Batch elevators create severe transfer delays when moving bulk sacks between raw material depots and elevated packaging levels. This continuous vertical bag conveyor moves 20 kg to 60 kg sacks at rates up to 600 units per hour across vertical elevations up to 16 meters.
High-Throughput Motion: Sustained transfer rate of 600 bags per hour without return cycle wait times.
Flexible Tower Configurations: Configurable in Z-type reversible drive or C-type downward flow layouts.
Rigid Structural Frame: F80×4.5 mm square tube steel frame resists vibration under full load.
| Technical Parameter | Standard Specification | Engineering Customization Range |
| Material Unit Weight | 20 kg – 60 kg per bag | Fully Customizable to Client Specifications (10 kg – 100 kg) |
| Material Unit Dimensions | Length 0.8–1.5 m, Diameter 0.5–1.2 m | Fully Customizable to Client Specifications |
| Conveying Capacity | 600 bags/hour (Continuous motion) | Fully Customizable to Client Specifications (Up to 1,200 bags/hr) |
| Vertical Stroke / Travel | 8.0 m (3 Units) / 16.0 m (4 Units) | Fully Customizable to Client Specifications (3m – 30m) |
| Infeed / Outfeed Layout | Z-Type (Bi-Directional) & C-Type (Downward) | Z-Type, C-Type, or E-Type multi-level flow |
| Main Tower Structure | F80 × 4.5 mm Structural Steel Square Tubing | Heavy structural channel or stainless steel profiles |
| Carrier Drive Chain | 16A Heavy-Pitch Precision Roller Chain | 20A / 24A heavy-duty alloy transport chain |
| Peripheral Protection | 1,500 mm Mezzanine Guardrails + Yellow Wire Mesh | Solid sheet metal or polycarbonate safety enclosures |
| Infeed / Discharge Interface | 2000 × 1500 × 700 mm Expandable Cleated Conveyors | Powered roller beds / Pneumatic indexing pushers |
| Operating Mode | Forward / Reverse Reversible (Z-Type Units) | Continuous single-direction or indexing cycles |
| Drive Motor Package | 5.5 kW – 11.0 kW Helical Bevel Gearmotor with Brake | Sized per stroke height and total chain payload |
| Power Supply Rating | 380V / 50Hz / 3-Phase | Fully Customizable to Client Specifications (208V–480V, 60Hz) |
| Control Architecture | Centralized PLC Control Cabinet with Photoelectric Sync | Integration with warehouse WCS / SCADA networks |
| Structural Finish | RAL 7035 Light Grey Body + Safety Yellow Guarding | Custom corporate RAL paint specifications |
| Equipment Warranty | 5-Year Structural Frame + 1-Year Mechanical/Electrical | Extended preventative maintenance service contracts |
The primary chassis uses F80×4.5 mm cold-drawn structural steel square tubing, combined with heavy-duty 16A roller carrier chains rated for tensile breaking forces above 60 kN. Self-lubricating wear-resistant polymer guides secure carrier platforms throughout the vertical loop, eliminating chain slap during directional shifts. Outer enclosure panels feature carbon steel wire mesh framed in structural angle iron, coated in high-visibility safety yellow, while the central tower frame receives an industrial RAL 7035 light grey polyurethane finish.
The main drive system incorporates automatic chain tensioners and centralized oil reservoir drip applicators to control chain stretch over extended production shifts. Floor-level access doors permit inspection of sprockets, drive shafts, and carrier platforms without dismantling surrounding enclosure panels. GRADIN provides a 5-year structural warranty alongside a 12-month electro-mechanical component warranty, complete engineering documentation, and direct replacement parts dispatch.
Infeed and discharge stations integrate with 2000×1500×700 mm cleat-belt and flexible expandable roller conveyors to transfer sacks without manual positioning. Bi-directional drive packages allow Z-type units to alternate between elevation and lowering modes based on production demand. For operations that combine continuous bag transfer with pallet staging at floor level, facilities can integrate complementary automated vertical conveyors to route materials across mezzanine floors.
Full-height yellow wire mesh enclosures prevent human access to the internal continuous carrier loop. Upper floor penetrations incorporate 1500 mm structural perimeter handrails around three sides of the mezzanine opening to stop fall hazards. The equipment satisfies international machine construction and material transfer standards:
ASME B20.1 safety code for continuous vertical material conveyors
OSHA 1910 machine guarding regulations for mechanical power transmission apparatus
ISO 12100:2010 safety of machinery basic design standards
CE Machinery Directive 2006/42/EC compliance for continuous vertical conveying lines
Raw Material Bag Elevating: Elevation of 20 kg to 60 kg chemical, polymer, and mineral sacks from ground receiving bays to 8-meter raw material storage floors.
Finished Product Descents: Lowering filled grain, feed, and seed bags from 16-meter processing levels to ground packaging zones via C-type downward flow.
Cement & Dry Mortar Distribution: Vertical routing of bagged building materials across multi-tier bagging plants.
Food Ingredient Transfer: High-frequency movement of 25 kg sugar, flour, and starch sacks into elevated mixing silos.
Bulk Chemical Warehouse Staging: Bi-directional vertical routing of packaged catalyst and pigment sacks between tiered warehouse levels.
Agricultural Packaging Depots: Transfer of bagged fertilizers from bagging machinery to elevated truck loading platforms.
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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