Airtac SC80 Standard Cylinder SC80X840S
The AirTAC Airtac SC80 Standard Cylinder SC80X840S is a genuine double-acting standard air cylinder with a Ø80mm bore and 840mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke840 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X840S
The AirTAC SC80X840S is a double-acting tie-rod cylinder with an 80 mm bore and an 840 mm stroke, pre-fitted with a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors. At 0.5 MPa it generates 2513 N of push force and 2268 N of pull force, rising to a substantial 4523 N at the maximum operating pressure of 0.9 MPa.
This model uses a 25 mm diameter piston rod with an M20x1.5 male thread and PT3/8 ports. The total extended body length is approximately 1022 mm (182 mm body length A plus 840 mm stroke). An adjustable pneumatic cushion decelerates the piston over the final 28 mm of travel, protecting the end caps during high-cycle operation.
Airtac SC80 Standard Cylinder SC80X840S Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X840S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 840 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (approx.) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC80 Standard Cylinder SC80X840S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×840 | 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 SC80 Standard Cylinder SC80X840S Is Used
Long-Reach Part Transfer
The 840 mm stroke and 2513 N push force at 0.5 MPa suit long-distance part transfer stations on automated conveyor lines, where the built-in magnet enables end-of-stroke sensing.
Automated Clamping & Fixturing
Delivers consistent clamping force for large workpieces in CNC fixtures. The adjustable cushion ensures smooth deceleration without jarring the part, even at higher speeds.
Palletising & Sorting Gates
Ideal for actuating diverter gates or pallet stops in logistics hubs. The magnet allows direct feedback to the PLC, confirming gate position for reliable sortation.
Is the Airtac SC80 Standard Cylinder SC80X840S the Right Cylinder?
For applications requiring slightly less force, the 63 mm bore SC63 series delivers 1559 N at 0.5 MPa. If your load demands more power, stepping up to the 100 mm bore SC100 provides 3927 N at the same pressure. Always match the replacement cylinder across five key points: bore, stroke, port thread (PT), mounting accessory, and the magnet option (-S).
At an 840 mm stroke, the 25 mm rod is subject to bending moments under side load. It is critical to guide the load externally with a linear rail or rod guide to prevent rod bearing damage and premature seal wear. For unsupported loads, consider a guided cylinder instead.
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 SC80 Standard Cylinder SC80X840S FAQ
At the standard operating pressure of 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 4523 N.
Yes. The -S suffix in SC80X840S indicates a built-in magnet is installed inside the piston. This allows you to clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the tie-rod barrel to detect piston position.
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