PJC‑800 Glue Gun Detector: Key Advantages for Folder‑Gluer Cold Glue Inspection

Traditional glue sensors often struggle with metallic‑coated, foil‑finished and high‑gloss cartons, producing frequent false triggers that disrupt packaging production. The PJC‑800 Glue Gun Detector solves this pain point with infrared‑reflection analysis, delivering reliable inline cold‑glue monitoring directly after glue guns on folder‑gluer lines.

Its standout advantage is stable performance on reflective substrates. Even when glue colour blends closely with carton backgrounds, infrared light differentiates adhesive from printed surfaces, avoiding mis‑detections common for RF‑based glue sensors. It reliably inspects both continuous line glue and intermittent dot‑glue patterns, catching missing glue, broken glue segments and offset glue tracks at source, before defective cartons move further downstream.

High‑precision detection supports fine glue traces, with 1×1 mm resolution and minimum detectable glue width & length of 2 mm. It tolerates ±4 mm sensing‑distance deviation, carton vibration below 5 mm and maximum 20‑degree product incline, fitting real‑world unstable conveying conditions, for production speeds up to 320 m/min.

Extremely compact dimensions (L62 × W25 × H89 mm) enable easy installation near glue‑gun nozzles. It fits both new folder gluers and retrofitted old‑model machines without heavy mechanical modification. Standard IO‑signal output seamlessly links with piston kickers, rotary ejectors and alarm lamps to build closed‑loop quality control workflows.

Compared with multi‑functional vision systems, PJC‑800 is a cost‑optimised dedicated glue sensor. It focuses purely on cold‑glue trace inspection, cutting hardware investment for converters that only require adhesive monitoring for luxury cosmetic, gift‑box and pharmaceutical cartons. Built for 24‑hour continuous operation, it reduces manual sampling, rework waste and customer complaints caused by poor bonding, securing consistent output quality for export‑grade packaging.