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NTK® Oscillators

A great motive force for compaction tables, feeders & screens!

Compact, settle, feed or screen – move material efficiently with NTK® Oscillators. Operation is quiet, and energy-efficient. NTK® Units start and stop instantly in any position and are explosion-proof and wash-down safe. Aluminum Units operate lubrication-free. No one builds industrial vibrators like MARTIN®!

ATEX-Certified.

The NTK SERIES is available in the following models:

  • NTK-8AL
  • NTK-15
  • NTK-16
  • NTK-18AL
  • NTK-25
  • NTK-25AL
  • NTK-40
  • NTK-40AL
  • NTK-55
  • NTK-55AL
  • NTK-85
  • NTK-110

Features

  • No Lubrication Required

    AL models are lubrication-free, eliminating the use of messy, maintenance-intensive lubricators. No oil mist is discharged into the atmosphere.

  • Quiet

    Noise levels are 60 to 75 dBA, well below regulatory limits.

  • Infinite Adjustability

    NTK® Oscillators offer separate and independent adjustment of both frequency and amplitude, providing exactly the right force time after time.

  • Additional Specifications

    • Air pressure range: 30-60 psi
    • Operating temperature: 32° – 120° F, special low & high temperature models available.
    • Air Preparation: 5-micron filter, pressure regulator & lubricator for steel models. 3-way control valve required.
    • Force (maximum): 7-900 force-lbs.
    • Warranty: 3-years when operated within recommendations.
    • Included: Muffler, nipple & mounting bolts.

Applications

  • Custom Tables For Almost Any Application

    The 100% linear force combined with infinite adjustability of both frequency and amplitude make the NTK® Oscillator the perfect choice for:

    • Shaking bins with light bulk density materials
    • Feeder, screen & conveyor drives
    • Bulk bag & box settling
    • Compaction tables
    • Paper joggers

Case Studies


Case Study: Perfect Blending With An NTK Aluminum Oscillator

Problem

An Illinois ice cream manufacturer was having difficulties keeping sugar flowing down a feeding chute. The product would bridge and cling to the sides of the chute, creating inconsistency in the product blend.

Situation

Their existing chute did not blend product consistently and would cling to its side. This created a problem with their product blending and the cleaning and maintenance of the chute was costly.

Solution

Martin Vibration Systems first unit installed on the chute was our P-1.25 Piston Vibrator. However, because of noise and air consumption, the NTK-1 Aluminum Oscillator was used in its place. All flow problems have been eliminated with this application.


Case Study: Bakery Packages Cookies With NTK Vibrator

Problem

A large bakery in Atlanta Georgia shipped in bulk broken cookie pieces to be used in cookies & cream ice cream. The cookies are cooked whole, broken, and fed by conveyor into boxes that are lined with a plastic bag. The process is continuous, and the operator was often left shaking the boxes to level the cookies and remove air pockets that developed between the box and the plastic.

Situation

Shaking the boxes and leveling product slows production and decreases speed and daily output. In addition, the repetitive shaking of boxes caused complaints of fatigue from the operators that resulted in shifting personnel from one task to another, further slowing production. Rather than shaking the entire box conveyor as requested by our customer, we approached this problem with an NTK-25 vibrator mounted as shown on the attached sketch.

Solution

Martin Vibration Systems fabricated an assembly to attach to the underside of the live roller conveyor, piped the vibrator to be activated by foot pedal at the operations station, and included a rubber pad on the piston end of the vibrator to be used as a “strike plate”. When activated, the NTK-25 taps the box (similar to the shaking procedure used by the operator), levels the cookies, and helps dissipate the air pockets. This one vibrator increased output, reduced employee complaints and eliminated the need for additional controls and conveyor modification.


Case Study: Martin Vibration Systems NTK-8AL Oscillator

Problem

An Indiana chewing tobacco manufacturer was having quality and quantity problems with a particular product, ground tobacco contained in a small paper pouch, commonly referred to as chew or snuff.

