A cloth peg looks trivial, but a good one is a small piece of precision plastics engineering. Here is how it actually gets made.
1. The polymer
It starts with polypropylene granules — for quality pegs, virgin PP, sometimes with a UV stabiliser and colour masterbatch blended in. The choice of virgin versus recycled material at this first step largely decides how long the finished peg will last.
2. Injection moulding
The granules are melted and injected under pressure into a steel mould cavity shaped like the two halves of the peg. Seconds later the mould opens and the parts drop out. A multi-cavity mould makes dozens of peg halves per cycle, which is what makes pegs economical at scale. Consistent moulding temperature and pressure is what keeps every peg identical — the difference between a factory and a backyard operation.
3. The spring
Separately, stainless steel wire is coiled into the little torsion spring at the heart of the peg. Spring gauge and number of coils set the clamping force — this is where a peg is tuned for light or heavy duty. We supply these springs by the kilogram to the trade as well.
4. Assembly
Two moulded halves and a spring are brought together — the spring seats in the pivot and tensions the jaw. This can be manual or automated; either way each peg is checked that it opens and closes cleanly.
5. Quality and packing
Pegs are checked for grip, colour consistency and finish, then packed — into household packs, shelf-ready boxes or bulk export cartons. Good packing matters more than people think: it protects the pegs and, for retail, sells them.
We have run this process from our own Delhi factories since 1953, across brands like Misha Gold, Sinco Super and Sinco Elita. Read our story or explore export.
Why it matters to a buyer
When you understand the process, the quality questions become obvious: Is it virgin PP? Is the spring stainless? Is the moulding consistent? A manufacturer who controls all five steps in-house — rather than buying in and rebranding — can answer all three.
Frequently asked questions
What material are plastic cloth pegs made from?
Polypropylene (PP) — ideally virgin PP with a UV stabiliser — moulded into the body, with a stainless steel torsion spring at the pivot.
How are cloth pegs manufactured?
Polypropylene granules are injection-moulded into peg halves, stainless steel springs are coiled separately, the parts are assembled and tensioned, then quality-checked and packed.
Are Sinco cloth pegs made in-house?
Yes — Sinco Industries runs in-house injection moulding across two Delhi factories and has manufactured cloth pegs since 1953.