We currently have 23 machines used in the manufacturing of envelopes consisting of the following:

  • 3 AMC cutting machines :  These machines hold 8 rolls of paper which are fed through the press
    resulting in diagonal seam blanks which are then transferred tot he converting department and fed
    through the converting machines
  • 2 PHP cutting machines:  Diagonal seam blanks are cut out of a sheet of paper.
  • 1 HP cutting machine:  Diagonal seam blanks are cut out of sheets of paper manually.
  • 5 High Speed RA, Combination #1converting machine:
                      1.  Blank fed
                      2.  Diagonal Seam
                      3.  Prints Flexo in-line 2/1
                      4.  Window patching
  • 1 High speed RA WA Combination #1 converting machine:
                      1.  Blank fed
                      2.  Diagonal seam & 2 side seam
                      3.  Prints Flexo in-line 2/1
                      4.  Window patching
  • 2 High speed RA combination #6 converting machine:
                      1.  Blank fed
                      2.  Diagonal seam
                      3.  Converts #10 regulars only
  • 1 High speed RW converting machine:
                      1.  Blank fed
                      2.  Diagonal seam
                      3.  Window patching
                      4.  Converts #10 standard windows only
  • 2 WR converting machines:
                      1.  Blank fed
                      2.  Diagonal seam & remittance style
                      3.  Converts #9 regulars & 6-1/2 remittance only
  • 1 BOE (Booklet/Open End) Combination #4 converting machine:
                      1.  Roll fed
                      2.  Side seam Booklets & center seam catalogs up to 12 x 15-1/2
                      3.  Prints Flexo in-line 2/1
                      4.  2 window patching units
  • 1 MOH MOWconverting machine:
                      1.  Roll fed
                      2.  Side seam Booklets & center seam Catalogs up to 12 x 15-1/2
                      3.  Converts regulars only
  • 1 Jet Press: Already folded envelopes are fed through for a higher quality finish
  • 1 Cheetah:  Already folded envelopes are fed through for either Latex or Peel to Seel (strip) applications.
SEABOARD ENVELOPE CO., INC.
Makers of Quality Envelopes Since 1939
Machine List
~15601 Cypress St, Irwindale, California 91706 ~ (626) 960-4559 ~ Fax (626) 337-6526~