Automated Bagging Without the Project: What a Simple Machine Gets You

The Mushiny PolyPacker has a machine rate of about 1,500 bags an hour. A realistic sustained rate for an operator is 500 to 600 bags an hour, depending on your order profile. Those are two different numbers, and this article keeps them apart. The first is what the machine can do. The second is what you should plan around.

Most automated bagging machines are a project. They come with a site survey, a conveyor interface, a controls integration and a capital approval. The PolyPacker is built the other way. It is unboxed, wheeled into place and plugged into a standard outlet, and integration means sending your label print job to it. This article covers what manual satchel packing costs you, what the machine does, what you need in place, where it is the wrong answer, and why renting changes the decision.

What does manual satchel packing actually cost?

It costs the operator's time on every order, and most of that time is not packing.

A manual bench has an operator do five things for each order. They print a label, peel it, apply it, find and open a bag, and seal it. Only one of those steps touches the stock. The rest is handling that exists because the label, the bag and the seal are separate jobs on separate equipment.

That is why packing is often the bottleneck. Picking can be fast and sortation can be fast, and the orders still queue at the bench. Mushiny puts the practical gain from the PolyPacker at triple the productivity of a manual bench, because the operator stops printing, peeling, applying and sealing and only loads the item and presses the button.

To put a number on your own bench, time one operator for an hour and count finished bags. Multiply the hours by your loaded hourly cost. That is your packing cost per bag today, and it is the figure any machine has to beat.

What does an automated bagging machine do?

It takes the label, bag and seal steps off the operator. On the PolyPacker the operator makes five moves.

1. Scan the pack slip or pick slip. One scan starts the job.
2. The shipping label prints. The machine prints and applies it, so there is no separate printer and no backing paper to peel.
3. A bag drops and inflates. Automatic bag replacement and air inflation open the next bag ready to load.
4. Place the items in the bag. This is the only step that touches the stock.
5. Press the two buttons to seal. The machine seals the bag, drops it and conveys it away.

Label printing, label application, bag replacement, sealing and conveying all happen in one machine. The bench no longer needs a printer, a labelling station and a sealing step side by side. Smart air blowing adjusts to the bag as it opens, which cuts the noise and makes the machine easier to stand beside for a shift.

It takes transparent or opaque poly bags, white or black. Bags run from 200 to 800 mm long and 200 to 600 mm wide, in thicknesses from 0.03 to 0.1 mm, and the machine holds objects up to 200 mm thick. That covers apparel, general merchandise and most of a mixed ecommerce range.

How much integration does it need?

The machine needs very little integration. It is simple: send the machine a label to print, and a bag will drop ready for packing.

In practice that means you divert your label print job to the bagging machine. You do not rebuild your warehouse system around it. The machine communicates over Ethernet and WiFi, so the print job reaches it the same way it would reach any networked printer.

A larger system touches your WMS, your conveyors and your controls, and it needs its own project plan. The PolyPacker does not, because the thing you hand it is a label, which you already produce on every order.

Mushiny's larger systems do integrate with WMS, WCS and ERP where the job calls for it, and that work is worth doing there. For a packing bench it is more than the problem needs.

What do you need in place before it runs?

The table covers the four things people ask about, with machine figures from the PolyPacker specification.

Do you have to buy special bags?

No. The bags come in rolls and can be customised to your liking, including colour and your logo. Bags can be supplied through Mushiny's partner Omni Group, at a rate that is likely more competitive than you pay now. That last point is worth checking against your current invoice, because bag cost is a running cost that repeats on every order.

Why does renting change the decision?

It turns a capital decision into an operating one. You do not have to buy the PolyPacker. Rental options are available in Australia through Mushiny's partnership with Omni Group.

Buying a machine means a capital request, an approval cycle and a payback argument made before anyone has seen the machine in your building. Renting moves the cost onto the same line as your labour and your consumables. You can test whether it lifts your bench rate with your own stock and then decide, without having committed capital first.

That matters most for operations that are unsure about their volume, growing, or facing a seasonal peak. For rental terms and numbers, ask Mushiny. They will put the figures beside a purchase so you can compare the two.

Where is it the wrong answer?

A simple machine suits a simple job. These are the cases where it does not fit.

Your volume is low. If one operator packs a few dozen orders a day, a machine of any kind sits idle for most of the shift. A manual bench is the right answer until the bag count gives the machine something to do. Count your bags a day before you count anything else.

Your packaging varies a lot. The machine runs poly bags within a stated size range. If your orders go into a spread of boxes, cartons, void fill and mixed packs, a bagger handles only the share that suits a bag.

It does not go in a satchel. Anything thicker than 200 mm, longer than 800 mm or wider than 600 mm stays on a manual line. Fragile items that need rigid protection also belong in a box. If the oversize end of your range carries most of your volume, a bagger is not where to start.

Packing is not your constraint. If pickers stand waiting on stock, or the sortation step is the queue, fix that first. A faster bench will not move an order that has not arrived. Watch one shift with a stopwatch before spending anything.

You need the full rate every hour. Plan around 500 to 600 bags an hour, not 1,500. The higher figure is the machine rate. Your sustained rate depends on how many lines each order has and how quickly the operator can load them.

How does it fit with the rest of the warehouse?

Bagging sits at the end of the flow, so it takes whatever the earlier steps produce. Pairing it with batch picking and a sorter means the bench receives finished orders at a steady pace. Mushiny's Minisorter and shelf-to-person systems feed that kind of flow. You do not need either to use a PolyPacker, and you can add them later.

The machine is on show at the Chatswood Tech Centre in Sydney. Bring your own product and labels and Mushiny will run them through it. You can also see running sites on the reference sites page, or ask about a tour or rental.

Frequently asked questions