High Class Reflow Soldering: SEHO MaxiReflow
SEHO sets another milestone in soldering technology with its convection reflow soldering system MaxiReflow. The machine is featured with a revolutionary slender conveyor system and a completely revised central process gas cleaning system. Therefore, SEHO MaxiReflow already won several technology awards.
Equipped with the proventangential blower technology, the SEHO MaxiReflow ensures perfect and reproducible soldering results. The special shape of the nozzles and the optimized FDS gas leading principle guarantee a highly efficient heat transfer to the assemblies, which allows pre-setting of remarkably lower temperatures to protect PCB material and components from overheating.
The SEHO MaxiReflow 3.0 with a total heated length of 3150 mm is offered with three different heating zone numbers (10, 8 or 7 top and bottom zones). The systems with 10 and 8 zones as a standard are designed to be operated with or without nitrogen and are featured with a powerful cooling aggregate. The basic system, i.e. the MaxiReflow 3.0 with 7 zones, is designed to be operated in ambient atmosphere and equipped with a cooling blower unit.
SEHO MaxiReflow 3.6 is provided with a heated length of 3700 mm and a total of 10 or 12 top and bottom heating zones.
A special feature of the SEHO MaxiReflow is the totally new, award-winning transport system “LowMassConveyor”. Here, the chain guide profiles are carried by contiuous steel cables, each of which is prestressed with a tensile force of more than one ton through the entire system. It is thereby ensured that the chain guide profiles are aligned absolutely parallel for highest process reliability. Extremely slender chain guide profiles which are “thermally invisible” can thus be utilized at the same time.
Only one spindle mechanism is still required within the process zone because the parallel alignment of the chain guide profiles is solely achieved by means of the tensile force from the prestressed cables. This method results in less potentially corroding surfaces on which the contaminated process gases can condense: whereby the outlay on maintenance and the extend of possible wear are reduced to a minimum.
Another advantage of the MaxiReflow is the improved process gas cleaning system which enables long maintenance intervals. The contaminated process gas is extracted from all heated zones and lead through a cyclone. The temperature inside the cyclone is controlled to allow optimum condensation. After passing through the cyclone, the cleaned process gas is directed back to the last preheat zone. This, additionally, allows a high temperature difference between the last preheat zone and the first peak zone.
With its innovative concept and all the well thought out details the SEHO MaxiReflow is ideally suited for all existing and future soldering requirements.
For More Information Visit: http://www.seho.de
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