LED Exposure Machine with Dryer
The JST-EX90120D is a professional screen printing exposure machine with drying cabinet that integrates
advanced LED UV technology and thermal drying system. This uv led exposure machine with drying
delivers superior exposure consistency and features an energy-efficient mercury-free light source.
The built-in drying cabinet ensures rapid screen processing with professional results. Ideal for
high-volume production environments requiring reliable plate making exposure machine with
drying cabinet performance.
Products Description
| Brand | JUSTE |
| Model | JST-EX90120D |
| Machine dimension | 1200×900×900mm |
| Max exposure size | 700*900mm |
| Exposure Time | 35-55 Second |
| Machine weight | 150KG |
| Voltage | 220V/50HZ |
| Light Source | LED Light 395nm |
| Power | 0.8KW |
| Dryer Power | 3KW |
| Total Power | 4KW |
| Evenness of Exposure | Above 90% |
| Line wide&space | 3-4μm |
| Vacuum speed | 0-140kpa |
| Light source wave length | 350-450nm range |
| Exposure time tolerance | Less than 0.5s |
| Working noise | Less than 70dB |
| Light tube cooling | Fan cooling cabinet system |
| Motor | TECO Electric of TW |
| Vacuum pump | Oil-free double circuit pump of TW |
Working Principle Steps:
Step 1: Coating the Screen with Emulsion
In a dim environment (or under yellow light, avoiding bright light), apply the photosensitive emulsion to
the screen mesh.
Use a scoop coater to evenly spread the photosensitive emulsion onto one side of the screen mesh,
creating a smooth, flat blue coating.
Let it sit for a few minutes to allow the emulsion to air dry naturally. Now, this screen plate is ready.
It’s like a wooden board coated with a “carvable material,” waiting to have a pattern etched into it.
Step 2: Alignment and Contact
Place your prepared film positive (with the pattern facing up) in the center of the glass plate of the exposure unit.
Then, take your prepared screen plate and position it face down (the side with the blue emulsion) onto the film.
Important: The patterned side of the film must be in tight contact with the blue emulsion layer of the screen.
There must be no gap between them.
Step 3: Vacuum Compression
Close the rubber blanket lid of the exposure unit.
Activate the vacuum pump button. The machine will make a humming sound, removing all the air between
the glass and the rubber blanket.
You will see the screen pressed tightly against the glass by the pressure, forcing out any air between the film
and the emulsion layer. This step ensures pattern sharpness and prevents UV light from leaking through any gaps.
Step 4: Exposure
Press the exposure button. The powerful UV lamp inside the unit will light up.
UV light passes through the glass, then through the transparent/clear areas of the film positive, precisely
hitting the blue emulsion underneath.
Where the film is transparent, light passes through and hardens the emulsion it touches instantly.
Where the film has black/dense pattern areas, the UV light is completely blocked. Therefore, the blue
emulsion underneath these areas remains “soft” as it was not exposed to light.
This process typically lasts from tens of seconds to a few minutes. The lamp turns off automatically
when the time ends.
Step 5: Washing Out the Pattern
Release the vacuum, open the lid, and remove the screen plate. At this point, no visible change
is apparent on the plate.
Remove the film positive. Then, take the screen plate to a washout station and rinse the emulsion
side evenly with a gentle stream of water (or spray).
A magical phenomenon occurs:
The emulsion corresponding to the black pattern areas on the film (which were not exposed to UV light)
is “soft” and washes away, revealing the open mesh underneath. This is where ink will eventually pass
through to form the pattern.
The emulsion in other areas that was exposed and “hardened” remains intact, firmly blocking the mesh
holes. These become the non-printing (blank) areas.
After washing is complete, you can clearly see the pattern, identical to the one on the film, now on the
screen plate – open where it should be, blocked where it shouldn’t.
Step 6: Drying and Hardening – Making the Plate Sturdy
The freshly washed screen plate is wet. You need to place it in a drying cabinet.
The drying cabinet blows warm air to completely dry the plate.
Once dry, the hardened emulsion becomes more durable. Sometimes, to make the plate even stronger,
after drying it’s placed back into the exposure unit (without vacuum) and exposed to the UV lamp
again for about a minute. This is called “post-exposure” or “hardening exposure,” essentially “curing
and setting” the pattern.
At this point, a screen printing plate ready for use is completely finished.
Summary:
The entire process utilizes the principle of black areas blocking light and transparent areas allowing
light to pass through. By using vacuum pressure to ensure tight contact and ultraviolet light as the
“engraving tool,” the pattern on the film is precisely “burned” onto the emulsion-coated screen.
