Email:sales@castingindustrial.comQingdao Antai Import and Export Co.,Ltd

Qingdao Antai Import and Export Co.,Ltd

Your Premier Pole Line Hardware Manufacture

Your Premier Pole Line Hardware Manufacture


The main process in making the pole line hardware is as below :


All Antai Pole Line Hardware are hot dip galvanized after all sawing, shearing, drilling, punching, filing, bending and machining are completed.

The pole line hardware hot dip galvanizing is in accordance with ISO1461 and applied by the hot dip process to provide thickness of zinc coating of not less than 610gm of zinc per square meter of surface on steel bars, plates, sections and fittings.

Threaded work shall have a coating weight of 305gm of zinc per square meter.

This way, all the pole hardware surface won’t get rusty.

All steel pole line hardware surface is smooth, clean, of uniform thickness and free from defects.

The preparation for galvanizing and the galvanizing itself will not adversely affect the mechanical properties of the coated material.

And the life time of line hardware will last more than 20 years.

Antai workmanship is the first-class quality among so many competitors. Antai workers have done very well on electric welding.

Now let’s explain how Antai workers do the electric welding step by step :

1) Pole line hardware electric welding first step control : Preparation of base material

Pole line hardware raw material to be joined by welding will be cut accurately to size with edges flame-cut, sheared, or machined to suit the required of the welding and to allow thorough penetration and good fusion of the weld the base metal.

If the pole line hardware raw material surfaces have the defects such as lamination which cause by shearing or flame-cut operation, that pole line hardware raw material will be collected to the disqualification area.

If the material edges to be welded are rust, oil, grease, they are also be selected to the disqualification area.


2)Pole line hardware electric welding second step control : Welded construction and stress relief

Antai worker man do the welding according to the confirmed drawing size and standards.

3)Pole line hardware electric welding third step control: acceptance of the welded structures

To guarantee the joints in accordance with the instructions given on the drawings and the soundness of the welds, Antai QC inspector will check whether the dimensions are correct and no absence of distortion in the structure after the welding.

4)Pole line hardware electric welding forth step control: cleaning

The Antai workers always remove all excess weld materials, slag, splatters and flux residues.

After cleaning, the workers will do packing. The package quantity isn’t confirmed, it’s usually according to the size and weight of each pole line hardware fitting.

The pole line hardware hot forged process is a little more complexed.


The brief description is as below:

1)The first step is to heat the steel rod to high temperature until it changes from black to red.

At the same time, the shape of the steel rod is changed. The rod is crushed to a big red block.

2)The second step is to press the red block to a certain shape.

If the line hardware can’t be a certain shape by a single pressing force, the pole hardware suppliers will press it twice of continuously.

Antai Pole line hardware are mainly used on overhead power lines or power transmission lines.

To go through the wooden pole, some pole line hardware fittings are fitted using screw machine.

The flat and angle steel are used to support other electrical pole accessories. All the pole hardware fittings are connected by bolts nut and washer.

Antai pole line hardware which used on overhead power line and communication line are usually confused by people.

How to identify the difference between the power line and communication line? Usually, For power line and communication line, the pole line hardware are designed by different ways.

The communication line pole is usually separated with the power line pole, but in special condition, there is a possible that the power line and the communication line use the same pole.

In this case, it asked to add one dead end supporting which includes stay set, stay wire, pole bandguy thimble and guy clamp.

The pole line hardware connect ways are not firmed. For different markets, the pole line hardware is designed in different construction and different specification.

If you want to know the detail design for each market, pls check here for Russia market, South American Market and South East Asia market.

Antai pole line hardware are various kinds of pole hardware fittings which used to support the line.

The main raw material of the pole line hardware is carbon steel, few pole line hardware raw material are aluminum.

Antai raw material carbon steel includes flat steel, angel steel and steel rod. Antai always use the material which is new, the best of their respective kinds and free from defects and imperfections.

When the present material is not same standard with the customers’ requirement, Antai QC inspector will indicate the equivalence between the material used and the corresponding material following the required standards in the contract.

At the same time , the Antai sale man will try to get the approval of the customer before starting the manufacture of the pole line hardware products.

