ZOOMRY
The ZOOMRY Grain Spiral Scraper Conveyor is a specialized equipment designed for global grain storage scenarios, focusing on the efficient scraping and conveying of bulk grains such as wheat, corn, and rice, with a broad capacity range of 100-2000 tph, covering operations from small grain depots to large storage centers. Featuring three core designs—“anti-breakage spiral, grain depot-specific chassis, and full-process residue prevention”—it meets the specialized needs of grain handling for “low breakage, ground protection, and high cleanliness.” Equipped with a 500-800 mm spiral system and an 800-1600 mm wide Conveyor Belt, supporting 100-meter wireless remote control operation, it is perfectly suited for grain depot leveling and agricultural storage transfer scenarios. Certified by CE, EAC, and EU EC 1935/2004 food contact standards, the equipment stands out as the preferred choice for “high quality, strong adaptability, and easy maintenance” in grain scraper conveyors and grain depot handling equipment, providing safe and reliable bulk grain handling solutions for global grain enterprises.
Specialized Grain Handling Advantages
The core competitiveness of the ZOOMRY Grain Spiral Scraper Conveyor lies in its deep alignment with the characteristics of grains—prone to breakage, mold susceptibility, and high hygiene requirements—as well as the operational constraints of grain depots, such as limited space and the need for ground protection. Through targeted structural optimization, it addresses the core pain points of traditional scraper equipment in grain handling, while meeting global clients’ dual demands for international compliance and operational efficiency.
The low-breakage design is key to preserving grain quality. The spiral scraper unit is fully tailored to grain characteristics, distinguishing it from general-purpose scraper conveyors for hard materials: the 6-8 mm thick wear-resistant manganese steel blades undergo rounded-edge polishing to eliminate sharp edges that could scratch grain particles; the inlaid alloy teeth adopt a 15° tilt angle arrangement, replacing traditional vertical grabbing methods, significantly reducing impact and compression on grains. Paired with a precisely adjustable spiral linear speed of 2.5-3.0 m/s—lowered to 2.5 m/s for fragile grains like rice and increased to 3.0 m/s for hard grains like corn—the grain breakage rate is controlled below 0.5%, far surpassing the industry average of 1.5%. Additionally, the spiral outer diameter ranges from 500-800 mm, adapting to varying grain pile densities: lightweight grains like wheat and rice use an 800 mm large spiral for high throughput, employing a “layered scraping” logic to avoid pile compression; larger-particle grains like corn use a 500 mm spiral with wider-spaced teeth to reduce jamming risks, ensuring uninterrupted continuous operation.
The grain depot-friendly chassis design minimizes site damage. Tailored to the concrete floors, moisture-proof membranes, or wooden pallets commonly found in grain depots, the equipment features a 400 mm wide dual-configuration tracked chassis: the rubber tracks, model 4009068 with an effective length of 2.9 m, use food-grade high-elasticity rubber compliant with EU EC 1935/2004 standards, with a ground pressure of only 0.07 MPa, evenly distributing equipment weight to avoid damaging ground protective layers. With a minimum turning radius of 5 m, it allows flexible movement in narrow gaps between grain piles, reducing friction damage to the ground from route adjustments. The optional steel tracks, made of passivated Q355B steel, model 40013554 with an effective length of 3.6 m, have no sharp edges to prevent scratching concrete floors, while offering high wear resistance for long-term hard ground operations. Both track types are driven by hydraulic motors paired with planetary reducers, delivering 3500 N·m of torque for smooth start-stop under full load. Combined with chassis hydraulic shock absorbers, the equipment maintains a body vibration amplitude of ≤3 mm on slightly uneven depot floors, preventing grain spillage during conveying.
The full-process residue prevention design eliminates grain contamination risks. Grain residues can trigger mold growth, affecting the quality of entire storage batches. The equipment employs a residue-free structure from hopper to conveyor belt: the hopper’s inner wall is lined with 1.5 mm thick polytetrafluoroethylene (PTFE) anti-stick coating with a surface friction coefficient of only 0.04, achieving a grain residue rate of ≤0.2%, and the lining complies with food contact safety standards for direct grain contact; the hopper’s “V-shaped” flow-guiding structure, paired with a 15° angled discharge port, ensures residue-free grain transfer, eliminating mold risks from accumulated material. The conveyor belt uses a nylon-core polished anti-slip rubber belt with a surface roughness of Ra≤0.8 μm, replacing traditional diamond patterns to prevent grain particles from embedding in gaps; 350 mm high rubber skirts with built-in soft sealing strips on both sides block side leakage while facilitating cleaning. The conveyor belt’s head is equipped with two sets of polyurethane cleaning scrapers (3-phase powered), achieving a 99% cleaning rate to thoroughly remove residual debris, preventing cross-contamination during alternating handling of corn and wheat; food-grade sealing strips at the spiral shaft and hopper connection prevent dust and impurities, fully complying with global grain storage hygiene requirements.
