Airtac SC80 Standard Cylinder SC80X771S
The AirTAC Airtac SC80 Standard Cylinder SC80X771S is a genuine double-acting standard air cylinder with a Ø80mm bore and 771mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke771 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X771S
The AirTAC SC80X771S is a double-acting tie-rod cylinder with an 80 mm bore and a 771 mm stroke, delivering a push force of 2513 N at 0.5 MPa and up to 4523 N at 0.9 MPa. Its 25 mm diameter piston rod and 28 mm adjustable air cushion provide reliable end-of-stroke deceleration for mid-to-heavy linear motion tasks.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the barrel for precise position feedback. The standard PT 1/8 port thread and TPU seals suit filtered-air systems operating from -20 to +70 °C.
Airtac SC80 Standard Cylinder SC80X771S Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X771S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 771 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 SC80X771S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×771 | 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 SC80X771S Is Used
Material Handling Pushers
The 80 mm bore and 771 mm stroke provide ample force and reach for diverting boxes or pallets on wide conveyor lines, with sensor feedback confirming each push cycle.
Automated Assembly Jigs
Delivers a controlled 2513 N clamping force at 0.5 MPa for pressing components into housings, while the magnetic piston enables end-of-stroke verification via barrel-mounted sensors.
Logistics Lift Gates
Operates heavy lift gates or stoppers in distribution centres, using the adjustable cushion to manage the 4523 N peak force at 0.9 MPa and the long stroke for full gate travel.
Is the Airtac SC80 Standard Cylinder SC80X771S the Right Cylinder?
Choose the SC80 bore when loads require roughly 2500 N at standard factory pressure; stepping down to an SC63 reduces push force to about 1559 N at 0.5 MPa, while moving up to an SC100 provides 3927 N. For this 771 mm stroke, ensure the rod is protected from side loads—external guides or a self-guided unit prevent rod bending and premature bearing wear.
For a direct replacement, match five key points: 80 mm bore, 771 mm stroke, PT port thread, the built-in magnet (-S), and the basic mounting style. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC80X771S FAQ
At 0.7 MPa operating pressure, the SC80 bore generates a theoretical push force of 3518 N. The pull force on the retract stroke is 2268 N at 0.5 MPa, due to the 25 mm rod reducing the piston area.
No. The SC80X771S is a double-acting cylinder and will drift or drop if pressure is exhausted or the directional valve is centred. To hold a position without live pressure, add an external rod brake or a pilot-operated check valve.
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