REVOLVING SCREENS

1 QUANTITY -State the number of screen sections required
(see illustration above).

2 THICKNESS -Specify in inches or gage number.

Steel - U.S. Std. Ga. Table Revised 11/42.
Monel - U.S. Std. Ga. Table
Stainless Steel - U.S. Std. Ga. Table
Brass, Muntz, Aluminum - B&S Ga. Table

3 METAL -State the kind of metal required. Steel plate: a minimum of .20 C and a minimum of .40 Mn shall be used. Abrasion resisting (AR) steel plate: a min. of .35 C and a min. of 1.20 Mn.

4 DIAMETER -Specify the exact outside diameter or the exact inside diameter of the Perforated Screen Section in inches.

5 LENGTH -Specify the length of the screen section (see illustration above). Tolerance of the length of the screen: plus 0" minus 1/4".

6 PERFORATED SIZE AND SHAPE -See Page 4 for perforations that are available.

7 ARRANGEMENTS OF PERFORATIONS -Staggered arrangement (600 pattern) is standard for Perforated Screen Plate when used on revolving screens.

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

9 SEGMENTS -Specify the number of segments to each section. (See illustrations above).

10 METHOD OF ASSEMBLING PERFORATED SCREEN PLATE SEGMENTS TO MAKE SECTIONS AND/OR CYUNDERS
(a) BUTT JOINTS -NOT FASTENED (see Fig. #5 below).
(b) BUTT JOINTS -STANDARD CLIPS (see Fig. #6).
(c) BUTT JOINTS -STANDARD STRAPS (see Fig. #7).
(d) LAP JOINTS -The std. lap joi nt is 11/2" to 2" (minimum lap 11/2")
See Fig. #8.

11 OTHER INFORMATION - If bolt holes for mounting to frame or specific margins are required, submit a sketch.

If slotted perforations are required and the arrangement of slots is important, indicate whether the long dimension of the slots is parallel to the length of the screen section or is parallel to the circumference of the screen section.

example of a typical specification for a perforated screen cylinder (1) 3 screen sections   (2) 3/16"   (3) steel   (4) 60" O.D.   (5) x 48" long (6) ½" round perforations   (7) staggered   (8) 3/16" bars (9) 3 segments to the section   (10) butt joints not fastened.

The activities of the Industrial Perforators Association, a national organization, are limited to the establishment of industry standards, the development of new or improved products and methods, technical service, educational and promotional effort, and are primarily designed to improve and extend the uses of perforated metal. A current list of member companies will be furnished on request.
NOTE: For any screens not covered by these specifications, contact your Perforated Screen Plate Manufacturer.