METERING RODS
300-series stainless rod with precision cold-formed thread grooves; coat weight is controlled exactly by thread size. 35 standard thread profiles with custom profiles available. Hard chrome plating extends service life — the preferred metering solution for size presses and coaters.
Technical
Overview
The YZX-MR-G grooved metering rod uses a 300-series stainless steel core with precision cold-formed thread grooves on the surface. Coat weight is controlled exactly by selecting the thread size — the groove volume determines the wet film thickness applied to the sheet.
Specifications
| Parameter | Specification |
|---|---|
| Core material | 300-series stainless steel |
| Thread profiles | 35 standard profiles, custom available |
| Available diameters | 6.35 mm – 38.00 mm (0.25 – 1.50 in) |
| Maximum length | 3 m (118 in) |
| Surface plating | Hard chrome 0.0076 – 0.0750 mm |
Metering principle
The thread groove volume meters the coating: wet film thickness (WFT) equals roughly half the thread size. Dry coat weight follows from WFT, coating volume solids and density:
WFT (μm) = 0.5 × Thread Size (μm)
DCW (g/m²) = WFT × Volume Solids% × Density (g/cm³) × 0.01
Advantages over wire-wound rods
Grooved rods offer unlimited thread profiles — including profiles that match wire-rod geometry without wire defects. No loose or broken wires, easier cleaning, longer life and more consistent coat weight.
Applications
Size press / starch coating, pigment coating, adhesive coating and other precision metering positions on paper machines and coaters.
Yuzhixing Metering Rod Manufacturing Capability
Yuzhixing designs and manufactures metering rods with attention to detail, precision grinding and diversified material options — delivering consistent coat-weight control for your size press and coater.
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