600kN) is suitable for the medium and low inclination (-15°~+20°) working conditions of power plant coal conveying systems. The pure mechanical + gravity-driven mode does not rely on external power supply, avoiding the risk of protection failure during power outages. The product is linked with the PLC control system of the power plant's coal conveying system. When triggered, it synchronously cuts off the conveyor power supply and sends a remote alarm, facilitating operation and maintenance personnel to quickly handle and reduce downtime, ensuring stable power supply.

Building Materials Industry

Aggregate conveying lines and cement clinker conveying systems in cement plants and mixing stations convey materials including sand and gravel aggregates, cement clinker, fly ash, etc. Some materials are corrosive or highly abrasive. ZOOMRY's light-load and general-purpose belt arrestors (50-600kN) can be flexibly adapted to different conveyed materials. For corrosive material scenarios, core components are made of anti-corrosion materials; for highly abrasive materials, the brake surface is made of alloy + rubber composite material to extend service life. The product is used with ZOOMRY's own hopper feeders and truck unloaders, suitable for belt conveyors with a bandwidth of 650-1800mm, ensuring the continuous safety of the building materials production process and avoiding production line stagnation caused by belt breakage accidents.

Scientific Selection Guide for Belt Arrestor

ZOOMRY Belt Arrestor provides three series: light-load, general-purpose, and heavy-load. The parameters cover a rated braking force of 50-1500kN and an applicable bandwidth of 650-2200mm, which can meet the protection needs of different scenarios. Scientific selection is the key to ensuring protection effect, which needs to be comprehensively judged based on the core parameters of the conveyor, working conditions, and adaptation requirements:

Interpretation of Core Parameter Values

• Rated braking force (50-1500kN): The light-load type (50-200kN) is suitable for small industrial conveying lines and closed belt conveyors in grain depots; the general-purpose type (300-600kN) is suitable for medium and large conveying lines in ports and power plants; the heavy-load type (800-1500kN) is suitable for high-inclination and heavy-load conveying scenarios in mines. The selection should be based on the total weight of the conveyor materials and the inclination angle as the core calculation basis to ensure sufficient safety redundancy.
• Applicable bandwidth (650-2200mm): It needs to be accurately matched with the actual bandwidth of the belt conveyor. Being wider or narrower than the belt width will affect the arrest effect. ZOOMRY can provide customized bandwidth adaptation services to meet the needs of special models.
• Trigger mode: For light-load and small-inclination scenarios, pure mechanical + gravity drive is preferred (low cost and easy maintenance); for heavy-load and high-speed scenarios, mechanical + hydraulic assistance is recommended (faster response and more stable arresting force).
• Working temperature (-40℃~+60℃): No additional modification is required for frigid regions. Heat dissipation structures can be matched for tropical high-temperature environments. Customized temperature adaptation schemes can be provided for special climate regions.

How to Select the Right Model

1. Clarify conveyor and material parameters: First, confirm the bandwidth, inclination angle, belt speed, and belt strength of the belt conveyor, as well as the type and weight per unit length of the conveyed materials. Use the mechanical calculation tool provided by ZOOMRY to determine the required minimum braking force, avoiding cost waste due to over-selection or insufficient protection effect due to under-selection. For example, for a mine belt conveyor with a high inclination angle (25°) and a bandwidth of 1600mm, it is recommended to select the heavy-load type (800-1500kN); for a grain depot belt conveyor with a bandwidth of 800mm and horizontal conveying, the light-load type (50-200kN) can meet the needs.
2. Adapt to working conditions and compliance requirements: For explosive environments such as underground mines and chemical industry, models with ATEX or MA certification should be selected; for ports and coastal areas, special attention should be paid to the corrosion resistance level (C5-M level is preferred); for export to European and American markets, the compliance with CE certification and EN 12895 standard should be confirmed to ensure the product meets the safety specifications of the target market.
3. Consider main engine matching and maintenance needs: If it is matched with ZOOMRY's own main engines such as belt conveyors and bucket wheel stacker-reclaimers, the corresponding adapted model can be directly selected without additional adjustments; if it is adapted to other brand main engines, parameters such as the belt conveyor frame size and installation space need to be provided to ensure installation compatibility. In terms of maintenance, for remote unattended scenarios, it is recommended to select models with intelligent diagnosis functions that can real-time monitor the wear status of brake blocks; for mobile belt conveyors that frequently transfer sites (such as supporting mobile ship loaders), lightweight and quick-installation frames are preferred.

