Wolf VPZ140 Vertical Form-Fill-Seal Machine for Printed Film

VPZ140 at a glance

The VPZ140 is Wolf Hangzhou's vertical form-fill-seal machine for printed film. It pulls packaging material off a reel, forms it into a tube, fills it with product and finishes the bag. Wolf lists film guiding, cut-position control from registration marks, automatic temperature control and PLC operation. The machine suits printed packs where the artwork must land in the same spot on every bag. The number 140 is the model name; ask Wolf for speed and size figures in the quotation. [1]

What you need to learn is whether the machine cuts your artwork in the right place, bag after bag, with good seals. That takes a trial on your film against agreed tolerances. A mark sensor on the spec sheet is only the starting point.

What to send for a film trial

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These are items to exchange during the quote. Ask Wolf to return each one as a confirmed limit for the VPZ140 you are offered.

Registration on your own print

Wolf's page says the cut position follows the registration marks. Ask Wolf to run your production film, show how registration is set at the start and cut an agreed number of bags. Decide in advance how print position is measured on the finished bag and how bags outside tolerance are counted.

Watch startup and a restart too. If your film comes in several designs or print repeats, run a few representative jobs and note the setup work each one needs. Ask Wolf for the sensor type, minimum mark contrast, correction range and recovery behaviour, since the page lists none. Wolf's VPP 250 would not answer this question with its recipe storage: loading a saved setting is a different test from proving a new print repeat cuts true.

Have Wolf show what the operator does when a mark is missing or unreadable, following its safe procedure. Ask whether an alarm or automatic reject comes with the machine.

Temperature control and the finished seal

Wolf describes automatic temperature control but gives no working range or sensor layout. Ask for settings matched to your film and agree how the seals will be inspected. A steady reading on the display and a sound seal on the pack are two separate results.

Run the trial with your product at the planned fill quantity. If product can reach the jaws, ask Wolf how the proposed setup keeps the seal area clear and watch it happen. Barrier, leak-rate and shelf-life results call for their own tests on your pack.

Filling and line integration

Wolf mentions an accurate product quantity without naming a weigher or dosing unit. Its VCI series is offered with a feeder chosen from four named types, so asking for the same clarity on the VPZ140 is fair. Have the quotation name the unit and state who commissions its link to the packer. If you are supplying your own feeder, the contract should say who answers for mechanical fit, timing and trial results.

Ask for an installation drawing that shows reel loading, operator access, product infeed and bag discharge. A general vertical bagging description gives no footprint, working height, utilities or cleaning access, and any of these can decide whether the machine fits your room.

Confirm before ordering

Have Wolf state these limits on paper:

• reel limits, bag size range and the dosing unit in the quoted scope;
• the registration tolerance it will accept at trial;
• output in good bags per minute for your film and product.

Film-trial checklist

Frequently asked questions

Sources and verification

[1] Wolf VPZ140 product page
Film guiding, registration cutting, temperature control and PLC. Read 11 October 2026.

[2] About Wolf Hangzhou
Company overview covering vertical packers and full lines.