As the Chinese leading Pole line hardware manufacturer, Antai has created many new types of utility pole parts and pole clamp hardware.

Compared with other pole line hardware suppliers, the Antai staff strictly controls every process.


Why did so many customers choose Antai POLE LINE HARDWARE?

1)With 10 YEARS workmanship on punching, hot forged, casting, electric welding, Antai is your trusted manufacturer for power line hardware and electrical pole accessories.

2)Antai has beaten their rivals by develop and supply the customized pole line hardware together with uniform quality and clear packing.

Antai will supply your complete source for pole line hardware. To became the next Antai pole line hardware distributors, you can contact us to talk further cooperation possible.

3)Every pole hardware fitting is asked breaking strength. Breaking strength is the most important factor in the pole line hardware fittings application.

To meet the breaking load standard, the ANTAI QC team choose and inspect the raw material very carefully. And Antai QC team make load test before each shipment.

Antai QC team test the working stresses and the breaking strength are according to ISO or IEC standard. Antai engineer supplied the drawings to the customer for review before the order.

Antai QC inspectors perform routine tests in accordance with requirements of the specification.

To become the world’s leading pole line hardware manufacturer, Antai will continue to pay attention on the quality control and solve the customers’ problem.

If you have any new idea on making pole line hardware products, welcome to contact us.

Pole Line Hardware: The Complete Guide

Are you looking for suitable pole line hardware for high-voltage or low-voltage power transmission?

If yes, then this is a must-read guide for you.

Because I am going to take you through every aspect of pole line hardware.

From basic definitions, classifications, consideration, materials, installation to applications of pole line hardware – you will learn everything you need to know here.

Just keep reading to be an expert in pole line hardware.

High voltage power transmission

What is a Pole Line Hardware?

If it’s your first time to buy or import pole line hardware, then possibly you wouldn’t be knowing sufficient information about the same.

And this is probably one of the daunting questions that could be running in your mind as you read this guide.

Essentially, pole line hardware refers to the different types of parts and components used commonly in the aerial construction of overhead lines.

Pole line hardware are common in connecting, handling and holding various overhead line systems, insulators, wires and other hardware.

They come in different types, sizes, and designs.

Of course,these uniqueness is as a result of the fact that their purpose is also different.

Nonetheless, it is the particular application that determines the type of pole line hardware you’ll require for your needs.

These pole line accessories are vital in various aspects of overhead line construction since they ensure efficiency, safety, and convenience.

As you’ll come to realize later in this guide, several types of pole line hardware play a distinct role in their specific applications.

For now, though, let’s shift focus and look at some of the reasons that would possibly acquire pole line accessories worthwhile.

Why You Need Pole Line Hardware

Quite evidently, the use of pole cable accessories is widespread.

It is a clear indication that people need it for different reasons.

So let me describe to you a few beneficial reasons why you would necessarily require accessories for pole cables;

a) Safety

You see, the power lines are ordinarily hazardous.

These are not the usual things you would wish to gamble with at any cost.

So necessarily, most of the pole line hardware are needful as a way of enhancing the safety of the power materials.

Power line safety

In most instance, such hardware help to hold the various cables, insulators, transformers or many other elements in position.

They also assist in safeguarding a number of critical components from falling or causing a threat to the user in one way or the other.

A bigger picture in this case, therefore, is that you require these accessories as a way of safeguarding the lives and properties of people.

b) Compliance

Ordinarily, pole cable hardware are extremely under strict regulations posing to the nature of role they play in the respective application.

What I mean here is that it’s entirely impractical to merely use any type of this accessory that doesn’t meet the standards of the industry.

So you’d seemingly require these components as a way of complying with the standards that the regulators have put in place.

Indeed, there are various instances where you cannot install a specific type of overhead line without using particular pole line hardware.

And for that reason, it becomes vital to comply with the industrial standards possibly as a way of enhancing safety too.

c) Easy Maintenance

There is something important that you ought to know regarding these items and so let me explain briefly;

It is relatively easy to maintain an overhead line as opposed to an underground line.

You see, what you got to in most cases is merely to climb the poles and make the necessary adjustments and repairs.

So you need this types of hardware because they make your work easy, faster and convenient.