Situation

The problem was that as the automated machinery dropped the desired 20 pouches into a small cylindrical plastic can, the pouches would lay on the edge of the can. when the lid was put on, the pouches would be squashed, half in and half out of the container. This would obviously cause a rejected can. In addition, the pouches would get clogged in the machinery prior to dropping into the can. This would result in one can having perhaps 16 pouches while another might have 24 pouches.

Solution

Martin Vibration Systems recommended mounting an NTK-8AL Oscillator under each loading point. This small vibrator moves and compacts the pouches properly in the can. At the same time it keeps the pouches flowing freely down the loading tube. An estimated 40% rejection rate has now been reduced to less than 5%, and the cans have the proper number of pouches in them.


Case Study: Sort Product with the NTK-40 Oscillator

Problem

A maintenance manager of a mushroom farm in Illinois approached us with a problem with their slicing mechanism. The operation produces in excess of 24 million pounds of mushrooms per year. These are the white and brown “button” mushrooms you can find in any supermarket. They are packaged both whole and sliced.

Situation

Their slicing operation was causing problems because the mushrooms are sliced into thin strips by an automatic machine and there was no way to separate the very small pieces from the usable slices. They needed to find a way to separate the strips from the undersized parts.

Solution

The finished product is essentially a screening unit made of Teflon-coated stainless steel with 5/8″ diameter perforations. The screen, powered by an NTK-40 with a two-pound weight attached is mounted on fiberglass springs and sits about 40″ off the floor on an epoxy-painted steel base. A stainless steel can placed underneath catches the undersize pieces.


Case Study: Aluminum Shot – NTK-85 Solution

Problem

A manufacturer of aluminum shot was having serious quality control problems regarding the size and shape of his product. Pieces were deformed or elongated to the point where his customers were complaining.

Situation

The current solution was to use MARTIN® UCVR-8.20 Vibrators to meter the product during its formation. This method gave them the required tonnage per hour but not the surface quality they desired.

Solution

The introduction of an NTK®-85 Oscillating Vibrator has since greatly improved the uniformity of their product while maintaining desired production levels. The additional benefits of less noise and reduced air consumption have greatly improved the work environment.


Case Study: Material Flow Solutions- Feeding Chute

Problem

A customer who manufactures ice cream was having difficulties keeping sugar flowing down a feeding chute. The product would bridge and cling to the sides of the chute, creating inconsistency in the product blend.

Solution

The first unit installed on the chute was our P-1.25 Piston Vibrator. However, because of noise and air consumption, the NTK-1 Aluminum Oscillator was used in its place. All flow problems have been eliminated with this application.


Case Study: Eliminate Vibration & Reduce Driver Fatigue

Problem

Nissan Canada Inc. introduced a new line of fork lift trucks featuring an innovative “floating cab” designed to eliminate vibration and reduce driver fatigue.

Situation

Drummond Equipment, Inc. was asked to supply mechanical equipment to simulate the vibration frequency and amplitude generated by a running lift truck so the benefits of the “floating cab” could be demonstrated at an indoor materials handling show.

Solution

Under our direction, the motor was removed and replaced with an NTK-110 with 50 lb. weight on a mount bracket of our design. In addition to the NTK—110 and mount bracket, the customer also purchased the air line accessories required to complete the equipment package.


Case Study: Broken Cookies – Bakery Packaging Solutions

Problem

A large bakery recently approached us with an unusual vibrator application. One of the products they produce is broken cookies that are shipped in bulk to be used in cookies & cream ice cream. The cookies are cooked whole, broken, and fed by conveyor into boxes that are lined with a plastic bag. The process is continuous, and the operator was often left shaking the boxes to level the cookies and remove air pockets that developed between the box and the plastic.

Situation

This “leveling” procedure slowed the packaging process, which reduced production speed and daily output. In addition, the repetitive shaking of boxes caused complaints of fatigue from the operators that resulted in shifting personnel from one task to another, further slowing production. Rather than shaking the entire box conveyor as requested by our customer, we approached this problem with an NTK-25 vibrator mounted as shown on the attached sketch. We fabricated this assembly to attach to the underside of the live roller conveyor, piped the vibrator to be activated by foot pedal at the operations station, and included a rubber pad on the piston end of the vibrator to be used as a “strike plate”. when activated, the NTK-25 taps the box (similar to the shaking procedure used by the operator), levels the cookies, and helps dissipate the air pockets. We accomplish this at 5 PSI.

