Elevating dense 30 kg polysilicon bags between furnace feed levels and bagging docks causes material degradation when using jerky reciprocating hoists. This Z-type continuous vertical conveyor uses SUS304 stainless steel carrier trays and PP protective panels to elevate 3 tons of bagged silicon material per hour across a 4200 mm stroke.
High-Density Mass Flow: Sustains 3 metric tons per hour transfer rate without carriage return delays.
Non-Contaminating Product Contact: SUS304 stainless steel carrier trays (15×30×3 mm) prevent iron pickup.
Integrated Belt Interfaces: Twin 1000 mm powered transfer beds link infeed and discharge lines.
| Technical Parameter | Standard Specification | Engineering Customization Range |
| Material Unit Weight | 30 kg per bag / container | Fully Customizable to Client Specifications (10 kg – 60 kg) |
| Material Unit Dimensions | 330 mm (L) × 230 mm (W) × 260 mm (H) | Fully Customizable to Client Specifications |
| Hourly Mass Throughput | 3.0 Metric Tons / Hour (Continuous flow) | Fully Customizable to Client Specifications (Up to 10 t/h) |
| Overall Machine Dimensions | 1,420 mm (L) × 960 mm (W) × 5,160 mm (H) | Engineered to plant ceiling cutouts and floor layouts |
| Infeed / Outfeed Elevation | Infeed: 700 mm / Outfeed: 4,200 mm from ground | Fully Customizable to Client Specifications (1m – 20m) |
| Tower Frame Profile | 80 mm × 80 mm Carbon Steel Square Tubing | SUS304 / SUS316L stainless steel profiles |
| Carrier Platform Material | 15 × 30 × 3 mm SUS304 Stainless Steel Slats | Solid comb fingers / Plastic modular flights |
| Drive Chain & Sprockets | High-Tensile Carbon Steel Transport Chain | Stainless steel chain / Nickel-plated chain |
| Enclosure Panels | Translucent Polypropylene (PP) Sheet Panels | Sheet metal / Wire mesh / Polycarbonate panels |
| Integrated Conveyor Beds | Dual Matching-Width Conveyors (1,000 mm Length each) | Powered roller / Modular plastic belt transfer beds |
| Bearing Specification | Stainless Steel Precision Deep-Groove Bearings | Ceramic hybrid bearings for abrasive dust zones |
| Geared Drive Motor | SEW-Eurodrive / Nord Helical Brake Motor | Sized per continuous load and lift speed |
| Variable Frequency Drive | Siemens VFD with S-Curve Speed Profile | Schneider / Inovance / ABB drive units |
| Surface Finish | Powder Coat Finish (Medium Grey RAL 7011) | Custom RAL industrial coatings |
| Control System | Central PLC Electrical Cabinet with Interface Sensors | SCADA, Profinet, or Ethernet/IP network cards |
The primary tower uses an 80×80 mm heavy-wall carbon steel structural frame protected by an electrostatic thermoset powder coat in medium grey (RAL 7011). Carrier beds use cold-formed 15×30×3 mm SUS304 stainless steel rectangular profiles mounted to precision carbon steel transport chains. Heavy-load pivot points integrate stainless steel deep-groove ball bearings, preventing bearing seizure from fine crystalline silicon dust intrusion. Non-shedding polypropylene (PP) sheet panels encase the vertical travel path to shield operators while preventing external contaminants from entering the product stream.
The drivetrain incorporates automatic chain tensioner blocks and oil-impregnated sintered guide tracks to manage chain elongation across continuous multi-shift production runs. Removable PP inspection windows at top and bottom sprockets enable visual chain pitch checks without dismantling side shields. GRADIN provides a 12-month structural and mechanical warranty, complete factory test certificates, fabrication drawings, and operation manuals.
