Airtac SC80 Standard Cylinder SC80X640
The AirTAC Airtac SC80 Standard Cylinder SC80X640 is a genuine double-acting standard air cylinder with a Ø80mm bore and 640mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke640 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X640
The AirTAC SC80X640 is a double-acting tie-rod cylinder delivering 2513 N of push force at 0.5 MPa and up to 4523 N at the maximum operating pressure of 0.9 MPa. With an 80 mm bore, 25 mm diameter piston rod, and a 640 mm stroke, this model is built for applications demanding robust linear thrust over a substantial working distance.
This cylinder features a 28 mm adjustable air cushion at each end to decelerate the piston smoothly, reducing impact and noise. The body length A is 182 mm, resulting in a total extended length of approximately 822 mm. It uses a PT3/8 port and an M20x1.5 rod thread, operating on filtered air within a -20 to +70 °C temperature range with its standard TPU seals.
Airtac SC80 Standard Cylinder SC80X640 Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X640 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 640 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 SC80X640
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×640 | 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 SC80X640 Is Used
Material Transfer Systems
Provides the 640 mm stroke needed to push heavy totes or pallets between conveyor lines, with 2513 N of force at standard shop air pressure.
Heavy-Duty Clamping Fixtures
Delivers up to 4523 N of clamping force at 0.9 MPa to secure large weldments or composite layups, with adjustable cushioning for smooth operation.
Baler and Compactor Ejection
The long 640 mm stroke ejects compacted material bales fully from the chamber, using the robust 25 mm rod to handle the ejection load.
Is the Airtac SC80 Standard Cylinder SC80X640 the Right Cylinder?
For applications needing more force, stepping up to the 100 mm bore SC100 series provides 3927 N of push force at 0.5 MPa. If a shorter, more compact cylinder is sufficient, the 63 mm bore SC63 series offers 1559 N at the same pressure. At a 640 mm stroke, the piston rod is significantly extended; ensure side loads are minimal or use an external guide system to prevent rod bending and premature bearing wear.
When replacing an existing cylinder, match these five points exactly: 80 mm bore, 640 mm stroke, PT3/8 port thread, the basic (no bracket) mounting configuration, and the absence of a built-in magnet. This model is a direct replacement for another AirTAC SC80X640 tie-rod cylinder with the same specifications.
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 SC80X640 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 increases to 4523 N. The theoretical maximum force at 1.0 MPa is 513 kgf.
No. The SC80X640 is a double-acting cylinder and will not hold its position if air pressure is lost or the directional valve is centered. The piston can drift or drop. For load holding, you must add an external mechanical lock, a rod brake, or a pilot-operated check valve.
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