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2022.07.31
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Enjoy Free Shipping Worldwide! If you want to practically see everything then watch my video tutorial given below. What Holliday is 3 weeks? Currently, I am running my own YouTube channel "Electronic Clinic", and managing this Website. Leave feedback about your eBay ViewItem experience, 12V 18650 Li-Battery Energy Spot Welder PCB Circuit Board/Auto Spot Welding Pen, - eBay Money Back Guarantee - opens in a new window or tab, cleared payment - opens in a new window or tab, - for PayPal Credit, opens in a new window or tab, Learn more about earning points with eBay Mastercard, - eBay Return policy - opens in a new tab or window, - eBay Money Back Guarantee - opens in a new tab or window. Download Simulation: spot welder simulation in proteus. The welds were not good at all. Other possibility is indeed to have two switches and banks looking at the Sunstone documentation I looks like they do it that way. I have done all the soldering. I was pretty confused and I had no idea for how long I had to connect the electrodes. If you'd like to get the additional items you've selected to qualify for this offer. 1700A is starting to give reasonable results but the nudget area is still small. welder wonderhowto gadget welders circuitry gadgethacks Now I determine the current by parameter estimation of a LT-spice model which also predicts the current but direct measurement is simpler. So, at this point I decided to add some kind of control circuit to my Spot Welding machine. As you know each lithium Ion Cell is 3.7 volts which means you will need to connect many cells in series to get the 48volts and to improve the current you will also need to connect the lithium ion battery cells in parallel. Z ?a Keep all leads as short as possible (check the kWeld operating manual for that), and start with low voltage while attempting to calibrate. A discharge of 20ms leads to a remaining voltage over the resistors of 10.6V and a current of 1700A (so within kweld boundaries). You could reach 1500A with a 4S but you decided that 1300A was sufficint while not increasing the product price substantially. 4000$ for a professional Sunstone welding machine. You could use e.g. With the given current output, its max power is rated at 1.5 KW for the best possible welding performance. (https://forum.esk8.news/t/kweld-spot-welder/6926/99). I am contemplating a 5S configuration for the LTO cells. Recently, I purchased this 2nd hand Microwave Oven transformer for around 15 dollars. [-'5k8*#wX5d--U`tY%eb\7 #\'u\C-.N`!w2>J1bzZ1c@:Y~&adXmNFN}{Z3-@g 0>kX`=6BZz*D;a {A,HH| QV?jioFdW;mgdwp_vv=P%B|I5wS+0&zrfntL1#3?Wf3]hNdac p&P5Co: 0,"p8Kf8]\Lkdm Ke;k,4F%54KZjzX5/3"T?a,|/`Vwql#Rox ZC;pl Just send me an email, and I can answer your questions (also much quicker). >> Thanks alot for that, I will. Buy Quality Spot Welders Directly From China Tools Professional Store Suppliers. But its impossible without a fully automatic or semi-automatic control system. What I also do not understand is why kweld cannot benefit from the fact that when a capacitor is discharged also avalanche energy is reduced. If you are using a different gauge wire and different number of turns then you will have to use some other value capacitor. With a 1.0mR resistance it would be slightly better then your ultracapacitor module (1.1mR for a 2P) while having all the advantages of a normal battery bank. As a result, almost all battery spot welders support welding these batteries along with a few others. Right now, the relay2 is off so thats why the transformer is OFF and as a result there will be no welding. Comprehensivequalitycontrol andaffordableprices, Fast and convenient door to door delivery, More than 40 different secure payment methods. I have been doing Job in UAE as a site engineer in an Electrical Construction Company. While you may not have heard about Sunkko in the past, you can certainly consider its battery spot welder if you want something made for heavy-duty usage. LiIon cells with aluminium cans are the same story, that doesnt work. (1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.

According to different configurations, the thickness can be about 0.1MM-0.15mm, After power on, press and hold the switch for 2 seconds to turn on, There are 4 modes, press and hold the switch for 3 seconds to switch to a beep sound and finish, Level 1: Low power1, green light flashes once, 2nd gear: medium power1, green light flashes twice, Level 3: High power1, green light flashes three times.

