Big arrival. Reduced prices for mechanical GOOD HAND clamps up to 63%. GOOD HAND quick clamping devices will make your work easier and save time! These are quick-release devices for secure fixation. Inexpensive!
Large arrival of Good Hand Clamps After a long absence, stocks of GOOD HAND products have been replenished.
Buy now while stocks last! View in the catalog with prices All GOOD HAND clamps
How to choose?
Clamp type
The mass clamp for the welding machine is available in three types: clamp, crocodile and magnet. Let's look at them in more detail.
Clamp clamp
A clamp is the most primitive and inexpensive type of holder. The most striking example is the manual clamp for welding FIT type C. This type of clamp provides reliable fixation and a smooth supply of current to the metal being welded. Contact is always reliable and stable. But the clamp is quite bulky and not always convenient to use.
Alligator clip
Welding crocodile clamps are the most popular type of clamp. They are securely fastened to metal, they are easy to use, and can be attached to a part of almost any thickness. This type of clamp received its unusual name due to its appearance. When open, the clamping mechanism resembles the mouth of a crocodile.
But there are also disadvantages to such a device. For example, the weakest point of the “crocodiles” is the spring, thanks to which the clamp opens. If the assembly is poor, the spring quickly becomes unusable. Also, this type of clamp is suitable only in cases where it is necessary to attach the clamp specifically to the part being welded.
Clamp magnet
Magnetic type welding clamps are the most expensive. But at the same time the most versatile. They can be attached to parts of any thickness, shape and size. They are easy to use and rarely break. They do not burn out and can withstand large temperature changes. Their advantages are especially evident when welding in hard-to-reach places.
But it wasn't without its drawbacks. Magnetic clamps are difficult to use when welding small parts, such as fittings. Also, magnets do not work when welding non-ferrous metals, since they are practically non-magnetic. Magnetic clamps require frequent cleaning, especially to remove metal shavings.
If the magnetic ground terminal is attached to a dirty surface, the magnet will simply overheat. Avoid these mistakes.
What to pay attention to
Before purchasing, you need to take into account not only the quality of the clamp, but also several other parameters. Make sure the clamp can support the weight of the cable you are using. Also, when buying a “crocodile”, check with what force the spring clamps the pliers. It shouldn't be too weak or too strong.
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Manufacturing
You'll spend less time in stores by making your own spot welding pliers. At the same time, you spend much less, and the money saved can be “used” on high-quality materials for welding.
Making and using handheld resistance welding pliers is easy. But at the same time they are suitable for any type of metal. Both a person repairing his car in a garage and a field work specialist will find a place for them. Their cost pleases thrifty people.
The first stage of making a homemade instrument is creating the base. Materials that everyone has at hand are suitable for it. It can be any steel or alloy, the thickness of which is no more than five millimeters.
Make several strips of twenty mm wide from a sheet of material. Their length can be different, it depends on your wishes. Wide metal rods are also suitable for the base. Give the ends of the blanks the shape of tongs.
Place the pieces obliquely relative to each other and join them together. Make a hole in the center that will be the point for adjusting the opening and closing of the pliers. Place a dielectric spacer between the plates at the hole location.
Welding clamping pliers
These are clamps specially designed for welding. They are particularly convenient for welding work. To fix the part, simply squeeze the handles. The size of the pharynx in them is adjustable. There is usually a pin in the handle of the pliers. Which can be rearranged into different holes, and thus change the size of the pharynx.
Welding clamping pliers can be of different types. For example, for fixing parts for T connections and for L connections. There may be special pliers for fixing corners.
In addition, they are divided according to the shape of the sponges. How they are divided into tools with straight jaws and tools with thin long jaws. The shape of the jaws can be very diverse, depending on the purpose of the tool. Their jaws can be conical, curved, straight or a combination.
It is better to buy clamping welding pliers made of heat-resistant steel. This will give them good strength during welding.
They can be operated with one hand, even if significant effort is required. They are designed with a bell crank system that greatly enhances manual pressure. The parts being welded are held tightly and reliably using pliers. The parts can be either flat or round.
The jaws of clamping welding pliers are usually made of special electric steel. This steel is forged for greater strength. In addition, the alloying elements chromium and vanadium are added to it.
You can buy clamping welding pliers from our company. To do this, simply contact us in any way convenient for you.
Another equally popular device is a clamp for welding work.
This device also belongs to the clamping class. This one is great. Almost every craftsman who works with metal has a universal tool. For welders, such a device is vital. Almost every professional has it in stock. In addition, it is desirable to have not one but several such devices. Even when welding one structure, it is usually necessary to clamp the parts with clamps in several places. In addition, they differ greatly in shape. Purpose, execution.
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You can buy a clamp for welding work with a simple screw clamp, or you can buy a tool with a cam mechanism. Clamping with jaws is faster and preparatory work time is reduced. But a clamp for welding work with a cam mechanism will cost more.
