The world's highest power density of 40 ℃ temperature environment continued to work uninterrupted 4.0 electrode, weighing only 7.7kg! RISC computer intelligent control of 25 international and national patent technology, dual-CPU computer control system to achieve self-control self-diagnosis, a number of self-protection, single knob to achieve full welding current is precisely regulated process. Computer mouse button knob a precise control of all welding parameters LED digital display along with AC and DC welding characteristics and ease of functionality beyond the traditional covers and manual arc welding machine, to adapt to a variety of acidic (J421, J422, etc.) alkaline (J506, J507, etc.) and stainless steel, cast iron, aluminum and other electrodes. Can be adapted to 290V ~ 480V mains voltage and generator power supply environment. 4.0 Technical parameters 4.0Q special welding electrode input voltage / frequency three-phase 380V / 50Hz Rated load voltage 61 ± 5V 40 ℃ 24h continuous load current 280A Weight 7.7kg pull adapt voltage range 290V ~ 480V power (available for large voltage fluctuations Machine power supply environment) applicable welding electrode diameter 1.6-4.0mm select acidic (J421, J422, etc.) alkaline (J506, J507, etc.), stainless steel, cast iron, copper, aluminum and other rated input capacity 9kVA efficiency 90% power factor 0.9 lack of self-protection phase, overvoltage, undervoltage, overtemperature protection features such as a complete self-protection class IP21 Insulation class F Dimensions 340mm × 189mm × 333mm Screen type LED adapt ≤100m 50mm2 copper output line length independent arc circuit has a single mouse knob to select the function knob drive current to achieve full weld precisely regulated service .jpg 1, the whole year warranty and lifetime maintenance; 2, free installation, commissioning and operation and maintenance personnel training; 3, to provide free software upgrades; [acceptance of] a way in site inspection equipment; 2 - sets (data, spare parts) and the appearance of the product acceptance; 3, sent by the supplier equipment installation, commissioning; 4, the device of the feature presentation; five consecutive 10 hours pager; 6, on the demand side for the side selected workpiece marking, testing marking meets the requirements; 7, test the technical indicators; 8, sent on the demand side for side operation, maintenance personnel for a period of one business day of technology training; 9, after the equipment has been trouble-free commissioning, acceptance report signed on behalf of both parties. [Training] 1, the supplier sent to the demand side, on-site training (complete equipment installation commissioning implementation); 2, trainers: operatives, electrical, mechanical maintenance personnel, from the demand side, the number of custom; 3. Training: installation of equipment Commissioning and marking machine principle, composition and commonly used computer knowledge. Computer programming, electrical control theory and routine maintenance of equipment, etc., and the actual operation. Common training equipment troubleshooting, further familiar with the equipment, answering questions, and finally the training of personnel assessment. [1] quality assurance services, the supplier to provide the following technical support, guidance demand side safe and correct use and maintenance. Using (1) the equipment specification, application software backup; (2) product certification. 2, the warranty period is 12 months from the date of signature of the time the results of the final acceptance date. Year warranty, the warranty period, maintenance costs, as appropriate charge. Equipment failure, the reaction time was 4 hours, if necessary, to the site for the party maintenance personnel normally arrive at the scene within 24 hours.