As manufacturers accelerate their transition toward Industry 4.0, smart factory automation, and digital manufacturing, the demand for automated storage solutions for oversized and heavy materials continues to grow.
Long materials such as steel bars, profiles, shafts, molds, and structural components present unique challenges in storage, handling, inventory management, and workplace safety.
To address these challenges, China JSSL Company developed a customized heavy-duty automated storage and retrieval system (ASRS) for a leading fastener manufacturer, helping create one of the region's first next-generation lights-out factories while significantly improving operational efficiency, storage density, and production flexibility.
Industry Challenges in Long Material Storage
Across industries such as:
Fastener manufacturing
Metal processing
Machinery manufacturing
Aerospace
Energy equipment
Heavy engineering
Raw materials often exceed:
3 meters in length
3 tons in weight
In many facilities, these materials are traditionally stored through floor stacking.
This creates multiple operational problems:
Low Space Utilization
Large materials occupy substantial floor space and limit warehouse expansion potential.
Safety Risks
Manual handling of oversized materials increases accident risks and workplace hazards.
Inventory Management Difficulties
Stacked materials are difficult to identify, locate, and trace accurately.
Slow Material Access
Retrieving specific materials often requires moving multiple layers of inventory.
Rising Labor Costs
Heavy material handling requires significant manpower, increasing operational expenses.
As manufacturers pursue factory automation and intelligent warehousing, traditional storage methods have become major bottlenecks.
(Intelligent Warehouse Solution)
Customer Background
The customer is a leading manufacturer specializing in:
Wind turbine fasteners
Tower fasteners
Foundation anchor systems
High-strength bolts
Heavy-duty nuts
Its products serve industries including:
Wind energy
Petrochemicals
Nuclear power
Railway infrastructure
Heavy machinery
Bridge construction
The company is committed to building a modern Industry 4.0 manufacturing facility driven by:
Big data
Automation
Intelligent manufacturing
Digital management
As production expanded rapidly, conventional raw material storage could no longer support future growth.
Project Objectives
The company sought to establish a fully automated long-material warehouse capable of handling:
Material lengths exceeding 8 meters
Single-unit weights up to 8 tons
Seamless integration with production systems
High-density storage
Automated inventory management
Following the successful deployment of a previous automated finished-goods warehouse supplied by China JSSL Company, the customer selected the company once again to deliver its new raw material storage automation project.
The goal was to create a fully connected digital workflow from raw material receiving through production and finished goods dispatch.
Automated Long Material Warehouse Solution
China JSSL Company designed and implemented a customized Heavy-Duty Long Material ASRS Solution consisting of:
Rail-Guided Stacker Cranes
Two heavy-duty dual-column stacker cranes perform all storage and retrieval operations.
Cantilever Storage Racking
Specially engineered racks support oversized bar materials safely and efficiently.
Automated Conveyor Systems
Integrated conveyor equipment enables seamless material transfer between warehouse and production operations.
Warehouse Management System (WMS)
Provides inventory visibility and material traceability.
Warehouse Control System (WCS)
Coordinates equipment operations and task scheduling.
(Smart Factory Automation)
Warehouse Specifications
The automated warehouse features:
538 storage locations
Nearly 4,000 tons total storage capacity
Material lengths exceeding 8 meters
Individual load capacity exceeding 8 tons
The solution enables fully automated storage and retrieval of oversized raw materials.
Intelligent Operating Workflow
Automated Storage
Upon receiving inbound instructions, stacker cranes automatically transport materials from receiving stations to designated storage locations.
Automated Retrieval
When production requests materials, the WMS generates retrieval tasks.
The stacker crane retrieves the required material and transfers it to the conveyor system for delivery to downstream production processes.
Inventory Verification Support
The system also assists warehouse personnel with inventory counting.
Under WCS control:
Materials are automatically presented for verification
Inventory data is updated through handheld terminals
Corrected inventory information synchronizes with the WMS database
This significantly improves inventory accuracy.
(Heavy Load Stacker Crane)
Technical Innovations
Customized Heavy-Duty Stacker Crane Design
Handling materials exceeding:
8 meters in length
8 tons in weight
required significant engineering customization.
China JSSL Company developed specialized:
Telescopic forks
Reinforced crane structures
Long-load handling mechanisms
to ensure safe and reliable operation.
Automated Dimension Inspection
Every incoming storage unit passes through an intelligent dimension verification system.
The system automatically checks:
Length
Width
Height
Materials outside predefined tolerances are automatically rejected and reported.
This ensures storage quality and system safety.
Advanced Safety Protection
Multiple layers of protection safeguard equipment and inventory, including:
Safety PLC controls
Anti-fall protection systems
Hydraulic energy absorbers
Emergency braking systems
Collision prevention mechanisms
These features ensure safe operation even under full-load conditions.
Modular Maintenance Design
Key components utilize modular construction for rapid maintenance and replacement.
This minimizes downtime and improves equipment availability.
Heavy-Duty Structural Engineering
The stacker crane columns adopt reinforced box-frame structures with internal strengthening ribs.
This design ensures long-term stability under continuous heavy-load operation.
Business Results
Following implementation, the project delivered substantial operational improvements.
Increased Storage Density
Nearly 4,000 tons of raw materials can now be stored within a highly compact footprint.
This significantly reduces warehouse space requirements.
Improved Production Efficiency
Automated material handling eliminates production bottlenecks caused by manual storage operations.
The system supports both peak-season and off-season production requirements.
Enhanced Workplace Safety
Automated operations greatly reduce manual handling of heavy materials, lowering workplace risks and improving safety management.
Reduced Labor Dependency
The company successfully addressed labor shortages and rising labor costs through warehouse automation.
Improved Digital Management
Real-time inventory visibility enables:
Material traceability
Production planning
Inventory optimization
Digital warehouse management
(Digital Factory Solution)
Supporting the Future Factory Vision
The project plays a key role in the company's broader smart factory strategy, helping establish a highly automated production environment aligned with modern manufacturing requirements.
By integrating:
Automated storage systems
Intelligent warehouse software
Heavy-duty material handling equipment
Digital production management
the facility has become a benchmark example of future factory development within the fastener manufacturing industry.
Conclusion
Through close collaboration with China JSSL Company, the manufacturer successfully transformed its long-material storage operations into a highly automated, intelligent warehouse system.
The project demonstrates how heavy-duty ASRS technology, automated material handling systems, intelligent warehouse management, and Industry 4.0 solutions can unlock higher productivity, improved safety, and greater operational flexibility.
For manufacturers dealing with oversized raw materials, this project provides a proven model for achieving smart manufacturing transformation and digital factory development.