Replacement model guide
SMC RB0604 replacement option: EN8x6 comparison
Compare published SMC RB0604 ratings with the EKD EN8x6 candidate, including energy, stroke, mounting differences and inquiry checks.
EN8x6 can be evaluated as a replacement option because it meets the compared energy, hourly-duty and stroke thresholds. Mounting, velocity, force, cycle and machine conditions must still be confirmed.
Published parameter comparison
The table compares published catalog values. A higher rating can identify a performance candidate, but it does not remove mounting, force, reset, environment or application checks.
| Parameter | SMC RB0604 | EKD EN8x6 | Assessment |
|---|---|---|---|
| Energy per cycle | 0.5 J (Nm) | 4 Nm/C | Meets reported rating A catalog rating comparison only; effective mass, drive force and deceleration remain application checks. |
| Energy per hour | 2,400 J/h | 6,215 Nm/h | Meets reported rating Confirm the actual cycle rate and thermal conditions. |
| Stroke | 4 mm | 6.4 mm | Meets reported rating Confirm usable travel, stop position and reset clearance. |
| Body thread | M6 x 0.75 | M8 x 1.0 | Different — confirm Different threads require a mounting change or adapter review. |
| Impact velocity | 0.3–1.0 m/s | 0.08–6 m/s | Inquiry confirmation required Compare the real operating point, not only the published maximum. |
| Published force limit | 150 N | 890 N max impact force | Inquiry confirmation required The manufacturers may define force ratings differently; verify the machine limit and deceleration curve. |
What must be matched and confirmed
- Actual moving mass, impact velocity and drive force
- Mounting thread, stop geometry and available envelope
- Cycle rate, return time and permissible deceleration
- Temperature, corrosion, alignment and side loading
Continue with EKD review
Open the EKD candidate, then use the matching tool or send the original nameplate, drawing and application data. EKD will confirm the remaining differences before ordering.
Sources and boundary
Original product source: https://www.smcworld.com/catalog/en/actuator/RB-E/7-5-3-p1295-1317-RB_en/data/7-5-3-p1295-1317-RB_en.pdf
EKD candidate source: https://www.vibroabsorber.com/products/shock-absorbers/en-non-adjustable-shock-absorbers?model=EN8x6
Brand names and model numbers identify the user's existing product for comparison. EKD does not claim the original brand's certification, design ownership or guaranteed interchangeability. Final selection requires application confirmation.