NEWS
On this page you will find : 
   Upgrades for : Stetson Ross - Newman - Coastal - Yates - Gilbert - USNR  
  • Knife Marks per Inch Chart
  • Misc. Formulas
  • More coming
Formulas and Charts
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Fluid Power Formulas
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Knife Marks per Inch
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Torque and horsepower relations:
T = HP x 5252/ RPM
HP = T x RPM / 5252
RPM = HP x 5252/ T
Torque values are in foot pounds


Hydraulic (fluid power) horsepower:
HP = PSI x GPM /1714
PSI is gauge pressure in pounds per square inch, GPM is oil flow in gallons per inches


Velocity of oil flow in pipe:
V = GPM x 0.3208 / A
V is oil velocity in feet per second. GPM is flow in gallons per minute, A is inside area of pipe in square inches


Circle formulae:
Area = Pi x Radius squared or, Pi x D / 4
Circumference = Pi x R x 2, or Pi x D
D is diameter 
R is radius


Heat equivalent of fluid power
BTU per hour = PSI x GPM x 1.5


Hydraulic cylinder piston travel speed
S = CIM / A
S is piston travel speed, inches per minute, CIM is oil into cylinder, cubic inches per minute, A is piston area in square inches


Side load on pump or motor shaft
F = (HP x 63024) / (RPM x R)
F is the side load in pounds against shaft; R is the pitch radius, in inches, of sheave on pump shaft; HP is driving power applied to shaft


Relationship between displacement and torque of a hydraulic motor:
T = D x PSI / 24 x Pi
T is torque in foot Ibs, D is displacement in cubic inches per revolution, PSI is pressure difference across motor, Pi  = 3.1416


   Upgrades for : Stetson Ross - Newman - Coastal - Yates - Gilbert - USNR  

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Overhead Tensioning
&
Positioning Kits

Newman,Coastal,Stetson Ross,Woods, and more
Improve the performane of your planer
(541) 915-8323
New Planer Kits
Making older Feedtable
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 New Cobra 
Feed Table Stands
Specialists in planing mill performance Improvement
It only takes one to see a difference!
  Did You Know?
The Difference between 75% uptime and 95% uptime
with 10ft boards at
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loss in
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  A pineapple  designed to Perform ! 
 The Cobra 
Pineapple
Specialists in planing mill performance Improvements
It's about Efficiency!
Cobra Technical Services
  Click here   
     Cobra Technical Services are specialists in high speed  planers and feed tables including: Newman, Stetson Ross, Coastal, Yates, Gilbert and Woods.  We have an extensive experience with improving the performance in planer tensioning and positioning, automatic tensioning positioning systems, planer hydraulic or electric drives, Top head side head servo positioning systems, feed table hydraulic or electric drives, and feed table tensioning systems . If  you are interested in improving the performance of your equipment give us a call! We hope you find this website information valuable, and we ask for your suggestions to help make this site even more valuable.

     Cobra Technical Services are specialists in high speed  planers and feed tables including: Newman, Stetson Ross, Coastal, Yates, Gilbert and Woods.  We have an extensive experience with improving the performance in planer tensioning and positioning, automatic tensioning positioning systems, planer hydraulic or electric drives, Top head side head servo positioning systems, feed table hydraulic or electric drives, and feed table tensioning systems . If  you are interested in improving the performance of your equipment give us a call! We hope you find this website information valuable, and we ask for your suggestions to help make this site even more valuable.

Cobra Technical Services LLC 
435 HAZEL COURT, EUGENE, OR  97401
(541) 915-8323   FAX (541) 484-7507    
E-mail bjenson@cobratechservices.com
 
     Cobra Technical Services are specialists in high speed  planers and feed tables including: Newman, Stetson Ross, Coastal, Yates, Gilbert and Woods.  We have an extensive experience with improving the performance in planer tensioning and positioning, automatic tensioning positioning systems, planer hydraulic or electric drives, Top head side head servo positioning systems, feed table hydraulic or electric drives, and feed table tensioning systems . If  you are interested in improving the performance of your equipment give us a call! We hope you find this website information valuable, and we ask for your suggestions to help make this site even more valuable.

     Cobra Technical Services are specialists in high speed  planers and feed tables including: Newman, Stetson Ross, Coastal, Yates, Gilbert and Woods.  We have extensive experience with improving the performance in planer tensioning and positioning, automatic tensioning positioning systems, planer hydraulic or electric drives, Top head side head servo positioning systems, feed table hydraulic or electric drives, and feed table tensioning systems . If  you are interested in improving the performance of your equipment give us a call! We hope you find this website information valuable, and we ask for your suggestions to help make this site even more valuable.

Cobra Technical Services LLC 
435 HAZEL COURT, EUGENE, OR  97401
(541) 915-8323   FAX (541) 484-7507    
E-mail bjenson@cobratechservices.com

A pineapple  designed to Perform ! 
The Cobra Pineapple
Specialists in planing mill performance Improvement
It's about Efficiency!
Cobra Technical Services