Solution

With the location of our “box bumper”, we interfered with a discharge/diverter plate, activated by a metal detector, that dumped potentially contaminated cookies into a waste container. Rather than moving this “last stage” metal detection to another location upstream, we recommended fabrication of a feeder pan that when attached to the vibrator piston would then feed cookies to the back side of the vibrator into the same waste container as originally used. We have used one vibrator to increase output, reduce employee complaints, and eliminate the need for additional controls and conveyor modification.

More importantly, this baker, who has always been a good Martin customer, has a reinforced image of us as the company that provides solutions. That’s gratifying and profitable.


Case Study: NTK Oscillator Moves Pellets Down Conveyor

Problem

A local chemical plant handles small catalytic pellets that are wet when they are fed onto the belt and run through a furnace where they are dried out. After being dried out, the pellets become hard and brittle and break during handling which cause build up of debris causing the belt to mistrack.

Situation

After the pellets are dried out they become hard and brittle and break during handling. The problem occurs when these pellets break, the fines and dust fall between the weave on the wire belt and build up causing the belt to mistrack.

Solution

From tapping on the underside of the belt and noticing how easily the build falls loose, Martin Vibration Systems recommended mounting a NTK-5 Oscillator under the belt to provide the tapping action. The NTK-5 was mounted in such a way that the tapping affect would be transmitted along the belt’s entire width.


Case Study: NTK-8 Vibrator Unplugs Bagging Machine

Problem

A large blending plant in Illinois was experiencing difficulty filling their large bagging machine.

Situation

As the bagging machines filled, hopper levels were visually checked with a slight glass. Oftentimes, flour would plug these sight glasses resulting in lost production.

Solution

An NTK-8 was super-glued to the sight glass. This small amount of vibration kept the glass clear with no damage to the glass.


Case Study: Solving a Material Flow Issue with the NTK Penumatic Oscillator

Problem

A well known Food Company of Kitchener, Ontario is a manufacturer of biscuits and cookies. The company uses several of our Piglet Belt Scrapers to make cookies which contain marshmallows and chocolate.

Situation

On a visit to the plant, an engineer inquired as to whether or not we could address and possibly fix a vibration issue. It turns out that a pivoting motion was causing an arm weldment to repeatedly strike a wire mesh screen belt and cause a pivoting oscillation in an axis. As a result, cookies and chocolate were passing through the system, and the ingredients were creating a mess of the screen which was to be recycled.

The issue was one of quality control. The amount of chocolate adhering to the screen versus the amount of chocolate passing through the screen was the problem. Despite the temperature control and the fat formulation, originally the end product was not turning out as expected.

Solution

The NTK Pneumatic Oscillator was the solution to the problem, as it was found that it works in a pivoting motion. The operator is now working correctly to consistently produce a delicious, high quality cookie.


Case Study: Confectionary Company Uses NTK Oscillators For Candy Coating

Problem

A Wisconsin Confectionary was in immediate need of specific equipment in order to properly prepare their candies for human consumption. The candies initially required separating and then spreading on a processing belt to get the candies ready for coating.

Situation

Unfortunately, the confectionary was having issues separating its small, flavored candies and dry chocolates evenly for a coating application. As a result, the company was experiencing a high amount of waste due to the clumping of the candies and chocolates.

Solution

Martin Vibration Systems promptly installed our NTK Oscillators to the shaking-zone frame to control noise and to create vibration between 60 to 70 dBa. Additionally, there was no oil mist discharge present. Our Oscillators boast an instant stop and start capability, and as a result, the lubrication-free equipment has considerably improved the packaging process of the Wisconsin confectionary, now resulting in very low waste of the candies and chocolates.

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