Through Hole Slip Ring And Its Uses in devices

Human effort has made various things possible with its understanding and nature to achieve something. Every progress happened in the history of humankind is to make the life of people easy and straight. Previously, by far most of the cutting edge errands were mechanical anyway then development happened and the electrical machine took over everything. When we talk about the development, we’ve seen various advancements in the industry and technology. The slip ring is one of those manifestations that have made human’s life comfortable. Through hole slip ring is a type of general slip ring.

What is Through Hole Slip Ring?

First let me tell you about the general slip ring, an electromechanical device used for the transmission of electric voltages from the static bit of the equipment to the rotatory part is called slip ring. Through hole slip ring is a type of slip ring with a hole or bore in the center. Let us reveal to you a complete understanding of this amazing gadget.

There are a couple of devices, in which we have to play out a specific errand and that endeavor must be performed by the rotation of a thing. So, we essentially grant transmission of electric signals through a turning assembly. That is where we need the through hole Slip Ring.

Through Hole Slip Ring Function:

Thorough Bore or hole slip ring is designed for structures where something needs to pass from the slip ring. The hollow space in the middle of these slip rings can be used to connect the rotor with the rotatory part of the machinery.


These slip rings can be acquired in different sizes; the diameter of the hole can be from 3mm up to 300mm.

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How does through hole slip ring works?

A general slip ring has two basic parts, one is a stationary part that could be graphite or metallic brush and the other one is a rotating ring. The only difference is that through hole slip ring has a vacant space in the inside offering section to channels or wires.

The structure of through hole slip ring isn’t enormously tangled, the conduction material is joined outwardly of the dimension plate and the metallic rings on the post. In any case, the weight and volume may vary through different slip rings depending upon the application and use.

The stationary part (Metallic brush) transmits the electrical banners to that metallic ring in the midst of the rotation. Hence, the transmission of electric power occurs from stationary to the turning segment of the machinery.

Uses of the through hole slip ring

Through hole or through bore slip ring is used in various electromechanical devices. Some of them are below:

Loading and Unloading – This type of slip ring is used in stackers, where heavy mass is needed to be loaded or unloaded. In power plants, this type of machinery is used. The high voltage slip ring is used at ports for this specific purpose.

Heavy-Motors – This type of slip ring is used in motors that are used in mining projects. These heavy motors are being used in the cement industries.

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Electricity Generators – One of its significant uses in the generators. The high voltage slip ring is used in wind turbine generators and different windmills.

Offshore Cranes – Mostly, these cranes have a combination of different types of slip rings in them. But the high voltage slip ring is also used in these types of cranes.

Best Models of Through Hole Slip Ring:

There are various companies which are manufacturing through bore slip rings, some of them are given below:

Moflon MT Series – You can get the catalog of the MT series from their website. Their Slip rings are manufactured using fiber brush technology.

Senring Through Hole Slip Ring Series– These slip rings have metallic housing. The current rating is 0A to 20A, the voltage rating is 0VAC/VDC to 600VAC/VDC and the hole size ranged from3mm to 300mm.

DSTI Slip Rings – They have two categories: standard and customized. The standard model will integrate directly in your device and the customized will be manufactured according to your instructions.

Rotarx Through Hole Slip Rings – These slip rings have aluminum housing. The current rating is 2A to 10A, the voltage rating is 240VAC/VDC to 690VAC/VDC and the hole size ranged from30mm to 300mm.

Things you should keep in mind while going for a through hole slip ring:

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There are plenty of factors that you should keep in mind while purchasing a slip ring. Some of them are the following:

  • If you’re planning to operate your through slip ring in outdoor, make sure to go for a waterproof slip ring. It’s unfortunate that most engineers ignore this situation. Always specify your weather conditions to your company vendor so that he may give you the best slip ring according to your requirements.
  • The slip rings used in mining or any operation where there are chances of the explosion of the device. Then, you must tell your vendor about the nature of your work. Always take necessary safety precautions while using high voltage slip ring in your devices.
  • If you’re about to operate your device on heights, it’s a good practice to specify this to the company. It’s not that much crucial point, but still safety above all, always and forever.
  • If your device requires more RPM, then go for the slip ring which suits your requirement. This will enhance the efficiency of your device. Most of the devices require less RPM, but on installing a slip ring of higher RPM, we’ve noticed the increase in efficiency.

There are a variety of slip rings present in the market like moflon. You may have heard about its different types. I.e. Pancake slip ring, high-frequency slip ring, miniature slip ring, etc. But, always make sure to understand your need before buying any slip ring.

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