Ruian Koten Machinery Co., Ltd. is one of the leading manufacturers and suppliers of automatic box corner tapping machine in China. With abundant experience, we ware committed to providing high quality machinery made in China with competitive price. If you're going to buy CE approved automatic box corner tapping machine, welcome to get quotation from our factory.
Products Description
QTJ‑420 and QTJ‑500 automatic box corner tapping machines are specialized equipment for rigid‑box inner‑box corner taping. It automatically applies transparent tape or kraft paper tape to reinforce four corners of rigid inner boxes. This machine can work independently, or be combined with conveyors and automatic positioning machines to build a fully‑automatic corner‑tapping production line. It completes tape feeding, cutting and four‑corner pasting in one continuous cycle for stable, high‑efficiency corner reinforcement.



Products Feature
- PLC control with user‑friendly HMI touch‑screen Intuitive human‑machine interface for simple parameter setup and status monitoring.
- Automatic cardboard feeding with high stacking capacity Auto‑feeding system supports maximum stacking height up to 1000 mm. Fine‑feeding table structure improves overall working speed.
- Fast‑change mould design Mould replacement is quick and convenient, enabling flexible production for multiple box sizes.
- Full‑automatic hot‑melt tape processing Automatically conveys, cuts and sticks hot‑melt adhesive tape to four box corners, finishing corner tapping in one single process.
- Tape‑out alarm function Built‑in sensor triggers automatic alarm when tape runs out, reminding operators to replenish materials and avoid defective products.
- Easy‑line‑integration capability Compatible with conveyor belts and upstream automatic positioning machines to form complete automated production lines.

Main Paramater
|
Model |
QTJ420 |
QTJ500 |
|
Max. Box Size |
350x450x120 mm |
400x500x150 mm |
|
Min. Box Size |
60x60x10 mm |
50x100x15 mm |
|
Speed |
0-50 pcs/min |
0-35 pcs/min |
|
Power |
2.5 KW |
2.4 KW |
|
Power Supply |
220 V/Hz |
380 V/Hz |
|
Air Consumption |
8L/min 0.8Mpa |
0.2L/min 0.4Mpa |
|
Weight |
1500 KG |
1550 KG |
|
Machine Dimension |
2350x1450x2200 mm |
2350x2500x2300 mm |
Application

Specially designed for corner‑reinforcement of rigid inner‑boxes with transparent tape or kraft paper tape:
‑ Inner‑box corner tapping for jewelry gift boxes
‑ Cosmetic & perfume rigid‑box inner‑shell reinforcement
‑ Electronics‑packaging inner‑box corner pasting
‑ Various premium‑grade rigid‑box inner‑corner consolidation
‑ Works with automated rigid‑box production lines for mass‑volume manufacturing
Company Proflie
Installation
The above price not contain the installation and training charge, if customers request our engineer for this service, customers should pay the flight tickets, hotel, food and daily wage.
Guarantee
One year, within one year, the damaged spares by nature can be changed for free.

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