Airtac SC50 Standard Cylinder SC50X400STC
The AirTAC SC50 Standard Cylinder SC50X400STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 400mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke400 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 SC50X400STC
The SC50X400STC is a 50 mm bore double-acting pneumatic cylinder delivering 400 mm of stroke with a centre trunnion pivot and integrated magnet for sensor mounting. At 0.5 MPa it pushes with 982 N and pulls with 825 N, rising to 1767 N of push force at the 0.9 MPa maximum operating pressure.
This model ships with the TCM1 trunnion bracket pre-assembled (part code F-SC50TC), letting the cylinder pivot freely mid-body. The built-in magnet (-S suffix) accepts CMSG/DMSG/EMSG sensors clamped directly to the tie-rod barrel, so end-of-stroke confirmation is simple and tool-free. The 20 mm diameter piston rod is threaded M16x1.5, and the 21 mm adjustable air cushion at each end decelerates the 400 mm stroke smoothly.
Airtac SC50 Standard Cylinder SC50X400STC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X400STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 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 SC50X400STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×400 | 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 SC50X400STC Is Used
Pivoting Conveyor Gate
The centre trunnion mount lets the cylinder swing as it opens and closes a material diverter gate. Magnetic sensors confirm the gate position at each end of the 400 mm stroke.
Clamp & Weld Fixture
Pivots into place on a fabrication jig, applying 982 N of clamping force at standard shop air. The -S magnet signals 'clamped' and 'retracted' to the machine PLC.
Hopper Discharge Chute
Swings a discharge chute between two fill stations. The trunnion mount absorbs the arc motion, and the adjustable cushion softens the stop at each end of the 400 mm travel.
Is the Airtac SC50 Standard Cylinder SC50X400STC the Right Cylinder?
Choose the SC50X400STC when your application needs a mid-body pivot point and magnetic piston sensing. The centre trunnion mount handles swinging or arcing loads without binding. If you need higher force, step up to the 63 mm bore (1559 N push at 0.5 MPa); for a lighter, more compact solution the 40 mm bore delivers 628 N.
At 400 mm stroke, the 20 mm rod is long enough that side loads and rod-bearing bending should be checked. If the load is not guided externally, consider adding a linear guide or upgrading to a guided-cylinder unit. For direct replacement, match five points: 50 mm bore, 400 mm stroke, PT port thread, centre trunnion (TC) mount, and the built-in magnet (-S).
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 SC50X400STC FAQ
At 0.5 MPa the cylinder pushes with 982 N and pulls with 825 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
Yes. The -S suffix indicates a built-in magnet in the piston. AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors clamp directly onto the tie-rod barrel to detect piston position without additional brackets.
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