A high-throughput continuous vertical conveyor (CVC) engineered for high-frequency sorting. 100% custom-built to your facility, it utilizes synchronized mechanical fork-arms to interface directly with grid conveyors, achieving a sustained throughput of up to 1500 units per hour without intermittent indexing delays or payload collisions.
Payload Geometry: Fork spacing, comb matrices, and carrier pitch are strictly calculated for your unique cartons or totes to eliminate jam-ups.
Synchronous Actuation: Servo-driven logic and closed-loop VFDs ensure absolute timing precision during horizontal-to-vertical transfer at peak velocity.
Kinetic Integrity: FEA-validated drive chains and hardened steel fork-arms engineered to withstand continuous mechanical fatigue without elastic stretch.
| Technical Category | Engineering Keys | Standard Reference | Gradin Bespoke (ETO) |
| I. Performance | Throughput Flux | 200 – 400 U/H | 1,500+ U/H (Continuous Flow) |
| Line Velocity | 0.20 m/s | Synchronized (1.0 – 1.5 m/s+) | |
| Positioning | ± 25 mm | Sub-Millimeter (± 1 mm) | |
| II. Structural | Actuation Medium | Standard Roller Chain | High-Tension Belt / Lubrication-Free |
| Mast Engineering | Rolled C-Channel | FEA-Optimized High-Yield Alloy Spine | |
| Surface Protection | Industrial Paint | C5-M Marine / Anti-Static / Stainless | |
| III. Intelligence | Control Architecture | Siemens S7-1500 | Industry 4.0 / 5G Ready |
| Handshake Protocol | I/O Signals | Profinet / EtherCAT / TCP-IP | |
| Feedback System | Proximity Sensors | Absolute Encoders / Laser Range | |
| IV. Compliance | Risk Mitigation | Basic E-Stop | Active SIL 3 / Jam Detection |
| Global Standards | CE / Local Codes | OSHA / ASME B20.1 / ISO 13849 |
Operating a Gradin 1500U/H Fork-Arm CVC at extreme velocities introduces immense harmonic stress and resonant frequencies across the mast structure. Unlike generic vertical conveyors that suffer from structural sway at high frequencies, our systems utilize advanced Finite Element Analysis (FEA) to optimize the structural “spine” for ultra-high-frequency vibration dampening. We utilize high-yield box-section alloy steel for the primary guide masts, ensuring absolute verticality even during rapid carrier indexing. Every fork-arm is individually modeled to neutralize torsional stress, ensuring that cargo remains perfectly horizontal during 1.5 m/s+ vertical transitions. This structural stiffness is critical for preserving the fatigue life of the system over decades of 24/7 operation, transforming the CVC from a standard lift into a durable, high-velocity vertical artery.
Managing 1,500 units per hour requires a sophisticated digital pulse that eliminates mechanical shock. The Gradin 1500U/H Fork-Arm CVC bypasses the latency of traditional lifts via a Closed-Loop Servo Architecture integrated natively into our drive logic. Utilizing the Siemens S7-1500 PLC suite, the system achieves sub-millimeter fork alignment (±1mm) at every floor transition. This precision is essential for high-speed automated sortation hubs where robotic handshakes demand zero-bump thresholds. Furthermore, our Active Buffer Logic allows the carrier loop to dynamically adjust velocity. If a downstream bottleneck is detected by the WMS, the CVC shifts into an intelligent buffering mode, storing units vertically to prevent an upstream line stoppage, thereby maximizing the “items-per-minute” (IPM) throughput of the entire facility.
The Gradin 1500U/H Fork-Arm CVC functions as more than a vertical conveyor; it is a transparent data node within your facility’s digital nervous system. It is designed for seamless native integration with modern Warehouse Management Systems (WMS) and Automated Storage and Retrieval Systems (AS/RS). Through Profinet, EtherCAT, or 5G connectivity, the system facilitates a real-time data handshake, reporting carrier occupancy, torque profiles, and unit coordinates directly to your MES. To ensure maximum uptime in 24/7 industrial hubs, integrated vibration sensors and motor torque profilers track the “health signature” of every carrier. This Predictive Maintenance Monitoring identifies component wear before it results in unplanned downtime, transforming maintenance from a reactive task to a scheduled, data-driven strategy.
In fast-paced fulfillment centers, moving 1,500+ totes per hour vertically between pick-levels and packing mezzanines is a primary operational hurdle. The Gradin 1500U/H Fork-Arm CVC eliminates this bottleneck with lubrication-free drive belts and sub-second handshakes with sortation networks. By removing the need for traditional chains, we eliminate chain-stretch and the resulting maintenance downtime, ensuring a continuous vertical flow that standard reciprocating lifts cannot match, maintaining peak items-per-minute (IPM) metrics.
Frozen goods distribution requires non-stop vertical movement in environments where standard lubricants freeze and metal becomes brittle. The bespoke Gradin 1500U/H Fork-Arm CVC is engineered with thermal-rated mechanical alloys and IP65-rated control enclosures. Our oil-free drive maintains 24/7 continuous flow without the leakage or freezing risks inherent in hydraulic systems, preserving the thermal integrity of the facility while moving hundreds of units per hour in extreme temperature conditions.
Vertical transit between cleanroom floors requires a system that generates zero particulate matter and zero harmonic resonance. The custom Gradin 1500U/H Fork-Arm CVC utilizes high-tension polyurethane belts and stainless-steel cladding to maintain ISO Class environmental sterility. The vibration-dampened architecture ensures silent operation (< 62 dB), making it ideal for ergonomic workplaces and high-precision assembly links where mechanical noise must be minimized to protect operator health and system calibration.
Active Safety Architecture as the Absolute Engineering Priority
Safety in high-flux, multi-carrier vertical logistics—especially where AMRs and human operators interface with automated open shafts—is the core of our engineering mandate. The Gradin 1500U/H Fork-Arm CVC exceeds international regulatory standards through a multi-layered redundancy loop:
Active SIL 3 Risk Mitigation: We integrate ultra-fast jam-detection laser sensors and secondary mechanical lockouts to prevent carrier collisions and structural impact in the event of an obstruction.
Perimeter Safety Interlocks: Every station is designed with full-height shaft enclosures and high-speed power doors, electronically interlocked with the ASME B20.1 safety PLC logic to ensure zero operator access during transit.
Fail-Safe Mechanical Braking: Redundant electromagnetic braking systems provide a 200% holding torque safety margin. These engage instantly during an E-stop or power loss, securing the entire multi-carrier loop and protecting your facility’s high-value cargo from vertical drift or catastrophic failure.
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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