Tolomatic presentation understanding the application process
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ELECTROMATE
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THE APPLICATION PROCESS
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What information is critical when specifying an electric
system?
• Load
• Maximum Speed
• Stroke
• Moment Loads
• Acceleration/Deceleration
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THE APPLICATION PROCESS ELECTROMATE
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OTHER FACTORS TO CONSIDER
• Actuator position • Environment
– Vertical – Contaminants
– Horizontal • Corrosive
• Abrasive
• Carrier position – Temperature
– Top • Precision
– Bottom – Accuracy
– Side – Repeatability
• Available space
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LOAD
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• Carrying
– The total weight to be supported by the actuator alone
• Thrust
– The linear force required to move the load or perform the action
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THE APPLICATION PROCESS
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Load Decisions
Rodless Style Rod Style
Designed to move and carry loads Designed to move guided loads
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THE APPLICATION PROCESS
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Load Decisions
• Rodless Actuators
– 1 of 4 load carrying designs
• B3W, SLS, BCS, TKS
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THE APPLICATION PROCESS
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Load Decisions
B3 Style LS Style
B2 Style TK Style
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THE APPLICATION PROCESS
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Load Decisions
• Actuator Thrust
– The linear force required to move the load or perform
the action (rod or rodless)
– Applications
• Punch or Press Applications
• Externally guided applications
– Motor
– May need gearhead or reduction to supply
adequate force
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THE APPLICATION PROCESS
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• Max Thrust
– Thrust/Load affects whether a belt or screw drive is selected
240
TKB50
Belt vs Screw
250
B3W15
Max Thrust (lbs.)
B3S15 850
300
BCS15 850
300
0 100 200 300 400 500 600 700 800 900
BCS15 B3S15 B3W15 TKB50
BELT 250 240
BALL 850 850
ACME 300 300
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THE APPLICATION PROCESS
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Speed Decisions
• Maximum Speed
– The maximum rate at which the load is moved (inches per
second)
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THE APPLICATION PROCESS
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Speed Decisions
• Belt Drive or Screw Drive?
Belt Drive Screw Drive
• Max speed 200 • Max speed varies with
inches/sec. • Screw pitch
• Screw length
• Nut design
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THE APPLICATION PROCESS
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Speed Decisions
• Maximum speed and stroke length is limited by screw wobble
(critical speed)
– As the stroke length increases the distance between bearing supports increases
causing a “jump rope” effect within the screw
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THE APPLICATION PROCESS
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Speed Decisions
• Motor
– May exceed maximum RPM limit
• Along with desired speed, the screw pitch and any reductions (gearheads or
pulleys) affect the motor RPM.
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THE APPLICATION PROCESS
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• Stroke
– The maximum distance of travel
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Stroke Decisions
• Rodless Style • Rod Style
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THE APPLICATION PROCESS
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Stroke Decisions
• Maximum speed and stroke length is limited by screw wobble
(critical speed)
– As the stroke length increases the distance between bearing supports increases
causing a “jump rope” effect within the screw
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MOMENT
LOAD
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THE APPLICATION PROCESS
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Moment Load Decisions
• Moment Load
– The force the load exerts on the actuator due to
• Gravity
• Inertia
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Moment Load Decisions
Mz - (yaw)
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Moment Load Decisions
Mx - (roll)
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Moment Load Decisions
My - (pitch)
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Accel/Decel Decisions
• Acceleration/Deceleration
– The maximum rate at which the actuator reaches its speed
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ELECTROMATE
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THE APPLICATION PROCESS
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Accel/Decel Decisions
• The Accel/Decel rate impacts
moment loads
Dynamic moment load
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THE APPLICATION PROCESS
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System Precision
• Accuracy
– How close you come to the target, though not necessarily
the same position
• Repeatability
– How close to the same location, even if not close to the
target
• Resolution
– Smallest increment of movement
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ELECTROMATE
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THE APPLICATION PROCESS
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Other factors to consider
• Actuator position
– Vertical
– Horizontal
32. Sold & Serviced By:
ELECTROMATE
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THE APPLICATION PROCESS
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Other factors to consider
• Actuator position
– Vertical
– Horizontal
• Carrier position
– Top
– Bottom
– Side
33. Sold & Serviced By:
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
THE APPLICATION PROCESS
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sales@electromate.com
Other factors to consider
• Environment
• Actuator position
– Contaminants
– Vertical • Corrosive
– Horizontal • Abrasive
• Carrier position – Temperature
– Top • Precision
– Bottom – Accuracy
– Repeatability
– Side
• Available space