This ultimately creates a stencil plate that can be used for printing.
All-in-One Workflow: Combines exposure and drying in a single, space-saving unit, eliminating
the need for separate equipment and handling.
Pin-Sharp Stencil Quality: The powerful vacuum system guarantees perfect film-to-screen contact,
resulting in crisp, high-definition prints with no blurred edges.
Eco-Friendly & Cost-Effective Operation: Advanced LED UV light source consumes less power,
has a long lifespan, and contains no hazardous mercury.
User-Friendly & Consistent: The semi-automatic operation and controlled process ensure repeatable,
professional results every time, reducing operator error and training time.
control panel for semi-automatic UV exposure machine
Take full command of the exposure process with the user-friendly, semi-automatic exposure machine
control panel. This interface allows for precise setting of the exposure timer and easy activation of the
vacuum and UV light cycles, making complex stencil creation a simple, one-touch operation.
Precision Timing Control: Digital timer ensures accurate and repeatable exposure times for different
emulsion types.
Simplified Operation: Clear labels and simple buttons minimize the learning curve for new operators.
Process Consistency: Automated cycles eliminate human error, ensuring every screen is exposed identically.
Durable Components: Industrial-grade switches and display are built for reliability in a busy shop environment.
Vacuum Pump for Exposure Machine with Drying Cabinet
The heart of clarity is the integrated vacuum system. This powerful pump rapidly creates a strong vacuum
under the rubber lid, forcefully pulling the screen and film positive into intimate contact. This is the critical
step that prevents undercutting and ensures the sharpest possible image transfer from your film to the
emulsion, a core feature of any high-quality exposure machine vacuum pump with drying cabinet.
Guaranteed Sharpness: Eliminates air gaps that cause light leaks and blurry stencil details.
Fast Evacuation: Reduces cycle time by quickly achieving the required vacuum pressure.
Reliable Performance: Built with a robust motor designed for continuous use in production environments.
Essential for Fine Detail: Indispensable for printing high-resolution logos and fine text.
UV LED light Array for UV LED Exposure Machine with Drying
At the core of the JST-EX90120D is a state-of-the-art serigraphy exposure machine light source.
These LEDs emit a concentrated spectrum of UV light ideal for fast and efficient emulsion curing.
Unlike traditional fluorescent tubes, this system offers instant-on capability, consistent output
throughout its long lifespan, and significant energy savings, making it a greener and more economical choice.
Long Lifespan & Low Running Cost: LEDs last for thousands of hours, drastically reducing
replacement costs and downtime.
Instant Full Power: No warm-up time required, increasing productivity and workflow speed.
Cool & Consistent Operation: Generates less heat than conventional lamps, protecting delicate films and emulsions.
Environmentally Friendly: Contains no mercury and consumes less electricity, reducing your environmental footprint.
Integrated Drying Cabinet for Exposure Machine with Dryer
Complete the stencil-making process without moving from the machine. The built-in drying cabinet uses a
forced-air heating system to quickly and evenly dry washed screens. This protects the delicate, freshly
washed stencil from damage and dust, ensuring it is strengthened and ready for the press floor in minutes, not hours.
Faster Production Turnaround: Drastically reduces screen drying time compared to air drying.
Protected Stencil Quality: Enclosed environment prevents dust contamination and physical damage.
Uniform Drying: Circulating warm air ensures the emulsion dries evenly across the entire screen.
Space and Time Efficient: Eliminates the need for a separate, large drying rack or cabinet.
Sealing Clamps for Vacuum UV Exposure Machine
Precision engineering ensures a perfect seal. The robust clamp system around the perimeter of the lid
applies even pressure, working in tandem with the vacuum pump to create an airtight environment.
This prevents any air from leaking in during the exposure cycle, which is fundamental for the machine to
function as a reliable exposure machine for pad printing.
Maintains Perfect Vacuum: Ensures no loss of pressure during the critical exposure phase.
Durable and Reliable: Heavy-duty clamps are designed for thousands of open-close cycles.
Even Pressure Distribution: Prevents warping or uneven sealing across the large glass bed.
Essential for Large Formats: Crucial for achieving a consistent vacuum over the full 1200x900mm area.
Juste Print Machines Application Area
Medical equipment, Energy equipment, Semiconductor industry. Such as Products for glassess,
lense, pen, PVC ball, mug, toy, doll eye, sun glass, gift item, T-shirt, baby cloth, bra, eyeglass, toys,
umbrella, underwear, fruit apple, shoe, insole, watch dial number, garment, face mask, plastic cap,
safety helmet, hard safe hat, metal lens industry fabric etc.
