Tags |
|
|
Links |
|
|
Digg it UP - Seven Steps To Selecting The Right Air Cylinder
Pallet racks can usually be simply defined as multi-level structured units used to hold stacks of heavy pallets that are a popular means of storage for literally any industry. With storage space getting more and more expensive, optimum space utilization has become a necessity. This is why pallet racks have been modified to mobile pallet racks.As the number of aisles can be reduced to a minimum, mobile pallet racking system saves a considerable amount of the space. Also, the direct accessibility to each pallet is an added advantage with this type of system. Mobile pallet racks are often used in freezer and cold stores, where the space utilization is the most important factor.Each rack is mounted on a mobile base frame. The height of the base frame is normally limited to 245mm. The number of motors spread in the base frame ens
As referred to earlier, if you can avoid stopping the cylinder by having the piston "bottom out" inside the barrel, good. This will increase cylinder life. If this isn't practical, your cylinder caps can usually have cushion vents installed which, when adjusted, trap and slow the exhaust of a small amount of air from inside the cylinder as the piston reaches end of stroke. This provides a cushion to lessen the impact of the piston to the end cap.
Where is it?
If the application requires knowledge of load position, proximity sensing devices can usually be added to the barrel of the cylinder. They will "make" when a magnet on the piston inside the cylinder passes them. Since the distance from the magnet to end-of-rod is known, this will locate the load.
There are a variety of position sensing options for cylinders including reed switches, hall effect switches, linear potentiometers, or you can elect to sense the position of the load itself by using a barrel proximity switch mounted so that the switch "makes" as the load itself arrives.
If you need position sensing, make sure the cylinder you choose has that capability both in terms of magnets on the piston, and external mounts for the switch itself.
And there you have it - six steps to finding the right cylinder. Good luck in yo
With all things considered, there is really not much choice but to accept credit cards online. This makes it much more convenient for not only the customer, but yourself as well. Because of the necessity of accepting credit cards online, it is important that you know the options available to you to accept credit cards. On top of that, you need to know which the better fit for your business is.There are two methods of accepting credit cards online, using your own merchant account or going through a third party merchant. They both have their advantages and disadvantages, making it all the more important that you know what they have to offer.In order to set up your own merchant account, you need a bank to approve the opening of the account. When you go through a third party account, it is simply a company that is accepting
How much force do you need to move the object you wish to move?
You'll need to know the weight of the object. Consider what the object being moved is sliding and know that this friction is adding to the load.
Oversize the required force of the cylinder by 25% to take into account friction of the rod and piston seals within the air cylinder itself, and also allowing a safety margin as it relates to the expected load the cylinder will see.
Know your available air pressure (example: 90 PSI) and multiply that times the surface area of the piston inside the cylinder to get the theoretical output force of the cylinder.
If you multiply 3.14 x the radius - in inches -squared this equals the surface area of the piston in square inches.
Since cylinders only come in certain bore sizes, default to the standard cylinder bore that's the next size up if none are exactly the bore diameter calculated. Note that the size of the outside of the cylinder on some types has no real bearing on what the piston diameter inside the cylinder is.
How far do you wish to move the object?
If you wish to move the object five inches, it's logical to think that the cylinder piston / rod travel needs to be five inches. It could be that simple. It might not be. Take into account the size of the object that's to be moved to be sure that the object itself doesn't impact on the cylinder rod cap on retract.
You may wish to consider a cylinder with a longer stroke than required so that the piston of the cylinder can be stopped inside the barrel by having the object itself stop the movement. This stops the piston from "bottoming out" on either cap of the cylinder itself. Depending on the cycle speed, this may increase cylinder life.
Take into account how you are connecting your load to the cylinder rod. If using a clevis of some sort, take that dimension into account. Regardless of what is attached to the end of the rod, the rod itself can only move the distance that the piston inside the cylinder can move. That's all the stroke distance you have to work with.
How will you attach your object to the cylinder rod?
Careful, if you screw the object onto the rod thread directly. Make sure that the "load" and the rod are aligned.
A rod clevis is a "sloppy" connector that screws onto the end of the rod thread. Bolt the other half to your object, and the two halves are connected in the center via a cotter pin of sorts.
This "sloppy" type of connector forgives some misalignment between the rod travel and the object movement for if the object is too far off the axis of the rod, you will very quickly encounter problems with the air cylinder.
There are alignment couplers commercially available that will further absorb misalignment between load and rod. For extreme misalignment cases, the load can be installed on rods external to the cylinder, removing almost all side-load from the rod itself.
Note that there are standards in rod thread size which change depending on the bore size of the cylinder.
