Warehouse Racking 101 - Basic Rack Styles and the 5 Questions You Must Ask

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There are so many types, variations, and factors involved in decision-making process, and now more than ever before elections rack style storage for your products is becoming less and less obvious as the storage and operations development. AGV (Automated Guided Vehicles) are the latest example of the elements that were introduced in mix.Najčešći types of storage shelves are available:

1 tears shelf
Second structural policies
Third Single-deep selective rack
4th Double deep selective rack
5th Pushback
6th Drive in / Drive-thru
7th Portable stands or "Stack Rack"
8th Gravity flow rack
9th Cantilever

Many other options exist for storage products, including shelving, mobile shelving, and mezzanines, but because of the "101" style, of course, we'll stick to the basics. (For additional information about other options for storing goods, see my previous article on how to save warehouse space -. Seven proven strategies) to start the process of elimination for the object, we must first ask the right questions

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The first step: Detected

1 What is my product?

type or number of products or services the company offers can vary greatly. The dedicated production environment, for example, perhaps no more than 3-5 SKU (Stock Keeping Unit) exists. However, 3PL (third party logistics, and contract warehousing, service) can have thousands of SKUs, depending on any number of factors. For example, how many customers are dealt with in that one building? Or is it the place dedicated to one customer? How many products each customer at this location? Does the 3PL specialize in only one type of product storage and handling?

type of products is a key factor. Whether the product is stored in barrels, containers, bags, or pieces of cardboard boxes? Is it lined? What are dimension when it is loaded? How much weight? Is the product more palettes?

with so many questions, we need to start by saying that, if possible, the floor-stacking your product, the act of stacking on pallets on top of another product, is the single best way to use due to cost and storage density. Floor-agreement does not require the purchase of storage racks, which takes up valuable storage space, making it the preferred method of 3PL is everywhere (unfortunately a lot of pallet rack manufacturers and distributors!) Ability to floor-based product stack nastabilnost loaded pallets in combination with product capacity for the treatment of weight without buckling themselves. But even if you can handle the weight, floor-stacked product should not exceed four pallets for stability purposes.

If your business is not 3PL, or if the ground-stacking your product is not possible, then you need to assess exactly what it is you are looking for storage. How many different SKU's do you have? How each SKU is at any time? What are the size of each SKU? Does 80% of your job to draw 20% of the total SKUs? All these responses play a role in determining your racking needs.

Also, the intelligent designer of the plan not only for the total maximum amount, but will also add 20% -30% on the figure to be considered for future company growth. While pallets sitting empty for several years waiting for the company to grow as a waste of space, using equipment that is designed to expand with you wherever it is always an intelligent choice.

2 What is my bandwidth and speed?

Basically, how many products (raw materials, finished, and in mid-process) goes through your property at any time, where your product goes inside the building and how fast your product moves from receiving to shipping? Does any of this to sit for awhile before it ships? You have ten trucks transport the product back and forth at any moment in time or your company has only one forklift driver? Are you a manufacturing plant using a "just in time" process? Does your product expire? If you use the FIFO (first in, first out) or LIFO (last in, first out) or not?

3 Material Handling Equipment What do I have?

single best question for the moment is this: Are my trucks will determine rack and use of, or the rack and use will determine the trucks can get? Where you are in the process? If you already have (and locked in) trucks have (or acquire,), and then simply work within the boundaries and limitations of the equipment.

If, however, have the luxury of an enviable position in the selection of forklift and storage methods used, and then only limitation you have is your existing budget. If you are unable to buy new (or even used) truck, then ask yourself if you have to wait.

I understand that the material handling equipment you use is important in this decision. Believe it or not, I once heard of a situation in which the rack sales rep does not ask about or look at the type of forklift that his client was using, and when double deep racking is proposed, fresh-out-of-school warehouse manager does not think about it was. Thank God that the project never made past "letter of intent" stage, as they wheel sit truck would have a hard picking a product from the second (two deep) pallets without the scope of the mechanism!

4 How much room do I need?

must go beyond dimensions (length) x (width) x (height). Forklift limitations described in Question # 3 should be taken into account, including the right angle stack aisle width approval is required for safe stand interactions. Also, consider placing your other equipment (machines, battery charging, packaging area), as well as shipping and receiving areas.

Do you need to make more space? See my previous article on how to save warehouse space -. Seven proven strategies here

5 How much flexibility do I need?

savvy warehouse layout planner will realize that the only constant in business (excluding taxes) is change. This includes the product size, volume, flow and speed, or even moving the object or consolidation. You have to take into account that today's product can be garbage tomorrow. Flexibility is an absolute must when considering alternatives for storage.

questions to ask are: How quickly can I change this stand? What changes do I have with these restrictions? If you need to change the storage of equipment, that in this sense, my handling equipment (lift trucks, etc. ..)? How much time do I have to change gear over if my product changes? What is the lead time to a new rack?

additional advice: Whenever you are looking to order something new, whether it's money, trucks, or office supplies, get the lead time. Always, always, always get the lead time. When that time frame, you can then work backwards from the longest lead time as possible to the last day you can make a decision about the project. For example, if the first date July, you need a new pair warehouse delivered and installed by 1 September delivery lead times are 4-6 weeks out and the project will be an entire week to install, and then the last day for you that the decision will be 7 weeks before the first September and 14 July

If you want to factor in the Murphy Act, as well as savvy stock looks planner will do, you will make your Decision 7 July

The next step: Solutions

Now that you have answers to the questions, we can now move on to what type of storage solution might work best. Again, there are other options available, all options should be explored, but we'll stick to mostly the sake of simplicity.

