Company Overview

Since 2014, Marco Beijing has been deeply engaged in China’s adhesive dispensing market, establishing a leading position with piezoelectric jet valves. Addressing traditional valve limitations—such as limited viscosity compatibility, low precision, and complex adjustments—Marco introduced the self-adjusting, quick-release dual piezo valve and achieved breakthroughs in EHD ultra-fine dispensing technology. Following a “super-micro, ultra-fine” R&D strategy, Marco combines German technology with local innovation, continuously driving the upgrade of the precision dispensing industry.

1. Advantages of Self-Adjusting Piezo Valve Technology

1. Automatic plunger stroke adjustment reduces the impact of temperature on adhesive volume, ensuring consistent dispensing weight.
2. Eliminates spring vibration, achieving a high aspect ratio for precise deposition.

Adhesive Weight vs. Time Curve

Dot Height-to-Width Ratio for Different Dispensing Methods

2

EHD Jet Dispensing (Electrohydrodynamic Jet Dispensing)

EHD dispensing uses high electric fields to form ultra-fine droplets, achieving nano- and pico-scale precision. Compared to traditional pneumatic or screw-based dispensing, EHD offers high accuracy and ultra-low volume dispensing, making it ideal for microelectronics packaging, biochip fabrication, and flexible electronics.

Technical Advantages:

1. Ultra-thin, ultra-fine deposition
2. Line width < 0.20 mm

Self-Adjusting Dual Piezo Jet Valve

• High Versatility: Compatible with low, medium, and high viscosity adhesives for a wide range of applications.
• Voltage Linking: Precise voltage control adapts to different adhesive viscosities.
• Stroke Adjustment: Flexible plunger stroke eliminates splatter and bubbles, improving dispensing quality.
• High-Speed Dispensing: Up to 1000 Hz for low-viscosity adhesives, 500 Hz for high-viscosity adhesives.
• Easy Maintenance: Quick-release valve design enables efficient cleaning and upkeep.
• Long Lifespan: Piezo ceramics last over 1 billion cycles, ensuring stable performance.
• High Consistency: Dispensed dot variance < ±1%, guaranteeing batch stability.
• Excellent Height-to-Width Ratio: Adhesive thickness-to-width ratio > 70% for full, precise lines.
• Ultra-Low Volume Capability: Line width down to 0.24 mm, dot diameter 0.2 mm, volume as small as 1 nL.
• Automatic Temperature Compensation: Valve body adjusts plunger height with temperature changes to maintain consistent dispensing weight.

Product Specifications

• Model: STV / DDL / H
• Valve Dimensions (L×D×H): 125 × 62 × 220 mm
• Net Weight: 0.55 kg
• Dispensing Frequency: Up to 1000 Hz
• Minimum Dot/Line Width: 0.2 mm
• Minimum Dispense Volume: 1 nL
• Nozzle Diameter: 0.04 – 0.40 mm
• Plunger Diameter: 0.50, 0.8, 1.0, 1.5, 2.0 mm
• Nozzle & Plunger Material: Tungsten, Diamond, Ceramic
• Heating Temperature: Up to 150 °C
• Compatible Fluid Viscosity: 1 – 200,000 cP

Electrohydrodynamic (EHD) Jet Valve

• High Versatility: Compatible with low to medium viscosity adhesives for a wide range of applications.
• Adjustable Parameters: Electric field strength can be precisely tuned to match different adhesive viscosities.
• High-Speed Dispensing: Dispensing frequency up to 5000 Hz, supporting high-efficiency production.
• Ultra-Low Volume Precision: Line width as small as 0.01 mm, dot diameter 0.005 mm, achieving nanoscale precision.
• High Consistency: Dispensed dot variance ≤ ±1%, ensuring batch stability.
• Long Lifespan: Over 10 billion dispensing cycles for reliable long-term performance.
• Easy Maintenance: Nozzle-to-line width ratio of 1:10 minimizes clogging and simplifies daily maintenance.
• High Accuracy: Uniform, full dots with no splatter or stringing, ideal for precision processes.
• Wide Applications: Widely used in semiconductor packaging, flexible circuits, precision optics, and biomedical manufacturing.