Core Systems of the Grain Spiral Scraper Conveyor
The long-term reliable operation of the ZOOMRY Grain Spiral Scraper Conveyor relies on core systems optimized for “grain safety, operational efficiency, and depot adaptability.” Each component undergoes grain industry condition simulation and international hygiene standard verification to ensure safe and continuous operation in global grain depots.
The spiral drive system enables precise grain handling. The drive core consists of 22-75 kW customized motors, matched to capacity gradients: 22-37 kW for 100-500 tph, 45-55 kW for 500-1200 tph, and 75 kW for 1200-2000 tph. With an IP55 protection rating and anti-corrosion-treated housing, the motors withstand the 60%-80% high-humidity environments of grain depots; the rotor uses high-silicon steel lamination for operating noise ≤70 dB, avoiding disturbance to the depot’s surroundings. The accompanying reducer offers three models: ZQ350 dual output, ZQ400 dual output, and ZLY250 hard-tooth surface dual output, with the hard-tooth surface reducer achieving 97% transmission efficiency and supporting stepless speed regulation of 0-30 r/min—set to 15 r/min for rice to minimize breakage and 25 r/min for corn to boost efficiency, balancing “efficiency and low breakage.” The reducer connects to the spiral shaft via a flexible coupling to buffer startup impact loads, preventing instantaneous grain compression damage.
The grain depot-specific conveyor belt system ensures safe transfer. The belt width ranges from 800-1600 mm, selected based on capacity: 800-1000 mm for 100-800 tph, and 1200-1600 mm for 800-2000 tph. The conveyor belt is made of nylon-core anti-slip rubber with a longitudinal tensile strength of 1600 N/mm and polished surface treatment ensuring a friction coefficient ≥0.35, preventing slippage while minimizing residues. The drive uses a 15-30 kW electric drum, eliminating the need for additional motor and reducer installations, offering a compact structure and easy maintenance. Built-in overheat protection (automatic shutdown above 120℃) prevents conveyor belt overheating from prolonged operations, which could affect grain quality. The 12-15 m long conveyor belt, paired with a 4-meter fixed discharge height, directly connects to grain depot elevators or silo feed ports, eliminating secondary transfers to reduce breakage and contamination risks. The side skirts, made of food-grade rubber, have an anti-aging lifespan exceeding 2000 hours, reducing replacement frequency and costs in grain depots.
The precise control and food-grade hydraulic system ensure operational safety. The control system, centered on “grain operation convenience,” features a 12-inch high-definition HMI touchscreen supporting English, Russian, Spanish, and Chinese language switching, with an interface focused on “grain parameter settings,” capable of storing five sets of common grain operation parameters (e.g., wheat spiral speed 20 r/min + conveyor belt speed 1.8 m/s, corn spiral speed 25 r/min + conveyor belt speed 2.2 m/s), enabling one-touch retrieval without repeated adjustments. The 100-meter wireless remote control handle supports full functionality, allowing operators to monitor operations from safe depot areas, avoiding exposure to harmful substances like wheat dust. In emergencies, dual emergency stop buttons on the remote handle and control cabinet instantly cut off power, ensuring safety. The hydraulic system powering the tracks uses an 11-18.5 kW pump station (11 kW for rubber tracks, 15-18.5 kW for steel tracks), with a 200 L oil tank equipped with triple filtration devices (10 μm filtration accuracy) and FDA-compliant food-grade anti-wear hydraulic oil to prevent grain contamination from leaks. Stainless steel connectors and high-pressure hoses offer excellent corrosion resistance for long-term humid depot environments, with an annual system failure rate below 0.5%.
Grain Depot-Friendly Transport and Installation
Addressing the grain depot characteristics of “limited space and uninterrupted operations,” the ZOOMRY Grain Spiral Scraper Conveyor adopts a “compact modular + high pre-assembly” design, ensuring grain handling performance while significantly reducing transport and installation challenges within depots, minimizing disruptions to normal storage operations.
