Anyone working in the filter sieve industry can fully relate to this experience: customer orders are growing increasingly diversified. Today you get a request for pharmaceutical-grade 3μm ultra-microporous sieve, tomorrow a 0.5mm coarse filter plate for water treatment, and the day after that you receive a custom non-standard part with profiled shaped holes. If you have to replace the equipment or open a new mould for each different aperture, both cost and lead time will be unbearable. Is there a single piece of equipment that can cover all demands ranging from extremely tiny micropores to arbitrarily large apertures? The answer is definitely yes.

JiajiaYong Laser, a brand focused on precision laser drilling for 29 years with in-depth cooperation with the Institute of Laser, Chinese Academy of Sciences, would like to share with you how we achieve flexible coverage from 0.003mm apertures to arbitrarily large openings with just one set of equipment.

一、Why does filter sieve processing demand "one single equipment for all scenarios"?

Aperture requirements in the filtration industry cover an extremely wide span. Medical filtration and gene sequencing chips demand 3-10μm ultra-micropores; fine chemical and food & beverage processing requires 50-200μm medium apertures; while environmental water treatment and petrochemical scenarios need pores of 0.5mm and above, even special profiled holes. Traditional mechanical punching needs a dedicated mould for each aperture, and etching also requires different mask plates, leading to high specification-switching cost and long cycle time. If one single equipment can cover the full range from micrometer level to millimeter level, it brings the following advantages:

• 1. More flexible order acceptance: You can respond quickly no matter what aperture the customer requests, no need to outsource work or turn down orders.

• 2. Higher equipment utilization: One set of equipment can handle multiple product categories, so you get faster return on investment.

• 3. Lower inventory pressure: No need to prepare multiple sets of moulds and tooling for different specifications.

二、How does JiajiaYong Laser realize coverage from 3μm to arbitrarily large apertures?

1. Minimum Aperture: 3μm ultra-micropore processing

We adopt femtosecond laser (pulse width < 400fs) matched with high-NA (numerical aperture) objective lens, to get a focused spot diameter of ~1.5μm. With a layered spiral scanning strategy that removes 0.2-0.3μm of material per layer, we finally form micropores with 3μm diameter and 5:1 aspect ratio. The hole wall is smooth and burr-free, no microcracks can be observed under SEM. This process is widely applied in medical filtration, gene chips, precision atomization sheets and other fields.

2. Medium Aperture: High-efficiency processing for 10-500μm

For this range, we use UV nanosecond laser (355nm) or fiber laser, paired with high-speed galvanometer and on-the-fly drilling mode, to reach a maximum speed of 100 holes per second. No matter it is round hole, square hole or profiled shaped hole, the system will automatically generate scanning path after you import the CAD drawing, no mould required. The hole wall roughness Ra is lower than 0.4μm, burr-free and no deformation.

3. Large Aperture: Rotary cutting process for sizes above 0.5mm

Many people assume laser is only suitable for drilling small holes, but with our "rotary cutting" process, laser can also process large apertures with high efficiency. The laser beam scans along a circular track, removing material layer by layer just like a CNC milling machine. You can adjust the aperture size simply by modifying the scanning radius in the program, easily realizing sizes from 0.5mm to 3mm or even larger. The hole after rotary cutting has a smooth wall and controllable taper, and can process any shape: square holes, long slotted holes, and any profiled holes are all supported.

4. More flexible "arbitrarily large aperture"

For oversized apertures or special shapes beyond the conventional range, JiajiaYong Laser equipment supports 5-axis simultaneous machining, paired with large-spot scanning, to produce openings of arbitrary size and shape. No matter it is a 10mm diameter round hole, or a complex profiled contour, the whole processing can be completed in one single clamping.

三、How to realize "switch between different specs without replacing the equipment"?

Our precision laser drilling machine is designed with full flexibility for multi-spec processing from the very beginning:

• 1. Fast spec switching: Switching from 3μm ultra-micropore processing to 1mm large pore processing only takes 5 minutes to replace the focusing lens and call corresponding pre-stored process parameters, our database contains process recipes for more than 200 types of materials, no downtime waiting needed.

• 2. Digitalized process management: All pore shapes, aperture sizes and arrangement patterns are stored in the system as digital files. Once we receive customer drawings, we can import them directly and start processing, no physical moulds required.

• 3. Automation integration: The equipment can be matched with automatic loading & unloading, visual positioning and online inspection modules, to realize full-process unmanned operation from raw material feeding to quality inspection. You can maintain high production efficiency even with frequent spec switching.

四、Delivery Capability of JiajiaYong Laser

Based on 29 years of technical accumulation and more than 500 cases in the filtration industry, JiajiaYong Laser has achieved the following verifiable engineering indicators in the multi-spec filter sieve processing field:

Indicator	Measured Value
Minimum processable aperture	3μm
Maximum processable aperture	3mm (customizable for larger sizes)
Processing accuracy (static repetitive positioning)	±1μm
Maximum drilling speed	100 holes per second
Aperture consistency CPK	≥1.67
Hole wall quality	Burr-free, no recast layer, Ra<0.4μm
Material compatibility	304/316L stainless steel, titanium alloy, nickel, Hastelloy, copper, aluminum, polymer materials, etc.
Supported pore types	Round hole, square hole, profiled hole, tapered hole, stepped hole, curved-surface hole
Maximum processing dimension	600mm×600mm (customizable for larger formats)
Automation integration	Supports automatic loading & unloading, visual positioning, online inspection and MES interconnection

The equipment supports exclusive non-standard customization, and we can provide complete solutions from single standalone machine to full-automatic production line according to customers' specific demands. Our corporate mission: No hole is too difficult to drill.

五、Our Suggestion: Verify with free sample testing, speak with real data

The solution that one single equipment covers all filter sieve processing demands from 0.003mm to arbitrarily large apertures is not a conceptual gimmick, but a mature solution that has been implemented in dozens of filtration enterprises. We suggest you send your sieve samples and drawings to our Application Verification Center in Shenzhen. We provide free proofing service, and will deliver a process report within 3-5 working days covering the following contents:

• 1. CPK and aperture consistency data under different aperture specs

• 2. SEM photos of the hole wall (to verify burr-free and no recast layer)

• 3. Flux test comparison (separate testing for micropores and large pores)

• 4. Spec switching efficiency and 3-year total cost of ownership comparison

If you find the result satisfactory, we can further discuss equipment configuration and production line integration. If not, you still get a set of professional processing data, which is also valuable reference for your subsequent process improvement.

For 29 years, JiajiaYong Laser has always stuck to our mission: No hole is too difficult to drill. We will work with you to easily solve all multi-spec filter sieve processing demands with one single set of equipment.