Product Specifications – MEV/L01 EHD Jet Valve

• Model: MEV/L01
• Valve Dimensions (L×W×H): 130 × 45 × 210 mm
• Net Weight: 0.5 kg
• Dispensing Frequency: Up to 5000 Hz
• Minimum Dot/Line Width: 0.005 mm
• Minimum Dispense Volume: 1 pL
• Dot Consistency Deviation: ±1%
• Nozzle Diameter: 0.01 – 0.40 mm (optional)
• Nozzle Material: Ceramic, Glass, Metal
• Heating Temperature: Up to 150 °C
• Service Life: ≥ 10 billion cycles
• Compatible Fluid Viscosity: 1 – 5,000 cP

Low-Viscosity Jet Valve

• High Versatility: Lightweight preloaded spring design ensures stable dispensing, ideal for low to medium viscosity adhesives.
• Adjustable Stroke: Manual plunger stroke adjustment eliminates splatter and bubbles, enhancing dispensing quality.
• High-Speed Dispensing: Up to 1000 Hz under low-viscosity conditions, supporting high-efficiency production.
• Ultra-Low Volume Capability: Line width down to 0.24 mm, dot diameter 0.2 mm, dispensing volume as low as 1 nL.
• High Consistency: Dispensed dot variance ≤ ±1%, ensuring batch stability.
• Long Lifespan: Piezo ceramics last over 1 billion cycles for durable performance.
• Easy Maintenance: Unique quick-release valve design allows efficient daily cleaning and upkeep.
• Lightweight Design: Compact, lightweight structure reduces energy consumption and simplifies installation and integration.
• High Precision: Uniform, full dots with no splatter or stringing, ideal for precision manufacturing with strict quality requirements.

Product Specifications – STV/DSL/X Low-Viscosity Jet Valve

• Model: STV/DSL/X
• Valve Dimensions (L×W×H): 90 × 26 × 150 mm
• Net Weight: 0.3 kg
• Dispensing Frequency: Up to 1000 Hz
• Minimum Dot/Line Width: 0.2 mm
• Minimum Dispense Volume: 2–3 nL
• Nozzle Diameter: 0.04 – 0.40 mm
• Plunger Diameter: 0.5, 0.8, 1.0, 1.5, 2.0 mm
• Nozzle & Plunger Material: Steel, Diamond, Ceramic
• Compatible Fluid Viscosity: 10 – 10,000 cP

High-Viscosity Jet Valve

• High Versatility: Large, preloaded spring design is ideal for high-viscosity adhesives while still compatible with medium-viscosity applications.
• Adjustable Stroke: Manual plunger stroke adjustment ensures smooth dispensing of high-viscosity materials.
• High-Speed Dispensing: Maintains stable 1000 Hz dispensing frequency even under high-viscosity conditions, supporting production efficiency.
• Strong Power: High-force drive provides sufficient ejection energy, ensuring clear break points and stable dot formation.
• High Consistency: Dispensed dot variance ≤ ±1%, even in complex operating conditions.
• Long Lifespan: Piezo ceramics last over 1 billion cycles, ensuring long-term stable operation.
• Easy Maintenance: Unique valve seat design allows effortless cleaning and upkeep, even with high-viscosity adhesives.
• High Precision: Full, uniform dots with no stringing, even under high-force dispensing conditions.
• Wide Applications: Suitable for electronic packaging, automotive electronics, and other high-viscosity dispensing processes.

