Xinxiang Filter

Description:
Replacement cylindrical filter cartridges for EOS M290/M400 are medium-efficiency filter elements specially designed for M290 and M400 series metal 3D printing equipment manufactured by Germany’s EOS.

Designed in accordance with EN 779 / ISO 16890 standards, this product reaches F9 filtration grade with a counting efficiency of ≥85% for particles ≥0.4μm and initial resistance ≤150Pa. Imported composite fiber filter paper delivers high filtration precision and large dust holding capacity, and it is fully compatible with the mounting interface of original OEM filters.

Core Technical Advantages:

Standard interchangeable dimensions: Standard cylindrical size φ324×660mm with the same interface as original parts (six-lug chuck or three-lug chuck) for direct replacement without any equipment modification.

Imported glass fiber media: Imported composite fiber filter paper features heat and moisture resistance plus high filtration efficiency. Optional PTFE membrane treatment upgrades performance to F9+ grade.

Pleated design for expanded filtration area: 200–220 dense pleats provide each cartridge with a filtration area of 15–21 m². The ultra-large dust holding capacity reduces replacement frequency.

Wide operating temperature range: Working temperature ≤120°C with instantaneous temperature resistance up to 150°C, matching long-duration printing cycles of M290/M400 printers.

Working Condition Matching Table:

Application Fields:

Printing Materials Compatible with EOS M290/M400/M300:

Titanium Alloy (Ti6Al4V ELI)

Aluminum Alloy (AlSi10Mg, Scalmalloy)

Stainless Steel (316L, 17-4PH)

Nickel-Based Alloy (Inconel 718)

Cobalt-Chromium Alloy (CoCr)

Typical Application Scenarios:

Mass production of aerospace and aviation components

Medical implants (dental crowns, bone plates, acetabular cups)

Conformal cooling channels for molds

Prototyping and small-batch production of automotive parts

Material research for universities and research institutes

Case & Data Verification:

Case: Filter Application for an Implant Manufacturer Using EOS M290

A medical implant manufacturer operates three EOS M290 printers to produce titanium dental crowns and bone plates. After switching to the replacement cylindrical filters, the measured initial pressure drop is 138Pa, and the differential pressure rises to 225Pa after 1200 operating hours. The surface roughness Ra of printed parts is ≤5μm, meeting medical implant standards. The procurement cost of filters is reduced by roughly 50% compared with original OEM parts.

FAQ

Q1: Is there any difference in filtration efficiency between replacement filters and original OEM filters?
A: Replacement filters adopt imported media of equal or higher grade. Multiple lab tests prove their filtration performance matches original standards, and some variants deliver lower initial pressure drop.

Q2: Are filters interchangeable between M290 and M400 printers?
A: Yes. M290 and M400 share the identical φ324×660mm cartridge size and interface design, so their filters can be used interchangeably.

Q3: How to judge when a filter needs replacement?
A: Monitor differential pressure primarily. New filters have an initial pressure drop of around 120–150Pa; replace the cartridge when the differential pressure hits 300Pa or the equipment triggers an alarm. Smoke concentration sensors inside the build chamber can also serve as an indicator.

Q4: What are the advantages of PTFE membrane-coated filters?
A: The PTFE membrane enables surface filtration to prevent dust from penetrating deep into the media. Pulse backblow cleaning achieves thorough dust removal with a pressure drop recovery rate ≥90%. Recommended for high-volume production customers, extending filter service life by 20–30%.