Industry News

Walk into almost any factory substation, and you’ll see one or more square, grey metal boxes labelled “SG”. They don’t spin like motors, they don’t blink like PLCs – they just sit there, quietly taking the incoming voltage and turning it into exactly what your machines need. That CNC lathe over there? That imported laser cutter? They run smoothly because this unassuming box has their back. The SG series is a threephase drytype transformer. But unlike the SBK autotransformer we talked about earlier – which saves material by sharing one winding – the SG takes a different approach: isolation, reliability, and the ability to go either up or down in voltage.

– Unlocking the Secret Behind That Handy Voltage Box Walk into almost any factory floor, and you’ll spot a square metal box with “SBK” printed on its label. It sits quietly in a corner, but it solves a headache that keeps popping up: you’ve got a shiny new machine imported from abroad, yet its voltage rating doesn’t match your local grid. Plug this box in between, and the machine hums to life. That’s the SBK autotransformer at work. So what’s actually going on inside? Let’s skip the heavy textbook jargon and break it down in plain language. One coil, two jobs

Solar has grown fast. You see it everywhere — rooftops, factory sheds, even rural houses. But there's one problem that's never been fully solved: The sun doesn't shine all the time. Cloudy days, nighttime, rain — no generation. But people don't stop using electricity just because the sun went down. That's why storage came in. And between storage and the grid, there's one thing you can't skip — the photovoltaic energy storage transformer.

Control Circuit Power Supply: Not Something to Cut Corners On A CNC machine's ability to do its job depends on the spindle, the tooling, and the servos. But whether it runs reliably without errors often depends on the small, unassuming components—the PLCs, relays, contactors, and indicator lights. The power supply for these control circuits is not something you can afford to compromise on. The JBK3 series machine tool control transformer is purposebuilt to supply power to the control systems of machine tools and automation equipment. It doesn't drive the main spindle motor or power the cutting tools. Its job is to feed the machine's "brain"—keeping PLCs from glitching, contactors from chattering, and sensor data from drifting.

Need a clean, stable power supply for your control circuits? BK has you covered. In factories, workshops, and automation systems, there's a small device that rarely gets noticed — until it stops working. When a CNC machine's PLC loses power, the contactors chatter, or the indicator lights go dim, production stops. And more often than not, the culprit is a control transformer that wasn't up to the job. The BK series singlephase control transformer is built to keep control circuits running — reliably, continuously, and safely.