It is also easy to monitor the status of pole line hardware from time to time and determine the specific ones which require repair or replacement.

And for that reason, you’ll definitely attain the necessary efficiency in whatever application you’re handling.

d) Convenience

Like I have mentioned in the earlier point, pole line hardware offers the expediency of the highest level.

This is obvious in the aspect of installation, maintenance, replacement, and repairs.

What happens in most cases is that you’ll spend the relatively short time to do all the things pertaining to overhead lines.

All you got to do is making sure that you have the right tools for the tasks, relevant knowledge and experience.

e) Efficiency

And lastly, you also need pole line accessories to enhance effectiveness.

What I mean here is that depending on the particular application, it’s at times challenging to accomplish most of them without these items.

In such a manner, the performance or effectiveness of the line will be adversely affected.

And what follows definitely is poor service and complains or dissatisfaction from the end users.

So primarily, the use of these accessories help to improve the efficiency of the application, which results in better service delivery.

Classification of Pole Line Hardware

So far we’re moving on well.

And in this section, the focus is to discuss the most common categories of pole line hardware in the market.

Interestingly, in as much as most of these accessories fall into different categories, you’ll find that they are applicable interchangeably in most occasions.

Or in some cases, they’re all used together to accomplish a particular task in an overhead line structure.

So let’s describe these classifications on a one by one basis;

§  Pole Line Fasteners

This category of pole line accessories refers to the group of items commonly used for mounting wooden cross arms to poles.

These fasteners are also common in mounting line construction speciality materials.

They come in different sizes, designs, and shapes which is vital since it helps to match the specific application.

It also allows you to have open options for the particular task you want to perform.

In fact, some of the typical configurations of pole line fasteners include rods with threads, headed bolts, and bent bolts, etc.

In many instances, these fasteners often have a semi-cone point and also use square nuts and galvanized to resist corrosion and rust.

Examples include brace bolt, carriage bolts, hex head bolt, oval eye bolt, straight thimble eye bolt and angle thimble eye bolt etc.

§  Insulator Hardware

This category refers to the materials whose internal electrical charges do not necessarily flow spontaneously.

Precisely, they are the types of elements which only allows a restricted amount of electric current to flow through under electric field’s influence.

Better still in more of layman’s language, they are types of materials that do not conduct electricity easily.

Some would refer to them as poor conductors of heat or electricity.

Pole line insulator hardware come in different types, sizes, designs and importantly, materials.

Typical materials include porcelain, plastic, rubber, and glass among others.

Examples of pole line insulator hardware include clevises, spool bolt, line post studs, cross arm pin and porcelain knob among others.

§  Dead-end Hardware

This category refers to the types of pole line hardware which do not allow live current to pass through or beyond that point.

Necessarily, the design of these equipment is to prevent transmission of a current or similar element from going beyond it.

In pole line structure, the dead-end hardware are seemingly common and widely used in various applications.

Of course, they also vary regarding size, design, shape as well as the material.

They’re also significant in providing the necessary amount tension, especially in large industrial applications.

Examples include clamps, insulators, hooks, pins, shackles, eyelets, rope clips and rope thimbles among others.

§  Tower Hardware

These refer to the types of hardware that you commonly use for holding and tightening different components of overhead line structures.

Mostly, the use of tower hardware is common especially in fixing and supporting the components at the highest point of the poles.

They’re vital since they help to support even heavy parts rendering them safe and enhancing the efficiency of the overall structure.

Some of the common ones include socket eyes, thimble clevis, turnbuckles and ball clevis among others.

The materials for manufacturing the tower hardware also vary, and the use of each is dependent on the specific application.

§  Drop Hardware

The drop pole line hardware refers to the items designed for keeping your aerial installation secure and safe.

The essentially hold the relevant components in ideal position hence preventing loose connectivity that might result in danger or inefficiency.

The aerial drop hardware come in various forms and some of them include wire clips, drop wire clamps and span clamps.

Also, the house brackets, cable clips, staple and steel banding are the other types of common drop pole line hardware materials.

§  Strut System Hardware

This is the category that functions in form of a suspension in overhead line structure.

The strut system consists of various components which also play a fundamental role in accomplishing the effectiveness of a particular application.

