Airtac SC80 Standard Cylinder SC80X777S
The AirTAC Airtac SC80 Standard Cylinder SC80X777S is a genuine double-acting standard air cylinder with a Ø80mm bore and 777mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke777 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X777S
The SC80X777S is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, featuring an 80 mm bore and a non-standard 777 mm stroke. 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, contactless position feedback without external brackets.
At 0.5 MPa operating pressure, it generates a push force of 2513 N and a pull force of 2268 N via its 25 mm diameter piston rod. The cylinder body has a length A of 182 mm, and with the 777 mm stroke, the total extended length is approximately 959 mm. It uses a PT1/8 port, an M20x1.5 rod thread, and features an adjustable air cushion of 28 mm at each end to decelerate the piston smoothly.
Airtac SC80 Standard Cylinder SC80X777S Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X777S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 777 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 SC80X777S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×777 | 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 SC80X777S Is Used
Long-Reach Material Transfer
The 777 mm stroke and 2513 N push force at 0.5 MPa are well-suited for transferring large panels or boxes between distant conveyor lines, with the built-in magnet enabling end-of-stroke verification.
Automated Welding Fixture Clamping
Provides powerful, consistent clamping for large weldments in automotive or structural fabrication jigs, where the long stroke allows the clamp arm to retract fully for part loading.
Vertical Lift Gate Actuation
Ideal for raising and lowering heavy industrial dock gates or machine guards. The adjustable cushioning manages the high inertia of the gate at the end of the 777 mm travel.
Is the Airtac SC80 Standard Cylinder SC80X777S the Right Cylinder?
For applications requiring slightly less force, stepping down to a 63 mm bore provides 1559 N of push force at 0.5 MPa. If higher force is needed, the 100 mm bore delivers 3927 N at the same pressure. The 777 mm stroke is non-standard for the 80 mm bore, exceeding the standard maximum of 1500 mm, and is a made-to-order item.
Given the long 777 mm stroke, careful consideration of side loads is critical. The 25 mm rod can experience bending under lateral forces when fully extended. It is strongly recommended to use an external linear guide or rod support to prevent premature seal and bearing wear. For a direct replacement, match the 80 mm bore, 777 mm stroke, PT1/8 port thread, the built-in magnet (-S), and the basic (no bracket) 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 SC80X777S 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 1.0 MPa, the theoretical push force reaches 5026 N (513 kgf).
The 80 mm bore is standard, but the 777 mm stroke is a non-standard, made-to-order length. It is a genuine AirTAC SC tie-rod cylinder, which is shorter than an ISO 15552 profile and is not dimensionally interchangeable with those standards. It replaces any AirTAC SC80 cylinder with the same bore, stroke, PT port, and magnet option.
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