Introduces a compared example of Air cylinders and ROBO Cylinders.
This is a compared example which uses the calculation results, having same sized Air cylinder and ROBO Cylinder doing the same work.
● Comparing example of the electricity cost(Yearly running cost calculation)
(1) In the case of the Rod-less(Slider) type
| Comparable items | Rod-less type Air cylinder
|
ROBO Cylinder/Slider type
|
|---|---|---|
| Specification and condition | ·Cylinder internal diameter:φ16mm ·Air pressure:0.4MPa ·Air piping internal diameter:φ2.5mm, |
·Actuator:RCP3-SA5C ·Controller:PCON-C(for Pulse Motor) ·Stroke:500mm |
| Compared by having the horizontal transport models to transport work weighing 10kg Daily operating hours:18 hours/day, yearly operating days:240 days/year, cycle time:5 seconds/trip, moving distance:500mm |
||
| Yearly air consumption | 3371.1m3/year (ANR) | - |
| Yearly electricity consumption | (Putting “cost for compressed air=electricity cost”, it amounts to 365.2kWh/year ) |
99.2kWh/year |
| Yearly electricity cost ·Compressed air cost (1m³(ANR)=1.3JPY) ·Electricity cost (1kWh=12JPY) |
4,382JPY/year | 1,191JPY/year |
| Calculation | [Air consumption per cycle]×[Daily actuating cycle]×[Cost of the compressed air]× yearly operating days =0.0010838m3/time × 12,960 times/day × 1.3JPY/m3 × 240 days/year ≒ 4,382JPY/year |
[Electricity consumption per cycle]×[Daily actuating cycle]× [Electricity cost]× ×yearly operating days =0.0319Wh/time × 12,960 times/day × 12JPY/m3 × 240 days/year ≒ 1,191JPY/year |
| Result |  The running cost of an electric cylinder is 28% of an Air cylinder. |
|
| Yearly reduction of the running cost reduction=3,191JPY/year Yearly CO2 reduction = 0.12103t/year (approximate reduction of 72%) (The calculation was done by assuming the “cost for compressed air=electricity cost”, and by having the CO2 emission proportional constant to be 0.000455 t-CO2/kWh) |
||
(2) In the case of Rod type
| Comparable items | Rod type Air cylinder
|
ROBO Cylinder/Rod type
|
|---|---|---|
| Specification and condition | ·Cylinder internal diameter:φ32mm ·Air pressure:0.4MPa ·Air piping internal diameter:φ2.5mm, |
·Actuator:RCP2-RA6C ·Controller:PCON-C(for Pulse Motor) ·Stroke:100mm |
| Compared by having the horizontal transport models (with guides) to transport work weighing 20kg Daily operating hours:18 hours/day, yearly operating days:240 days/year, cycle time:5 seconds/trip, moving distance:100mm |
||
| Yearly air consumption | 2433.1m3/year (ANR) | - |
| Yearly electricity consumption | (Assuming that the “cost for compressed air=electricity cost”, it amounts to 263.5kWh/year ) |
103.3kWh/year |
| Yearly electricity cost ·Compressed air cost (1m³(ANR)=1.3JPY) ·Electricity cost (1kWh=12JPY) |
3,163円/year | 1,239円/year |
| Calculation | [Air consumption per cycle]×[Daily actuating cycle] ×[Cost of the compressed air]× yearly operating days =0.0007823m3/time × 12,960 times/day × 1.3JPY/m3 × 240 days/year ≒ 4,382JPY/year |
[Electricity consumption per cycle]×[Daily actuating cycle]× [Electricity cost] ×yearly operating days =0.0332Wh/time× 12,960 times/day 12JPY/m3× 240 days/year ≒ 1,239JPY/year |
| Result |  The running cost of an electric cylinder is 40% of an Air cylinder. |
|
| Yearly running cost reduction amount=1,924JPY/year Yearly CO2 reduction amount =0.072891t/year (approximate reduction of 60%) (Assuming that the “cost for compressed air=electricity cost”, and the calculation was done by having CO2 emission proportional constant to be 0.000455 t-CO2/kWh) |
||
※Air cylinder specifications(cylinder internal diameter, etc.) and ROBO Cylinder specifications(motor types, etc.) differs based on the models selected for the work. The air consumptions, electricity consumptions differs based on specifications(characteristics), usable condition, conversion proportional constants, device specifications for each models, and the value fluctuates based on the actual device to be used. The calculated result values are not to reassures you for the reduction effect.