Some of the strut system hardware can be quite small, but they still play integral roles in the entire overhead line mechanism.

Examples of some of these components include channel nut with springs, channel nut without springs, and combo nut washer.

Also, stud nut with springs, without springs, and channel nut with plastic cup and stud are also among the strut system hardware.

§  Quick Release Pins

Also,a common category of pole line hardware these items firmly help in aligning and fastening two applications.

What happens when using these pins is that once you insert them into a particular application, it becomes difficult to remove it.

Incidentally, it’s only removable upon depressing a button on top of T handle or sunken grip.

These products are available in different sizes, lengths and also design.

So it becomes easy for you to merely choose the appropriate one accordingly.

§  Distribution Hardware

Now, this are common types of hardware applicable in a wide range of overhead structures for transmission systems.

They’re specifically designed to assist in enhancing the transmission of various elements from one point to another.

These items could be as many as possible in a particular transmission system, but they all play unique roles in every application.

Some of the widely used types of distribution hardware include cut out arrestor brackets, strain yokes, and transformer mounting.

Significantly, those are the key categories and examples of the pole line hardware.

However, you should always have it in mind that there could be more depending on the type of overhead line structure.

The bottom line here nonetheless, is that the uses of these accessories are unique.

Therefore, you got to ensure you make the right selection for the right task.

Key Consideration when Buying Suitable Pole Line Hardware

As we move to this point, the primary emphasis that I’d like to put across is that these hardware are nowadays all over the market.

You can simply get online and make your order from a particular online store, and within a short period, you’ll have it.

Alternatively, you can get to a physical vendor and make your selection of the actual pole line accessories then leave with them.

But tentatively, something that should always cross your mind is the fact that not all these pole line accessories are suitable for your needs.

It thus implies that you have to figure-out appropriately and identify the particular properties which you require from a certain accessory.

For that reason, let me take you some of the general factors that you should look into when buying a fitting pole line hardware;

I. Type of Material

Without mincing words, this is arguably the most significant factor to consider when looking for a suitable pole cable accessory.

You see, all these accessories are made of a wide range of materials including steel, plastic, rubber, and glass among others.

Therefore, when purchasing, it is indeed ideal to determine the type of material that the item is manufacturedwith.

Also, you need to figure out whether or not that type of material befits the purpose of the hardware in discharging its duties.

II. Design of the Accessory

When I talk of the design, I also mean the shape, size, diameter, finishing, and color of the hardware if any.

What happens is that some pole line accessory manufacturers often use this factor to gain leverage in the market.

So the manufacture their products with different or unique designs to stand out and attract users in various ways.

Well, this could be an added advantage to some extent, but the bigger picture is whether it affects performance and efficiency.

And while you’d be thinking of buying a particular accessory due to its design also consider knowing whether the design improves effectiveness.

Furthermore, you must also ensure that irrespective of the design it has to fit and conform to the necessary standards.

III. Safety Rating

When selecting a suitable pole line hardware, safety ought to be a top priority.

Remember this is an item you’re using to construct or fix a component that many people and properties will be using.

So first it’s of utter essentiality to safeguard these lives and properties before anything else.

This is to mean that you must find out how many accidents have been as a result of that particular model prior if nay.

For the likes of the distribution pole line hardware, you must also establish safety measures that they provide before purchasing.

And finally, you have to ensure that they meet the regulator’s safety standards before purchasing.

In fact, a suitable brand shall always make sure that it goes above and beyond to put all integral safety measures in place.

If you’re a novice in this sector, you might as well consider getting assistance from an expert who understands the aspects.

IV. Type of Application

So far I’ve spoken about the type of application quite broadly, but I am still emphasizing the same regarding selection.

You see, the design for these hardware is specifically for particular applications.

Of course, there are a few exceptions where some apply to different uses.

But even though, you have to verify their suitability in each and whether they have any effect on performance.

Essentially, determining the type of application is an ideal way of ensuring that you’re selecting the right pole line hardware for the task.

It is incidentally the typical way of attaining the best accessory that guarantees performance, efficiency, and convenience.

