What we can hold, and how we prove it
Weaving, sintering, welding and inspection are separate trades that are usually bought separately. Doing all four here means a tolerance is set once and measured at the end of the same building.
Weaving
Twenty-eight looms cover plain weave, twill weave and Dutch weave from 8 to 400 mesh, in 304, 316, 316L, 904L, Monel and Hastelloy. Roll width goes to 2,000 mm in the coarser counts.
Wire diameter is checked on incoming spools rather than assumed: a nominal 100 mesh woven from 0.10 mm wire and one woven from 0.11 mm wire do not filter the same, and a customer comparing two suppliers' datasheets is usually looking at exactly that difference.
From wire to inspected element
Weaving
Cloth is woven to the approved weave and checked for mesh count, wire diameter and aperture before it enters the next stage.
Sintering
Layers are stacked, fixtured and diffusion-bonded under vacuum. One furnace load equals one batch, so the cycle is recorded against the elements it produced.
Cutting and welding
Laser cutting to profile, then seam welding, end-cap fitting and edge reinforcement depending on the element type.
Inspection
Bubble point, air permeability, dimensions and weld integrity are measured and recorded per batch before packing.
Sintering, and why the bond matters
A sintered composite is not glued or clamped. The layers are held in contact under load and heated until the contact points diffuse into each other, which is why a five-layer sheet can be backflushed at pressure and reused for years rather than replaced every cycle.
The furnace cycle is the most sensitive step in the whole plant, and the one most often skipped by suppliers who assemble bought-in mesh. Under-sintering leaves a bond that fails at the first cleaning cycle; over-sintering closes the pores and quietly raises the rating. Both look identical on a datasheet and neither is visible to the customer until the element is in service.
Inspection, and what ships with the goods
Every batch leaves with a bubble-point result for the rating layer, a dimensional report against the approved drawing, and a weld inspection record. Material certificates to EN 10204 3.1 are issued against the heat numbers of the wire actually consumed.
Third-party inspection is welcome and arranged routinely for European and Japanese customers. If a batch does not pass our own inspection it does not ship, and the reason is recorded — a rejection we can explain is worth more to the next order than a shipment we cannot.
Send us your drawing or specification
Tell us the medium, the flow rate and the filtration rating. We will come back with a construction, a lead time and a price.