Milk Powder

Milk powder is fatty, hygroscopic and quick to scorch reputationally — one caked pack loses a customer. The fat content makes the particles cohesive rather than free-flowing: the powder bridges in the hopper, clings to the dosing parts and lifts as fine dust the moment it drops. That dust is the real enemy on the line, because it settles in the seal area and turns a sound weld into a channel leak, and moisture entering through that channel is exactly what causes caking. Dry-path auger filling, dust control and high-barrier films keep it free-flowing through shelf life, and the machine itself has to be built to keep powder away from the sealing jaws. Volumetric cups and gravity systems are unreliable with this material, because a non-free-flowing powder never fills a cup the same way twice — bulk density drifts with aeration and with how long the material has rested. A milk powder filling machine is therefore built around auger dosing: a screw meters a defined number of turns under a controlled outlet, so the dose follows rotation rather than however the powder happens to flow that minute. A hopper agitator breaks bridges before they set, and the shut-off geometry cuts the powder column cleanly instead of dribbling it into the seal. Servo-driven augers let the dose be trimmed without changing tooling, and checkweighing feeds corrections back so the average holds through a shift. Formats follow the market. Single-serve sticks for beverages drive most milk powder stick pack machine enquiries — a stick is a portion the consumer tips straight into a cup, with no scoop and no reclosure. Sachets are the workhorse in emerging markets, where a household buys powder in daily or weekly quantities instead of a tin, and a milk powder sachet packaging machine covers exactly that. VFFS pillow bags take the larger household and catering sizes, where cost per gram matters more than portion convenience. All three formats share one requirement: a wide, clean seal band and a high-barrier film. Typical doses run 15-25 g, from a beverage portion up to a small family sachet. Output depends on how many lanes the pack width allows, not on cycle rate alone. An SPM1200 on a narrow stick reaches up to 840 packs per minute across 12 lanes; the same machine on a wider sachet runs 7 lanes and gives up to 490 packs per minute. SPM320 works from 1 to 8 lanes, SPM800 from 4 to 12 and SPM1200 from 7 to 12 — the pack drawing decides the realistic figure long before the machine does. The Mentpack milk powder packaging machines for this product are the SPM320, SPM800 and SPM1200 multi-lane stick pack and sachet machines, together with the VB, VB-MINI and VB-PLUS vertical machines for pillow bag sizes. Typical users are dairy processors, instant beverage and creamer blenders, infant and adult nutrition packers, and contract packers supplying export markets.