Xinxiang Filter

Description:
FS421/FS621 filter cartridges are dedicated filter elements custom-designed for FS421 and FS621 series metal 3D printing equipment. Designed to comply with EN 779 / ISO 16890 standards, this product achieves F9 filtration grade, with ≥85% counting efficiency for particles ≥0.4μm and initial resistance ≤150Pa. Built with high dust-capacity filter media, it is compatible with the backblow cleaning system of 3D printers to extend filter service life.

Core Technical Advantages:

Large-size design matched to big build chambers: The FS421 and FS621 machines feature a large 620 mm build plate and generate massive printing fumes. The filter’s dimensions and dust holding capacity are specially optimized to meet the exhaust airflow demand of large chambers.

Compatible with pulse backblow cleaning system: The printer is equipped with a pulse backblow system, and the filter structure is optimized for backflushing. PTFE membrane coating improves cleaning efficiency and reduces operational pressure drop.

High dust holding capacity for extended service life: Increased media weight and deeper pleats boost single-cartridge dust capacity by 30% compared with standard F9 filters, extending the replacement cycle to 1200–2000 hours.

Wide working condition compatibility: Stable filtration performance for printing various materials including titanium alloys, aluminum alloys, stainless steels and nickel-based alloys.

Application Fields:

Applicable Printing Materials for FS421/FS621 Series Machines:

Titanium Alloy (Ti6Al4V)

Aluminum Alloy (AlSi10Mg)

Stainless Steel (316L)

Nickel-Based Alloy (Inconel 718)

High-Strength Aluminum Alloy

Typical Applications:

Large aerospace structural components

Automotive spare parts

Mold manufacturing

Scientific research and development

FAQ

Q1: Are FS621 filters interchangeable with filters for other printers?
A: The FS621 is a large-format machine, and its filter specifications differ from standard cylindrical filters of other brands (EOS, SLM Solutions), so they are not interchangeable. Please specify your machine model when placing orders.

Q2: Is PTFE membrane-coated filter a standard option for 3D printers?
A: PTFE membrane coating is optional. Membrane-coated filters deliver superior ash cleaning performance and longer service life, recommended for customers with heavy printing loads and strict uptime requirements.

Q3: What requirements do printer backblow systems impose on filter cartridges?
A: Backblow systems require filters to possess sufficient compressive strength to avoid deformation under pulse airflow impact. This product adopts heavy-duty inner support frames and has passed pulse fatigue testing.

Q4: Is backblow parameter recalibration required after filter replacement?
A: No recalibration is needed. The pressure drop characteristics match original OEM filters, so backblow parameters remain unchanged. Optimization suggestions for backblow settings are available upon special request.