Further, the rods themselves can be modified to reduce the size of the thread, to change the type of thread, to make the rod end a female thread, or to replace the standard rod thread with a stud that can, if the stud breaks, be removed and replaced at minimal cost to parts and downtime.
How will you attach the cylinder to your machine?
Depending on the type and size of cylinder there are many options of unique and standard mounts.
Most cylinders come with integral mounting of some sort, whether it's a rod-cap thread, a rear-cap thread, a rear tang for a clevis mount, threaded holes into which bolts can be turned, front or rear flanges, trunnion mounts...and so on. It depends on the type of cylinder.
Remember, if the load that's being moved is not aligned with the rod travel, you will have problems. Therefore, the type and location of load will help determine the type of cylinder mount too.
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod diameter and rod threads, and the port sizes.
NFPA cylinders are imperial dimensions and imperial threads, ISO cylinders are metric dimensions and threads.
You need to consider the conditions into which the cylinder will be installed to determine if you need specialty materials in their construction. Also, specialty seals may be required in corrosive, low or high heat environments.
Cushions?
As referred to earlier, if you can avoid stopping the cylinder by having the piston "bottom out" inside the barrel, good. This will increase cylinder life. If this isn't practical, your cylinder caps can usually have cushion vents installed which, when adjusted, trap and slow the exhaust of a small amount of air from inside the cylinder as the piston reaches end of stroke. This provides a cushion to lessen the impact of the piston to the end cap.
Where is it?
If the application requires knowledge of load position, proximity sensing devices can usually be added to the barrel of the cylinder. They will "make" when a magnet on the piston inside the cylinder passes them. Since the distance from the magnet to end-of-rod is known, this will locate the load.
There are a variety of position sensing options for cylinders including reed switches, hall effect switches, linear potentiometers, or you can elect to sense the position of the load itself by using a barrel proximity switch mounted so that the switch "makes" as the load itself arrives.
If you need position sensing, make sure the cylinder you choose has that capability both in terms of magnets on the piston, and external mounts for the switch itself.
And there you have it - six steps to finding the right cylinder. Good luck in you
Corporate fruit gift baskets packed with ripe organic fruits and gourmet food items are excellent gifts reflecting good taste and are a truly healthy treat. Corporate fruit gift baskets that are professionally handcrafted are ideal to convey your congratulatory wishes on a promotion, welcome a new customer, commemorate a new sale, or show appreciation for a task accomplished.Corporate fruit gift baskets are packed with the freshest fruits available. The best of seasonal fresh fruit such as apples, oranges, bananas, nectarines, mangos, kiwis, grapes, pineapple and pears can be included in these baskets. Some of the corporate fruit gift baskets are shipped directly from the grower. This ensures that the recipients will receive their fruit gift baskets fresh. Dry fruits and nuts of the highest quality such as pistachios, walnuts, almo
You may wish to consider a cylinder with a longer stroke than required so that the piston of the cylinder can be stopped inside the barrel by having the object itself stop the movement. This stops the piston from "bottoming out" on either cap of the cylinder itself. Depending on the cycle speed, this may increase cylinder life.
Take into account how you are connecting your load to the cylinder rod. If using a clevis of some sort, take that dimension into account. Regardless of what is attached to the end of the rod, the rod itself can only move the distance that the piston inside the cylinder can move. That's all the stroke distance you have to work with.
How will you attach your object to the cylinder rod?
Careful, if you screw the object onto the rod thread directly. Make sure that the "load" and the rod are aligned.
A rod clevis is a "sloppy" connector that screws onto the end of the rod thread. Bolt the other half to your object, and the two halves are connected in the center via a cotter pin of sorts.
This "sloppy" type of connector forgives some misalignment between the rod travel and the object movement for if the object is too far off the axis of the rod, you will very quickly encounter problems with the air cylinder.
There are alignment couplers commercially available that will further absorb misalignment between load and rod. For extreme misalignment cases, the load can be installed on rods external to the cylinder, removing almost all side-load from the rod itself.
Note that there are standards in rod thread size which change depending on the bore size of the cylinder.
Further, the rods themselves can be modified to reduce the size of the thread, to change the type of thread, to make the rod end a female thread, or to replace the standard rod thread with a stud that can, if the stud breaks, be removed and replaced at minimal cost to parts and downtime.
How will you attach the cylinder to your machine?
Depending on the type and size of cylinder there are many options of unique and standard mounts.
Most cylinders come with integral mounting of some sort, whether it's a rod-cap thread, a rear-cap thread, a rear tang for a clevis mount, threaded holes into which bolts can be turned, front or rear flanges, trunnion mounts...and so on. It depends on the type of cylinder.
