Solutions

Precision Processing
& CNC Machining

Our sintered metal products are produced using precisely controlled sintering parameters and post-sinter CNC machining to achieve tight dimensional tolerances — ready for drop-in replacement in existing filter housings or custom assemblies.

±0.05 mmOD tolerance
Ra 0.8 µmSurface finish
5-AxisCNC capability
100%Dimensionally inspected
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Capabilities

Processing Methods We Offer

Powder Sintering

Controlled atmosphere sintering to achieve target pore size and porosity. Precise temperature profiles ensure consistent pore structure across the entire batch. This process is used for our sintered powder filter elements and sintered porous components.

  • Pore size control: ±10% of target
  • Materials: SS 316L, Ti, Monel, Hastelloy
  • Atmosphere: H₂, N₂, vacuum

CNC Turning & Milling

Post-sinter CNC machining for tight-tolerance OD, ID, and end-face dimensions. Threaded, flanged, and custom end-cap geometries machined to drawing.

  • OD tolerance: ±0.05 mm
  • Length tolerance: ±0.1 mm
  • Thread standards: BSP, NPT, metric

Wire EDM & Laser Cutting

Precision cutting of sintered mesh and perforated sheet to net-shape profiles — discs, rings, and custom contours without edge distortion or burring.

  • Kerf width: <0.1 mm
  • Suitable for hardened and thin materials
  • No mechanical stress on porous structure

Surface Finishing

Electropolishing, passivation, and sandblasting services to improve corrosion resistance and surface cleanliness for pharmaceutical and semiconductor applications.

  • Electropolish: Ra ≤ 0.4 µm achievable
  • Passivation: ASTM A967 / AMS 2700
  • Citric acid passivation available

Welding & Assembly

TIG welding of sintered elements to end-caps, flanges, and housings. Full penetration welds tested for porosity. Sub-assembly and pressure-test ready units supplied.

  • TIG weld qualification per AWS D1.6
  • All welds dye-penetrant inspected
  • Pre-assembled filter units available

Dimensional Inspection

CMM and optical inspection of critical dimensions on all finished components. Full dimensional reports supplied for first articles and on request for production lots.

  • CMM accuracy: ±0.005 mm
  • 100% visual inspection
  • First-article inspection report standard
Precision-machined sintered porous metal components
Precision Standards

Dimensional Tolerances & Material Grades

All sintered filter elements and titanium components are machined to the following standard tolerances. Tighter tolerances are available on request for critical-fit applications.

Parameter
Standard Tolerance
Outer Diameter
±0.05 mm (tight: ±0.02 mm)
Inner Diameter
±0.1 mm
Length / Height
±0.2 mm (tight: ±0.05 mm)
Plate Thickness
±0.1 mm
Pore Size (sintered)
±10% of nominal (bubble-point verified)
Surface Roughness
Ra 0.8–3.2 µm (standard) · Ra ≤ 0.4 µm (EP)
316L SS Ti Gr2 Ti Gr5 Monel 400 Hastelloy C-276 Inconel 625
Where Precision Matters

Applications That Demand Tight Tolerances

Replacement Filter Elements

Drop-in replacements for existing housings with exact OD/ID matching. No housing modification required.

PEM Electrolyzer PTL

Ti fiber felt and sintered discs with precise porosity and thickness for porous transport layer stacks.

Pharmaceutical Housings

Electropolished filter elements with validated pore size and Ra for sterile and clean-in-place systems.

Gas Chromatography Frits

Small-diameter sintered discs with sub-micron pore tolerance for analytical instrumentation.

Hydraulic Filter Inserts

High-pressure rated elements with precise end-cap dimensions for OEM hydraulic system integration.

Custom Electrolyzer Frames

Titanium machined components and perforated sheet cut to drawing for electrolyzer stack assemblies.

Client Feedback

What Precision Processing Customers Say

"

Tolerances on the Ti tube inside diameter were ±0.05 mm across a batch of 500 units. Our incoming QC confirmed every piece. Consistent precision at that volume is exactly what our assembly line requires.

Engineering Manager Precision Equipment Manufacturer · Japan
"

We required laser-drilled micro-perforations at 0.3 mm diameter on thin Ti sheet. FILTURE confirmed capability in 48 hours, sent test pieces within a week, and hit every dimensional requirement on the production run.

Process Engineer Medical Device Company · USA

Have a Tight-Tolerance Requirement?

Share your drawing or specification. Our engineers will confirm feasibility and tolerance capability — and quote accordingly.

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