Airtac SC80 Standard Cylinder SC80X689SLB
The AirTAC Airtac SC80 Standard Cylinder SC80X689SLB is a genuine double-acting standard air cylinder with a Ø80mm bore and 689mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke689 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X689SLB
The AirTAC SC80X689SLB is a double-acting single-rod pneumatic 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. Its 689 mm stroke is a non-standard, made-to-order length, paired with a 25 mm diameter piston rod and a 28 mm adjustable air cushion for reliable end-of-stroke deceleration.
This model is configured with a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, and an LB foot mount (F-SC80LB) for secure axial surface installation. The standard PT1/8 port thread and TPU seals with a -20 to +70 °C operating range make it a versatile workhorse for industrial automation tasks requiring a genuine AirTAC tie-rod cylinder.
Airtac SC80 Standard Cylinder SC80X689SLB Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X689SLB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 689 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 SC80X689SLB
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×689 | 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 SC80X689SLB Is Used
Long-Stroke Part Transfer
The 689 mm stroke and 4523 N of force at 0.9 MPa power long-distance pushers and transfer stations on packaging and assembly lines, while the built-in magnet enables precise mid-stroke position sensing.
Automated Diverter Gates
Ideal for actuating diverter gates in material handling systems. The LB foot mount provides a stable base, and the adjustable cushioning absorbs impact at the end of the long travel, protecting the conveyor structure.
Heavy Fixture Clamping
Delivers high clamping force for large welding or machining fixtures. The magnetic piston allows engineers to verify full extension and retraction with CMSG/DMSG sensors, integrating seamlessly into automated safety logic.
Is the Airtac SC80 Standard Cylinder SC80X689SLB the Right Cylinder?
For applications requiring less force, stepping down to a 63 mm bore reduces push force to 1559 N at 0.5 MPa. If more force is needed, the 100 mm bore offers 3927 N at the same pressure. With a 689 mm stroke, the 25 mm rod is susceptible to bending under side loads; an external linear guide or guided cylinder is strongly recommended to protect the rod bearing and ensure long service life. When replacing this cylinder, match five key points: 80 mm bore, 689 mm stroke, PT port thread, LB foot mounting, 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 SC80X689SLB FAQ
At the standard 0.5 MPa operating pressure, the cylinder produces 2513 N pushing and 2268 N pulling. 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.
It is not recommended. The 25 mm rod on an 80 mm bore cylinder is vulnerable to bending and uneven bearing wear under side loads, especially at a 689 mm stroke. Always use an external guide rail or rod-alignment coupler to prevent side-load damage and ensure reliable operation.
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