Suppliers to the Jewellery Trade

PUK 3 Spot Welder

Puk 3 provides a long-awaited missing link between difficult joining techniques and laser welding devices.  It's small size, low weight and minimum energy use are important factors leading to your advantage.  Excellent ignition and welding characteristics allow a broad range of use. With the welding device, you're able to gain access to new dimensions of welding techniques in the area of production and repair.

This Page

All Prices are in Canadian Dollars
Currency Conversions	Shopping Cart Tips Terms of Sale

PUK 3 professional plus extends the characteristics by using a substantially stronger power module with 5 possible program memories which realises more than 30% power over PUK professional. The welding arc can be even more accurately controlled than with PUK 3 Professional and this model has been designed for the ambitiously user and the ones which already know the advantages of PUK-welding. This model is simply the High-End unit in the range of PUK - Generation 3.

Features

• Small, easy to use electrical spot welding devices with many advantages.
• The device can be used to position small welding points very precisely, even in deep, hard to reach positions. This allows you to create stable and long-lasting fastenings, especially in places where soldering is not possible.
• Many other applications are possible in addition to pinning bands, making repairs immediately next to precious stones and filling small cast pores. It’s easy to weld semi-finished products, close loops or open chain links, melt ball shapes or weld smaller joints. Even adding or applying material is possible using most metals.
• One special application is fixed welding prior to soldering processes. This allows you to work more effectively because time-consuming clamping and binding work is usually no longer required.

PUK 3 Professional
   

PUK 3 Basic
   

PUK 3 basic is the ideal equipment for jewellery production and/or serial production and can increase the productivity in the larger jewellery manufacturing environment. This unit is meant exclusively for fixing work peices prior to soldering.

Examples of Arc Point Welding Jobs in the Jewellery Trade

• Joining different metals
• Mounting pieces of jewellery without plaster, binding wire or clips; fixing individual pieces
• Welding to semi-finished products, without glow out / annealing of spring elements
• Pins on bracelets and metal watch bands
• Welding work on necklaces (0.3 mm wire)
• Welding on loops
• New types of holding and mounting methods
• Repair of broken sticking pins / loops without touching pearls and stones
• Repair of temperature sensitive parts
• Repairs directly adjacent to precious stones, pearls, opals – without contact
• Repair of cast parts (filling of small cast pores) using the same alloys
• Repair of antique pieces
• Fixing hollow objects for the soldering process
• Repair of spectacles / glasses frames (titanium and stainless steel)

The only elements you operate are the ON-OFF switch and an 8 level output switch.

To work with the welding device you will need the hand piece with a clamped electrode, the welding table and clamp plus the optic unit for eye protection.

When welding using the PUK, please  remember these important points in order to achieve optimal results.

• Always work with a sharp electrode.
• Always grind or exchange the electrode if the tip is burned out or broken.  Exchanging or grinding the electrode is often necessary if the user does not have much practice with the device.
• During welding, make sure your hands are resting and kept steady. Always avoid free-hand welding.
• Also important during welding is to make sure that the work piece has optimal electrical contact to the welding table. If  this is not possible, use a clamp.
• For welding itself, you must touch the electrode tip to the welding point but without too much pressure. This is very important!  Maintain this contact until the welding is complete. The welding process continues automatically and the user does not require any further action.

To ensure optimal welding results you should always use a suitable protective gas. We recommend argon protective gas with a more than 99% purity. Argon grade 4.6 or greater is recommended.  When using protective gas, it is important not to set the flow-through amount too high. 3 litres per minute is normally sufficient.  Only in welding situations where the electrode must be clamped for a longer period of time – for instance welding difficult to reach spots – it can be helpful to set a higher flow-through amount.

Before an unpractised user begins welding a piece for the first time we recommend trying some test welding, since welding results and quality depend on several factors. Different metals or alloys react very differently during welding.  Metal characteristics such as conductivity, melting points and small amounts of alloy that may escape can greatly influence the welding results. The welding results you receive and the size and depth of welding points all depend on the these factors and not on the strength of material used.

Generally note that metals that are well-suited for welding based on their physical characteristics also produce good results when welded using the PUK Spot Welding Device.

All Prices are in Canadian Dollars
Currency Conversions	Shopping Cart Tips Terms of Sale