Entry and backup board for pcb drilling

  • Composition

    wooden entry and backup board fit for the PCB drilling with high grade and precise grade,Base material with Wooden fiber of pine tree,willow tree, eucalyptus tree and poplar tree etc.

    entry and backup board

  • Description

    Entry and backup board for pcb drilling description

    Thickness 2.7mm,2.5mm, 2.0mm,
    Thickness Tolerance ±0.15(WM27 WM25),±0.10 (WM20)
    Surface Hardness 80±5 degree(shore D)
    Usual Sizes 37"×49",41"×49",43"×49"
    Special Sizes Cut to sizes on customers’ requests
    Size Tolerance ±2mm
    Destiny 980±30kg/m3
    Flexural Strength ≤0.3% of diagonal length
    Fabrication Suitability Sawing or drilling
    Strength against Bending ≥55N/mm2
    Surface Roughness smooth
    Water Content 5.5%~7.0%
    Expansion Rate after Moisture Absorption (24h) ≤35%
    Formaldehyde Release ≤30mg/100g
    Package 250pcs/pallet
    Storage Full package, keep even, room temperature, put in ventilated place, caution against water, damp, keep away from fire and hot things
    Period of Validity Store as the terms given above,six months from shipping date

  • Product Advantage

    wood entry and backup board Advantages:
    1. It is a composite of the Melamine paper and wooden fiber board with high density. It is especially made to replace the Phenolic backup board. 
    2. It is difficult to distort.  The warping degree is smaller than the Phenolic paper backup board.
    3. It reduces the abrasion of the drill and lengthens the life of drill. 
    4. It can save the cost and it has more sizes. 
    5. It doesn’t pollute the environment.

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pcb backup board
pcb backup board pcb backup board