Film liners inside cases protect powders from moisture and leakage — but only if insertion, opening and sealing are automated correctly.
Why powders need a liner
Bulk powders and grains lose moisture, gain odor, and leak through corrugate seams during long transit. A PE or multilayer film liner creates a sealed barrier inside the case that corrugate cannot provide.
Automation pitfalls
Manual liner placement is slow, inconsistent and unhygienic. Common automated failures include: static clinging film that misses the case, bag mouths that collapse during filling, and liners sealed before filling is complete.
How the YM-620 solves them
Static-control film handling keeps the liner flat through insertion. Servo-driven placement positions the liner to +/- 2 mm every cycle. The bag-mouth opener holds the liner open for gravity or volumetric filling, and sealing triggers only on a confirmed fill-complete signal.
Hygiene and validation
For food contact, the YM-620 is available in washdown stainless with FDA-compatible liner contact surfaces and documented cleaning procedures.
Yield and sustainability
Automated lining reduces film waste per case and lets you specify thinner films safely — cutting cost and packaging weight without compromising protection.