TPI November 2020

Products & developments

Amada Weld Tech announces MM-410A handheld resistance weld checker

Amada Weld Tech, a manufacturer of equipment and systems for resistance welding, laser welding, laser marking, laser cutting, laser micromachining, and hot bar bonding, has announced the new MM-410A handheld resistance weld checker. The compact unit supports a wide range of resistance welding technologies including AC, DC inverter, AC inverter, transistor, and capacitive discharge.

Featuring a simple and intuitive user interface and colour touch panel display, the MM-410A provides information on current, voltage, weld time and force and is ideal for use in process troubleshooting, where it can be used to correlate waveform and numeric data with process results and provide detailed weld data for process optimisation and validation. If used continuously in a production environment it reduces scrap by detecting drifts in the weld process and alerting operators before process failure. The MM-410A also reduces the frequency of destructive testing and provides an independent way of monitoring the welding

power supply by detecting any drifts in welding power supply calibration. The unit provides ISO17657-compliant measurement for current (when used with available ISO-compliant toroidal coil). It offers easy set up using the 5.7" colour touch panel. The unique seam welding mode monitors AC current and voltage or DC voltage for up to five minutes. Data storage is available using an onboard flash drive. The MM-410A offers Ethernet (TCP/IP) and RS-232/485 communication. Multi- language support includes English, Spanish, Japanese, Chinese, Korean, German and French. Available accessories for the MM-410A handheld resistance weld tester include toroidal coils, force sensors and current/ force sensors. Amada Weld Tech www.amadaweldtech.com

MM-410A handheld resistance weld checker

Fittings in dimension 2 5 / 8 " hot off the press SANHA GmbH & Co KG has added the dimension 2 5 / 8 " to its range of high- pressure fittings, making it the first time that an economical and time-saving realisation of refrigeration and cooling lines in this dimension is available. more and more important. Increased efficiency and the use of more sustainable refrigerants such as CO 2 (R744) are expected to lead to higher overall efficiency.

The fittings of the ‘SANHA RefHP’ brand (Series 29000) include high- pressure solder fittings for copper-iron alloy pipes for use in cooling systems. These solder fittings are made of copper-iron (CuFe2P, CW107C). SANHA has been actively offering this series for several years for high-pressure systems that are operated with CO 2 as a cooling medium, for example. The operating pressure extends up to 130 bar and the operating temperature from -196 to 150°C. In air conditioning and refrigeration technology, especially in commercial or industrial cooling systems, environ- mentally friendly solutions are becoming

These refrigerants are used primarily in the transcritical range and with higher operating pressures. Especially with larger dimensions such as 2 1 / 8 " the demand is growing. This also applies to

the dimension 2 5 / 8 ", which is used in industrial plants and large refrigeration piping. SANHA now also offers this dimension and thus covers the entire range of CuFe solder fittings for high-pressure applications. The RefHP series solder fittings offer a number of advantages over classic welded connections with stainless

steel or brass. For example, brazing is about two and a half times faster than TIG welding. In addition to the time savings, lower labour costs and less training for welding specialists speak for the use of RefHP copper-iron fittings. The series can be combined with all common tubes made of the same material. SANHA GmbH & Co KG www.sanha.com

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TUBE PRODUCTS INTERNATIONAL November 2020

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