Infeed at 700 mm and outfeed at 4200 mm integrate two 1000 mm conveyor belts that load and discharge 330×230×260 mm bags without pneumatic push stops. A Siemens variable frequency drive regulates the SEW / Nord brake gearmotor, allowing operators to match lift rates to upstream bagging machines. For floor-level pallet accumulation and palletizer feeding, facilities can install automated continuous vertical lifts to expand plant logistics.
Full-perimeter PP panel guards isolate moving chains from ambient shop floor traffic. Photoelectric sensors at both portals halt motor torque within 0.15 seconds upon detecting bag overhang or chute blockage. The machine complies with international industrial safety and material handling standards:
ASME B20.1 Safety Standard for Conveyors and Related Equipment
OSHA 1910 General Industry Regulations for Mechanical Power Transmission Guarding
ISO 13849-1 Machinery Safety Standards (Category 3 Architecture)
CE Machinery Directive 2006/42/EC compliance for continuous vertical conveying equipment
Polysilicon Sacking Lines: Elevating 30 kg bagged granular and chunk silicon from ground packaging units to 4.2-meter storage platforms.
Solar Photovoltaic Ingot Plants: Transfer of bagged crucible raw materials to elevated cleanroom furnace loading decks.
Battery Chemical Formulation: Elevating bagged cathode and anode precursor materials to gravimetric feed hoppers.
Specialty Mineral Processing: Continuous vertical transfer of fine graphite, quartz, and silicon carbide sacks.
Semiconductor Precursor Staging: Moving packaged high-purity chemical bags between clean staging rooms and compounding mezzanines.
Plastics Compounding Facilities: Vertical transfer of 25–30 kg masterbatch bags into compounding extruder silos.
For this heavy-duty series, we can engineer load capacities up to [300] tons, with platform dimensions and lifting heights customized to your operational envelope. Requirements exceeding our standard engineering matrix will undergo a Finite Element Analysis (FEA) by our engineering team to ensure structural viability before proposing a solution.
To initiate the engineering proposal, please provide the following baseline data:
Rated Load Capacity
Maximum Lifting Height & Closed Height
Platform Dimensions (L x W)
Duty Cycle (e.g., operational cycles per hour/day)
Environmental Conditions (e.g., indoor/outdoor, washdown, explosion-proof)
Pit depth or overhead clearance constraints
Yes. The control systems can be equipped with standard communication protocols (e.g., Profinet, Modbus, Ethernet/IP) utilizing [Siemens / Allen-Bradley / Omron] PLCs. This ensures seamless I/O signal synchronization with upstream/downstream conveyors, AGV/AMR units, and your central control room.
Every custom unit undergoes a mandatory Factory Acceptance Test (FAT) prior to dispatch. This includes continuous operational testing at 100% rated load, static overload testing at [120% / 125%] capacity, and the physical triggering of all mechanical anti-fall and hydraulic safety interlocks. FAT documentation and video proof are included in your engineering package.
Upon final approval of the General Arrangement (GA) drawings, the manufacturing lead time is typically 4 to 8 weeks. Oversized structural components are engineered with a modular design to fit into standard shipping containers (20FT/40HQ). On-site assembly utilizes pre-engineered bolted flange connections and heavy-duty aviation plugs, strictly eliminating the need for field welding.
We provide a standard [12/24]-month warranty covering the structural frame and primary hydraulic/electrical components. To minimize operational downtime, a comprehensive set of standard consumables (e.g., cylinder seal kits, travel switches, relays) is shipped alongside your equipment. During the warranty period, replacement parts for non-human-induced failures are dispatched via priority air freight (DHL/FedEx) within 48 hours.
Beyond the warranty, we guarantee lifetime engineering support. Your custom equipment's CAD drawings, electrical schematics, and BOM (Bill of Materials) are permanently archived in our system. This ensures you receive uninterrupted remote troubleshooting, maintenance guidance, and exact spare parts matching for the entire lifecycle of the equipment.
Gradin Machinery is a leading manufacturer specializing in aerial work platforms and hydraulic lifting solutions. With ISO & CE certifications, we provide safe, reliable, and customized equipment for global industrial needs
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