Juste Prints Machines Application Area
Food and beverage, Toys, Mask Protective Equipment, Tableware, Beauty Makeup products,
Sports equipment, Lights & lighting, Electronic products, Washing and Cleaning products,
Household appliances, Textiles and clothing, Communication equipment, Auto Motorcycle parts.
Machines Packaging
Print Machine With tri-ply wooden case packing, the wood pallet material as fumigation wooden.
It is strong fix wooden case for sea shipment.
Printing Machines will be well packed in tri-ply wooden box then load to container and shipped
by sea/by air, as your requested.
Shipping Term
Shipping Time
Sample delivery time: 5-15 days by DHL/UPS/TNT/FEDEX express, Sea shipping
Bulk Order Shipping time: 5-15 Workdays by Express / 15-30 days by sea..
Company Information
About Shenzhen Juste Machine Co., Ltd.
Established in 2002, Shenzhen Juste Machine Co., Ltd. is a leading manufacturer and supplier of printing
machinery, including a comprehensive range of Pre-Press Equipment. With decades of experience,
we specialize in the development and production of a wide range of automated equipment, including
Pad Printing Machines, Silk Screen Printing Machines, and UV Curing Machines.
We are a trusted Pre-press equipment manufacturer in China, offering innovative and reliable solutions
for businesses worldwide. Whether you need a semi-automatic exposure unit, a fully automatic screen
printing line, or a custom machine for unique applications, we deliver machines that ensure precision,
efficiency, and durability. Our product range covers the entire workflow, making us a one-stop
Pre-Printing Equipment supplier for the global printing industry.
Our machines are widely used across various industries, including promotional products, cosmetics,
beverage packaging, and industrial printing. We support customization, OEM services, and provide
comprehensive technical support to meet the specific needs of our global clients.
How To Order
How To Place UV LED Exposure Machine order?
Placing a customized order for your exposure machine is a streamlined and transparent process
designed to meet your specific production needs. Follow these steps to get started:
Initial Contact: Reach out to us via email, WhatsApp, or WeChat to discuss your requirements
for a screen printing exposure machine.
Requirement Specification: Provide details about your needs, including the max screen size,
preferred features like a drying cabinet, and your voltage specifications.
Price Estimation: Our engineering team will review your specifications and provide a detailed
price estimate for the machine.
Proforma Invoice (PI): Upon your approval of the quote, we will issue a Proforma Invoice (PI)
outlining all costs and terms.
Payment Confirmation: Confirm the PI and proceed with the payment to secure your order.
Production Initiation: Once payment is confirmed, we will begin assembling your plate making
exposure machine.
Quality Assurance Inspection: Before shipping, our QA department conducts a thorough
inspection to ensure the machine meets our stringent quality standards.
Pre-Shipment Documentation: We provide a video outgoing-inspection report and
comprehensive manual instructions.
Shipping Arrangements: We arrange shipment from the port in Shenzhen, China.
Delivery: Expect your goods within approximately 10-30 working days.
FAQ
Q1: Are you a direct manufacturer of exposure equipment?
Yes, we are a professional and experienced Pre-Press Equipment manufacturer and factory located
in Dongguan, China. We specialize in producing a wide range of automatic exposure machines
and semi-automatic exposure units for the printing industry.
Q2: Can we customize the machine with our brand logo?
Absolutely. We support OEM services and can apply your brand logo on the machines. We also
provide custom solutions for specific pre-press needs.
Q3: What is your nearest shipping port?
We ship globally from our nearest port in Shenzhen, China, ensuring efficient and reliable delivery
for international buyers.
Q4: Where is your factory located?
Our Pre-press equipment factory is based in Dongguan, Guangdong, strategically close to Hong Kong
for convenient logistics and shipping.
Q5: Do you provide a warranty for the machines?
Yes, we offer a comprehensive 1-year guarantee on all our machines, including this exposure machine
with drying cabinet. This covers manufacturing defects and ensures reliable performance for your
small business or industrial printing needs.
Q6: How does your factory ensure quality control?
We implement strict quality control processes:
Every machine undergoes rigorous testing by our dedicated QA inspection department before shipping.
We provide video outgoing-inspection and detailed manual instructions for machine operation,
setup, and maintenance.
Our quality checks cover key components like the UV LED array, vacuum pump, and heating
elements to ensure consistent performance and output.
All machines must be passed by our QA inspection department before shipping.
Contact Us
Phone: +8618688921191
Whatsapp/wechat:+8618688921191
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