To help you out in picking the right one, we have explained all the features and details of these various battery spot welders. Copper electrodes for spot welding machine, Nickel plated strip for lithium ion batteries. also which min specs? Took 3 weeks for item to be shipped. Offers a welding thickness rating of 0.01 mm to 0.15 mm, Offers a welding thickness rating of 0.05 mm to 0.2 mm, Does not mention a specific welding current rating, High-performance output for accurate welds, In-built high-rate lithium polymer battery. Typically this is around 15%, so that number results in 111780J of welding pulse energy, or 2235 pulses of 50J each. And despite being a budget option, this YaeCC battery spot welder also includes a 1-year warranty for peace of mind. Zentek Electronics & Communications Pvt Ltd is all set to break the barrier and redefine the established boundaries of the Electronics & Telecommunication market and is shifting the productivity frontier to new heights.

With this basic setup, having no automatic transformer disconnection circuit you will have to be very careful and very quick, because if you touch the electrodes for even 2 seconds you could easily damage the lithium Ion batteries and this is something that you really dont want. You will have to release the button to charge the capacitor and press the button again to turn ON the relay2. Before, I am going to explain other things, first a few words about the sponsor of this Spot Welding Machine Project for helping me purchase the required components and tools. Altium Designer enables engineers to effortlessly connect with every facet of the electronics design process. >> as I described, kWeld does not need that, it produces optimal repeatability because of its energy metering approach. It doesnt matter if the push button is pressed for a long time, it wont do the welding. To keep this welder cool during operation, Mophorn has included a 4100 RPM cooling fan and an efficient radiator. which min-max amps?

The Mophorn 737G battery spot welder comes at the 1st position of this list since it can be a great option for all kinds of detailed electrical projectors. Well I am trying to increase the weld current using capacitive discharge in a safe way for the kweld, meaning within SOA of the MOSFETs and within the tested max of inductive energy. Copyright 1996-2022 IndiaMART InterMESH Ltd. All rights reserved. You are stressing the 2000A boundary but that is when the current is switched off or am I missing something here? >> Classical capacitor discharge welders suffer from the fact that the flowing current quickly drops while the capacitor is being discharged. ElectricalElectronicsEmbeddedPowerRoboticsARMIOT, Mini projectsMicrocontrollerArduinoSolarFree circuitsHome AutomationSeminar TopicsElectronicsQuestions, CapacitorsResistorsFiltersDiodesTransistorsAmplifiersIO DevicesThyristorsDC CircuitsNumber System, Welding Symbols | Basic and Supplementary Weld Symbols Types, 7 Best Miller Welders of 2022 Reviews & Buying Guide. Something went wrong. If you compare the specs with this concept you can surpass a Sunstone CD600DP with kweld. I had tested multiple pulses, there was no benefit. The 3S vs 4S for the kCap was primarily an economic choice I assume then? Hi Frank, Get a 10% discount for your first order! Works Great This transformer is designed for 220Vac and 50Hz. You can use any tools, but you have to be careful, you cant cut the primary winding. LTO batteries are the future of energy storage and will become a lot cheaper (and better!) View cart for details. There is also another set of winding, which is the secondary winding and I dont need this winding. I like that idea, and this would be possible with kWeld in general. While there are a lot of battery types available out there, two of the most popular ones used in circuits include 18650 and 14500 batteries. 2S isnt enough voltage for the welder. This is relay1bottom one to which a push button and a capacitor are connected. If your battery spot welder also comes with all these, not only do you get a better value for money, but it also allows you to start using your battery spot welder right away. What I also do not understand is why kweld cannot benefit from the fact that when a capacitor is discharged also avalanche energy is reduced. Your approach should of course work well, if you can obtain accurate inductance values. Usually, battery spot welders offer a work cycle of about 20 pulses within a minute. A 5S LTO battery would have a series resistance of 5milliOhms or lower with a maximum voltage of 14.5V. @stefan-3702 (max reply level reached here): I had misread, thought that you were setting up a spice model for the kWeld power switch (as we last talked about that). When I press the first electrode the nickel strip makes a strong contact with the battery surface, now this is the perfect moment and when I press the 2. https://shop.gwl.eu/LTO-technology/Cylindrical-Lithium-Titanate-Oxid-Battery-Cell-LTO-2-3V-30AH.html#tab3. The MOSFETs cannt handle much more current either, tested max is 2800A but they only survive a few thousand shots at this level. Enjoy Free Shipping Worldwide! But at some point, the MOSFETs will start giving up due to unequal current sharing and electro migration. Route it your way through any angle, tune for delay, Push, Slide, and Walkaround faster than ever. My board have UIRFS8409. And because this is a premium offering from Sunkko, it also includes their standard 1-year warranty. I simulated the circuit with LT-spice and a 1uH inductance and get a little bit of different values but the idea remains the same. Is there a reason why my question is censored? (3) These estimates are based on normal circumstances and are not a guarantee of delivery times. is it possible to use a standard 12V car battery instead of the 3S Lipo?

