Airtac SC50 Standard Cylinder SC50X680SH
The AirTAC SC50 Standard Cylinder SC50X680SH is a genuine double-acting standard air cylinder with a Ø50mm bore and 680mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke680 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SC50 Standard Cylinder SC50X680SH
The SC50X680SH is a double-acting pneumatic cylinder with a 50 mm bore and a 680 mm stroke, built on the compact AirTAC SC tie-rod platform. At the standard 0.7 MPa operating pressure it generates 1374 N of push force, and at the 0.9 MPa maximum it reaches 1767 N, making it a capable mid-range actuator for pressing, clamping and lifting tasks.
This specific model includes a built-in magnet (-S) for mounting CMSG/DMSG/EMSG sensors directly on the barrel, and the -H suffix specifies Viton (FKM) seals that shift the operating temperature range to 0–150 °C. The 20 mm diameter piston rod, M16x1.5 rod thread, and 21 mm adjustable air cushion at each end are standard for the 50 mm bore. With a body length A of 150 mm, the total extended length is approximately 830 mm.
Airtac SC50 Standard Cylinder SC50X680SH Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X680SH |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 680 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC50 Standard Cylinder SC50X680SH
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×680 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SC50 Standard Cylinder SC50X680SH Is Used
High-Temperature Actuation
With Viton seals rated to 150 °C, this cylinder is suited for hot environments such as autoclave door actuation, drying ovens, or foundry equipment where standard seals would degrade.
Mid-Stroke Part Transfer
The 680 mm stroke and 1767 N push at 0.9 MPa move parts between conveyor lanes or into packaging stations. The built-in magnet enables end-of-stroke sensing without external brackets.
Press & Clamp Operations
Delivers controlled clamping force for gluing, welding, or light assembly presses. The adjustable air cushion protects tooling at the end of the 680 mm travel.
Is the Airtac SC50 Standard Cylinder SC50X680SH the Right Cylinder?
Choose the SC50 bore when your application needs around 1000 N of push force at 0.5 MPa (982 N). If you require more force, step up to the 63 mm bore which delivers 1559 N at the same pressure; for a lighter, more compact solution the 40 mm bore provides 628 N. This 680 mm stroke is within the 1200 mm maximum standard stroke for the 50 mm bore.
For a stroke of this length, side-loading must be managed carefully—the 20 mm rod can bend if the load is not guided linearly. Use an external guide rail or a rod-alignment coupler, and consider a guided cylinder if the load is consistently off-axis. When replacing an existing cylinder, match five points: 50 mm bore, 680 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the Viton seal material (-H).
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC50 Standard Cylinder SC50X680SH FAQ
At 0.5 MPa the push force is 982 N and the pull force is 825 N. At 0.7 MPa push reaches 1374 N, and at the maximum operating pressure of 0.9 MPa it delivers 1767 N. The theoretical maximum at 1.0 MPa is 2000 N (200 kgf), but 1.0 MPa exceeds the rated operating range.
Yes. The -S suffix means a magnet is built into the piston, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors clamp directly onto the barrel tie-rods. The Viton seals (-H) do not affect sensor compatibility.
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