Engineering Tips:

 
Choosing the Right Leveling Device
 
 
 

Leveling devices are also known as leveling feet, leveling mounts, leveler bolts, antivibration pads, antivibration mounts, Level-It mounts, Level-It pads, machinery mounts, levelers, leveling devices, Glide-Rite mounts, Glide-Rite pads, machine feet, articulating feet, machinery foot, leveling foot, and swivel mounts. These simple devices support your machine, and therefore, are as varied in design as machines themselves.

Will the equipment be motionless or will it involve vibration that needs to be controlled? How much weight must the feet support? What type of floor will the machine stand on, and will the environment be wet, hot, caustic, sterile? Let's talk about some of these considerations and how they affect your choice for best leveling device.

First, the two basic styles are:

Tapped type: These are mounts that have a tapped hole for attaching to a threaded fastener, i.e, the "female" style. Your advantage is a lower profile, but what you lose is the ability to adjust the height, as you would with a stud type. Pictured to the right for illustration is a tapped version of the Ny-Lev mounts we manufacture right at J.W. Winco. Ny-Lev tapped
Ny-Lev stud Stud type: These types of leveling feet have a threaded stud for both attachment and leveling. The stud is easy to attach, and the position can be locked using a jam nut, typically included. Standard stud lengths are available, and you also have the option of cutting the stud to length. Shown here to the left is the stud version of our Ny-Levs. We offer tapped and stud Ny-Levs in inch and metric sizes, in many base sizes, stud lengths, and different threads.

Second, choose your materials. In the interest of strength, in most cases the socket (tapped type) or stud is made of metal. However, the base material varies:

Plastic base: Pros are the lighter weight and reduced cost. Also can add vibration control. Cons are reduced load tolerance and durability. Shown on the right is the GN 343.4, a technopolymer plastic base alternative to our Ny-Levs. GN 343.4
GN 340 Metal base: Supports heavier loads and provides greater durability. Downside is you are adding more weight than with a plastic base. Also, you'll have poor vibration control unless you also add a vibration-dampening pad. Here on the left you see the GN 340 steel base leveling mount, offered with or without an elastomer pad like so many of our levelers.
Stainless steel: For food industry,medical, and other sterile applications, you may need a stainless steel base or all-stainless steel leveling mount. Many of our levelers are offered in stainless steel versions. We also have a special mount for sanitary applications, the GN 341.1 that you see pictured here on the right. GN 341.1

Now consider some special features:

Snap-Lock Non-skid: If slipping and sliding of the machine is a concern, you may want to add a non-skid pad to your leveling foot. Many of the mounts in our offering include this option. We also offer the Snap-Lock mount, pictured to the left, which is designed with a special snap-on non-skid pad that resists peeling off.
Swivel-ability: Whether tapped or stud type, these types of levelers include a bearing surface or other means for the base to swivel up to 15° off axis on uneven surfaces. This allows the leveling mount to adjust to uneven surfaces for maximum surface contact and greatest possible stability of equipment. Many of our levelers offer the swivel feature, like the Level-It mount, shown here on the right. Level-It
Anti-Vibe Anti-vibe/heavy duty: Of course your choice of leveler will be determined in part by the weight of the machine it must support. Our leveling mounts dimensional tables also include load information. A corollary issue to load is the amount of vibration the machinery generates. If vibration is a concern, look for mounts designed to be "anti-vibration," like our Anti-Vibe line, sample pictured here on the left.
Got an extreme situation like drill presses, CNC equipment, stamping presses or injection molding equipment? You may require a mount designed for super high vibration, like our "Mighty Mount" levelers, example shown here to the right. Mighty Mount
PolyMount Anchorable mounts: All types of levelers can offer lag bolt holes, enabling the leveling foot to besecured to the floor or platform with bolts. There is also the option of a specially configured base (teardrop shape) with hole for mounting bolt, like the PolyMount shown to the left. The advantage of this type of foot is that it prevents "walking" of the machine. Disadvantage is that more effort is required if you want to move the equipment. Also, if you are dealing with high vibration levels, holes can add additional stress to the base and possibly result in failure.

There are also a variety of types of levelers geared for particular requirements, including:

Glides: These are designed with a pad or base material that allows the supported equipment to be easily moved by sliding. This type of foot permits easily movement and relocation. Glide base material is typically harder and more abrasive-resistant than an anti-vibration base. Downside is that vibration can cause walking and movement. Shown here to the right is one of our Glide-Rite mounts, which offer a nylon or elastomer pad. Glide-Rite
LP 100 Low-profile design: This type of mount is used when equipment height is restricted, and permits equipment to sit lower to floor or platform. Con is that weight distribution in the pad may be limited due to thinner material. Our LP 100, illustrated here on the left, is a low profile mount available in many variations.
Low-cost: Sometimes weight, vibration, and unevenness are not worries, and you simply need an inexpensive foot to do the job. In that case a simple leveler of one-piece design can provide cost savings, like our Rattle Mounts shown on the right. Rattle Mount

This gives you a number of issues to consider in selecting the right leveling device for your application. Check out even more options in our Leveling Elements section. Meanwhile, J.W. Winco offers the following special modifications:

   - stud configurations
   - threaded stud lengths
   - thread sizes
   - base sizes and configurations
   - mounting holes

And if you have special issues or concerns, by all means contact our Technical Sales Associates (800-877-8351) and we'll be glad to assist.

 

 

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