Guangzhou Durowelder Ltd.

Dc spot welding machine for welding radiators

Automatic rolling seam welding for radiator sealing.

Introduction Resistive spot welding (RSW) is a process in which contacting metal surfaces are joined by the heat obtained from resistance to electric current. Work-pieces are held together under pressure exerted by electrodes. Typically the sheets are in the 0.5 to 3 mm (0.020 to 0.118 in) thickness range. The process uses two shaped copper alloy electrodes to concentrate welding current into a small "spot" and to simultaneously clamp the sheets together. Forcing a large current through the spot will melt the metal and form the weld. The attractive feature of spot welding is that a lot of energy can be delivered to the spot in a very short time (approximately 10–100 milliseconds). That permits the welding to occur without excessive heating of the remainder of the sheet. Applications: 1. Mild steel sheet, stainless steel sheet, galvanized metal sheet spot welding. 2. Metal sheet fixing welding before continues rolling seam welding. 3. Welding fan guard (with proper designed fixing and driving system), welding metal art ware, stationery, cook ware. 4. With special made electrode, it can weld small mesh, birds cage, pets cage, condenser and similar work piece. 5. Weld connection parts, the hinge, nuts and bolt welding, low carbon fasteners and stainless fasteners. 6. Welding high conductive material, like aluminum, electrical contact, copper wire etc.(using Middle frequency power) Single plate thickness: 1. Uncoated mild steel sheet: 0.4-4.0mm 2. Stainless steel sheet : 0.5-4.0mm 3. Galvanized steel sheet (hot dip zinc, zinc5% aluminum, zinc55% aluminum and electrolytic ally deposited zinc coated steel sheets): 0.4-2.5mm Our machine features 1. Manufactured in accordance with international ISO Standard. 2. European CCC, ISO,CE Certified 3. European imported Microprocessor Welding Control has transparent safety cover to protect a keypad and has a lock to allow only authorized personnel to access the program. 4. Welding Control maintains main parameters such as welding current; weld time, off time, etc. with digital accuracy. 5. Any of 23 weld schedules can be easily selected for work. 6. Solid machine structure allows you carry out the Projection and spot welding work. 7. Improved water-cooling system guarantees flawless performance in heavy-duty applications. 8. Machine is painted with Lead-Free paint. 9. All materials used in design are environmentally friendly. Machine quality warranty: 1. Provide one year oversea maintenance support. 2. Lifelong free technical support leading time: 15 days after order.

Main features and applications This machine is made to gain a beautiful linear seam on circumferential shape tank, rectangular shape tank, or butt welding two pieces of metal sheet Watch the video of the linear seam welding machine: Https://youtu.Be/s32daltsp4w Https://youtu.Be/3t_3ch_yu60 ? Automatic argon arc(plasma) straight seam welding machine mainly includes two parts: specially designed straight seam automatic machinery part and standard welding source part ? According to different welding requirement of various materials, the automatic straight seam machinery part can be designed into two kinds: plate type pressing mechanism and keyboard type copper pressing mechanism, to get the regular and stable clamping and cooling effect. ? Standard welding source part includes tig(tungsten inert gas shielded arc welding), mig(metal inert gas shielded arc welding) mag(metal active gas arc welding) saw(submerged arc welding)paw(plasma arc welding), etc, automatic machinery part can be equipped by the standard welding source manufactured by our company , can also work with other well-known brands of welding power ? Automatic machinery part is adopted plc control, dc motor drive has variable welding speed and interfaces with any power source. ? Weld seam back up design has a groove to form a weld on the bottom of a welded plate and provide consistent gas flow to the back of the weld, to assure the stable gas shield and ensure double-side forming in single side welding. ? Automatic straight seam welding machine is mainly used for the high quality and low distortion automatic straight welding, such as metallic cylinders and aligned plates made with stainless steel, iron, aluminium and brass, etc. ? Compared with the traditional manual welding way , high welding efficiency and speed, well welding quality and good consistency