Remember, if the load that's being moved is not aligned with the rod travel, you will have problems. Therefore, the type and location of load will help determine the type of cylinder mount too.
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod diameter and rod threads, and the port sizes.
NFPA cylinders are imperial dimensions and imperial threads, ISO cylinders are metric dimensions and threads.
You need to consider the conditions into which the cylinder will be installed to determine if you need specialty materials in their construction. Also, specialty seals may be required in corrosive, low or high heat environments.
Cushions?
As referred to earlier, if you can avoid stopping the cylinder by having the piston "bottom out" inside the barrel, good. This will increase cylinder life. If this isn't practical, your cylinder caps can usually have cushion vents installed which, when adjusted, trap and slow the exhaust of a small amount of air from inside the cylinder as the piston reaches end of stroke. This provides a cushion to lessen the impact of the piston to the end cap.
Where is it?
If the application requires knowledge of load position, proximity sensing devices can usually be added to the barrel of the cylinder. They will "make" when a magnet on the piston inside the cylinder passes them. Since the distance from the magnet to end-of-rod is known, this will locate the load.
There are a variety of position sensing options for cylinders including reed switches, hall effect switches, linear potentiometers, or you can elect to sense the position of the load itself by using a barrel proximity switch mounted so that the switch "makes" as the load itself arrives.
If you need position sensing, make sure the cylinder you choose has that capability both in terms of magnets on the piston, and external mounts for the switch itself.
And there you have it - six steps to finding the right cylinder. Good luck in yo
Think back to high school. Remember the week before your summer holidays started? You couldn't wait to kick off your summer holidays. Fast forward ten weeks later. You were looking forward to starting a new school year, to seeing all of your friends again, and, most importantly, you were looking forward to getting off to a good start and finishing the year with good grades. When the last school year ended, you were tired of it; when the new school year started, you were fresh and alert.Now you work. No more summers off. No more time off at Christmas. Maybe you've worked for years without a holiday. You might be burnt out. But you still work. Maybe your company forces you to overwork yourself.Would you agree that the way you're working, you're probably not as productive as you could be if you just had more energy? Longer vaca
There are alignment couplers commercially available that will further absorb misalignment between load and rod. For extreme misalignment cases, the load can be installed on rods external to the cylinder, removing almost all side-load from the rod itself.
Note that there are standards in rod thread size which change depending on the bore size of the cylinder.
Further, the rods themselves can be modified to reduce the size of the thread, to change the type of thread, to make the rod end a female thread, or to replace the standard rod thread with a stud that can, if the stud breaks, be removed and replaced at minimal cost to parts and downtime.
How will you attach the cylinder to your machine?
Depending on the type and size of cylinder there are many options of unique and standard mounts.
Most cylinders come with integral mounting of some sort, whether it's a rod-cap thread, a rear-cap thread, a rear tang for a clevis mount, threaded holes into which bolts can be turned, front or rear flanges, trunnion mounts...and so on. It depends on the type of cylinder.
Remember, if the load that's being moved is not aligned with the rod travel, you will have problems. Therefore, the type and location of load will help determine the type of cylinder mount too.
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod diameter and rod threads, and the port sizes.
NFPA cylinders are imperial dimensions and imperial threads, ISO cylinders are metric dimensions and threads.
You need to consider the conditions into which the cylinder will be installed to determine if you need specialty materials in their construction. Also, specialty seals may be required in corrosive, low or high heat environments.
Cushions?
As referred to earlier, if you can avoid stopping the cylinder by having the piston "bottom out" inside the barrel, good. This will increase cylinder life. If this isn't practical, your cylinder caps can usually have cushion vents installed which, when adjusted, trap and slow the exhaust of a small amount of air from inside the cylinder as the piston reaches end of stroke. This provides a cushion to lessen the impact of the piston to the end cap.
Where is it?
If the application requires knowledge of load position, proximity sensing devices can usually be added to the barrel of the cylinder. They will "make" when a magnet on the piston inside the cylinder passes them. Since the distance from the magnet to end-of-rod is known, this will locate the load.
There are a variety of position sensing options for cylinders including reed switches, hall effect switches, linear potentiometers, or you can elect to sense the position of the load itself by using a barrel proximity switch mounted so that the switch "makes" as the load itself arrives.
If you need position sensing, make sure the cylinder you choose has that capability both in terms of magnets on the piston, and external mounts for the switch itself.