The modular disassembly design adapts to grain depot transport conditions. The equipment can be disassembled into four standard units—spiral scraper module, conveyor belt module, tracked chassis module, and control module—each sized to fit a 40-foot high-cube container (12.03 m long × 2.35 m wide × 2.69 m high), with single-unit weights ≤20 tons, movable within depots via standard freight elevators or forklifts. The spiral and conveyor belt modules use a “horizontal disassembly” design to avoid vertical hoisting pressure on depot ceilings; the control module is integrated into a 1.2 m × 0.8 m × 1.5 m waterproof enclosure, placeable in depot corners without occupying operational space. Compared to traditional integrated scraper equipment, this design reduces cross-border logistics costs by 40%. Core components (e.g., anti-stick hoppers, polished conveyor belts) are factory-packaged with dust-proof and scratch-resistant materials to prevent surface damage during transport that could affect residue control.
The high pre-assembly ratio enables rapid commissioning. The equipment is 90% pre-assembled at the factory, including precise spiral-to-motor connections, conveyor belt installation and tuning, initial hydraulic pipeline connections, and control system parameter calibration, undergoing 80 hours of “simulated grain depot” full-load testing with mixed wheat and corn to verify breakage and residue rates, ensuring fault-free on-site installation. On-site installation requires only three core steps: first, modular unit assembly, connecting the spiral module to the chassis and the conveyor belt module to the frame with high-strength bolts, completed by two people in 2 hours; second, final connection of hydraulic pipelines and electrical plugs using food-grade sealing connectors, taking ≤1 hour; third, no-load testing and parameter fine-tuning, checking spiral scraping, conveyor belt cleaning, and remote control functions, completed by a skilled team in one day for commissioning. ZOOMRY provides a multi-language technical manual with “grain residue prevention cleaning procedures” and “parameter settings for different grains,” along with 24-hour online technical support, enabling deployment without a professional installation team and avoiding disruptions to normal depot operations.
Global Compliance and Grain-Specific Quality Testing
As equipment designed for the global grain industry, the ZOOMRY Grain Spiral Scraper Conveyor ensures compliant use in various countries and regions through multiple international certifications and grain-specific quality testing, safeguarding grain safety and equipment reliability from the source.
Global compliance covers mainstream market entry standards. The equipment has passed EU CE certification (Machinery Directive 2006/42/EC, Electromagnetic Compatibility Directive 2014/30/EU), completing 12 specialized tests for grain handling equipment safety requirements, including structural load-bearing strength, emergency braking response (≤0.5 seconds), electrical safety protection (IP65), and resistance to strong electromagnetic interference in depots, enabling direct entry into the European Economic Area (EEA) market. It also holds EAC certification from the Russian Customs Union, meeting the operational needs of “-30℃ low-temperature grain depots” in CIS countries, with technical documentation provided in Russian, including protocols for preventing grain caking in low temperatures. Core grain-contact components (hopper lining, conveyor belt, sealing strips) comply with EU EC 1935/2004 and U.S. FDA 21 CFR Part 177 food contact material standards, ensuring no harmful substance migration risks. The equipment also adheres to ISO 22000 food safety management systems, with a fully traceable production process from raw material intake (e.g., stainless steel composition testing) to finished product delivery, with detailed quality records for each step to ensure consistency in mass production.
Grain-specific quality testing focuses on safety and reliability. ZOOMRY’s in-house grain equipment testing laboratory, equipped with grain breakage rate testers, residue detectors, and food contact material analyzers, conducts rigorous testing on core performance: in anti-breakage tests, continuous 100-hour scraping of wheat, rice, and corn achieves breakage rates of 0.3%, 0.5%, and 0.2%, respectively; in residue tests, handling corn with 18% moisture content results in hopper and conveyor belt residue ≤0.2 g/m², well below the grain depot hygiene standard of 1 g/m²; in hygiene tests, grain-contact components have a bacterial count ≤10 CFU/cm², with no E. coli or mold; in low-temperature tests, the equipment starts and operates normally at -30℃ without jams or faults. Each unit undergoes 16 specialized tests before delivery, including “grain type switching tests,” “depot ground adaptability tests,” and “low-temperature startup tests,” with delivery only upon meeting standards, ensuring reliable operation and grain safety in global depot scenarios.
