21inch vacuum laminating machine

The 9TU-D030 is a single-station OCA vacuum laminating machine engineered for mid-to-large industrial display bonding. Its 450 mm × 300 mm bonding cavity accommodates panel sizes up to 21 inches — a s...

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The 9TU-D030 is a single-station OCA vacuum laminating machine engineered for mid-to-large industrial display bonding.

Inside the sealed vacuum cylinder, the inner membrane descends under controlled pneumatic pressure to bring the two display layers into complete, uniform contact. The -100 kPa vacuum limit removes virtually all air from the interface before bonding begins, producing a fully laminated stack with no air gap, no internal reflections, and no residual bubbles — the standard required for industrial, automotive, and HMI display assemblies.

Compared to the 16-inch 9TU-D029 model, the 9TU-D030 adds dual pressure gauges, a back-pressure regulating valve, an explicit vacuum-level specification (-100 kPa), maximum temperature rating (100 °C), and bonding height clearance (30 mm) — making it the preferred choice for thicker display stacks and assemblies with integrated frames or brackets.

Key Features

100 kPa Deep Vacuum — Maximum Air Removal The vacuum chamber achieves -100 kPa, eliminating virtually all air between the display layers before the bonding press begins. This deep vacuum prevents double-layer reflections and blocks dust or moisture from entering the laminated stack — a baseline requirement for any optical bonding application in display manufacturing.

100 °C Constant-Temperature Top Heating The built-in top-heating system reaches up to 100 °C with PLC-controlled temperature regulation. Uniform heat distribution across the full 450 × 300 mm bonding surface ensures consistent OCA adhesive activation, reducing the risk of cold spots, uneven curing, or partial delamination.

Dual Pressure Gauges — Enhanced Process Monitoring Unlike single-gauge configurations, the 9TU-D030 equips both a positive-pressure and a back-pressure SMC digital gauge. Operators monitor both the bonding press pressure and the release-pressure phase independently, providing a backup verification channel and finer control over the full press-and-release cycle.

30 mm Bonding Height Clearance The lower mold cavity accommodates assemblies up to 30 mm in height, supporting display stacks with full backlight modules, structural frames, or integrated mounting brackets — common in industrial HMI panels and in-vehicle display modules.

PLC Control System — Stable, Repeatable Production The PLC-based control architecture ensures cycle-to-cycle process repeatability. Parameter memory stores multiple product recipes, allowing rapid changeover between display sizes or adhesive types without manual re-calibration — directly enabling mixed-model production.

Bilingual 4.3-Inch Touchscreen Interface Chinese/English dual-language interface. All process parameters — vacuum time, press time, pressure setpoint, heating temperature, decompression duration — are visible and adjustable on-screen, simplifying operator training and reducing setup errors.

10–15 Second Adjustable Cycle Time Configurable bonding cycle of 10 to 15 seconds per piece sustains production line throughput without creating a process bottleneck, even at the larger 21-inch format.

Dual-Button Safety Start + Emergency Stop Anti-accidental-start dual-button triggering and a dedicated emergency stop button meet standard industrial machinery safety requirements.

Why Choose Us

This machine is suitable for the following industrial display lamination workflows:

Bonding Type Stack Combination Adhesive
Glass-to-Glass (G+G) Cover glass + Glass sensor / touch panel OCA film or OCR liquid
Glass-to-Film (G+F) Cover glass + Film-based touch sensor OCA film
Touch panel + Display module TP + LCD / LCM module OCA film
Polarizer lamination Polarizer + LCD panel OCA or dry process
Industrial HMI panel assembly Cover lens + capacitive TP OCA / SCA
In-vehicle display modules Cover glass + display, up to 21″ OCA / SCA
Large-format display bonding Up to 450×300 mm panel stacks OCA / SCA / OCR
Supported panel geometries: Standard rectangular displays. Panels with irregular cutouts or curved surfaces require dedicated tooling — please consult our engineering team.

Three-Station Lamination Process Context
For display manufacturers running a complete OCA full-lamination line, this machine operates as the vacuum bonding station — the second of three core process steps:

Step 1 — LAMINATING / FILM APPLICATION
Apply OCA film or protective film to the cover glass surface.
(Laminating machine / film applicator)

Step 2 — VACUUM BONDING ← THIS MACHINE (9TU-D030)
Bond the cover glass and display/touch panel assembly inside a
vacuum chamber at -100 kPa, under controlled pressure and temperature.

Step 3 — AUTOCLAVE / DEBUBBLING
Eliminate residual micro-bubbles in a high-pressure autoclave to
achieve final optical clarity and bond strength.
(Autoclave debubbling machine)

All three stations are available from our product line and can be configured as a matched lamination system for your production volume and panel size range.