Hs code:8514400090 Introduction This device is the new idea of portable induction heating method, in the old times, if you need to heat a metal part, you have to use nothing but fire (oxygen-acetylene). It somehow has the potential danger for the man who use it. Thanks to the electro-magnetic induction, now we can use only electricity, with a voltage lower than 36v on the coil, it will be safer than any other means heating. Fast and clean, easy to adjust to any position. This device generally used in 1. In the garage repairing center: rusted bolt are not easy to remove from the old component, with durowelder-1kw, you can heat it to nearly 800 celsius without fire, much easier to remove rusted bolt, stuck bolt, rusted nuts on vent pipe caused by sault road. 2. Remove bumper sticker by a flat coil, easy to heat car body surface above 60 centigrade to remove stickers. 3. Doing car side moldings Max heating iron temperature: 800 celsius Heating bolt/elements size: 16-40mm Heating one 20mm bolt to red within 30 seconds Voltage: 110v/220v/240v, 50/60hz Power: 1000w Numbers of coils: Diameter 30mm*2pcs Diameter 40mm*2pcs Diameter 50mm*2pcs Spare copper coil for different shape parts*2pcs Device warranty: one year free technique support and maintenance. Leading time: Sample order: have in stock, send out immediately after order. Bulk order: depends on the quantity, 3-20 days. Shipping: Sample order deliver by dhl, fedex, ups express, normally takes 4-6 days deliver to your hands (door to door) Bulk order may deliver by sea shipping (we can arrange for you till it arrives to your city local port).

DFI Series Digital Force Gauge is our latest microprocessor digital indicator gauge. It has inputs both for dynamometers (force) and load cells (weight) strain gauges. It is ideal to be used in the most innovative static and dynamic measurement systems such as material testing machines, printing machines, test benches and automation. Thanks to its ??0,02% accuracy DFI can be used in quality systems as first or second line sample item if regularly calibrated by SIT centre. The measurement system is made up of an analog section particularly stable at long term, of a carryng frequency feeder which lowers the system thermal drifts and of a 16 bit A/D converter which guarantees 65.000 internal divisions. In order to increase the integration level of the components a traditional mixed tecnology and SMT has been adopted to make the indicator resistant to any kind of vibration and mechanical stresses besides granting the highest reliability of the circuit. The internal batteries guarantee 1 year autonomy also thanks to the AUTO POWER OFF function which activates when any measurement change is detected within 30 minutes. The indicator is equipped with a setting menu which allows to choose the most suitable type of engineering measurement units (kN, daN, lbs, t, kg), the resolution and the digital filter according to the measurement to be calculated. The display also shows a bar analog indication which is operating inside the setting menu too. When the instrument is working in compression mode, SP1 icon is alight; when it is working in tension mode, SP2 icon is alight. Main characteristics: • PROGRAMMABLE RESOLUTION • PROGRAMMABLE DIGITAL FILTER • PROGRAMMABLE BAUD RATE • ZERO FUNCTION • PEAK FUNCTION (positive and negative) • RS232C SERIAL OUTPUT (on request) • DIGITAL FILTER ALLOWS TO AVERAGE UNSTEADY or PULSATING FORCE. Main Specifications: BATTERY LIFE:1YEAR(200HRS) Shown:Actual Size Total Length 7.5” Sensor Thickness:11/16” Range for Nominal Load : 0 to 4.500lbs and 0 to 9,lbs Resolution: 0.01 Accuracy Class:less than +/-0.5% Linearity:less than +/-.20%FS Hysteresis: less than +/-.20%FS Repeatability:less than +/-.05%FS Readings per sec.(0 filter):10(100ms) Display:Custom LCD(H=5/8“ Mechanical Limit: Service Load:120%FS Max Permissible Load:150%FS Breaking Load>300%FS Displacement at Nominal Load:0.007“

Supplier: Glass facade systems including insulated glass systems, tempered glass, laminated glass, sentry glass, heat soak tested glass, aluminium systems of building, facade, industrial applications with new mold and extrusions.
Services: Shipping and transsportation
Buyer: Pvb layers, float glass, aluminium billets, aluminium rolls, galvanized rolls, machinery production lines of relevant products.