Airtac SC80 Standard Cylinder SC80X400STC
The AirTAC SC80 Standard Cylinder SC80X400STC is a genuine double-acting standard air cylinder with a Ø80mm bore and 400mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke400 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
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About the Airtac SC80 Standard Cylinder SC80X400STC
The SC80X400STC is an 80 mm bore, 400 mm stroke double-acting pneumatic cylinder delivering a push force of 2513 N at 0.5 MPa (up to 4523 N at 0.9 MPa). Its 25 mm diameter piston rod and 28 mm adjustable air cushion are sized for reliable mid-range automation tasks, providing smooth deceleration even under frequent cycling.
This model comes factory-equipped with a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and a centre trunnion mount (TC) including the TCM1 bracket (F-SC80TC). The trunnion allows the cylinder to pivot, making it ideal for swinging or articulating machine sections. The standard PT port thread and TPU seals suit normal operating temperatures from -20 to +70 °C.
Airtac SC80 Standard Cylinder SC80X400STC Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X400STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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 SC80X400STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SC80X400STC Is Used
Part Diverter Gate
The 400 mm stroke and pivoting trunnion mount allow this cylinder to swing a diverter arm on a conveyor line, reliably sorting packages with 2513 N of push force at standard line pressure.
Clamp & Weld Fixture
Used in a welding cell, the SC80X400STC swings a clamping arm into place. The built-in magnet confirms full extension via a reed sensor before the weld cycle starts, ensuring operator safety.
Hopper Gate Actuator
Controls a discharge gate on a bulk material hopper. The trunnion mount accommodates the gate's arc of motion, while the 28 mm cushion absorbs the impact of the heavy gate closing at speed.
Is the Airtac SC80 Standard Cylinder SC80X400STC the Right Cylinder?
For a 400 mm stroke at 80 mm bore, verify that side loads are minimal or handled by external guides; a long, unsupported 25 mm rod can be subject to bending under lateral force. If the application requires more force, stepping up to a 100 mm bore provides 3927 N at 0.5 MPa. For a smaller footprint with less force, a 63 mm bore delivers 1559 N at 0.5 MPa.
To ensure a correct replacement, match five key points: 80 mm bore, 400 mm stroke, PT port thread, centre trunnion (TC) mounting with the TCM1 bracket, and the built-in magnet (-S) for sensor compatibility. This tie-rod cylinder is not an ISO 15552 profile and should only replace an identical AirTAC SC 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 SC80X400STC FAQ
At the standard 0.5 MPa operating pressure, 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 increases to 4523 N. The theoretical maximum force at 1.0 MPa is 513 kgf.
Yes. The '-S' in the model code SC80X400STC indicates a built-in magnet is installed on the piston. This allows you to clamp AirTAC CMSG, DMSG, or EMSG series reed or solid-state sensors directly onto the cylinder barrel's sensor groove to detect piston position.
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