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Needle detector

Also called: needle detector machine, metal detector machine for garments, garments metal detector, hand needle detector

Step 7 of 7: Pressing, checking and packing

A conveyor through a detection tunnel that stops the belt when it senses a broken needle or other metal in a garment.

Availability subject to feasibility check

Prices depend on the specification and the supplier. Request a quote.

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Example of a Needle detector
Example of this machine type, not a specific model we supply.Photo: dean blackburn, CC BY 2.0, commons.wikimedia.org, edited

Needle detector: how it works

  1. Finished garments are laid one by one on a conveyor belt.
  2. The belt carries each garment through a detection head that keeps up a magnetic field.
  3. A piece of broken needle, a pin or a staple disturbs the field, and the sensors pick this up.
  4. The machine sounds an alarm and stops or reverses the belt, so the garment can be taken out, the metal found and the case recorded.
  5. Garments that pass go straight on to packing.

Main types

Conveyor needle detector
A belt runs through a detection tunnel. The standard machine for checking every garment before packing.
Double-head needle detector
Sensing heads above and below the belt, for thick or folded items.
Hand-held needle detector
A small detector passed over the garment by hand, to find the exact spot or to make spot checks.

Where it fits in the process

It is the last check of garment finishing, after pressing and folding and before the cartons are closed. Garment buyers commonly require it.

Needle detector price in Bangladesh: how to get a quote

We do not publish prices. The price of a machine depends on its specification, the supplier and the shipping terms, and it changes with the market. Tell us the points below: we check feasibility and the import rules, then send you a quotation.

What to tell us

  • The products you check: light garments, jackets, sweaters, towels or others.
  • The largest item, folded as it passes: its width and height.
  • How many pieces you check in a day.
  • The sensitivity your buyers ask for.
  • Conveyor machine, hand-held detector or both.
  • New or reconditioned.
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Common questions

How does a needle detector machine work?

It sets up a magnetic field across the belt. Iron or steel passing through, even a small tip of a needle, changes that field; the machine senses the change, gives an alarm and stops the belt.

Is a needle detector the same as a metal detector machine?

In garment factories both names are used for this machine. Strictly, a needle detector senses iron and steel, which is what needles are made of. Metal detectors for food or medicine also sense other metals and are a different machine.

What is a test card, and why is the machine checked with it?

A test card holds a small steel piece of a known size. It is passed through the machine at set times to prove that the machine still detects metal of that size, and the result is written in a log.

What is the price of a needle detector machine in Bangladesh?

We do not publish prices. The price depends on conveyor or hand-held, single or double head, the size of the tunnel and whether the machine is new or reconditioned. Send us the points listed above and we will quote.

More machines in this step: Pressing, checking and packing

  • Steam press

    A steam iron on a vacuum table, or a steam press, that takes the creases out of finished garments before folding.

    Availability subject to feasibility check

    Request this machine