3. Introduction
•An automated storage and retrieval system (ASRS or AS/RS)
consists of a variety of computer-controlled systems for
automatically placing and retrieving loads from defined storage
locations.
• Automated storage and retrieval systems (AS/RS) are typically
used in applications where there is a very high volume of loads
being moved into and out of storage.
•Storage density is important because of space constraints no value
adding content is present in this process accuracy is critical
because of potential expensive damages to the load.
•AS/RS can be used with standard loads as well as nonstandard
loads
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4. Principle of operation
An automated storage/retrieval system(AS/RS) can be defined as
a storage system under which a defined degree of automation
is to be implemented to ensure precision accuracy and speed
in performing storage and retrieval operation. These
automated storage and mechanized system eliminate human
intervention in performing basic sets of operation that
includes:
• removal of an item from a storage location automatically
• transferring the above item to a specific processing or
interface point
• after receiving an item from a processing or interference
point, it is automatically stored at a predetermined location
5. TYPES OF AS/RS
• Several important categories of AS/RS can be distinguished based
on certain features and applications. The following are the principle
types :
Unit Load AS/RS
Mini Load AS/RS
Deep-lane AS/RS
Man-on-board AS/RS
6. Unit Load AS/RS
• The unit load AS/RS is used to store and
retrieve loads that are palletized or stored in
standard-sized containers.
• The system is computer controlled. The S/R
machines are automated and designed to
handle the unit load containers.
• Usually, a mechanical clamp mechanism on
the S/R machine handles the load.
• However, there are other mechanisms such as
a vacuum or a magnet-based mechanism for
handling sheet metal. The loads are generally
over 500 lb per unit. The unit load system is
the generic AS/RS.
7. Mini Load AS/RS
• This system is designed to handle small loads such as
individual parts, tools, and supplies that are contained in bins
or drawers in the storage system.
• Such a system is applicable where the availability of space is
limited.
• It also finds its use where the volume is too low for a full-
scale unit load system and too high for a manual system.
• A mini load AS/RS is generally smaller than a unit load AS/RS
and is often enclosed for security of items stored.
8. Deep-lane AS/RS
• This is a high-density unit load storage system that is
appropriate for storing large quantities of stock.
• The items are stored in multi deep storage with up to 10
items in a single rack, one load behind the next.
• Each rack is designed for flow-through, with input and
output on the opposite side.
• Machine is used on the entry side of the rack for input load
and loads are retrieved from other side by an S/R- type
machine.
• The S/R machines are similar to unit load S/R machine except
that it has specialized functions such as controlling rack-entry
vehicles.
9. Man-on-board AS/RS
• This system allows storage of items in less than unit load quantities.
• Human operator rides on the carriage of the S/R machine to pick up
individual items from a bin or drawer.
• The system permits individual items to be picked directly at their
storage locations.
• This provides an opportunity to increase system throughput.
• The operator can select the items and place them in a module.
• It is then carried by the S/R machine to the end of the aisle or to a
conveyor to reach its destination.
10. INSTALLED APPLICATION
• Installed applications of this
technology can be wide ranging. In
some libraries, such as
at University of Nevada, Reno
• library, such a system is employed
to retrieve books. Still others in use
involve retrieval of bicycles from
a bicycle tree, as in the case of
systems in Japan.
• Besides, it also use in industry to lift
pallet and lift heavy things to put at
a certain storage.
11. Mechanical
• Storage structure S/R(storage/retrieval) machine
• Storage modules pallets for unit loads
• One or more pickup-and deposit station
• External handling system
12. 1. Storage structure
• which is the rack framework
• made of fabricated steel
• supports the loads contained in the AS/RS
13. 2. S/R machine
• is used to accomplish storage transaction,
• delivering loads from the input station into storage,
• retrieving loads from storage and delivering
14. 3. Storage modules
• are the unit load containers of the stored material.
• include pallets, steel wire baskets and containers, plastic tote
pans
15. 4. Pick-and-deposit station
• is where loads are transferred into and out of the AS/RS.
• generally located at the end of the aisles for access the
external handling system that brings loads to the AS/RS and
takes loads away. </li></ul>
16. 5. External handling system
• brings loads to the AS/RS and takes loads away.
• ex:RTV(Robotic Transfer Vehicle)
17. Advantage
An effective automated storage and retrieval system provides
several benefits for supply chain management :
• An efficient AS/RS system helps companies cut expenses by
minimizing the amount of unnecessary parts and products in storage,
and improving organization of the contents of a warehouse.
• Automation reduces labor costs while lowering workforce
requirements and increasing safety.
• Modeling and managing the logical representation of the physical
storage facilities. For example, if certain products are often sold
together or are more popular than others, those products can be
grouped together or placed near the delivery area to speed up the
process of picking, packing and shipping to customers.
• Enabling a seamless link to order processing and logistics
management in order to pick, pack, and ship product out of the
facility.
19. Conclusion
• AS/RS is in use and can be used many kinds of manufacturing
line & distribution centers.
• Using AS/RS with proper design will produce above mentioned
many kinds of benefits