Airtac SC50 Standard Cylinder SC50X312
The AirTAC SC50 Standard Cylinder SC50X312 is a genuine double-acting standard air cylinder with a Ø50mm bore and 312mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke312 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 SC50X312
The AirTAC SC50X312 is a double-acting pneumatic cylinder delivering a practical push force of 982 N at 0.5 MPa and up to 1767 N at 0.9 MPa. Its 20 mm diameter piston rod and PT1/4 pneumatic ports suit medium-duty linear actuation tasks. The 312 mm stroke is a non-standard length, manufactured to order for applications needing a specific extended reach beyond the standard 50 mm increments.
This tie-rod cylinder features an adjustable air cushion (21 mm length) at both ends to decelerate the piston smoothly, reducing end-of-stroke impact. The body length A is 150 mm, making the total extended length approximately 462 mm. It operates on filtered air from 0.15 to 1.0 MPa within a standard temperature range of -20 to +70 °C.
Airtac SC50 Standard Cylinder SC50X312 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X312 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 312 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 SC50X312
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×312 | 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 SC50X312 Is Used
Material Transfer
Pushes or diverts packages and components on conveyor lines with a controlled 312 mm stroke, using the 982 N force at 0.5 MPa to handle medium-weight goods reliably.
Clamping & Fixturing
Applies consistent clamping pressure in woodworking or metalworking jigs. The 20 mm rod and tie-rod construction provide rigidity for holding workpieces during machining.
Logistics Sorting Gate
Operates a diverter gate or stop in logistics systems. The non-standard 312 mm stroke offers the exact throw distance needed for custom chute mechanisms.
Is the Airtac SC50 Standard Cylinder SC50X312 the Right Cylinder?
Selecting the SC50X312 involves matching its 50 mm bore force class to the load. If 982 N at 0.5 MPa is insufficient, stepping up to the 63 mm bore provides 1559 N. For a shorter standard stroke, the SC50X300 is an alternative. The 312 mm stroke requires attention to rod support; side loads at this extension can cause rod bending or bearing wear, so an external linear guide is recommended.
For direct replacement, match five key specs: 50 mm bore, 312 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and the absence of a magnet. This ensures dimensional and functional interchangeability with an existing AirTAC SC tie-rod cylinder.
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 SC50X312 FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
No, 312 mm is a non-standard stroke for the 50 mm bore SC cylinder. It is a made-to-order item, so lead times are typically longer than standard strokes like 300 mm or 350 mm.
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