ASRS 101 Guide for




ASRS 101 Guide for Beginner

ASRS 101 Guide for Beginner

Mar 07, 2024

Automated storage and retrieval systems (ASRS) are integral to the warehousing industry, offering efficient solutions for storing and retrieving goods. Whether you're exploring how these systems function or considering an investment, this comprehensive guide will cover everything you need to know.


An ASRS, also known as AS/RS, is a technology controlled by computers or robots, facilitating the retrieval and storage of inventory in defined warehouse locations. These systems offer numerous benefits, including space-saving, enhanced picking accuracy, and improved efficiency. ASRS can be integrated with various warehouse software solutions, such as Warehouse Management Software (WMS) and Warehouse Execution Software (WES), to monitor and control warehouse operations effectively.


ASRS finds applications across various industries, including manufacturing, warehousing, and distribution. They revolutionize workflow and resource utilization in industries ranging from automotive and manufacturing to retail and pharmaceuticals.


The different applications of ASRS include:


1. Point of Use Inventory: ASRS optimizes workflow by safely storing inventory and swiftly retrieving it as needed. Integration with Warehouse Execution Software (WES) ensures optimal picking, packing, and shipping strategies for each order.


2. Goods-to-Person in the Picking and Packing Process: Manual processes are time-consuming and prone to errors. ASRS eliminates physical movement by using shuttles, carousels, or cranes to retrieve goods and deliver them to designated workstations, considering factors like size, weight, and floor plan.


3. Buffer Storage Management: ASRS efficiently manages buffer stock, ensuring a steady supply of necessary items while reducing travel time and securing inventory from potential theft.


4. Order Fulfillment: ASRS streamlines warehouse operations by retrieving ordered goods and holding them in buffer storage, ensuring timely delivery to customers.


There are nine main types of ASRS:


1. Unit-Load ASRS: Suitable for bulky and heavy loads, including pallets and cases.

2. Mini-Load ASRS: Ideal for small-space facilities with multiple stock-keeping units (SKUs).

3. Robotic Shuttle-based ASRS: Uses robotic shuttles to deliver items without human intervention.

4. Robotic Cube-based Storage: Utilizes a three-dimensional grid of cubes to store and retrieve items.

5. Floor Robots: Automated guided vehicles (AGVs) or autonomous mobile robots (AMRs) transport inventory within the warehouse.

6. Horizontal Carousel-based ASRS: Features rotating bins for high-speed picking in low-ceiling environments.

7. Vertical Carousel-based ASRS: Consists of carriers that rotate vertically to deliver stored goods.

8. Vertical Lift Module ASRS: Uses an inserter/extractor and a tray column for goods-to-person retrieval.

9. Micro-Load Stocker: Ideal for high-density warehouses, providing buffering, sequencing, and point-of-use goods storage.


ASRS offer numerous benefits, including making use of existing vertical and horizontal space, improving efficiency, enhancing employee safety, increasing productivity, improving picking accuracy, optimizing inventory control, and speeding up order fulfillment from receiving to shipping.


In conclusion, ASRS represent a critical technology in modern warehousing operations, offering a range of solutions to improve efficiency, accuracy, and overall productivity.

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