What machines do I need for a nylon zipper production line?

A complete nylon (coil) zipper line needs: a tape weaving loom, a nylon teeth coiling machine that winds monofilament into the coil teeth and fixes them to the tape, a dyeing machine, a long-chain winding machine, then finishing machines — gapping, slider/head mounting, top-stop and bottom-stop machines, and a cutting machine — plus quality testing equipment. The line is modular, so you can start with the core machines and add capacity later.

How are nylon zipper teeth made?

Nylon zipper teeth are not injection-moulded. A coiling machine winds a single nylon monofilament into a continuous coil that forms the teeth; a separate sewing machine then stitches that coil onto the woven tape. This is why nylon zippers are also called coil zippers. Resin (plastic) zippers use injection moulding instead, and metal zippers are stamped from wire — each needs different machinery.

What is a long-chain (long-chain) nylon zipper?

Long-chain is the continuous nylon zipper roll produced before it is cut into finished zippers. The tape is woven, the coil teeth are added and dyed to colour, and the result is wound into long-chain rolls. Finishing machines then add gaps, sliders and stops, and cut the chain to length. Many factories also sell long-chain rolls in bulk to other workshops.

Can one supplier provide the whole nylon zipper line?

Yes. As a factory-direct machinery maker, Jeso (Primo Zipper Group) supplies the complete nylon zipper line — weaving, coiling, dyeing, winding, gapping, slider mounting, stops, cutting and testing — as well as moulds, sliders and raw materials, with installation, operator training and lifelong technical support. Buying the line from one source keeps the machines matched and the after-sales single-point.

Complete Nylon Zipper Production Line: Machines & Process

Nylon (coil) zippers are the most widely produced zipper type in the world — light, flexible and economical, used on apparel, bags, luggage and home textiles. If you are setting up or expanding a zipper factory, here is exactly which machines make up a complete nylon zipper line and what each one does, explained by Jeso (Primo Zipper Group), a factory with 40+ years building zipper machinery.

The short version: how a nylon zipper line flows

A nylon zipper is built in two stages. First the long-chain is produced — a continuous coil-zipper roll. Then finishing machines turn that roll into finished zippers with sliders and stops, cut to length. The line is modular: you can begin with the core machines and add downstream capacity as orders grow.

Stage	Step	What it does
Long-chain	1. Tape weaving	A weaving loom produces the woven zipper tape that the teeth attach to.
	2. Teeth coiling	A coiling machine winds a single nylon monofilament into the continuous coil that forms the teeth.
	3. Sewing	A separate sewing machine stitches the coiled teeth onto the woven tape — coiling and sewing are two different machines.
	4. Dyeing	A roller dyeing machine dyes the chain to the required colour.
Finishing	5. Gapping	A gapping machine removes teeth at set intervals to create the spaces where sliders and stops go.
	6. Slider / head mounting	A head-mounting machine fits the complete slider onto the chain.
	7. Top & bottom stops	Stop machines fix the top stops and bottom stop so the slider cannot run off.
	8. Cutting	A cutting machine cuts the chain into finished zippers of the ordered length.
	9. Testing	Pull, reciprocating and other tests check strength and smoothness before packing.

The core machines, one by one

1. Tape weaving

Everything starts with the tape. A needle loom weaves the polyester tape that carries the teeth. Tape width, density and the cord edge are matched to the zipper size (for example #3, #5, #8, #10). Good, consistent tape is the foundation of a smooth zipper.

2. Nylon teeth coiling — the heart of the line

This is what makes a "coil" zipper a coil zipper. The coiling machine takes a single nylon monofilament, winds it into a continuous coil that forms the interlocking teeth, and fixes that coil onto the tape. Unlike resin zippers (whose teeth are injection-moulded) or metal zippers (whose teeth are stamped from wire), nylon teeth are formed by coiling — which is why nylon zippers are light and flexible.

3. Roller dyeing

The chain is dyed to colour on a roller dyeing machine. Producing the long-chain in standard colours and dyeing to order is what lets a factory offer hundreds of colour options without holding huge finished-goods stock.

4. Long-chain winding

The finished chain is wound into measured rolls for storage, bulk sale or feeding the finishing line. Many factories sell long-chain rolls in bulk to garment workshops that do their own finishing.

The finishing machines

5. Gapping

A gapping machine removes the coil teeth at precise intervals, creating the "gaps" that define where each finished zipper begins and ends and where the slider and stops will sit. Accurate gapping is essential — it sets the finished length and the alignment of every later step.

6. Slider / head mounting

A head-mounting machine fits the complete slider (the whole head, not just the pull) onto the chain. Different machines suit different pulls: an in-line feeder handles common slider pulls, while a side-feed machine handles fancy or irregularly shaped pulls.

7. Top and bottom stops

Stops keep the slider on the zipper. For closed-end nylon zippers, a bottom-stop machine fixes the bottom stop, and a top-stop machine fixes the top stops. Top stops can be applied with aluminium wire, or as transparent (heat-fused nylon) stops for a near-invisible finish. The right stop type depends on the end product and the look you want.

8. Cutting

A cutting machine cuts the chain into finished zippers at the gapped points. Standard cutters serve most orders; ultrasonic cutting adds extra edge precision and seals the cut for higher-spec work.

9. Quality testing

Before packing, finished zippers are checked on testing equipment — pull strength, reciprocating (open/close) endurance and slider smoothness — so defects are caught in the factory, not by your customer.

How big a line do you actually need?

You do not have to buy everything at once. A practical way to start:

Buy long-chain, finish in-house: skip weaving/coiling/dyeing at first, buy long-chain rolls, and invest in gapping, slider mounting, stops and cutting. Lowest entry cost, fastest to running.
Full nylon line: add weaving, coiling and dyeing to control quality, colour and cost end to end — the route for a real zipper factory.
Multi-material factory: add separate metal and resin lines later; the finishing machines and know-how carry over.

Because the machines must work together, buying the line from one factory-direct supplier keeps everything matched and gives you a single point for installation, operator training and spare parts.

Planning a nylon zipper line?

Jeso (Primo Zipper Group) is a 40-year factory-direct maker of complete nylon, metal and resin zipper lines, moulds, sliders and testing equipment — with installation, operator training and lifelong support. Tell us your target output and zipper sizes and we will spec the right machine list for you.

Jeso is the zipper-machinery brand of Primo Zipper Group, a Wenzhou, China factory established 1984. Process steps are described in general terms; exact machine models and sequence are configured to each customer's products and output.