Airtac SC80 Standard Cylinder SC80X635S
The AirTAC Airtac SC80 Standard Cylinder SC80X635S is a genuine double-acting standard air cylinder with a Ø80mm bore and 635mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke635 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X635S
The SC80X635S is a double-acting tie-rod cylinder delivering a push force of 2513 N at 0.5 MPa and up to 4523 N at 0.9 MPa operating pressure. With an 80 mm bore and a 635 mm stroke, it uses a 25 mm diameter piston rod and PT3/8 ports, providing a robust linear drive for mid-range industrial tasks.
The built-in magnet (-S suffix) allows direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the barrel for non-contact position sensing. Its adjustable air cushion (28 mm length) decelerates the piston smoothly, and the TPU seals support an operating temperature range of -20 to +70 °C.
Airtac SC80 Standard Cylinder SC80X635S Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X635S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 635 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 SC80X635S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×635 | 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 SC80X635S Is Used
Conveyor Diverter
The 635 mm stroke and 2513 N push force reliably shift packages or pallets between conveyor lanes, with the built-in magnet enabling end-of-stroke confirmation via CMSG sensors.
Material Pusher
Pushes heavy workpieces onto a machining centre infeed. The adjustable cushion absorbs the kinetic energy of the moving load at the end of the 635 mm travel.
Lift-Assist Table
Acts as a tilt or lift actuator on a scissor table. The 80 mm bore provides ample force at standard shop air pressure to handle unevenly distributed loads.
Is the Airtac SC80 Standard Cylinder SC80X635S the Right Cylinder?
For higher force, step up to the SC100 bore (3927 N at 0.5 MPa); for a lighter, more compact solution, the SC63 bore provides 1559 N at 0.5 MPa. This 635 mm stroke is within the standard range for the 80 mm bore (max 1500 mm), so no special lead time applies.
At this stroke length, avoid direct side loads on the rod. If the load is not guided externally, the 25 mm rod can experience bending moments, leading to premature bearing wear. Use an external guide rail or consider a guided cylinder. For a drop-in replacement, match the 80 mm bore, 635 mm stroke, PT3/8 port thread, built-in magnet, and basic mounting configuration.
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 SC80X635S FAQ
At 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 reaches 4523 N. The theoretical maximum force at 1.0 MPa is 513 kgf.
Yes. The -S suffix indicates a built-in magnet in the piston. This allows you to clamp compatible AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the tie-rod barrel to detect piston position without additional brackets.
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