Zipper Pouch Packing Machines

It’s a feature, not a bag type. The zipper is a closure mechanism added to the top of a premade-bag pouch — stand-up doypack, 3-side seal sachet, side-gusset bag, or flat-bottom box pouch can carry a zipper (rollstock pillow/stick lines do not support it). Industry buyers typically search "zipper pouch packing machine" when they mean "I need a machine that can fill bags with a zipper closure" — which is exactly what the SW-D / L / Y premade-bag fillers do.

No. The same SW-D / L / Y premade-bag rotary fillers run zipper and non-zipper bags interchangeably. The zipper-opening device is an option: the operator switches it on for zipper bags and off for plain bags at the touch screen, so changing between plain and zipper bags of the same size takes about 0 minutes. With the device on, it opens the zipper and the next station fills below the zipper line.

Three types: press-to-close (most common, two interlocking plastic profiles), slider zipper (premium plastic slider tab), and child-resistant (press-to-close with stiff resistance threshold for household chemicals and similar products). The zipper-opening device opens press-to-close zippers automatically; whether it can open a slider or child-resistant zipper depends on the bag. The fixed gripper position sets the zipper position, and switching zipper types needs no machine reconfiguration. See the §5 zipper types table above for application and cost comparison.

Yes. With the zipper-opening device switched on, the same machine and bag size run about 3–5 bags/min slower — for example, roughly 25–35 bags/min instead of 30–40 (an illustration, not a guaranteed rate). On the SW-D series (rated 16–50 bags/min for non-zipper bags), plan zipper-SKU output with that difference in mind.

Yes. K-seal stand-up pouches — and flat-bottom box pouches, a different box-shaped format — commonly carry a zipper for premium specialty coffee, loose-leaf tea, sport nutrition. The zipper-opening station handles K-seal pouches the same way as standard doypacks — you just need to specify K-seal bag template at quote stage so we set the gripper spacing correctly for the wider base.

Standard premade-bag films — PET/PE, PET/AL/PE foil laminate, kraft paper laminate, recyclable mono-PE/PP, and metallized films from 60–150 micron thickness all support zipper application. The zipper itself is HDPE or PP, color-matched to the bag print. Ship sample bags with your zipper to our Guangdong factory for a sealing test before order — we run the actual SW-D / L machine to verify zipper-opening reliability with your specific zipper-bag combination. For a comparison of the heat-seal, impulse, and ultrasonic methods used to close the top edge above the zipper line — and what seal integrity testing looks like in practice — see our bag sealing methods guide.

Per configuration, not from a list. The quote depends on the filler your product needs (granule, powder or liquid), the bag-width variant, and custom options such as special voltage or a multi-language HMI. Send your product type, bag dimensions, zipper type and target output, and our engineers usually reply within one business day with a sized quote and a layout drawing. To see what moves a quote up or down and what to prepare before you ask, read our packaging machine price guide.

Standard lead time 15–30 working days from deposit confirmation to FOB Shantou for any of the 3 SW-D / L / Y machines, built at ShengWei’s Guangdong factory. Payment: 30% deposit, 70% before shipment by T/T. Deep-custom builds run longer — up to 45 working days, depending on complexity. Sea freight transit: SE Asia 7–14 days, Middle East 18–25 days, Europe 30–40 days.

Yes — this is especially recommended for zipper bags because zipper-opening reliability depends on the specific zipper profile and bag-converter quality. Ship 50–100 sample bags with your zipper attached, plus 2–5 kg of your product, to our Shantou factory. ShengWei runs a packing test on the actual SW-D / L / Y machine matching your spec, records video of the zipper-open-fill-seal cycle, and shares results with recommended speed and torque settings. Reach our sales team via the contact page for the shipping address.