Hydraulic Consulting, Hydraulic Help, Hydraulic Blog, Hydraulic Help Blog, Bob Sheaf

Hydraulic Help Blog, Bob Sheaf, Hydraulic Training, Online Hydraulic Training,

A plating mill receives 6-8 ft. wide coiled steel and chemically treats it with a process similar to galvanizing.  The rolls have about a 4-6 ft. OD and are unraveled like paper towels.  The loose end of a sheet is fed into a pair of pinch rolls that direct the steel through several stations that wash, rinse, dry, and heat it.  After it is coated and treated, the steel is then rolled back into 4-6 ft. coils and shipped to automotive stamping plants.  An impressive mill like thid can be a city block long.

 

Feeding a new sheet into the pinch rolls and subsequent stations is time consuming.  To reduce this bottleneck, plant pe...

As the economy started improving after the recent downturn, several hydraulic distributors were adding new people that sometimes got in over their head designing circuits for their customers.  We received a call from a new salesman asking for our help in solving problems he was having with a system he designed and installed.  He sent the circuit (shown below) to us for review and comment.  The problems he was experiencing were as follows:

 

  • When debugging the system, the customer blew a 25 gpm spin-on filter element off its filter head.  He bypassed it for the time being.

 

  • The safety ISO-3 “solenoid dump valve” for the...

Please reload

Featured Posts

Meter-Out Pressure Intensification Cures

July 9, 2014

1/1
Please reload

Recent Posts

March 19, 2015

Please reload

Archive
Please reload

Search By Tags