All posts by: Jennifer Erdman

About Jennifer Erdman

Forces and Calculations are Key to Sizing Core Pull Hydraulic Cylinders

Hydraulic cylinders are commonly used on injection molds to actuate movable core. When considering  “How to Size” a hydraulic cylinder for moving the core or preloading the core, PFA recommends to review three positions – initial breakaway, movement during stroke, and end position.  After determining the limiting condition, a proper size may be determined.  PFA’s […]

Hydraulic Locking Cylinders, Plastic & Injection Molding

PFA, Inc. Purchases California-Based American Aerostar

PFA, Inc. (www.pfa-inc.com) purchased American Aerostar (www.astar.com) in 2005 and continues to manufacture all QMC product lines, including Hydra-Jaws™ QMC systems, Hydra-Latch™ Quick Knockout (KO) Systems and the entire line of Quick Die Change products, including Hollow Cylinder Clamps (NC-205, NC-205L, NC-200, NC-200L, NC-201, NC-201L), Ledge “Rocker” Clamps (RC-425, RC-425L, RC-428, RC-428L, RC-126, RC-126L, RC-661, […]

General News, Metal Stamping, Plastic & Injection Molding