Is your warehouse packed to the brim, yet you still lack space? Do your employees spend hours every day just searching for and retrieving a single pallet? This is the challenge most manufacturing and logistics companies in Vietnam face as business growth outpaces the speed of facility expansion.
ASRS (Automated Storage & Retrieval System) is the answer to this problem. It is the core technology helping automated warehouses around the world increase their storage density by 2-3 times without needing to expand their footprint. In this article, we will help you understand what ASRS is, how it operates, and why it is a necessary step for businesses looking to optimize their supply chain.
What is ASRS? Definition and Operating Principles
ASRS is a comprehensive automation system for storing and retrieving goods in an automated warehouse, operating based on the coordination of three main components:
- Racking System: Designed in a modular format, optimized for high-rise spaces, reaching heights of up to 20-30 meters.
- Automated Handling Equipment: Including devices such as Conveyors, Stacker Cranes, or 4-way Shuttle AGVs.
- Control Software: A combination of a Warehouse Management System (WMS) and a Warehouse Control System (WCS) to calculate optimal storage locations and coordinate retrieval in real-time.
When goods enter the warehouse, the software automatically determines the most suitable storage location based on size, weight, and inventory turnover frequency. When retrieval is needed, the system directs automated equipment to the exact location, picks the pallet, and delivers it to the delivery point—all without the need for manual human intervention.
Common Types of ASRS Today
In the international market, ASRS is typically categorized by the load unit handled and the method of retrieval. Each type is suitable for a different operational model:
| ASRS Type | Load Unit | Characteristics | Best For |
| Unit-load ASRS (Pallet-based, using Stacker Crane) | Full pallets, 500kg – 1,500kg capacity | Stacker crane moves in fixed aisles; handles large quantities of pallets at high speed. | Distribution centers, cold storage, large-scale raw material warehouses. |
| Mini-load ASRS | Totes/bins, capacity under 50kg | Compact equipment; retrieves by container instead of full pallets. | Component, spare parts, and pharmaceutical warehouses needing high precision. |
| Pallet Shuttle / Radio Shuttle System | Pallets, moving within each lane | Autonomous shuttle moves horizontally in lanes, combined with a lift for floor changes. | Warehouses with fewer SKUs but high volume per SKU (FIFO/LIFO). |
| Vertical Lift Module (VLM) / Carousel | Trays/bins in vertical or horizontal orientation | Goods are brought to the operator’s picking station instead of the person looking for goods. | Warehouses with limited space needing to store many small SKUs. |
| Cube Storage / Grid-based ASRS | Containers stacked in 3D grid; robots move on the grid surface | Highest storage density; no aisles or corridors needed. | E-commerce warehouses, fulfillment centers with diverse SKUs. |
In actual implementation in Vietnam, the Unit-load ASRS model combined with stacker cranes remains the most popular choice, as it suits the pallet-based nature of the manufacturing and logistics industries.
Why Do Automated Warehouses Need ASRS?
1. Maximizing Storage Density
This is the most obvious benefit ASRS provides. In traditional warehouse models, space for forklift aisles accounts for 40-50% of the warehouse area. ASRS eliminates the need for forklift aisles entirely, allowing businesses to maximize vertical height and floor space.
Based on our implementation experience, businesses adopting ASRS typically optimize storage space by 50-60% compared to traditional racking models on the same footprint.
2. Significant Reduction in Labor Costs
As manual labor becomes increasingly scarce and costs rise by an average of 10-15% annually, ASRS offers a sustainable solution. The system can operate 24/7 without depending on worker availability, helping businesses reduce warehouse operating staff by 60-70% compared to manual models.
3. Enhanced Accuracy and Reduced Errors
Errors in storage and retrieval—such as picking the wrong item or placing it in the wrong location—are the leading causes of losses for logistics businesses. ASRS operates based on fully digitized data, helping reduce error rates to below 0.5%, compared to the 5-8% average in manual management models.
4. Ensuring Stable Operations in Harsh Environments
Unlike human workers, ASRS equipment is designed to operate stably in a wide temperature range, from -25°C to 45°C. This is why ASRS is particularly suitable for cold storage serving the food and pharmaceutical industries, where manual labor faces many health and productivity limitations.
“Made in Vietnam” ASRS Solutions – The AUBOT Advantage
Many businesses still believe that “Made in Vietnam” automation solutions struggle to compete with imported technology from Europe or Japan. In reality, the opposite is true.
AUBOT has developed a Unit-load ASRS integrated with Double Deep racking systems, stacker cranes, and chain conveyors, achieving international standards in performance and precision while maintaining three advantages that foreign solutions struggle to match:
- Optimal Investment Costs: Through domestic production, we help businesses save significantly on initial investment costs compared to importing equipment and foreign experts.
- Immediate Technical Support: The AUBOT engineering team is on-site, handling incidents quickly instead of waiting for experts to fly in from abroad.
- Flexible Customization: We design solutions tailored to the specific characteristics of Vietnamese factories, rather than applying fixed, standardized templates.
Which Businesses Should Invest in ASRS?
Not every warehouse needs ASRS immediately. You should consider investing if your business is facing one of the following signs:
- Current warehouse area is insufficient to meet order growth rates.
- Warehouse labor costs account for a large portion of operating expenses.
- The error rate in warehouse inbound/outbound exceeds 3-5%.
- You need to operate cold storage or environments with special temperature requirements.
- You have plans to expand warehouse scale in the next 3-5 years.
If your business falls into this group, now is the right time to start seriously evaluating an ASRS investment.
Conclusion
ASRS is no longer a luxury technology only for large corporations. With the development of “Made in Vietnam” automated warehouse solutions, domestic businesses can fully access international-standard technology with reasonable investment costs and fast on-site support services.
AUBOT is proud to be a partner to many large corporations in the region, providing services from design and manufacturing to integration and long-term operation of ASRS systems. If you are looking for an automated warehouse solution that fits the scale and actual budget of your business, it is time to start a discussion with us.
Do you want to know how ASRS fits your current warehouse layout? Sign up for a free consultation and survey from the AUBOT engineering team today.
📞 Hotline: (+84)88 668 9887 🌐 Website: aubot.vn 📧 Email: sales@aubot.vn
