PELCO® 500 Mesh Grids


  • 500: Pitch 51µm; Hole Width 28µm; Bar Width 23µm; Transmission 30%

    1. PELCO® Center-Marked Grids, 500 mesh, 3.0mm O.D., Copper, 100/vial


    1. PELCO® Tabbed Center-Marked Grids, 500 mesh, 3.0mm O.D., Copper, 100/vial

    The PELCO® Grids are usually somewhat thicker than similar TEM grids made by electro plating processes which makes them stiffer and easier to handle without the danger of bending, but still maintain a good definition of the grid bars. The wide rims (350-400µm) on the PELCO® Grids provide additional stiffness and minimize the potential of interfering with the sample when picking up and handling the grids with tweezers. The popular PELCO® Grids were introduced 45 years ago and have found a large user base in all disciplines of TEM. The grids have a shiny (smooth) finish on one side and matte (rough) or dull finish on the other side. Grids have all been inspected before packaging. A comprehensive selection of different grid styles is offered with the standard outside diameter of 3.05mm. Styles available are Square Mesh, Hexagonal (honeycomb) Mesh, Double Folding Grids, Slotted Mesh, Tabbed Grids, Slotted or Round Hole. Available materials are Cu, Ni and Au.

    Packaging: Standard Cu grids 100grids/vial, except specials which are listed accordingly. Gold is packaged 25grids/vial.

  • Rim Width: 350-400µm.
    Thickness: PELCO® Grids are approximately 25µm thick.
    Diameter: 3.0 to 3.05mm
    Finish: Copper, Nickel and Gold grids have a matte finish on one side and a shiny finish on the other side.
    Packaging: 100 grids per vial/tube, except for specials which are listed accordingly. Gold, Titanium, Stainless Steel, Molybdenum and Aluminum grids are packaged in 25's
    Pitch: Is 1"/mesh or 25.4mm/mesh
    Example 200 mesh pitch = 25.4/200 = 127µm

    From the drawing above, the hole and bar widths are shown. Sometimes "pitch" is used in this terminology and it is the equivalent of hole width plus bar width.

    Material Code
    Copper C
    Nickel N
    Gold G
    Aluminum A
    Molybdenum M
    Titanium T
    Stainless Steel S

    PELCO® Grid Size

    Square Mesh Pitch µm Hole µm Bar µm % Transmission
    50 508 425 83 70
    75 339 284 55 70
    100 254 204 50 65
    200 127 90 73 50
    200 EOA 127 106 21 69
    300 85 54 31 40
    400 64 38 26 35
    400 EOA 64 45 19 48
    500 51 28 23 30