Product Specifications – STV/DSL/H High-Viscosity Jet Valve

• Model: STV/DSL/H
• Valve Dimensions (L×W×H): 110 × 62 × 220 mm
• Net Weight: 0.44 kg
• Dispensing Frequency: Up to 1000 Hz
• Minimum Dot/Line Width: 0.2 mm
• Minimum Dispense Volume: 2–3 nL
• Nozzle Diameter: 0.04 – 0.40 mm
• Plunger Diameter: 0.50, 0.8, 1.0, 1.5, 2.0 mm
• Nozzle & Plunger Material: Tungsten, Diamond, Ceramic
• Heating Temperature: Up to 150 °C
• Compatible Fluid Viscosity: 5,000 – 20,000 cP

Screw Valve

• High Versatility: Suitable for medium to high viscosity adhesives, especially pastes or filling materials.
• Stable Dispensing: Screw rotation drives continuous, uniform material extrusion, unaffected by air pressure fluctuations.
• Precise Control: Adjustable screw speed allows flexible control of dispensing volume, ensuring process consistency.
• Ultra-Low Volume Capability: Can dispense nano-scale volumes for high-precision applications.
• High Consistency: Dot or line variation ≤ ±1%, meeting strict process requirements.
• Wide Material Compatibility: Handles filling adhesives, conductive adhesives, structural adhesives, and more.
• Easy Maintenance: Screw assembly is easy to disassemble and clean, reducing downtime.
• Durable Design: High-strength screw structure resists wear, suitable for long-term continuous production.
• Wide Applications: Commonly used in electronic packaging, LED dispensing, automotive electronics, structural adhesive potting, and other fields.

Product Specifications – MSV/DSL/SL Screw Valve

• Model: MSV/DSL/SL
• Valve Dimensions (L×W×H): 53 × 40 × 190 mm
• Net Weight: 0.5 kg
• Operating Speed: Up to 400 RPM
• Minimum Dot/Line Width: 0.2 mm
• Minimum Dispense Volume: 2–3 nL
• Compatible Needle Types: Plastic needles, TT angled needles, high-precision needles
• Feed Air Pressure: 0.01 – 0.2 MPa
• Compatible Fluid Viscosity: 10,000 – 500,000 cP

Application Scenario

• Hot-melt adhesive dispensing on smartphone middle frames

Key Features

1. Minimum line width: 0.25 mm
2. Height-to-width ratio: >75%
3. Automatic dispensing volume adjustment based on dispensing path

Tuffy adhesive dispensing on FPC (Flexible Printed Circuits)

Key Features

1. Eliminates air bubbles in adhesive lines
2. Ensures uniform and consistent adhesive thickness
3. Target thickness: 30 μm

Red adhesive dispensing for SMT (Surface-Mount Technology) components

Key Features

1. Smooth, rounded adhesive dots
2. Uniform and consistent dot shape

Silver adhesive dispensing for semiconductor IC packaging

Key Features

1. Smooth, rounded adhesive dots
2. No splatter
3. Uniform dot diameter

Epoxy resin adhesive dispensing for chip inductors

Key Features

1. Smooth, hemispherical adhesive dots
2. Excellent uniformity and consistency
3. No splatter
4. Minimum dot diameter: <0.2 mm

UV adhesive dispensing on smartphone screen FPCs

Key Features

1. No air bubbles in adhesive lines
2. Uniform and consistent adhesive thickness
3. Height-to-width ratio: <10%

EHD dispensing of ink for light-blocking on lens edges

Key Features

1. Thickness: <10 μm
2. Uniform coating with excellent light-blocking performance

UV adhesive dispensing for motor assembly components

Key Features

1. No air bubbles in adhesive lines
2. Uniform and consistent bead shape
3. Stable adhesive weight

High-viscosity UV adhesive dispensing for battery sealing

Key Features

1. Uniform and consistent adhesive lines
2. No splatter
3. No air bubbles

Anaerobic adhesive dispensing for speaker magnets

Key Features

1. Uniform and consistent adhesive lines
2. No splatter

UV adhesive dispensing on Type-C DB connectors

Key Features

1. Uniform and consistent adhesive lines
2. No splatter

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If interested in exhibiting at Fac Tec China 2026, please contact

Ms. Julia Gu

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Email: [email protected] 

If interested in visiting Fac Tec China 2026, please contact

Mr. Walden Li

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