70% Energy Saved: Eco UV LED Exposure Machine for Silk Screen Printing

UV LED Exposure Machine

The JST-EX90120R represents an economical screen printing exposure machine solution focusing on
essential exposure performance. This reliable uv exposure machine features a powerful vacuum system ensuring
perfect film-to-screen contact for sharp stencil reproduction. The semi-automatic operation makes it perfect for
small to medium print shops seeking quality exposure machine for plate making at an accessible price point.

Products Description

Process Steps:

Step 1: Applying Emulsion to the Screen
Working under low-light conditions (or using yellow safe lights, avoiding bright white light), coat the
screen mesh with the photosensitive emulsion.
Utilize a coating trough to spread the emulsion evenly across one side of the screen, forming a uniform,
smooth blue layer.
Allow it to rest for several minutes, letting the emulsion air dry. The plate is now prepared. It resembles
a board covered with a “sensitive material,” awaiting the transfer of a design.

Step 2: Positioning and Contact
Position your film positive (with the image facing upward) at the center of the exposure unit’s glass plate.
Next, take your prepared screen plate and carefully place it, emulsion-side down, over the film, ensuring
correct alignment.
Crucially, the image side of the film must achieve intimate contact with the screen’s blue emulsion layer.
No gaps should exist between them.

Step 3: Vacuum Sealing and Compression
Secure the exposure unit’s rubber cover.
Engage the vacuum pump. A humming sound will indicate the machine is removing air from between
the glass and the cover.
Observe the screen being pressed firmly onto the glass by atmospheric pressure, eliminating any air
between the film and the emulsion. This step is vital for achieving sharp definition and preventing
UV light scatter.

Step 4: Exposing the Screen
Initiate the exposure cycle. The unit’s powerful ultraviolet lamp will activate.
Ultraviolet radiation passes through the glass, then through the clear sections of the film, accurately
reaching the emulsion beneath.
Areas under the film’s transparent sections receive light, causing the underlying emulsion to harden
or cure.
Areas under the film’s black, opaque design elements block the UV light. Consequently, the emulsion
in these shielded zones remains soluble or “soft.”
Exposure duration typically ranges from thirty seconds to several minutes, after which the lamp
automatically switches off.

Step 5: Developing the Image
Release the vacuum, open the unit, and retrieve the screen plate. Visibly, the plate appears
unchanged at this stage.
Remove the film positive. Then, take the screen to a washout area and gently rinse the emulsion
side with a soft spray or stream of water.
A revealing process occurs:

The emulsion in areas corresponding to the film’s black pattern (unexposed), being soft, dissolves
and washes away, uncovering the open mesh beneath. These areas will later permit ink passage,
forming the printed image.
The hardened emulsion in the exposed areas resists washing and remains, permanently sealing
the mesh openings to create the non-printing background.
Once rinsed, the screen clearly displays a precise replica of the film’s pattern—open where ink
should flow, blocked elsewhere.

Step 6: Drying and Curing – Strengthening the Stencil
The newly washed screen is wet and fragile. Place it into a drying cabinet.
The cabinet circulates warm air, thoroughly removing all moisture from the screen.
Once dry, the hardened emulsion becomes significantly more robust and durable. For enhanced
stencil life, a common practice after drying is to return the screen to the exposure
unit (vacuum not required) for a brief overall re-exposure to UV light, often for about a minute.
This “post-hardening” or “curing” step finalizes the stencil’s durability.
At this stage, a fully functional screen printing stencil is complete and ready for use.

Overview:
The fundamental principle involves using opaque areas to block light and transparent areas to
transmit it. A vacuum ensures flawless contact, while ultraviolet light acts as the precise “etching agent,”
transferring the film’s design onto the emulsion-coated screen. The result is a finished stencil for printing
applications.

Cost-effective professional exposure solution
Superior vacuum performance for razor-sharp details
Eco-friendly LED technology with minimal power consumption
User-friendly operation with consistent, repeatable results

Control Panel for automatic exposure machine

Digital control interface for automatic screen exposure machine featuring precise digital timer and operation
controls for consistent exposure management.

