Stroke Control - The ram travel of the press may be controlled in a variety of ways. Most hydraulic presses are standard with Adjustable Retract Limit Switches to limit the retract distance of the ram (also know as the Up Limit Position). This can shorten cycle times by only utilizing the required stroke for part loading and unloading. Other adjustable limits may include: Slow Down Limit for deceleration from Fast Speed to Slow Speed; Bottom Stop Position and/or Bottom Stop Pressure etc.
Shut Height - The distance between the bed bolster & the raw
bolster when the raw is fully extended. This is also known as closed Height.
Stroke - The amount of possible ram travel. Stroke is the total
distance that the ram can travel, from full extension to full retraction.
Shut Height - The distance between the bed bolster and the ram
bolster when the ram is fully extended. This is also commonly known as the
Closed Height. As standard, this dimension is usually within "0.25"
due to assembly processes. For precision shut height requirements, consult
Scuffing - A wear mechanism involving microwelding of asperities on
contacting surfaces under conditions of highloading and high relative
velocities. This microwelding is normally followed by rupture of the welds,
roughening and increasing friction.
Slab Side Hydraulic Press or Straight Side Hydraulic Press -
Typically this style of hydraulic press uses solid side construction to
guide press and platen operation in larger applications. Slab style
construction keeps press components properly aligned, within specified
tolerances, and minimizes deflection.