
As a core hub for manufacturing and logistics in the Yangtze River Delta, Suzhou has seen automated storage and retrieval system (AS/RS) projects become a vital option for enterprises to improve warehousing efficiency and reduce operating costs. The construction integrates structural engineering, electrical control, software integration and other multidisciplinary technologies. Standardized procedures and strict detail control directly determine the final performance of the project. This article analyzes the full construction process and core technical aspects.
The premise of automated warehouse construction is systematic planning based on customer demands, including key steps as follows:
Demand research: Clarify the size of storage units such as pallet specifications and cargo weight, daily inbound and outbound throughput, SKU quantity and inventory turnover frequency. Reserve expansion space to support business growth in the next 3 to 5 years.
Solution design: Select the appropriate AS/RS type according to demands. Beam-type AS/RS suits high storage density scenarios, while shuttle-based AS/RS fits multi-variety and small-batch scheduling. Optimize the layout including aisle width, shelf height and the quantity of stackers to balance storage capacity and operational efficiency.
Construction drawing refinement: Convert the solution into executable construction drawings, including detailed shelf structure drawings with column spacing and embedded part positions, electrical system drawings with cable routing and control cabinet layout, and mechanical assembly drawings with interface dimensions of stackers and conveyors, so as to ensure precise connection of all links.
On-site preparation is critical to subsequent installation quality, with key focuses on:
Site clearing and foundation construction: Remove original facilities, level the ground and pour concrete foundations. The ground bearing capacity is required to reach ≥30kN/㎡ to bear the weight of shelves and equipment, with flatness error ≤2mm/m to avoid stacker operation deviation. Embedded parts shall be positioned precisely within an error of ±3mm to ensure firm connection between shelf columns and the foundation.
Water, electricity and network deployment: Access 380V power supply to meet the power demand of stackers, conveyors and other equipment. Deploy weak current systems including network and communication cables to guarantee stable data transmission of WMS (Warehouse Management System) and WCS (Warehouse Control System).
Equipment installation shall proceed in sequence with strict attention to assembly precision:
Shelf installation: Assemble columns first then cross beams. Adopt a laser plummet to control column verticality within 1/1000 and beam levelness error within 2mm per section, preventing stacker jamming caused by inclined shelves.
Stacker installation: Keep the track straightness error ≤1mm per 5 meters. Calibrate the assembly precision of the lifting mechanism, traveling mechanism and fork mechanism during body assembly, ensuring the horizontal deviation of the fork during cargo picking ≤±2mm.
Auxiliary equipment installation: Conveyors, shuttles and elevators shall be seamlessly connected with shelves and stackers. Adjust conveying speed and interface height to ensure smooth cargo circulation.
Debugging includes standalone debugging and joint system debugging:
Standalone debugging: Test the traveling speed and lifting precision of stackers, the stability of fork extension, the start-stop response and conveying speed of conveyors, as well as the path planning and positioning accuracy of shuttles within ≤±5mm.
Joint system debugging: Connect WMS with WCS, and simulate inbound, outbound and inventory checking processes. Verify system efficiency and stability, and solve problems such as operation stalling and data delay.
Acceptance shall comply with national and industrial standards such as GB/T 35743-2017 Code for Design of Automated Warehouses:
Performance acceptance: Ensure stacker positioning accuracy ≤±5mm, actual inbound and outbound capacity reaching the designed value, and effective functioning of safety facilities including emergency stop buttons and guardrails.
Document delivery: Submit construction drawings, operation manuals, acceptance reports and other materials.
Personnel training: Provide WMS operation and equipment start-stop training for operators, and daily inspection & troubleshooting training for maintenance personnel to ensure official operation after delivery.
Precision control: Adopt laser measuring instruments such as laser rangefinders and plummeters throughout the construction, keeping installation errors within the millimeter level to guarantee stable equipment operation.
Safety management: Require safety belts for high-altitude work, strictly implement power-off operation for electrical construction, and set warning areas during debugging to prevent safety accidents.
Collaborative construction: Arrange simultaneous operation for shelf installation, electrical and mechanical teams, and hold daily coordination meetings to solve connection problems in cross construction.
The automated warehouse construction industry in Suzhou is developing toward intelligence and modularization with continuous technological upgrading. In the future, green construction such as the application of energy-saving equipment and digital management represented by BIM technology will become industrial trends, further improving project quality and efficiency.
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