Airtac SC80 Standard Cylinder SC80X390STC
The AirTAC SC80 Standard Cylinder SC80X390STC is a genuine double-acting standard air cylinder with a Ø80mm bore and 390mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke390 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SC80 Standard Cylinder SC80X390STC
The AirTAC SC80X390STC is a double-acting single-rod pneumatic cylinder delivering 2513 N of push force at 0.5 MPa, scaling to 4523 N at the maximum operating pressure of 0.9 MPa. Its 390 mm stroke and 25 mm diameter piston rod suit medium-force linear tasks where the cylinder body pivots during operation.
This model features a built-in magnet (S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, enabling reliable end-of-stroke detection without external brackets. The TC centre trunnion mount (F-SC80TC) ships with the TCM1 bracket, allowing the cylinder to pivot around its centre of gravity, which is ideal for swinging loads. With a 28 mm adjustable air cushion, it decelerates the piston smoothly, reducing end-cap impact and noise.
Airtac SC80 Standard Cylinder SC80X390STC Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X390STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 390 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 SC80X390STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×390 | 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 SC80X390STC Is Used
Pivoting Conveyor Gate
The centre trunnion mount allows the cylinder to swing freely, making it perfect for actuating a diverter gate on a conveyor line where the cylinder body must pivot as the gate opens and closes.
Clamping & Welding Fixtures
With 4523 N of clamping force at 0.9 MPa and magnetic piston sensing, this cylinder provides precise, repeatable clamping for automated welding or assembly fixtures that require position feedback.
Material Handling Tilter
Use the SC80X390STC to tilt bins or pallets. The trunnion mount handles the arc of motion, and the adjustable cushioning absorbs the kinetic energy of the tilting mass for a smooth stop.
Is the Airtac SC80 Standard Cylinder SC80X390STC the Right Cylinder?
For a step up in force, the SC100 bore provides 3927 N at 0.5 MPa, while stepping down to the SC63 bore offers 1559 N. At a 390 mm stroke, ensure side loads are minimised; long unsupported strokes on a 25 mm rod can experience bending under lateral forces—consider an external guide or a guided cylinder if the load is not purely axial. To match this exact configuration for replacement, verify five points: 80 mm bore, 390 mm stroke, PT port thread, centre trunnion (TC) mounting with the TCM1 bracket, and the built-in magnet for sensor compatibility.
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 SC80X390STC 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.
No. The SC80X390STC is a double-acting cylinder and will not hold its position if air pressure is lost or the directional valve is centred. The adjustable air cushion only decelerates the piston at the end of the stroke; it is not a locking or holding brake. For load holding, you must add an external rod lock or a pilot-operated check valve.
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