Model Comparison — 9TU-D030 (21″) vs. 9TU-D029 (16″)
Parameter 9TU-D029 (16-inch) 9TU-D030 (21-inch)
Max. Fitting Size 340×250 mm 450×300 mm
Machine Weight 60 kg 100 kg
Dimensions (L×W×H) 455×540×495 mm 760×580×600 mm
Vacuum Level Not specified in manual -100 kPa (limit)
Pressure Gauges Single (SMC) Dual (positive + back pressure)
Max. Temperature Not specified in manual 100 °C
Bonding Height Clearance Not specified in manual 30 mm
Air Source Max. 0.5–0.6 MPa 0.5–0.6 MPa (max. 0.7 MPa)
Cycle Time 10–15 s/pcs 10–15 s/pcs (adjustable)
Power 1,500 W 1,500 W
Use this table to help customers choose the right model and prevent defaulting to the smaller 16-inch machine when 21-inch capacity is actually required.

Product Documents

21inch vacuum laminating machine user manual

Download Docx

Key Features

Product Details

FAQ

Q1. What is the maximum panel size this machine can handle?

The maximum fitting area is 450 mm × 300 mm, supporting display assemblies up to 21 inches. For panels larger than 21 inches, please enquire about our extended-format laminating equipment.

Q2. What adhesive types are supported — OCA film or liquid OCR?

The 9TU-D030 is optimised for OCA (Optical Clear Adhesive) film-based lamination, pre-applied to one substrate before loading. For liquid OCR (Optical Clear Resin) dispensing and bonding workflows, contact us to confirm process and tooling compatibility for your specific application.

Q3. What bonding combinations does it support?

The machine supports glass-to-glass (G+G), glass-to-film-sensor (G+F), cover glass-to-LCD module, touch panel-to-display module, and polarizer lamination. It is suited for industrial display panels, HMI screens, in-vehicle display modules, large-format touch panel assemblies, and capacitive TP stacks up to 21 inches.

Q4. What vacuum level does the machine achieve?

The vacuum chamber reaches -100 kPa (limit), effectively eliminating virtually all entrapped air between the display layers before bonding. This deep vacuum prevents double-layer reflections and blocks moisture and dust from entering the laminated stack.

Q5. What cycle time should I expect in production?

The bonding cycle is adjustable between 10 and 15 seconds per piece under standard operating conditions. Actual throughput depends on panel loading/unloading time and your upstream/downstream station pacing.

Q6. Do I need a separate debubbling (autoclave) machine after bonding?

Yes, for optically demanding applications. Residual micro-bubbles introduced during bonding must be removed in a subsequent high-pressure autoclave / debubbling step to achieve final bond clarity and mechanical strength. We supply matched autoclave equipment — please enquire about a combined line quotation.

Q7. What is the maximum bonding temperature?

The top-heating system reaches a maximum of 100 °C with PLC-controlled temperature regulation. Consistent temperature across the full 450 × 300 mm bonding area ensures uniform OCA adhesive activation and reduces the risk of partial cure or cold spots.

Q8. What is the bonding height clearance?

The lower mold cavity provides 30 mm of clearance, accommodating display assemblies with backlight modules, structural frames, or integrated mounting brackets — typical in industrial HMI panels and in-vehicle display modules.

Q9. What air supply does the machine require?

A dry compressed air supply at 0.5 – 0.6 MPa (maximum 0.7 MPa) is required. The air compressor must deliver at least 8 bar. Ensure the supply delivers dry gas — moisture in the line degrades seals and reduces vacuum depth.

Q10. Why does the 9TU-D030 have dual pressure gauges?

The dual SMC digital gauges monitor positive (bonding) pressure and back pressure independently. This provides a backup verification channel, finer control over the full press-and-release cycle, and earlier detection of pressure deviations that could compromise bond quality — a meaningful process quality improvement over single-gauge designs.

Q11. What are the electrical and installation requirements?

Power: AC 220 V, 50/60 Hz, 1,500 W Air supply: 0.5 – 0.7 MPa dry compressed air; compressor min. 8 bar Footprint: 760 × 580 mm; height 600 mm Weight: 100 kg — requires a sturdy industrial workbench or dedicated machine stand No special foundation or machine room required

Q12. Is OEM or ODM customisation available?

Yes. We accept OEM orders (custom branding/labelling) and ODM projects (specification adjustments including bonding area size, heating configuration, vacuum system capacity, and inline conveyor integration). Provide your technical requirements for a formal feasibility assessment.