Accurate digital timing for perfect exposure cycles
Simplified operation with intuitive interface design
Repeatable process settings for batch consistency
Durable industrial-grade components for long-term reliability

Vacuum pump for exposure machine

Vacuum System for cliche exposure machine delivering powerful suction for perfect film-to-screen
contact and edge definition.

Rapid air evacuation reduces cycle times
Consistent vacuum pressure across entire exposure area
Industrial-grade pump for continuous operation
Essential for high-resolution stencil production

LED Array for uv led exposure machine

UV LED lighting system for steel plate exposure machine providing even, consistent illumination across
the full 1200x900mm exposure area.

Mercury-free design for environmental safety
Long lifespan with consistent UV output
Instant activation with no warm-up time required
Even light distribution eliminates hot spots

Sealing Clamps for vacuum uv exposure unit screen printing machine

Sealing Clamps for vacuum uv exposure unit screen printing machine ensuring airtight compression during
exposure cycles.

Heavy-duty construction for daily operation
Even pressure distribution across all edges
Reliable vacuum maintenance throughout exposure
Essential for large-format applications

Exposure Chamber for uv exposure machine for silk screen

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. stands as a premier Pre-press equipment
manufacturer with decades of specialized experience in printing machinery development.
Our comprehensive product range includes advanced Pre-Press Equipment solutions designed
for modern printing facilities.
As a dedicated exposure machine factory, we combine engineering excellence with practical
manufacturing expertise to deliver reliable, high-performance equipment. Our focus on innovation
ensures that each machine, including the JST-EX90120R screen exposure machine, meets the
rigorous demands of commercial printing operations while maintaining operational efficiency.
We serve diverse industries including promotional products, packaging, and industrial printing,
providing customized solutions and comprehensive technical support to clients worldwide.

How To Order

How To Place UV LED Exposure Machine order?
Initial Consultation: Contact our technical team to discuss your specific screen making requirements
Application Analysis: Share details about your typical screen sizes, production volume, and emulsion types
Detailed Quotation: Receive comprehensive pricing, specifications, and delivery timeline
Order Confirmation: Approve the proforma invoice to initiate the manufacturing process
Precision Manufacturing: Our team assembles and calibrates your machine to exact specifications
Quality Assurance: Rigorous testing and inspection ensure optimal performance
Secure Packaging: Professional packaging for complete transit protection
Global Shipping: Arrangement of reliable transportation from Shenzhen port
Delivery Tracking: Complete visibility throughout the shipping process
Final Installation: Machine arrival and setup verification

FAQ

Q1: What distinguishes this exposure unit from basic models?
The JST-EX90120R incorporates industrial-grade components including a high-performance
exposure machine vacuum pump and professional UV LED exposure machine system,
ensuring production-level reliability and consistent output quality.

Q2: Can this machine handle different emulsion types?
Yes, the adjustable exposure timing and optimized UV spectrum accommodate various emulsion chemistries,
from dual-cure to pure photopolymer formulations, making it a versatile plate making exposure machine.

Q3: What is the maximum screen size capability?
The unit accommodates screens up to 1200x900mm, suitable for most commercial applications from textile
printing to industrial marking, functioning as a high-capacity screen printing film exposure machine.

Q4: What power requirements does this machine have?
Operating on standard 220V/50HZ power, the system consumes only 1.5KW, making it energy-efficient
and suitable for most workshop environments without special electrical requirements.

Q5: Do you provide technical documentation?
We supply comprehensive operation manuals, maintenance guides, and technical specifications to ensure
proper setup and ongoing optimal performance of your exposure unit machine for screen printing.

Q6: What warranty coverage is provided?
All machines include comprehensive 12-month warranty coverage, protecting your investment and ensuring
long-term reliability as a professional serigraphy led exposure machine.

All machines must be passed by our QA inspection department before shipping.

Contact Us
Phone: +8618688921191
Whatsapp/wechat:+8618688921191
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