We suggest watching a video about corner vise clamps
According to form and functionality, clamps for welding work can be divided into the following types:
- – screw type, used for clamping pipes;
- – G-shaped type, such a tool is designed for fixing parts not exceeding the thickness of the solution;
- – corner type, used for fixing parts at corner connections;
- – F-shaped type, with this tool the size of the solution can be adjusted, which makes it possible to fix parts of significant thickness;
- – quick-clamping type, equipped with a special clamping mechanism that allows you to instantly fix parts.
In addition, there are clamps as accessories for special welding tables. This is already a set of tools that is used together with the welding table model. There are places on the table for attaching such a tool.
We present to your attention the clamping pliers of the Knipex brand, which have long proven themselves all over the world... Clamping pliers have long ago become an integral part of most repair and construction work. Welding work, blacksmithing, or the manufacture of small metal parts - in none of these cases, the master cannot do without clamping clamps. But there is one problem, which is that it is quite difficult to find truly reliable auxiliary tools, and ones that will last for many years, and not just a few days of hard work. However, there is a way out, this one is the Knipex universal clamping pliers, presented in this section of our online store. We bring to your attention a huge range of clamping tools of various types. Here you will find clamps for working with any profiled, round or flat materials, and specialized clamp-type welding pliers, and even special ones with automatic adjustment to the required size of the material. All clamping jaws presented on this page have very good characteristics: – Equipped with an ultra-modern crank lever system, thanks to which the material can be firmly clamped with only one hand; – Made of forged high-strength steel, pre-hardened in oil; – They have a high level of strength, reliability, and quality, which is confirmed by existing certificates. We suggest you buy and order Knipex clamping pliers right now and make sure of all of the above. Any pliers you choose will become your faithful assistant in your work. Compliance with all European standards, high level of quality, ease of operation and practicality - all this will serve you for your benefit for many years. Universal clamping pliers “Knipex” KN-4004250 are the pinnacle of quality and reliability. But the most important thing is their performance characteristics, due to the use of the strongest chrome-vanadium steel, which is not susceptible to any deformation. The design of all Knipex clamping pliers presented on this page is made in such a way that the pliers can be operated with one hand, even under heavy load conditions. – Reliable holding of round and flat parts. – High voltage due to the bell crank system. – Jaws – forged, chrome-vanadium electric steel. You can right now order and buy clamping pliers from “Knipex” in our online store, using the service of urgent delivery of goods to your home. Quality and reliability are the very parameters that the Knipex clamping pliers presented with us have... All clamps of this type are equipped with jaws with a large notch for a stronger grip on workpieces. The clamp is adjustable using a special bolt on the handle, which allows you to quickly and comfortably adjust the clamp to the desired size without taking your eyes off the working material. In our store, you can buy original clamp-type clamps from “Knipex”, while receiving a warranty card from the manufacturer and an additional 1-year warranty from the German tool company. Apply now and you will be convinced of the quality and reliability of the German instrument. Do you constantly work with welding? Are you often left without an assistant? Do you want to securely fix structures without the help of anyone? Then the Knipex welding clamps are something you clearly cannot do without. Unlike all other clamping welding pliers, these not only clamp, but also save the craftsman’s time. The reliability, quality, and efficiency possessed by the KN-4234280 pliers presented on this page can be envied by any model of pliers from any other brand. – Easily fixes profiled (rib height 40mm), round and flat materials. – The working jaws are made by forging under a hammer and are made of chrome-vanadium steel. – Has a clamp adjustment bolt and a convenient tension release lever. We strongly recommend that you place an order and buy Knipex welding pliers right now, because today is the last day when we have last year’s favorable price.
Working principle of welding tongs
The transformer, which has a significant mass, stands in one place during welding work. The welder connects a small portable device to it, with which he directly carries out the necessary work. To connect the individual parts of the welding equipment, a flexible multi-core cable is used, which is inserted into a rubber hose with water for cooling. Resistance spot welding pliers are a gun that is connected with one contact to the transformer and the other to the metal being welded.
With the help of such a gun, a welding point can be placed on any part of the product. In this situation, welding pliers will not be needed.
Features of welding work using tongs
- Metal samples are compressed with pliers, and thanks to the electrodes built into them, they are connected.
- Electrodes made of copper alloys with the addition of other metals are used. They are characterized by increased thermal conductivity, heat resistance, low electrical resistance, and retain their original hardness even after heating and contact with the metal surface of the samples being joined.
- “Crab” resistance welding electrodes can be attached to the tool in several ways - with threaded connections, inserted into specialized grooves or soldered.
Requirements that must be observed when using welding guns
- Preliminary preparation of products.
- Calculation of the electric current sufficient to perform welding work.
- Accounting for the time during which the desired area of the part is affected in order to instantly connect it with another element of the main structure.
- Calculation of the force that must be applied for high-quality adhesion of the joined samples.
Welding tongs are considered an excellent option for resistance type welding; they meet all the above conditions.
