1. Product Description Deep processed filter products are finished filter elements manufactured from woven mesh, sintered mesh, perforated sheet, or multi-layer composite media — precision cut, stamped, welded, edged, and assembled into ready-to-install components. Bolin operates in-house processing lines (cutting, stamping, welding, and edge-banding) to produce filter discs, filter screens, filter tubes, and filter baskets for OEM filtration systems across industries. 2. Product Types

Type	Description	Typical Application
Filter Discs	Round or custom-shape stamped filter discs in plain weave, Dutch weave, or sintered mesh	Pipeline filters, oil strainers, gas filters
Filter Screens	Square or round mesh screens, with or without metal edge binding	Vibrating screen fittings, filtration machine components
Filter Tubes / Cartridges	Woven or sintered mesh rolled and welded into tubes, with end caps or fittings	High-pressure filter cartridges, backwash filter elements
Filter Baskets	Perforated plate + fine mesh lining composite; with flange and handle	Industrial strainer baskets, pre-filter protective housings

3. Available Materials Stainless Steel 304 / 316 / 316L (primary grades) | Duplex 2205 / 2507 | Hastelloy | Monel (for special duty applications) | Composite structures: perforated plate + woven/sintered mesh lining 4. Key Features • One-stop custom manufacturing: from raw mesh to finished filter element, all in-house • Filtration precision range: from micron-level (1 µm sintered) to millimetre-level • Robust construction: mature welding and edging processes withstand high pressure and temperature • Standardised and bespoke: OEM batch production to customer drawings • Clean, smooth surfaces: easy to inspect, clean, and validate 5. Applications • Oil refining and petrochemical filtration systems • Pharmaceutical and food & beverage sterile filtration • Water treatment and environmental engineering • Hydraulic and lubrication systems • Machining coolant filtration • OEM filtration equipment component supply 6. Specifications (Reference — confirm with factory) 6.1 Filter Disc / Screen

Parameter	Reference Range
Diameter	1 – 4300 mm or even big,customized is available
Filtration Rating	1 mesh – 635 mesh; or 5 µm (Dutch weave) to 3 mm
Edge Treatment	Plain edge / metal-banded / adhesive-sealed
Forms	Flat disc, corrugated disc, conical disc

6.2 Filter Tube / Cartridge

Parameter	Reference Range
Outer Diameter	20 – 300 mm
Length	50 – 2,000 mm
Filtration Rating	1 µm – 3 mm
End Connections	Plain end / flange / threaded / welded end cap

6.3 Filter Basket

Parameter	Reference Range
Diameter	50 – 800 mm
Length	100 – 1,500 mm
Construction	Perforated plate outer shell + fine mesh inner lining, top flange
Material	304 / 316 Stainless Steel

Note: Bolin factory photography (2024) showing filter tube and filter disc production lines is available for website use. All specifications subject to factory confirmation.