KQ PJ-4000 High Pressure Electric Dispenser offer one of the most precise non-contact glue application. It is commonly used in carton pasting, paper, corrugated cardboard, paperbag, food boxes, erected carton and rigid box industries.
Due to high pressure supplied by pump, PJ-4000 can be mounted at any angle, irrespective of gravity.
Feature:
Ultra High Speed suitable for use up to 300 m/min gluing
Non-contact application allows the gun to dispense the adhesive precisely
Manual flush button on the gun body allow convenient operation when cleaning
Common types of nozzles make its application with ease from small cardboard boxes to large corrugated cartons
Core Advantages:
Ultra-high-speed production adaptability
It supports linear speeds up to 300 m/min with a maximum switching frequency of 500Hz, perfectly matching ultra-high-speed flexo folder gluers and fully automatic carton forming lines. It delivers stable continuous dot and line gluing without broken glue trails, eliminating production bottlenecks for large-volume packaging factories.
Non-contact jetting & high positioning precision
Relying on 32-bar maximum working pressure, the valve realizes non-contact cold glue dispensing. It avoids friction scratches on printed surfaces and coated art paper, and ensures consistent glue placement even on uneven corrugated board surfaces, drastically cutting glue waste and defective cartons caused by offset gluing.
Omni-angle flexible mounting
Powered by high-pressure pump feeding, the valve operates independently of gravity. It can be installed horizontally, vertically or upside down to fit compact machine frames, narrow installation gaps and multi-side synchronous gluing layouts that traditional contact glue guns cannot accommodate.
User-friendly maintenance design
A built-in manual flush button on the valve body enables quick pipeline flushing without disassembly during daily shutdowns, effectively preventing cold glue solidification and nozzle clogging. Multiple interchangeable standard nozzles cover tiny small boxes to heavy double-wall corrugated cartons, one valve for diverse production tasks.
Wide adhesive compatibility & stable output
It handles cold glue with viscosity up to 5000mPas, matching standard water-based white latex used in paper packaging. The 12V low-voltage electric drive delivers steady pulse output, with uniform glue volume for every dot and line, no overflow or insufficient glue issues during long-hour continuous operation.
Premium rigid packaging: Cosmetic gift boxes, wine & tea cartons, window patch printed boxes, box-in-box gift packaging
Paper bag production: Kraft shopping bags, paper pouch side sealing and handle bonding
Equipment Matching Scenarios
Installed on flexo printer slotter folder gluers, standalone carton pasting machines, post-press folding equipment and automatic paper bag making lines. It performs intermittent dot gluing for tear tape pre-bonding, continuous line gluing for edge sealing, bottom lock gluing and local patch bonding for printed cartons.
Technical Parameters:
Product Name
High Pressure Electric Dispenser Valve
Model
PJ-4000
Maximum viscosity
5000mPas
Max Voltage
12 V
Glue Pattern
Line, Dot
Max Pressure
32 bar
Switching Frequency
500Hz
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Q1: What is the maximum production speed this valve can support?
A1: It fits line speeds up to 300 m/min with a switching frequency of 500Hz, suitable for ultra-high-speed full-automatic packaging production lines.
Q2: Can the PJ-4000 be mounted upside down or sideways?
A2: Yes. The high-pressure feeding system removes gravity limits, supporting all-angle installation to fit complex machine internal structures.
Q3: What glue types and viscosity range does it support?
A3: It works with water-based cold white latex for paper packaging, compatible with adhesives with viscosity under 5000mPas. Hot melt glue is not applicable.
Q4: What glue patterns can PJ-4000 produce?
A4: It supports two core modes: continuous line gluing and intermittent dot gluing, adjustable via supporting cold glue controller.
Q5: How to clean the valve to avoid blockage?
A5: Use the manual flush button on the valve body to flush pipelines with clean water after daily work. Complete disassembly and nozzle cleaning are required if the equipment will stay idle for over 24 hours.
Q6: Is it compatible with small folding boxes and large corrugated cartons?
A6: Yes. Interchangeable standard nozzles adjust glue output width and volume, covering mini food boxes to heavy-duty large corrugated shipping cases.
Q7: What pressure and voltage does the valve require?
A7: Max working pressure is 32 bar, rated voltage is 12V, matching KQ HB6 and HB9 cold glue pumps.
Q8: Can PJ-4000 work with KQ-PJ23, V24 and V28 cold glue systems?
A8: Fully compatible with all three models, expandable as additional glue guns for multi-channel synchronous gluing.
Q9: What are the main wearing spare parts of this valve?
A9: Consumables include nozzles, internal sealing rings and valve needles. We supply complete spare parts kits for quick replacement.
Q10: What benefits does non-contact dispensing bring to printed cartons?
A10: It eliminates contact scratches on ink and coated surfaces, keeping printed patterns intact and lowering the reject rate of high-end color packaging.
We are committed to excellence in everything we do and look forward to working with you!
QUESTIONS OR CONSULTING
Contact Information
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+86 181 0293 8927
+86 189 2556 0856
luna@keqi-auto.com
lc@keqi-auto.com
No.8 Jinniu Street, Taigongling, Dalingshan Town, Dongguan City, Guangdong Province,CHINA