Technical Parameters
| Item | Specification Parameters |
|---|---|
| Equipment Type | Grain-Specific Spiral Scraper Conveyor |
| Applicable Grain Types | Wheat, corn, rice, barley, sorghum, other bulk grains |
| Capacity Range (tph) | 100-2000 |
| Spiral Outer Diameter (mm) | 500-800 |
| Spiral Scraping Width (m) | 2-3.2 |
| Material Pickup Width (m) | 2.4-3.6 |
| Spiral Configuration | 6-8 mm rounded polished blades + 15° tilted alloy teeth (breakage rate ≤0.5%) |
| Motor Power (kW) | 22-75 (spiral drive) |
| Reducer Model | ZQ350 dual output / ZQ400 dual output / ZLY250 hard-tooth surface dual output (supports 0-30 r/min stepless speed regulation) |
| Conveyor Belt Width (mm) | 800-1600 |
| Conveyor Belt Length (m) | 12-15 |
| Conveyor Belt Power (kW) | 15-30 (electric drum) |
| Conveyor Belt Material | Nylon-core polished anti-slip rubber belt (complies with EC 1935/2004) |
| Discharge Height (m) | 4 |
| Hydraulic Pump Station Motor Power (kW) | 11-18.5 (track drive) |
| Tracked Chassis | Rubber tracks (4009068, effective length 2.9 m, ground pressure 0.07 MPa, food-grade rubber); Steel tracks (40013554, effective length 3.6 m, passivated surface), chassis outer width 2.3 m (supports widening) |
| Control System | Stainless steel rainproof control cabinet (IP65), 100 m wireless remote + local control (stores 5 grain operation parameter sets) |
| Motor Protection Rating | IP55 (spiral/pump station motor), IP54 (electric drum) |
| Grain Residue Rate | ≤0.2% |
| Applicable Ambient Temperature (℃) | -30\~60 (resistant to extreme climates) |
| Optional Configurations | Enhanced PTFE anti-stick lining, conveyor belt cleaning brush, grain temperature sensor, anti-mold hopper coating, low-temperature hydraulic oil heating system |
Why Choose ZOOMRY
Client Value
Choosing the ZOOMRY Grain Spiral Scraper Conveyor provides global grain depot and agricultural storage clients with significant value in three core dimensions. In grain quality, a breakage rate below 0.5%—67% lower than traditional equipment—reduces mold risks and quality degradation, with a residue rate ≤0.2% ensuring compliance with global grain procurement standards, enhancing market competitiveness. In operational efficiency, the “scraping-conveying” integrated design eliminates 1-2 transfer stages, improving depot leveling efficiency by 40% compared to traditional “loader + conveyor” methods; the 100-meter wireless remote control reduces manual intervention, with a single unit replacing multiple operators, and the wide capacity range covers various storage scales without requiring multiple equipment configurations. In compliance and safety, core components meet global food contact standards, with CE and EAC certifications ensuring smooth market entry, and ISO 22000 compliance reducing recall or penalty risks due to hygiene issues, lowering compliance costs.
Service Support
ZOOMRY has established a dedicated “technical + spare parts + training” service system for global grain depot clients. For technical support, multi-language grain depot-specific documentation is provided, including spiral parameter setting guides for different grains, low-temperature depot maintenance techniques, and equipment cleaning and disinfection procedures, accompanied by clear diagrams and videos. 24-hour online technical support (email: oversea@zoomry.cn; phone: +86-13164016717) offers engineer responses within 4 hours, with assigned personnel having over 5 years of grain equipment service experience, familiar with pain points like tropical depot moisture prevention and cold-region low-temperature startups. For spare parts assurance, ZOOMRY’s efficient global supply chain pre-stocks common spare parts like anti-stick linings, food-grade conveyor belts, and alloy teeth, with rapid international logistics delivery optimized by region; for key clients, a “spare parts pre-planning service” tailors procurement and storage plans based on grain operation seasons (e.g., high-load post-harvest) and wear part replacement cycles, using bulk or phased restocking to avoid operation interruptions. For specialized training, ZOOMRY offers “grain operations and safety” training, covering anti-breakage parameter optimization, cleaning and disinfection protocols, and grain temperature anomaly handling, ensuring client teams master grain safety essentials through theoretical and practical training, meeting depot professionalization needs.
