PCB Laser Direct Imaging Machines Made in China. Trusted Worldwide.
KST Optical manufactures high-precision PCB LDI (Laser Direct Imaging) equipment -- eliminating photomask costs, boosting yield rates, and accelerating your PCB production cycle. ISO 9001:2015 certified. Stock code 874636.
Everything You Need to Know Before Placing Your Order
PCB buyers need the right information to make confident decisions. Here's what separates a great LDI supplier from the rest.
Eliminate Photomask Costs
Traditional UV exposure requires expensive photomasks for every design revision. LDI writes patterns directly from digital files -- zero mask cost, instant design changes, faster prototyping.
±5μm Registration Accuracy
KST LDI machines achieve ±5μm layer-to-layer registration accuracy -- critical for HDI, fine-pitch, and multi-layer PCBs where misalignment means scrapped boards and lost revenue.
Faster Production Cycles
LDI cuts setup time from hours to minutes. No film development, no mask alignment. Your production line runs faster, your customers get boards sooner, and your capacity scales efficiently.
LDI vs. Traditional UV Exposure At a Glance
KST LDI Machine Series
From R&D labs to high-volume production lines -- we have a machine for every throughput requirement.
KST-LDI-M Series
Entry-level LDI solution for PCB prototyping and small-batch production. Ideal for R&D facilities and PCB shops transitioning from traditional exposure.
- Exposure area: 520×420mm
- Min. line/space: 40μm
- Throughput: 20-40 pcs/hr
KST-LDI-SA Series
CCD auto-alignment with semi-automatic loading. The sweet spot between cost and throughput for mid-volume PCB manufacturers.
- CCD alignment: ±5μm
- Min. line/space: 30μm
- Throughput: 60-80 pcs/hr
KST-LDI-FA Series
Fully automated loading, alignment, exposure, and unloading. Designed for high-volume PCB production lines requiring 24/7 unattended operation.
- Full inline automation
- Min. line/space: 25μm
- Throughput: 120-180 pcs/hr
KST CCD LED Exposure
High-precision CCD alignment LED exposure machines -- manual, semi-automatic, and fully automatic variants for diverse PCB production needs.
- LED uniform illumination
- CCD auto-alignment system
- Cost-effective upgrade path
A Real Chinese Factory You Can Trust
We're not a trading company. KST Optical is a publicly listed manufacturer with a physical factory in Guangdong, China -- and the credentials to prove it.
Founded by Dr. Wanghua in 2011 -- Built to Last
KST Optical (Guangdong KST Optical Co., Ltd.) was founded in June 2011 by Dr. Wanghua. Over 14 years, we've grown from a single-product optical company into a group with four subsidiaries spanning equipment manufacturing, lighting technology, intelligent equipment, and software development.
Why PCB Manufacturers Choose KST
After-Sales Support
Remote diagnostics, spare parts supply, and on-site service available. We support your machine for its entire lifecycle.
Competitive Factory Pricing
Direct from manufacturer -- no middlemen, no inflated margins. Get the best price with full technical accountability.
Custom Configuration
Board size, automation level, resolution, and software integration -- we configure machines to your exact production requirements.
Ready to Upgrade Your PCB Exposure Process?
Tell us your production requirements. Our engineers will recommend the right LDI configuration, provide a detailed quote, and arrange a live demo if needed.
Request a Free Quote
No obligation. Response within 4 business hours.