Vertical Tubular Chain Conveyor

The Verical Tubular Chain Conveyor (standard configuration: food/chemical grade; custom options available: explosion-proof/aseptic/high-temperature resistant) is a closed-loop vertical/inclined lifting and conveying system designed specifically for powders, granules, and small lump materials. Leveraging the company's years of experience in material handling and fluid system integration, it utilizes a core design of "closed-loop tubular chain traction + modular segmented design + safety interlock protection." Employing flange quick-installation/floor-mounted/support integrated structures, it boasts advantages such as small footprint, stable conveying, dust-free operation, low energy consumption, convenient maintenance, and ample safety redundancy. Manufactured in strict accordance with GB 12476, GB/T 19815, ISO 14644, and 3A hygiene standards, it is suitable for temperatures from room temperature to 80℃ (a 120℃ high-temperature version is available upon customization), with lifting heights up to 30m and conveying capacities from 1 to 50 tons. With a capacity of m³/h, this multi-mode bucket elevator is widely used in vertical/inclined material lifting in industries such as food processing, biopharmaceuticals, fine chemicals, lithium battery materials, feed processing, plastic granules, and mineral powders. It completely solves the industry pain points of traditional bucket elevators, such as high dust levels, material damage, material jamming, and inability to adapt to clean/explosion-proof working conditions. It achieves **zero dust leakage, damage-free material conveying, and fully controllable closed lifting**, helping companies pass various stringent certifications and environmental inspections such as GMP, explosion-proof certificates, and food hygiene and safety certifications.

As a core material lifting device for clean, explosion-proof, and dust-free production scenarios, this product is based on the dual functions of "closed-loop vertical lifting + full-process safety protection." These three functions work together to connect raw material silos, mixing equipment, metering units, and packaging lines, achieving triple protection of materials being dust-free, damage-free, and free from cross-contamination. It balances conveying efficiency and operational stability, and is suitable for demanding conditions such as aseptic production, explosion-proof workshops, and fine powder processing.

Closed-loop zero-leakage material conveying : It adopts a fully sealed steel/stainless steel pipe cavity with built-in high-strength wear-resistant chain + special disc/scraper, and the material is continuously pushed and lifted in the pipeline; there is no dust spillage throughout the process, and the powder leakage rate is <0.01%, eliminating the problems of workshop dust, material moisture and cross-contamination; it can convey a variety of materials from ultrafine powders (such as flour, pharmaceutical powder, lithium battery cathode materials) to small particles (such as plastic particles, nuts, granular medicines), and the materials are almost undamaged, meeting the high purity requirements of the food and pharmaceutical industries.

Differential pressure/blockage/temperature linkage early warning + low energy consumption and long-term operation and maintenance : The standard PLC online monitoring system has preset three thresholds for differential pressure, blockage, and over-temperature. Abnormalities will trigger an automatic alarm and emergency shutdown. It adopts a low-resistance chain drive and load-equalizing disc design, and its operating energy consumption is 25%~30% lower than that of traditional bucket elevators. The discs/chains/pipes adopt a quick-release buckle + sealing ring structure, which can be disassembled and cleaned by a single person without tools. Under normal temperature and clean working conditions, the service life of vulnerable parts can reach 1~2 years. The pre-filtered dustproof end caps can be repeatedly cleaned, which greatly reduces operation and maintenance costs and downtime losses.

Explosion-proof and sterile dual safety protection + wear-resistant design : It adopts a tenon-and-mortise seal + double silicone rubber sealing ring structure, and the cabinet and pipeline are welded as one piece; the explosion-proof model is equipped with an explosion-proof motor, anti-static chain, and spark detection and extinguishing system, which meets GB3836 standard and is suitable for flammable and explosive dust/gas environments; the sterile and hygienic model is made of 316L stainless steel, polished without dead corners, and can withstand CIP/SIP online cleaning and sterilization, meeting GMP and FDA hygiene requirements; it is equipped with overload protection, chain breakage detection, and anti-reverse device to avoid abnormal damage to the system and ensure long-term safe operation of the equipment.

1. It occupies a very small area and is highly adaptable.

With its vertical layout, it occupies only 35% of the area of traditional horizontal + bucket elevator combination equipment, making it particularly suitable for space-constrained scenarios such as cleanrooms, small workshops, and multi-level production lines. It can achieve 90° vertical lifting and can also perform 30°~70° inclined conveying, supporting Z-type and L-type combined conveying. It can directly connect to upstream and downstream equipment without complex transfers. The flange interface complies with GB/T 9113 standard and can be directly connected to existing silos and production lines without large-scale modifications.

2. Modular customization, covering all material types.

We can flexibly customize pipe diameter, chain material, and disc type (flexible/rigid) according to customer material characteristics and working conditions; materials include 304 stainless steel, 316L stainless steel, and carbon steel with anti-corrosion coating; anti-stick coating pipes are available for sticky materials, and wear-resistant ceramic liners are available for abrasives; we cover all needs from ultrafine powders to small particles, from room temperature to high temperature, and from ordinary working conditions to explosion-proof/sterile conditions.

3. Low energy consumption and low noise, resulting in outstanding economic efficiency in operation.

The optimized chain drive and lightweight disc design significantly reduce motor power requirements, resulting in energy consumption that is more than 25% lower than traditional lifting equipment. The sealed pipeline structure effectively isolates operating noise, with operating noise ≤65dB(A) (floor-mounted model), far below workshop noise standards. The lifespan of vulnerable parts is clearly defined, and the replacement cycle can be precisely controlled through online monitoring, reducing downtime and consumable procurement costs.

4. Materials are compliant, testing is complete, and certification is worry-free.

Components in contact with materials can be made of 316L food-grade stainless steel, meeting 3A hygiene standards; explosion-proof components have all passed GB3836 third-party testing and certification; each unit undergoes no-load/load test operation, sealing leakage test, chain tension test, and safety interlock function test before leaving the factory; third-party testing reports, material certificates (MTC), explosion-proof certificates, and hygiene certification reports can be provided, fully complying with various stringent certification requirements.

Shanghai Hanye Engineering Technology Co., Ltd. specializes in material handling and fluid safety, focusing on the challenges of vertical lifting in clean, explosion-proof, and dust-free environments. With a core philosophy of "zero leakage, precision and stability, safety and reliability, and low-cost operation and maintenance," we provide customers with highly adaptable Vertical Tubular Chain Conveyors and related system solutions. For detailed parameters, operating condition adaptation selection, conveying capacity calculations, or on-site case studies, please feel free to contact us!