Xinxiang Filter

Description:
Replacement square filters for EOS 280 are alternative filter elements specially designed for the early M280 series metal 3D printing equipment manufactured by Germany’s EOS. The EOS M280 adopts a square filter chamber design with extremely high standards for recirculating gas purification — inert gas must be filtered before recovery and circulation to remove submicron metal fumes.

This product is designed in accordance with the EN 1822 standard, with H13-H14 filtration grades. It achieves particle efficiency of ≥99.95%–99.995% for 0.3μm particles and initial resistance ≤250Pa. Its overall dimensions and sealing interfaces fully match the original square filters to enable seamless replacement.

Core Technical Advantages:

Final high-efficiency filtration: H13/H14 grade filtration guarantees recirculated inert gas cleanliness meets ISO 8573 Class 1 standards and safeguards the quality of printed parts.

Custom square structural design: The sealing structure is optimized for the square filter chamber of M280, delivering reliable four-corner sealing and eliminating bypass of unfiltered gas.

Application Fields:

Gas Recirculation System of EOS M280 Equipment:

High-efficiency filtration for recovered inert gas (Argon / Nitrogen)

Terminal filtration for atmosphere purification inside the build chamber

Applicable High-Standard Printing Materials:

Titanium Alloy (Ti6Al4V ELI)

Nickel-Based Alloys (Inconel 718, 625)

Cobalt-Chromium Alloy (CoCr)

Typical Applications:

Aerospace & aviation components

Medical implants

High-end industrial components

Case & Data Verification:

Case: Square Filter Replacement for EOS M280 at an Aerospace Component Manufacturer

A factory uses EOS M280 printers to fabricate titanium alloy aerospace parts with extremely strict requirements for recirculating gas cleanliness. Original square filters need to be imported from Germany with long lead times. After adopting domestic replacement H13 square filters, the unit passes the on-board PAO leak test with an initial pressure drop of 210Pa. Testing after 2000 hours of operation confirms qualified particulate levels in recirculated gas and fume-free printed components. Procurement costs are reduced by roughly 45%, and delivery lead time is shortened to 10 days.

FAQ

Q1: Can the replacement square filter match the efficiency standard of the original OEM filter?
A: Yes. The replacement filter uses imported glass fiber media of identical grade and has passed MPPS efficiency testing. The H13 grade delivers ≥99.95% efficiency at 0.3μm, with performance indicators equivalent to the original filter.

Q2: What precautions should be taken during square filter installation?
A: Ensure the sealing gasket is intact and the mounting surface is clean. A PAO leak test is recommended after installation to verify zero leakage.

Q3: How to choose between H13 and H14 grades?
A: H13 generally meets the requirements for aerospace components; H14 is recommended for printing high-value nickel-based alloys or applications with ultra-strict oxygen content limits.

Q4: Will replacement filters affect the equipment gas flow rate?
A: The initial pressure drop of replacement filters (210–250Pa) is basically consistent with original OEM filters and will not interfere with the equipment’s gas circulation flow.