V. Resistance to Various Conditions

Ideally, all the pole line hardware are fixed in a manner that exposes them to a wide range of environmental and physical conditions.

What I mean here is that even the ones in some form of enclosures are still put outside where weather conditions can be unfavorable.

And it’s for that reason that you need to ensure you go for a pole line accessory that has ultimate resistance to such conditions.

Corrosion and rust are some of the major weather conditions that often affect the suitability of this type of products.

Also, they have to be durable in the sense that irrespective of the extent of unfavorable conditions, they could still endure and perform excellently.

And for that reason, it’s always advisable to go for reputable brands that have stood the test in the market.

VI. Cost of Buying

Well, this is the other relatively sensitive element that you need to consider when purchasing these items.

In many occasions, you’ll find that the pricing of a particular accessory varies from one dealer to another vendor.

Significantly, the cost of buying different models also depends and it’s the reason you need to determine your budget first.

And if you want a better deal, especially when buying these items in bulk, it’s recommendable to do a broader search before settling on one.

This way, you’ll have to choose the one that suits your budget and quality standards that you require.

And talking of quality, let us now find out the type of materials you’d necessarily go for in choosing pole line hardware.

Pole Line Hardware Materials

What usually happens is that manufacturers understand the particular requirement for specific pole line hardware.

And that is the reason you’ll find materials for such components vary depending on a number of factors.

Remember earlier on I’d state that the type of material for the hardware is unquestionably a significant factor to consider.

In line with this, you have to understand that manufacturers often use several types of material to create these products.

Some of the conventional materials for manufacturing pole cable accessories include the following;

§  Carbon Steel

This is apparently the highly rated material for producing various types of pole line accessories.

It is essentially an alloy of carbon and iron or better still you refer to it as steel with carbon content.

This material is vital for manufacturing various forms of pole line hardware as it contains some of the suitable properties.

One is that carbon steel is hardy and resistant to numerous environmental aspects including harsh weather, rust, and corrosion.

For a fact, carbon steel becomes even harder and stronger when subjected to heating, which arguably makes it the best option for these applications.

The good thing carbon steel as an ideal material for such hardware it’s available in a variety of qualities.

Now this means that you can find it in lower, medium and higher qualities.

So what this translates is that the steel becomes more brittle and stronger if it contains more carbon.

Again, it’s an indication that you can regulate the level of carbon to use in manufacturing a certain part of pole line accessory.

This material is utterly suitable for most of the robust pole line hardware especially those that hold heavy loads.

It follows that carbon steel hardly breaks or become weak, so that’s a considerable property making it suitable for pole line hardware.

Furthermore, the carbon steel is also resistant to heat, corrosion, and rust.

And since most of the overhead line hardware are always exposed to different conditions, it becomes a suitable material for these items.

Some of the notable pole line accessories made of carbon steel include fasteners, dead-end components, tower and aerial drop hardware.

Of course, not all of these are manufactured using carbon steel material. So let’s find out some of these types of materials too.

§  Polycarbonate

This is also the common material common for manufacturing different types of pole line hardware.

You see, one underlying factor of any material befitting pole cable accessory is that it has to be resistant to various adverse conditions.

And polycarbonate is one of these materials that will never let you down when it comes to high resistance and durability.

Insulators are the common hardware that widely uses polycarbonate material.

Also, some components such as pole line electrical enclosures like the meter box and similar parts are also conventional with polycarbonate.

In other instances still in pole line hardware, polycarbonate is used in making dead-end equipment and many more.

§  Aluminum

Aluminum is the other suitable material for manufacturing this type of hardware.

This metal is light, durable and functional making it one of the key materials for manufacturing various types of pole cable accessories.

If you’re keen enough, you’ll notice that other than carbon steel, most of the hardware for overhead line structures are made of aluminum.

Some of them include lashing clamps, cable lashes, suspension clamps, tap brackets, cable straps, cable dampers and clevis among others.

It is also reliable, strong and stable making it an ideal choice form manufacturing these types of hardware.

Evidently, you’ll find some parts made from other relatively unknown materials.

However, you should always ensure that such materials meet the necessary standards especially from the perspective of safety.

Right now though, we want to move a step further in this guide to find out some of the various types of pole line hardware.



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