And there you have it - six steps to finding the right cylinder. Good luck in yo
"If...you can't be a good example, then you'll just have to be a horrible warning." Catherine AirdDo people willingly want to follow you? The real test of leadership is influence. Would your subordinates describe you as an effective manager, supervisor or team leader? Be honest with yourself. Put yourself in their shoes. Would you want to work for YOU?! If your employees' pay, perks and benefits were not dependent on doing what you ask, would they still want to follow you? If the answer is yes, you are truly a role model of leadership.In conducting leadership training around the world for over a decade, here are the key traits I hear over and over that employees want to see in their leaders. And most of these employees are managers themselves.These traits will sound familiar to you. Yet, we need to be reminded of them. Many
What type of cylinder?
Some choices are:
Usually, as the bore size of the cylinder gets larger the style opted for is a repairable type, as more money will be spent on acquiring the cylinder therefore the cost for repair becomes a smaller percentage of the overall cost. It's hard to get excited about trying to fix a $80.00 cylinder when the parts cost $30.00 and it will take a worker two hours to fix it. On the other hand, if the cylinder costs $500.00 - a different story.
As the bore size of the cylinder changes, so too will the rod diameter and rod threads, and the port sizes.
NFPA cylinders are imperial dimensions and imperial threads, ISO cylinders are metric dimensions and threads.
You need to consider the conditions into which the cylinder will be installed to determine if you need specialty materials in their construction. Also, specialty seals may be required in corrosive, low or high heat environments.
Cushions?
As referred to earlier, if you can avoid stopping the cylinder by having the piston "bottom out" inside the barrel, good. This will increase cylinder life. If this isn't practical, your cylinder caps can usually have cushion vents installed which, when adjusted, trap and slow the exhaust of a small amount of air from inside the cylinder as the piston reaches end of stroke. This provides a cushion to lessen the impact of the piston to the end cap.
Where is it?
If the application requires knowledge of load position, proximity sensing devices can usually be added to the barrel of the cylinder. They will "make" when a magnet on the piston inside the cylinder passes them. Since the distance from the magnet to end-of-rod is known, this will locate the load.
There are a variety of position sensing options for cylinders including reed switches, hall effect switches, linear potentiometers, or you can elect to sense the position of the load itself by using a barrel proximity switch mounted so that the switch "makes" as the load itself arrives.
If you need position sensing, make sure the cylinder you choose has that capability both in terms of magnets on the piston, and external mounts for the switch itself.
And there you have it - six steps to finding the right cylinder. Good luck in yo
The PrincipleI remember reading about the Rhino Principle in Forbes Magazine a few months ago. The basic theme behind it is doing what the rhino does best: Charge! The rhino as an animal has survived for so many years because of its undying single-mindedness and natural aggressiveness towards achieving a single goal. The rhino is not particularly clever, nor is it unsusceptible to the other animals in the Savannah. However, it takes initiative when it sees something it wants and leaves all other thoughts of pessimism or doubt behind. Apply this same mindset in your own lives, whether it is as an entrepreneur or in any other aspect of your life. Take on that project you’ve been procrastinating on for months or ask that girl you’ve been meaning to talk to in your Chemistry class. Focus on a single goal and put all your energy into re
As referred to earlier, if you can avoid stopping the cylinder by having the piston "bottom out" inside the barrel, good. This will increase cylinder life. If this isn't practical, your cylinder caps can usually have cushion vents installed which, when adjusted, trap and slow the exhaust of a small amount of air from inside the cylinder as the piston reaches end of stroke. This provides a cushion to lessen the impact of the piston to the end cap.
Where is it?
If the application requires knowledge of load position, proximity sensing devices can usually be added to the barrel of the cylinder. They will "make" when a magnet on the piston inside the cylinder passes them. Since the distance from the magnet to end-of-rod is known, this will locate the load.
There are a variety of position sensing options for cylinders including reed switches, hall effect switches, linear potentiometers, or you can elect to sense the position of the load itself by using a barrel proximity switch mounted so that the switch "makes" as the load itself arrives.
If you need position sensing, make sure the cylinder you choose has that capability both in terms of magnets on the piston, and external mounts for the switch itself.
And there you have it - six steps to finding the right cylinder. Good luck in your hunt.
HTTP = HTML link (for blogs, profiles,phorums):
<a href="http://www.diggitup.net/article/3261/diggitup-Seven-Steps-To-Selecting-The-Right-Air-Cylinder.html">Seven Steps To Selecting The Right Air Cylinder</a>
BB link (for phorums):
[url=http://www.diggitup.net/article/3261/diggitup-Seven-Steps-To-Selecting-The-Right-Air-Cylinder.html]Seven Steps To Selecting The Right Air Cylinder[/url]
Related Articles:
Reverse Vending Machines - What Are They
The Freight Forwarding Industry Cleans Up Its Act
Bookmark it:
|