Airtac SC50 Standard Cylinder SC50X683
The AirTAC SC50 Standard Cylinder SC50X683 is a genuine double-acting standard air cylinder with a Ø50mm bore and 683mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke683 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 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 SC50 Standard Cylinder SC50X683
The AirTAC SC50X683 is a double-acting single-rod pneumatic cylinder with a 50 mm bore and a non-standard 683 mm stroke, built on the compact SC tie-rod platform. At 0.5 MPa it delivers 982 N push and 825 N pull, scaling to 1767 N push at the maximum operating pressure of 0.9 MPa, making it a solid mid-range actuator for linear tasks.
This model uses a 20 mm diameter piston rod with M16x1.5 male threads and PT1/4 ports. The body length A is 150 mm, giving an approximate extended length of 833 mm. An adjustable air cushion at each end decelerates the piston over 21 mm to reduce end-of-stroke impact. Because the stroke exceeds the 1200 mm standard maximum for bore 50, this cylinder is a made-to-order item.
Airtac SC50 Standard Cylinder SC50X683 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X683 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 683 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC50 Standard Cylinder SC50X683
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×683 | 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 SC50 Standard Cylinder SC50X683 Is Used
Long-Reach Part Transfer
The 683 mm stroke moves components between widely spaced conveyor lanes or workstations, with 982 N of push force at standard line pressure to shift moderate payloads.
Vertical Panel Press
Applies 1767 N of clamping force at 0.9 MPa for pressing, holding, or bonding large panels, where the extended reach clears the tooling area during load/unload.
Bin Diverter Gate
Operates a tall diverter chute or gate in material handling, using the full 683 mm stroke to swing a flap between two downstream lanes.
Is the Airtac SC50 Standard Cylinder SC50X683 the Right Cylinder?
Choose the SC50X683 when the 50 mm bore's force class fits the load—if you need more push, stepping up to the 63 mm bore provides 1559 N at 0.5 MPa; for a lighter, more compact solution, the 40 mm bore offers 628 N. For this 683 mm stroke, the long unsupported rod is vulnerable to bending under side loads; always guide the load externally or pair the cylinder with a linear rail to protect the rod bearing and seals.
To replace an existing cylinder, match five points exactly: 50 mm bore, 683 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and no built-in magnet. The SC is a tie-rod cylinder 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 SC50 Standard Cylinder SC50X683 FAQ
At 0.7 MPa supply pressure, the SC50X683 produces 1374 N of push force and 1155 N of pull force (calculated from the 825 N pull at 0.5 MPa). The maximum operating pressure is 1.0 MPa, delivering 1963 N push.
For a stroke this long with a 20 mm rod, side loading must be avoided. The rod bearing is not designed to support bending moments. Always use an external guide system or a guided cylinder variant to prevent rod deflection and premature seal wear.
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