Ky-J-500B Multi-Function Iron Sheet & Magnet Installation Machine

The Rise of Magnetic Closure Packaging

Premium rigid boxes with magnetic closures have moved from niche luxury into mainstream retail over the past decade. Brands in cosmetics, spirits, consumer electronics, and fashion increasingly specify magnetic flap closures because they elevate the unboxing experience and reinforce perceived product value. For packaging converters and commercial printers, this trend creates a clear revenue opportunity – but only if production costs stay competitive.

“Automation in magnet placement isn’t a luxury – it’s a prerequisite for profitability.”
Traditional hand-gluing methods simply cannot deliver the consistency, speed, or unit economics that today’s brand owners demand at scale. A single misaligned magnet can cause a lid to sit crooked, undermining the entire premium effect.

Where the Ky-J-500B Fits in Your Production Line

In a typical rigid box workflow the sequence runs: die-cutting, board wrapping, lining, and – critically – magnet/iron-sheet placement before final assembly. The Ky-J-500B slots into the post-wrapping stage. It receives pre-cut and wrapped blanks, precisely positions and presses magnets or iron sheets into pre-routed cavities, and feeds the blanks forward for the next operation.

Because the machine handles substrates up to 1000 x 500 mm and magnets from 8 to 20 mm, it covers the full spectrum of typical gift box formats – from small jewelry clamshells to large presentation cases.

Throughput Economics: A Quick Comparison

Consider a mid-size converter running two shifts producing magnetic-closure cosmetics boxes. Under manual methods, a team of five workers might place magnets at a combined rate of roughly 25 pieces per minute with a reject rate around 10%. After factoring in labor, adhesive waste, and rework, the effective cost per unit is high.

With the Ky-J-500B, one operator achieves the same 25-30 pcs/min at a reject rate below 0.5%. Labor cost drops by approximately 80%, material waste falls dramatically, and output quality becomes fully repeatable. Most manufacturers report a payback period of 4-8 months.

Key Considerations Before Purchasing

• Magnet size and shape – Confirm your closure design uses round magnets within the 8-20 mm range, or inquire about custom tooling.
• Substrate weight and surface – The pneumatic press system works across a wide range of coated and uncoated boards; supply samples for testing if in doubt.
• Air supply – Ensure your facility can deliver clean, dry compressed air at 0.6 Mpa or above at the machine’s consumption rate.
• Voltage – The standard unit ships at 220V; 110V and 380V options are available on request.
• Floor space – The compact 1020 x 620 mm footprint fits into most finishing departments without layout changes.

After-Sales Support and Long-Term Partnership

Kylin Machinery maintains a full spare-parts inventory with global express shipping. Remote diagnostics via video call resolve the majority of technical queries within hours. For customers operating multiple units, preventive maintenance programs are available to maximize uptime and extend equipment life.

Bottom line: If your production involves magnetic closures and you’re still placing magnets by hand, the Ky-J-500B represents the single highest-ROI equipment investment you can make in your finishing department this year. Request a quote or schedule a live video demonstration to see the machine run with your actual substrates.