Please don’t hesitate to contact us,you will get high-quality but conpetitive price equipment. sales@sunbowtec.com SAFE OPERATION,EXCELLENT PERFORMANCE... ALL WILL BE BEYOND YOUR EXPECTATION Our international customers as follows HYUNDAI ROBOTICS OF NORTH AMERICA； MCC BUSINESS SOLUTIONS C/O INTERFREIGHT； Daewoo Shipbuilding & Marine Engineering Co.,Ltd   UIT BROCHURES 2013v1.1.pdf The new generation Ultrasonic Impact Treatment (UIT) equipment is based on Piezoelectric Ceramic Transducer ( PCT )  technology,   first developed by Sunbowtec for use around the world in 1995. It’s the new direction of UIT technology and has already received international recognition. ADVANTAGES HIGHER EFFICIENCY Transfermation rate of piezoelectric ceramic transducer is nearly 50%  higher than that of megnetostriction transducer(MT). DIGITAL CONTROL Closed-loop control with DSP chip  ensures stabilization of the generator unit. NO WATER COOLING REQUIRED  The ( PCT ) transducer generates less heat than ( MT ) type transducers. Therefore only integral  fan cooling of the (UIT) tool is required. DUTY CYCLE Over 16 hours  of continuous operation if required. APPLICABILITY Suitable for all metallic materials such as high strength steel of 1400 MPa, titanium alloys, aluminium alloys, etc.  1. The theory of ultrasonic impact treatment Ultrasonic impact treatment equipment is consisted of 2 parts. One is ultrasonic impact gun and the other is power control box. This equipment gives the high power to the head of the impact gun, forcing it to impact the metal surface at a speed of over 20,000 times per second, which makes the surface a great plastic transmogrification. At the same time, the impact changes the stress field, dispersing tension stress while transforming it into beneficial compression stress. Also, the sharp increase and decrease of the surface temperature changes the surface metal organization so that enhance it. 2.   How to increase the fatigue life by UIT(ultrasonic impact treatment) Normal welding usually leaves defects in the joint part, including excess weld metal, rut, undercut and so on, which causes serious stress centralization. Meanwhile, welding causes residual stress. All these factors above do harm to the fatigue quality. Also, these is usually dross in the surface of toe zone, which accelerates the outburst of fatigue crack.. Using UIT equipment to process toe zone after welding, we can make a smooth transition to decrease stress centralization by excess weld metal, dispersing defects in the surface of toe zone. At the same time, it creates compression stress there by compression plastic deformation and adjust residual stress field, enhancing the intensity and hardness of toe zone. 3. Parameters     Order No. 1-010-0010 1-010-0011 1-010-0012 1-010-0013 1-010-0014 　Type HJ-I HJ-II-LE HJ-II-SE HJ-III HJ-III-XE Specification 　 　 　 　 　 Control mode Simulating control Digital control Transducer Piezoelectric ceramic Output power 400W 600W Exciting current 0-3A 0-4A Work frequency 20.0±0.5kHz 19.5±1.0kHz 17.5±2.0kHz Max amplitude 35μm 40μm 50μm Travel speed 4-15mm/s 6-18mm/s 6-20mm/s 6-25mm/s Duty circle 85% 90% 95%以上 Control of constant current output Silicon control IGBT chopper control DSP slug control Size&weight 　 　 　 　 　 Box size 660mm×440mm×365mm Generator unit 355mm×205mm×255mm 390mm×235mm×282mm Size of UIT tool Φ83mm×475mm Φ83mm×325mm Total weight 32kg 30kg Weight of generator unit 10.5kg 10.6kg Weight of UIT tool 3.1kg 2.3kg Assembly 　 　 　 　 　 Digital generator unit - - - s s Simulating generator unit s s s - - LCD - - - s s Nixie readout s s s - - BCSC UIT tool - - s s s BCLY UIT tool - - - - △ DS UIT tool - - - - △ XTT UIT tool - - - - s PT UIT tool s s - - - Φ3 guide head - - s s s Φ4 guide head s s s s s Φ5 guide head - - s s s Φ6 guide head - - s s s Φ3 floating pins - - s s s Φ4 floating pins s s s s s Φ5 floating pins - - s s s Φ6 floating pins - - s s s Protective headphones,ear plugs s s s s s Protection block s s s s s Description 　 　 　 　 　 　 Suitable for low strength alloy materials.Non-continuous operation. Suitable for all metallic materials including titanium alloys.Non-continuous operation Suitable for all metallic materials including titanium alloys.Up to 16 hours continuous operation. s_standard configuration，-_no configuraaion，△_matching,Power supply is 220vac,50/60Hz. 4. Equipment appearance UIT TOOLS  Excellent effect UIT equipment can be used in the process of almost all kinds of metal after welding. It is the most efficient seasoning method to disperse residual stress and creating compression stress. By using it, the fatigue strength of steel joint increases by 60-180%, the fatigue life prolongs by 30-130 times. The fatigue strength of Al, Ti joint increases by 26-44%, the fatigue life prolongs by 5-40 times.