Lockstitch GT-280


Needle Detector Machine (Design for Cartons)

KF-7500ZX get detecting width: 700mm; detecting height: 380mm; max: 50kg. Mostly used to detect the whole case after packing to find out the blade, scissors, such a little and big metal items left inside. Adopt the most advanced magnetic detecting technology, use the latest computer control system, through sampling system to filter jamming signal, make the machine work more stable. The machine adopts magnetic circuit symmetry detection structure, reduce the magnetic radiation. In line with the green environmental protection concept, magnetic circuit in detection channel get closed-loop, improve the detection precision and the ability to resist strong magnetic interference, reduce misjudgment rate, to adept to the harsh working environment.

  • Designed with High power transmission shock anti-interference double row of multiplex electromagnetic sensors, mostly used in shoemaking lines to get on-line detection.
  • Full computer statistics, account conforming product, nono-conforming and total amount for a working period.
  • Set with thick and thin material conversion, can respectively to test the thick or thin material.
  • Equipped with protection device, the conveyor belt will never wandering.
  • Full computer automatic funcion, automatic alram, automatic stop/start, a button to run the machine.
  • Green environmental protection design concept, get automatic shutdown function for idle running.
  • Get indicator for work environment disturbances and indicator for the position of ferrous fragment.
  • Strong magnetic interference resistance ability, high reliability, to adapt to the environment high sensitivity, etc.


  • Detecting mode: Electro-magnetic induction
  • Detecting ability: Feϕ3.5mm
  • Detecting adjustment: Step-less adjustment
  • Detecting Width: 700mm (Standard type)
  • Detecting Height: 380mm
  • Alarm mode: Beep
  • Belt speed: (approx.) 30m/min
  • Power supply: Single-phase 220V, 50Hz
  • Rated Output: (approx.) 260W
  • Dimension: 1700 x 1150 x 1250
  • Weight: (approx.) 280kg