1 Tears racking

tears and Structural Racks (# 2 below) are the methods of storage, they are different designs of rack, but two different styles may not be covered because there are differences in the capacities and troškove.Suze design of drilled holes in the rolls rack-formed in the shape of upside suza.Grede the locking device that slides into a large hole in the frame and sit down at your place. The holes are usually spaced 2 "apart from offering space and flexibility of installation method will save you money on the labor required for assembly of racking.

Most tear style rack manufacturers make each rack, which means a manufacturer of racks can be used with the other. This means that they're not "locked in" at any given rack manufacturer that offers you flexibility later on down the line. It is also the most sought after racking between the two, which means if you want to offer your stand on the market use later down the line, you can be sure, more than likely, it will be demand for it, if it is in good shape.

2 Structural racking

structural design of the rack is designed for heavy-duty steel aplikacije.Jači design is used, the beams are bolted to the uprights or frame instead of being slid into place. Although the structural steel to provide a stronger stand module with a higher capacity, it is expensive compared to the tears and the purchase of equipment and installations. Structural policies have their place, and in some cases may be required. Ask a qualified consultant to assist in determining their needs.

3 Single-deep selective rack

This is, by far, the most common storage solution I see, and for good reason. One deep selective rack interact with most, if not all types of trucks, can fit in almost any environment, and offers the most flexibility. Although this is not the most efficient use of surface area available to the highest rates in the selectivity. You can always select any range at any time, anywhere in a deep selective rack.

4 Double deep selective rack

offer more storage density (up to 40% more than a deep selective rack in some applications) is the only real drawback to double-deep storage rack is a need for specific types of forklifts, reach trucks kamion.Doći types of specialty trucks that designed primarily for stand interactions and product staging for loading or pallet pick-up the receipt. High bandwidth and speed of operation will benefit the most from this store as a way of setting this usually requires a dedicated truck, such as four-wheel trucks sitting and walkie-riders, who can deal with most other timber traffic through the whole house.

If you have a high ceiling, it stands also provides a larger module footprint of a deep shelf, allowing for a more stable system, and some reach trucks can now raise the range to 37 'tall! Total available square footage must be weighed in relation to the total number of SKUs but the selectivity decreases.

5 Pushback

LIFO applications, pushback racking systems can usually go anywhere two to five pallets deep. Pallets are placed by forklift on your weight under control within the pairs title. If the product is already in the cart and the space available behind her truck (pallet) is pushing the cart back and a new range puts the cart before the original timber. Unloading pallets simply works in reverse, with a full cart behind picked pallets move forward after he picked up a pallet unloaded off the shelves.

selectivity decreases, but the pallet storage density increases. Low to mid range SKU counts most here.

6 Drive in / Drive-thru

Low SKU, high-density solution that can be used for LIFO (Drive-In) and FIFO (Drive-thru) storage methods. Driving to / thru modules used rails that act as a range of supports, and run as deep as the system provides, eliminating aisles and thus increases the density and the cube of use. One problem with this method of storage is called "Honeycombing", while a slot can be used by the UN to the range front (or behind) the spots are removed.

Where pushback racking offers more versatile than for storage drive in / thru racks because each lane runs independently, Drive In / Thru can have a maximum density of stored data between the two solutions. There is a trade-off, a qualified consultant can provide answers.

7 Portable stands or "Stack Stand"

programs without fixed shelf design requirements, changes in the available rack space, volatile storage needs, granular product is stored in large bulk bags, or other special products may require a portable or "stand stack." This is a great demand for low-to mid-speed range and bandwidth applications such as no longer limited to a specific rack design. When not in use (and depending on design), these stands are usually stack and nest in it for easy storage.

8 Gravity flow rack

Flow rack is a specialty type of shelf mostly located in the pick module in a FIFO system, but is also found in bulk racking systems as well.

In a typical bulk rack modules, pallets are loaded in the module on the back end, and the range of "flow" through the flow rails to the end before picking, automatically rotating the stock. This system works best with low to mid range of the number of SKUs (depending on available space), and is one of the most dense storage methods available. Usually the number of trucks and manpower can be reduced using this technique as well.

In a typical pick module system, the flow of the bottom row of racks and racks of high levels of "complementarity". The entire range down from the level of replenishment, and loaded into the back of the system. They then flow via gravity to the front or face of which is to pick the area. Pickers are directed through to pick up tickets (or a pick to light or other similar system) pick off pallets or cardboard pieces and fill the order because it goes through a series of conveyors.

9 Cantilever

Cantilever racking is another specialty of the types of policies. It is found in the production of lumber or feet first, but it can be used anywhere long product is stored. This may include drywall, plywood or metal sheets, steel rods are used in processes, tubular products or any other elongated material.

extra tip: When planning the placement of products in stock, use the 80/20 rule mentioned earlier. Usually 80% of your business comes from 20% of its products. Account for this by placing 20% of the product is on the shipping, processing, or picking areas. Set the least used product in the range of positions that are furthest away, and then work your way in to help in planning.

This information should serve as a guide and an excellent starting point for anyone who wants to lay out a plan warehouse floor. In the coming weeks, I will go to any kind of police with more details to help with the intricacies of each style.

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