Custom Die Cut Parts: Kiss Cut vs Full Cut vs Stamping

Technical guidesPublished 07 November 2026Updated 07 November 2026

Kiss cutting slices the material layer and leaves the liner whole, full die cutting separates the part from the sheet, and progressive stamping punches blanks from a moving web at press speed; the geometry of the part and the way it is fed decide which of these three belongs on your purchase order for custom die cut adhesive parts. Buyers routinely spec one route out of habit and need another once the assembly method is described, so this comparison is organised by what each route does well, where it struggles, and what to confirm before tooling is quoted.

The difference lives in one sentence

Ask a converter what happens to the liner. If the liner stays uncut, it is a kiss cut and the parts remain registered in position for peeling or machine pickup. If the liner is cut too, the part is an individual piece and something else must present it: a sheet, a strip on a slit liner, or a bowl feeder. That single distinction changes packing, the station design and often the material cost, because a full-cut nest wastes the lanes between parts while a kiss nest keeps the web assembled.

The routes side by side

No number in this table is a promise; the confirm column is where the real figures get agreed against your drawing.

Route	Where it fits	Where it struggles
Kiss cut, flat-bed	Sheets and short runs; operator-peeled liners; multi-layer builds	Deep-cut risk on worn rule; thick stacks resist clean kiss
Full cut, flat-bed	Ready-to-install pieces; prototypes; outlines that change	No position keeping without a carrier or re-lining
Rotary, roll-to-roll, kiss or through	High-volume thin materials; machine-fed strips; stable nesting	Thick or compressed builds; tooling cost at low volume
Laser, with or without a liner	Complex outlines without hard tooling; fast revisions	Burn discolouration on some films; throughput at volume
Progressive stamping (industry route)	Very high volume blanks at web speed	Not a tape-converting step; suited to foil and film stock

On the last row we are deliberately honest: progressive stamping sits with metal-side suppliers, and where a project needs stamping-speed output from thin materials we run the rotary route instead. The four processes we cut with are flat-bed, rotary, laser and CNC, described on the die-cutting service page.

How the liner decision moves the route

In custom die cut work, the feeder is the customer. A pick-and-place station with a vacuum nozzle wants parts kiss-cut on a slit liner, registered, with curl controlled by the liner weight, PET in 25 to 100 µm being the usual band. A manual station peels from sheets and tolerates heavier matrix. An assembly that stacks built-up layers wants full-cut pieces presented on a carrier tissue, which adds a converting step and its price. A line that wraps or banding-feeds accepts cut lengths, the lowest-cost option of all, because there is no tool to buy. The same part geometry quoted against these four feed methods produces four different prices and two different routes, which is why "it is just a small square" is never the whole brief.

When a custom part is the wrong answer

Four honest cases. First, cut lengths on a roll do the job; if nobody picks, places or registers, buy a slit strip and skip the tool. Second, the design is not frozen: every outline revision costs tooling on hard routes, so keep iterating on laser until the geometry earns steel. Third, the function is bonding, not shaping, and a dispensed adhesive or a die-cut dot pattern of standard tape beats a moulded-feeling part. Fourth, the joint needs thickness the tape families here do not carry: foam builds run 0.4 to 3.0 mm and double-sided constructions 0.05 to 1.0 mm, and if the gap demands more than a compressed layer can bridge, the right supplier is a moulding shop, not a converter.

Two questions that follow every table

How is kiss depth actually controlled, and how do you know it held?

Mechanically, depth is set by the rule or the beam and verified on the first article: a clean cut through the material with the liner unbroken and unmarked at the cut line. On a run, it drifts with rule wear and platen packing, so the review question is not what the press can do once but what is checked between setups, and what the reject rule is when the liner is nicked. We state the achievable figures for your material and thickness against your drawing before tooling is cut rather than promising a depth curve from a brochure.

Can one part carry both through-cut and kiss-cut features?

Yes, and it is a multi-level tool decision: a built-up assembly can be through-cut for its outline and kiss-cut through one layer of its stack, with a second kiss line registering a peelable tab. The confirm items are the layer that must survive, the tab geometry a operator or nozzle can actually lift, and whether the combined tool is worth it at your volume; at low volumes, two operations sometimes beat one expensive tool, and the quote should show that alternative side by side.

Deciding in one line

Let the assembly method choose the route, let the route choose the tool, and let the drawing review put numbers on both. The tolerance guide covers how those numbers should be written, and the product page lists what each route converts day to day.

Commercial and process terms on this page are the questions a converter has to answer, not a standing offer. Order quantities, lead times, tooling charges, sample terms, freight and payment structures are confirmed at quotation against your drawing, your material and your destination, and only figures already published elsewhere on this site are stated as commitments.