science

Mobile shelving

Mobile shelving is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mobile shelving rather than just read about it. In short: Mobile shelving (also called mobile aisle shelving, compactus, roller racking, or rolling stack) is a library stack, or another shelving or storage unit, fitted with wheeled traction systems. Units can be closely packed when access is not required, but can be readily moved to open up an aisle to allow access.

Key takeaways

Mobile shelving belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Mobile shelving to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Mobile shelving from memory before moving on to harder problems.

Reference excerpt

Mobile shelving (also called mobile aisle shelving, compactus, roller racking, or rolling stack) is a library stack, or another shelving or storage unit, fitted with wheeled traction systems. Units can be closely packed when access is not required, but can be readily moved to open up an aisle to allow access. By eliminating the need for a permanently open aisle between every unit, a smaller proportion of floor space can be allocated to storage than in the case of conventional fixed shelving, or a higher capacity of storage can be met using the same footprint as fixed shelving. Each shelving unit is normally mounted on a level trackway (to eliminate gradients in the supporting floor), making it possible to move heavy units with minimal effort. Mobile shelving can be moved manually or by the use of electrical motors. The track/flooring can either sit on top of an existing floor or be integrated into raised access flooring allowing for a smooth transition between unit and surrounding floor levels.

Manual mobile shelving

Mobile storage systems are usually constructed with a rotary handle on the exterior accessible face. When rotated, the handle operates the mechanism which winds the single, connected, filing unit either left or right, depending on a clockwise or counter-clockwise rotation of the handle. In an office, for example, several stacks of movable filing cabinets may be accommodated in a limited space. Drive mechanisms vary; traditionally systems were offered with chain drive but modern technology allows belt drive systems which provides smooth, quiet operation. Although the "bays of shelving" that sit on the mobile chassis come in many standard sizes, they can be mixed to create run lengths of shelving to maximise the room length. The tracks can be installed onto many different types of floor and on different levels. The tracks themselves can either have a false floor running in between so that the tracks do not become trip hazards, or they can be put into the floor (usually concrete floor) or have small ramps on either side of the tracks. Either option creates a hazard-free floor and track system.

Powered mobile shelving

Powered shelving is electrically powered. Units normally have a small AC or DC motor hidden in the base that automatically moves the units when a single button is pressed. High-end versions connect into archiving databases, and using RFID allows the easy retrieval of archived items with auto-open and close functions.

Applications

Mobile aisle shelving is typically used for academic or commercial applications where a significant volume of physical archive material, filing or books is to be stored. These include medical or government records, file-intensive offices such as the legal or accountancy professions, and public and academic libraries and similar archives. Another common use is in retail stockrooms to maximise the stock capacity, or to reduce the back of house storage space required so that a greater proportion of the overall shop space can be used for customer retail purposes.

Capacity, siting and speed advantages A typical bank of mobile office shelving units offers close to a 50% reduction of floor space, or a 50% to 100% increase in storage space, compared to traditional filing cabinets. The ability to concertina individual units until touching means space is only required between units when they are being accessed by users. Applications with a greater number of simultaneous users may require more access spaces (aisles), thus not approaching this 50% target so closely. When the bank of units is closed, the contents are protected from light and dust, and the whole bank of units can be secured by locking the end unit(s) in place. This makes mobile shelving ideal for holding museum and archive collections.

References

External links "Video clip demonstrating operation of manual mobile shelving". 14 May 2007. Archived from the original on 20 December 2021. Retrieved 7 February 2013 – via YouTube. British Standards - BS EN 16893:2018 Conservation of Cultural Heritage. Specifications for location, construction and modification of buildings or rooms intended for the storage or use of heritage collections

Illustrations

Worked examples

Example 1 — a first encounter with Mobile shelving

Start with the simplest possible case. Write down what Mobile shelving claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mobile shelving before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mobile shelving ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mobile shelving

In research: Mobile shelving appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Mobile shelving in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Mobile shelving is common in secondary-school and first-year university syllabi. It links to neighbouring topics Archival science, Cabinets (furniture), Furniture, so understanding it makes those chapters shorter.
In everyday life: Look for Mobile shelving outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Mobile shelving” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Mobile shelving in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mobile shelving means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Mobile shelving out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mobile shelving in simple terms?

Why does Mobile shelving matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mobile shelving?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mobile shelving.