What is the conveyance process?
A conveyance process is the process of moving products or parts from one production stage to the next.
As the number of production processes increases, the number of parts and places that need to be transported increases, so the efficiency of production will change due to the quality of the transport process.
The key points in selecting the actuator required for the transfer process are "positioning accuracy" and "weight of the workpiece.
Air cylinders are strong enough to handle heavy workpieces weighing 100 kg or more.
Electric actuators are also easier to control the movement and can improve positioning accuracy.
Key Points for Selection
"Positioning accuracy" and "Workpiece weight"
The type of actuator to be selected for the transfer process depends on whether priority is
given to "positioning accuracy" or "workpiece weight.
If you want to transport heavy objects weighing 100 kg or more, an air cylinder is recommended,
while an electric actuator is recommended if precise positioning or multiple movement points are required.
For transporting heavy objects Air cylinder
To obtain positioning accuracy Electric actuator
Electric actuators with easy positioning are recommended
Easy positioning is considered better for conveyance processes.
Electric actuators enable high-precision positioning in the program settings and easy multi-point positioning.
Acceleration/Deceleration and effective speed can be set, so transport and shock absorbing transport are possible at stable speeds.
CKD electric actuators offer a wide variety of control methods for easy selection.
Air cylinders are recommended for fast movement of heavy workpieces
Air cylinders are recommended when the weight of the workpiece exceeds 100 kg. Electric actuators may slow down the transfer speed or may not be able to transfer the workpiece when it weighs more than 100 kg.
CKD's air cylinders support long, high-speed travel and vertical transfer
Air cylinders are adept at wide width, high-speed travel, and vertical transport.
Air cylinders have the same payload capacity for vertical transfers.
Comparison of Air Cylinder and Electric Actuators
Let's compare the cost and performance of actual models of CKD's air cylinders and electric actuators.
Model No. to compare
Air cylinder
SRL3-00-20B-500-M2H-D-A
Electric actuator
EBS-08GE-200500NBN-CS03
Comparison conditions
Comparison by Cost
Since the operating life of the Electric EBS Series is long,
the number of replacements can be reduced.
■ Calculation of costs
Initial product price, product or parts price at the time of replacement, and electricity cost during operation
Electricity cost during operation: 22 yen per 1kwh.
Air is calculated by converting air consumption into electric power and combining it with the electric power consumption of solenoid valves and cylinder switches.
Labor cost for maintenance is not included.
*Replacement time is calculated based on test data under our specified conditions and is not guaranteed.
Comparison by Actuator Dimensions
Air is compact, but may require an external guide.
For Electric Motion, the outer rail guide is built in.
Comparison by Positioning time
When moving between two points, the Air SRL3 Series is advantageous.
Comparison by CO2 Emissions
Even if the number of operations per minute increases, Electric CO2 emissions are kept low.
*CO2 emissions vary depending on the stroke.
■ Calculation of CO2 Emissions
[Conditions] Annual operating days: 250 days Operation time: 8 hours/day Air pressure: 0.5MPa (clamp: 0.4MPa, conveying: 0.25MPa)
CO2 emissions converted from annual power consumption (kg-CO2/year) Annual electric power consumption (kWh) × 0.000406* × 1000*
*CO2 emission factor: Ministry of the Environment's publicized emission factors by electric utility, R2 fiscal year results Chubu Electric Power Mirise CO2 emission coefficient *1000:kg conversion
Air is calculated by converting air consumption into electric energy and adding the power consumption of solenoid valves and cylinder switches.
CKD Products
This electric actuator can be used safely in various environments and processes. Variations for dusty environments, low-dust environments, rechargeable battery, and food manufacturing processes are available. We also offer custom-made actuators to meet your specific requirements.
Electric actuator slider EJSG Series
Click here for product information Click here for product informationContact CKD for product selection
We respond to a wide range of needs, from product proposals to support, based on customer requests.
Please feel free to contact us if you have any problems in selecting an actuator.
Recommended drive method by process
Handling Process
Air cylinders are recommended if you want to lighten the hand, while electric actuators are recommended if you do not want to give impact to fragile workpieces.
Clamping Process
The air cylinder is recommended for quick operation, and the electric actuator is recommended for shockless clamping
Press Fitting Process
Air cylinders are recommended for their small size and high pressing force, electric actuators are recommended for their press fitting control.
Oscillating Process
Air cylinders are recommended for their high-speed movement, and electric actuators are recommended for positioning control, such as multi-point positioning
Air and Electric Motion: The Best Mix
We have prepared a demo unit that reproduces five processes, including handling,
so that you can actually see how we propose to use both Air and Electric Motion.