In that case, you need special tools due to which we are here with the best battery spot welders that have been chosen as per these factors: Surely these factors can come in quite handy while picking the best battery spot welder for you. This device uses a contact resistance between spot welder and substrate contact point which bond the points perfectly. With Altium Designer you can create PCB designs with an intuitive and powerful interface that connects you to every aspect of the electronics design process. The MCU and its internal ADC are fast enough to track the current at this speed. >> If I look at the design I see no shunt so I expect you are now using de Rdson as a shunt.

Say that is 4000A you will still have not problem. welder welding circuit My practical test results were different, which is why have set that limit. Without any further delay, lets get started!!! You can start with a 50uF capacitor; keep increasing the value until you get the desired output. Id say none of the other MOSFET based DIY spot welders can kWeld has the highest current rating among all of them. Talking about its supported batteries, this battery spot welder can be used along with 18650 and 14500 batteries which are the two most common types out there. the protection diodes. Seller assumes all responsibility for this listing. All Rights Reserved. ZHUVATAR store spot welder is suitable for people who want a budget-friendly and still need a model with decent performance. Buy Quality Spot Welders Directly From China Tools Professional Store Suppliers. This is primarily due to the reason that this welder machine supports a welding thickness range of 0.01 mm to 0.15 mm which is quite lower than others. When I press the first electrode the nickel strip makes a strong contact with the battery surface, now this is the perfect moment and when I press the 2nd electrode, I dont get enough time to press the nickel strip against the battery surface. The problem with these bits is that, the bits itself get welded to the nickel strip. This 60% DoD would give me 0.60 * 30Ah * 11.5V = 745 200 joules -> more then enough welds for every conceivable battery. Keep in mind that not only the battery ESR has to be overcome, the welder contributes ~ 3milliOhms and a typical weld spot has another 1milliOhm. As spot welders and other welding machines do not come in cheap, you would want your battery spot welder to stay functional for as long as possible.

Yes, that isnt a bad idea. *Estimated fee, the actual amount is calculated during checkout. Zentek Electronics & Communications Pvt. Next, I used a 16mm wire which was 6 feet long, you can make it 7 feet if you want slightly longer wires, I used this wire as the secondary winding. (adsbygoogle = window.adsbygoogle || []).push({}); Altium Designer is the worlds most trusted PCB design system. kWeld does the rest then with its energy metering. the firmware aborts when detecting arcing). For the perfect weld you will need to press both the electrodes so that there is a strong contact between the welding surfaces. Speaking of the welding function, that can be done by using either its push-up head or the included foot pedal. Never perform these tests alone if you are doing it for the first time. Sunkkos 788H battery spot welder comes at the 2nd position of this listicle as this welder offers similar results to a standard battery spot welder. This unit supports a welding thickness range of 0.05 mm to 0.2 mm along with a welding current output of 50A to 800A making it the perfect option for heavy-duty usage, especially at the given price tag. Im very interesting by this project. Our endeavor has been to provide cutting edge technology based solution to our customers. Total delivery time is broken down into processing time and shipping time. Even if you have a powerful battery spot welder, you will not be able to use it to the fullest if you do not have the right controls at your disposal. Just send me an email, and I can answer your questions (also much quicker). They are designed for resistive spot welding but you need higher currents than normal and I am nearly there. kCap is 3S2P, which generates approximately 1300 amps. The capacitor discharged energy is 0.5*3.9(14.4)^2=404 Joules of which goes 1/6 into the weld = 67 Joules. The Soldering iron bits are connected and the 220vac on the transformer primary side is connected. All welding machines also have a rating known as work cycle which tells you about the time for which they can work at a given time. is it possible to mount a better flyback diode One of the most unique things about this battery spot welder is that it includes a total of three welding modes which include the push-up head, foot pedal, and even a mobile welding pen for high versatility. YaeCCC is another comparatively smaller brand of welding machines that you can consider if you are on a budget but still want something that offers standard performance numbers.