Skip Navigation LinksWitness Marks
St. Paul
Foundry
Banner

 Simplifying the Supply Chain For High Knowledge Content Components

GRINDING, PARTING LINES AND GATE AND RISER WITNESSES

Gates, risers, flash, fins and shifts will be removed and adjoining surfaces blended to within the limits specified below. Additional grinding will be performed only when specified. In the absence of specific requirements it will be considered normal to blend excess material into the castings contour within these limits.

Minimizing the requirements for grinding will result in a more economical part. In general, less trimming will be performed on those surfaces that subsequently will be machined.

Casting Weight Witness Marks
Up thru 10 lbs. 1/32 in.
10 - 25 lbs. 3/64 in.
25 - 50 lbs. 1/16 in.
50 - 100 lbs 1/8 in.
Over 100 lbs. Consult Foundry
Banner
Banner
St. Paul Foundry
954 Minnehaha Avenue West
Saint Paul, Minnesota 55104
(651) 488-5567  Fax: (651) 488-0908
Sales: (651) 312-4734 email

100% Manufactured in the USA      Copyright 2017