Perforated Screen Plate
Specifying Ametco perforated screen plate.

Click here for diagrams and specs

Quantity
The number of perforated screen plates of the same thickness, width, length, perforation and bars.

Thickness
Steel - Use the U.S. Std. Ga. Table - Revised Nov. 1942
Stainless Steel - Use the U.S. Standard Gauge Table
Monel - Use the U.S. Standard Gauge Table
Brass, Copper, Muntz Metal & Aluminum - Use the B&S Gauge Table

Metal (Indicate the type of metal required.)
Steel Plate - a min. of .20 C and a min. of .40 Mn

Abrasion Resisting (AR) Steel Plate - a min. of .35 C
and a min. of 1.20 Mn

Width
The "width" is the dimension at right angles to the flow of material. Specify the overall width. If hook flanges are required, specify: "width (measured outside the hook flanges)."
Tolerance of the Width: +0, -1/4"

Length
The "length" is the dimension of the perforated screen plate that is parallel to the flow of the material being screened. Specify the overall length.
Tolerances of the Screen Length: +0, -1/4"

Perforations
Specify size and shape.

Arrangement of Perforations
Staggered arrangement (60° pattern) is the standard. Perforations are normally staggered in the direction
of the flow of the material being screened.

Bars
The "bar" is the metal between perforations and is measured
at the point where perforations are closest. Specify the width
of the bar.

Method of Attaching Perforated Screen Plate
to Vibrating Screens
Hook Flanges - For standard "tension-type" vibrating screens, specify "Standard Hook Flanges" or "Welded Hook Flanges".

Bolted to Frame of Vibrating Screen - If the perforated
screen plate is to be bolted, submit sketch showing location,
size and type of the bolt holes. Also specify the width of
blank margins on the sides and the ends of the perforated
screen plate.

Crowned Screens
If a screen plate is to be "crowned", state the amount of the crown measured at the centerline. Unless otherwise specified, the standard crown for screens 3/16" thick and heavier will be furnished as follows:

For 3' or 4' wide vibrating screens - 1/2" crown
For 5' wide vibrating screens - 3/4" crown
For 6' wide vibrating screens and wider - 1" crown

Other Information
For slotted perforations - specify whether the long dimension of the slot is parallel with the width or length of the perforated screen plate.

Specify if the screen plate is to be "corrugated" to distribute
or retard the flow of material.

For screens requiring "skid bars" to scalp off oversize material, specify bar size and location.
Include make, model and size of vibrator.