Free Fall Detectors
Detectronic metal detection
Metal detection in the drop pipe, without a conveyor
Fitted into the drop pipe — above a bagging machine, between sifter and silo, or at intake. When metal is detected, a high-speed pneumatic valve separates the contaminated portion without interrupting the flow.
Track Int’l Trade specifies Detectronic free-fall systems for Egyptian plants making powders, granules, grain, sugar, spices and plastic granulate.
In the drop pipe
No belt to break into the line. Detector and reject sit in the vertical fall, with very little floor space around the machine.
Fractions of a second
Product is moving fast at the coil. The valve sits close to the detector so it can close past the metal before the stream has gone.
All three metals
Ferrous, non-ferrous and stainless in one pass — the fragments that actually turn up in powder lines are usually stainless.
Reject that does not clog
Hygienic valve with no critical edges. Y-type for flake material; a powder design that will not hold product.
Two builds
FF/JS compact
Short reject system for limited headroom between the sifter or hopper and the packing machine. Same detection, less vertical space.
- Typical use: above a bagging machine
- Ø60 to Ø320
- FDA-approved reject lining for food contact
FF/BD bulk
Heavier-duty build for continuous streams — grain, flour, sugar, feed — where throughput is high and the material is abrasive.
- Typical use: intake, transfer and silo feed
- Continuous flow without stopping the line
- Reject volume sized to the flow rate, so the container matches the product value
Specifications
| Models | FF/JS compact with short reject system; FF/BD bulk detector for grains and powders |
|---|---|
| Sizes | Ø60 to Ø320 |
| Frequency | 30–300 kHz depending on platform and product |
| Detection | Magnetic and non-magnetic metal in free-falling bulk product |
| Reject valve | High-speed pneumatic. Hygienic design with no critical edges |
| Reject lining | FDA-approved plastic for food contact |
| Reject types | Y-type for flake material · hygienic design for powders |
| Applications | Powders, granules, grain, sugar, spices, dried fruit, nuts, plastic granulate |
| Installation | Into the drop pipe — above bagging, after sifter, at intake — specified to the arrangement |
Gallery
Free-fall heads and drop pipes
Track Int’l Trade · Detectronic
