Specifications
Brand Name :
Mingseal
Model Number :
KPS2000-R
Certification :
ISO, ROHS
Place of Origin :
China
MOQ :
1
Price :
$4500-$10000 / pcs
Payment Terms :
L/C,D/P,T/T,Western Union,D/A
Supply Ability :
200sets per month
Delivery Time :
7-60days
Packaging Details :
Carton/Wooden box
Product :
KPS2000-R dispense jetting valve​
Applicable viscosity range :
1~500,000 cps
Valve jetting Frequency :
1~1200 HZ
Valve size :
125.5*75*20mm(with flow channel)
Valve weight :
440g (flow channel included in)
Controller size :
232×170×165 mm
Weight of controller :
3.55 KG
Description

High performance Piezo Jet Valve in Speaker Hot Melt Adhesive Dispensing applications

Piezo jet valves are increasingly used in the precision dispensing of hot melt adhesives in speaker manufacturing, particularly for compact and high-performance devices such as smartphone speakers, TWS (true wireless stereo) earbuds, and smart speaker modules. These valves offer non-contact, high-speed jetting capabilities that are ideal for applying micro-doses of high-viscosity hot melt adhesives to small, complex components with tight tolerances.

In speaker assembly, piezo jet valves are commonly used to bond the diaphragm to the frame, seal acoustic chambers, fix magnetic components, or secure dust caps and covers. The non-contact dispensing method avoids damaging fragile structures like the diaphragm or coil, while ensuring uniform glue distribution and avoiding overflow, which is critical for maintaining acoustic performance and visual cleanliness.

One of the key advantages of piezo valves in hot melt adhesive applications is their ability to maintain consistent dot size and volume, even at high viscosities (20,000–50,000 mPa·s) and elevated temperatures (typically 160–180°C). With integrated heating modules for both the valve body and the adhesive reservoir, systems like Mingseal’s hot melt piezo jet valve KPS2000-R ensure thermal stability and long open time, preventing premature solidification and maximizing production uptime.

Core Advantages

  • High viscosity hot melt adhesive compatibility
  • Supports high temperature operation
  • High jetting accuracy
  • Module design, easy for operation

Main appliaction

  • Bonding of the diaphragm and the bracket

  • Sealing and waterproofing of the vibration system

  • Bonding of the cover or magnetic circuit

Technical parameters

KPS2000-R adhesive dispensing valves​
Minimum glue spraying amount 0.5nl(CPK>1.33)
Viscosity of glue Medium or high viscosity(1-500,000mpas)
Max jetting frequency 1200Hz
Corrosion resistance All aqueous media, organic solvents, weak acids and weak bases
Size

125.5×40×20mm(No runner assembly included)

125.5×75×20mm(Includes runner assembly)

Weight 430g(With fluid box, no cables)
KPC2000 controller
AC power input AC 220V±20%
0.01ms~6000.00ms,0.01ms
Jetting frequency 1~1200HZ
Settings display TFT color screen
10 set
Reserved interface Supports RS232/RS485
Weight 3.55KG
Size 232×170×165 mm
Power 275W


FAQ

Q1: Can the piezo jet valve handle high-viscosity hot melt adhesives used in speaker assembly?
A1: Yes. Piezo jet valves are engineered to dispense hot melt adhesives with viscosities up to 50,000 mPa·s. Equipped with heating modules for the valve and tank, they maintain consistent temperature and flow, ensuring stable jetting performance during speaker diaphragm or frame bonding.

Q2: How does the valve prevent overflow or glue defects on small speaker components?
A2: With non-contact, micro-precision dispensing, piezo valves ensure uniform dot size and placement even in narrow bonding areas. This minimizes glue overflow and improves cosmetic appearance and acoustic reliability in TWS and smartphone speaker modules.

Q3: How is nozzle condition maintained during continuous high-speed operation?
A3: The valve includes heating and sealing components to prevent clogging and carbonization. Routine cleaning is simple, and the design minimizes nozzle wear, ensuring stable performance for long production runs.

About Mingseal

Founded in 2008, Changzhou Mingseal Robot Technology Co., Ltd. is a technology-driven manufacturer of high-end equipment, specializing in connection, assembly, inspection systems, and key components for advanced semiconductor packaging and precision electronics. Our solutions are widely adopted by leading customers in sectors such as semiconductor packaging, consumer electronics, and automotive electronics. With a strong presence across Asia and the Americas, we deliver reliable support and innovation globally.


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Speaker Piezoelectric Valve Hot Melt Adhesive Dispensing Pulse Jet Valve

Ask Latest Price
Brand Name :
Mingseal
Model Number :
KPS2000-R
Certification :
ISO, ROHS
Place of Origin :
China
MOQ :
1
Price :
$4500-$10000 / pcs
Contact Supplier
Speaker Piezoelectric Valve Hot Melt Adhesive Dispensing Pulse Jet Valve
Speaker Piezoelectric Valve Hot Melt Adhesive Dispensing Pulse Jet Valve
Speaker Piezoelectric Valve Hot Melt Adhesive Dispensing Pulse Jet Valve
Speaker Piezoelectric Valve Hot Melt Adhesive Dispensing Pulse Jet Valve

Changzhou Mingseal Robot Technology Co., Ltd.

Verified Supplier
1 Years
jiangsu, changzhou
Since 2008
Business Type :
Manufacturer
Total Annual :
10000000-50000000
Employee Number :
500~600
Certification Level :
Verified Supplier
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