Airtac SC50 Standard Cylinder SC50X390
The AirTAC SC50 Standard Cylinder SC50X390 is a genuine double-acting standard air cylinder with a Ø50mm bore and 390mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke390 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 SC50X390
The AirTAC SC50X390 is a double-acting tie-rod cylinder delivering 982 N of push force and 825 N of pull force at 0.5 MPa. With a 50 mm bore and a 390 mm stroke, it uses a 20 mm diameter piston rod with M16x1.5 male threads and PT1/4 ports. The total extended body length is approximately 540 mm, based on a 150 mm body length A.
This model includes an adjustable pneumatic cushion (21 mm cushion length) at both ends to decelerate the piston smoothly, reducing end-of-stroke impact. The standard TPU seals with NBR O-rings support an operating temperature range of -20 to +70 °C. At the maximum operating pressure of 0.9 MPa, the cylinder outputs 1767 N of push force, making it a reliable workhorse for medium-duty linear actuation tasks.
Airtac SC50 Standard Cylinder SC50X390 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X390 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 390 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 SC50X390
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×390 | 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 SC50X390 Is Used
Package Sorting Gates
Provides the 390 mm stroke needed to divert medium-weight parcels on conveyor lines, with adjustable cushioning for quiet, low-impact operation at high cycle rates.
Clamping & Fixturing
Generates up to 1767 N of clamping force at 0.9 MPa for holding workpieces during machining or welding, with a rigid 20 mm rod resisting deflection.
Hopper Door Actuation
Opens and closes discharge doors on agricultural bins or mixers, using the long 390 mm stroke and robust tie-rod construction to handle dusty, outdoor environments.
Is the Airtac SC50 Standard Cylinder SC50X390 the Right Cylinder?
The SC50X390 sits in the middle of the SC family. If you need more force, stepping up to the SC63 bore provides 1559 N of push force at 0.5 MPa, while stepping down to the SC40 bore delivers 628 N. For this 390 mm stroke, ensure the rod is not subjected to high side loads; if lateral forces are present, use an external linear guide or a guided cylinder to prevent rod bending and premature seal wear.
To guarantee a direct replacement, match five key points: 50 mm bore, 390 mm stroke, PT1/4 port thread, the specific mounting accessory (if any), and the magnet option. This basic model has no built-in magnet, so sensor mounting requires external brackets unless you order the -S variant.
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 SC50X390 FAQ
At the standard 0.5 MPa operating pressure, 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 increases to 1767 N. The theoretical maximum force at 1.0 MPa is 200 kgf.
No, this basic SC50X390 model does not include a built-in magnet. To use CMSG, DMSG, or EMSG reed or solid-state sensors clamped directly to the barrel, you must order the SC50X390-S variant, which includes the magnet ring on the piston.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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