International Compliance and Certification Guarantee

As a global supplier of bulk material conveying equipment, ZOOMRY Belt Arrestor has always taken international standards as the benchmark for R&D and production. Through comprehensive compliance certification and standard adaptation, it ensures the market access and safety reliability of products worldwide:

Comprehensive Coverage of Domestic and Foreign Core Standards

The product strictly follows China's NB/T 11464-2023 "Belt Conveyor Belt Breakage Arresting Device" industry standard, and is fully in line with international core standards such as EU's EN 12895 "Safety Requirements for Bulk Material Belt Conveyors", North America's ASTM D3794 "Conveyor Belt Safety Standard", and international ISO 5048 "General Belt Conveyor Standard". Parameter design and performance testing are carried out in accordance with the highest standards to ensure performance alignment with international similar products.

Complete Authoritative Certification Qualifications

To meet the needs of different markets and scenarios, the product has passed multiple authoritative certifications: EU CE certification (ensuring European market access), ATEX explosion-proof certification (suitable for explosive environments), China MA coal mine safety mark certification (adapted to underground coal mine scenarios). All certifications are issued by third-party authoritative institutions, and the certificates can be queried and verified worldwide, providing customers with reliable compliance guarantees.

Strict Quality Control System

ZOOMRY has established a production control process in line with the ISO 9001 quality system. The core components (frame, brake block, trigger mechanism) of the belt arrestor are made of high-quality materials, and undergo multiple inspection processes such as ultrasonic flaw detection, dynamic load testing, and high and low temperature environment testing to ensure the performance of each product meets the standards. Before leaving the factory, the product undergoes simulated belt breakage testing. Key indicators such as arrest response time, braking distance, and locking reliability are recorded, and a complete test report can be provided to customers, demonstrating the transparency and credibility of product quality.

After-Sales Support and Service Commitments

ZOOMRY has always adhered to the customer-centric approach, providing global customers with comprehensive after-sales support and technical services:

Technical Consultation and Customization Services

In response to the conveying line parameters and scenario needs of different customers, ZOOMRY provides professional technical consultation services. A team of senior engineers provides customers with support such as selection schemes, installation drawings, and mechanical calculation reports. For special working conditions (such as ultra-wide bandwidth, extreme temperature, corrosive materials), customized design services can be provided, following up the entire process from structural optimization, material selection to certification adaptation to meet customers' personalized needs.

Wear Part Supply and Quick Replacement

The wearing parts of the product (brake blocks, trigger springs, seals, etc.) adopt standardized and universal design, sharing the supply chain with ZOOMRY's existing components such as idlers and rollers. Customers can quickly purchase them through regional distributors and online procurement platforms without long waiting times. The replacement process of wearing parts is simple, no professional tools are required, and customer operation and maintenance personnel can complete it after simple training, greatly reducing downtime for maintenance.

Global Technical Support and Training

ZOOMRY provides a 7×24 global technical consultation hotline. Whether customers are located in China or overseas, they can obtain services such as fault diagnosis and technical guidance at any time. For large-scale projects, technical engineers can be dispatched to provide on-site installation guidance and commissioning training services to ensure the product is quickly put into use. At the same time, product maintenance manuals and other materials are regularly released to help customers improve equipment operation and maintenance capabilities and extend product service life.

Quality Assurance and Service Commitments

The product provides a 2-5 year warranty period (2 years for light-load type, 3 years for general-purpose type, 5 years for heavy-load type). For product failures caused by non-human factors during the warranty period, free repair or replacement services are provided. After the warranty period, lifelong maintenance services are provided, and reasonable component costs are charged to ensure customers have no worries about long-term use.