Airtac SC80 Standard Cylinder SC80X680STC
The AirTAC Airtac SC80 Standard Cylinder SC80X680STC is a genuine double-acting standard air cylinder with a Ø80mm bore and 680mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke680 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X680STC
The AirTAC SC80X680STC is a double-acting pneumatic cylinder delivering 2513 N push force at 0.5 MPa (4523 N at 0.9 MPa). Its 680 mm stroke is well within the 1500 mm maximum for the 80 mm bore, making it a robust choice for medium-to-long linear movements in material handling and automation.
This model features a 25 mm diameter piston rod with M20x1.5 male threads and PT3/8 ports. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for piston position detection. It is configured with a centre trunnion (TC) mount, including the TCM1 bracket (F-SC80TC), ideal for pivoting applications where the cylinder body needs to swing.
Airtac SC80 Standard Cylinder SC80X680STC Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X680STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 680 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 SC80X680STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | 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 SC80 Standard Cylinder SC80X680STC Is Used
Conveyor Diverter Gates
The 680 mm stroke and centre trunnion mount allow the cylinder to pivot and actuate large diverter gates on packaging or sorting conveyors, with sensor feedback confirming gate position.
Welding Fixture Clamping
Provides over 4500 N of clamping force at full pressure. The trunnion mount lets the cylinder body align with the fixture's arc, while the magnet confirms clamp engagement.
Agricultural Implement Control
Controls chute deflectors or hopper doors on farm machinery. The TPU seals handle dusty, cold conditions (-20 to +70°C), and the robust tie-rod design withstands vibration.
Is the Airtac SC80 Standard Cylinder SC80X680STC the Right Cylinder?
Select the SC80 bore when your application requires between 2513 N and 4523 N of force. If your load is lighter, stepping down to the SC63 bore saves space and air consumption, offering 1559 N at 0.5 MPa. For higher force demands, the SC100 bore provides 3927 N at the same pressure.
With a 680 mm stroke, ensure the rod is adequately supported against side loads. Long, unsupported strokes on a 25 mm rod can experience bending under lateral forces; use an external guide rail or a guided cylinder for off-centre loads. For direct replacement, match bore (80 mm), stroke (680 mm), PT3/8 ports, centre trunnion mount (TC), and the built-in magnet (-S).
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 SC80X680STC 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 at 1.0 MPa is 513 kgf.
Yes, if the original is an AirTAC SC tie-rod cylinder or a compatible tie-rod design. Ensure the replacement matches the 80 mm bore, 680 mm stroke, PT3/8 ports, centre trunnion (TC) mount, and has a built-in magnet for sensors. The SC series is shorter than ISO 15552 cylinders and is not dimensionally interchangeable with them.
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