Airtac SC80 Standard Cylinder SC80X685
The AirTAC Airtac SC80 Standard Cylinder SC80X685 is a genuine double-acting standard air cylinder with a Ø80mm bore and 685mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke685 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X685
The AirTAC SC80X685 is a double-acting tie-rod cylinder delivering 2513 N of push force at 0.5 MPa, scaling up to 4523 N at the maximum operating pressure of 0.9 MPa. Its 25 mm diameter piston rod and 28 mm adjustable air cushion are engineered for mid-to-heavy linear actuation tasks requiring a substantial 685 mm working stroke.
This model features a 182 mm body length, resulting in an extended length of approximately 867 mm. The SC80X685 uses PT3/8 ports and operates on filtered air within a -20 to +70 °C range with its standard TPU seals, making it a robust choice for general industrial automation.
Airtac SC80 Standard Cylinder SC80X685 Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X685 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 685 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 SC80X685
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×685 | 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 SC80X685 Is Used
Material Handling Pushers
The 685 mm stroke and 2513 N force at 0.5 MPa are ideal for cross-pushing cartons or totes off a conveyor line, providing a long, controlled sweep to divert products.
Clamping & Assembly Jigs
Delivers a powerful, steady clamping force for holding large workpieces during welding or assembly, with the 28 mm cushion absorbing shock at the end of the 685 mm travel.
Bin Tippers & Dumpers
Provides the long linear stroke needed to tilt heavy bins or hoppers for emptying, where the 80 mm bore generates sufficient thrust to manage the shifting load.
Is the Airtac SC80 Standard Cylinder SC80X685 the Right Cylinder?
For applications needing more force, stepping up to the 100 mm bore SC100 series provides 3927 N at 0.5 MPa. If a shorter, more compact cylinder is suitable, the 63 mm bore SC63 series offers 1559 N at the same pressure. Always verify that the 25 mm rod is adequately supported against side loads, especially at this 685 mm stroke length.
To ensure a correct drop-in replacement, match five key specifications: the 80 mm bore, the 685 mm stroke, the PT3/8 port thread, the basic (no bracket) mounting configuration, and the absence of a built-in magnet. This cylinder is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC80X685 FAQ
At 0.7 MPa (7 bar), the SC80X685 generates a push force of 3518 N. The maximum push force at the 0.9 MPa operating limit is 4523 N.
No. A 685 mm stroke with a 25 mm rod is susceptible to bending under side loads. You must use an external guide rail or a guided cylinder to absorb lateral forces and protect the rod bearings from premature wear.
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