Airtac SC50 Standard Cylinder SC50X120TC
The AirTAC Airtac SC50 Standard Cylinder SC50X120TC is a genuine double-acting standard air cylinder with a Ø50mm bore and 120mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke120 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X120TC
The SC50X120TC is a 50 mm bore, 120 mm stroke double-acting pneumatic cylinder from the AirTAC SC tie-rod series. It delivers 982 N of push force at 0.5 MPa and 1767 N at 0.9 MPa, driven by a 20 mm diameter piston rod with M16x1.5 male threads. The body length is 150 mm, giving a compact extended length of 270 mm for this stroke.
This unit is factory-configured with the TC centre trunnion mount, supplied complete with the TCM1 bracket (part code F-SC50TC). The trunnion allows the cylinder to pivot during operation, making it ideal for swinging or articulating loads. Ports are PT1/4, and the adjustable air cushion (21 mm length) decelerates the piston smoothly at end-of-travel, reducing impact and noise.
Airtac SC50 Standard Cylinder SC50X120TC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X120TC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 120 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 SC50X120TC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×120 | 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 SC50X120TC Is Used
Part Diverter on Conveyors
The TC trunnion mount lets the cylinder pivot as it extends, perfectly suiting a flipper gate or diverter arm that pushes products onto a side lane. The 982 N force handles medium-weight packages reliably.
Clamping in Welding Fixtures
With 1767 N of clamping force at 0.9 MPa, this cylinder secures steel fabrications during robotic welding. The pivoting action allows the clamp arm to swing clear for easy part loading and unloading.
Chute or Hopper Gate Actuation
Controls a sliding gate on a grain or aggregate chute. The centre trunnion absorbs the arc of motion, while the 20 mm rod withstands dusty conditions, providing dependable open/close cycles.
Is the Airtac SC50 Standard Cylinder SC50X120TC the Right Cylinder?
Choose the SC50 for applications needing up to 982 N at standard plant pressure. If your load requires more force, stepping up to the SC63 provides 1559 N at 0.5 MPa. For lighter, faster cycling, the SC40 delivers 628 N. The 120 mm stroke is well within the 1200 mm maximum for this bore.
To ensure a correct replacement, match five points: 50 mm bore, 120 mm stroke, PT1/4 port thread, TC centre trunnion mounting, and the absence of a magnet. This cylinder is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders; it replaces another AirTAC SC50 of the same configuration.
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 SC50X120TC FAQ
At 0.7 MPa (7 bar), the theoretical push force is 1374 N. The pull force on the retract stroke is 825 N at 0.5 MPa, due to the area reduction from the 20 mm piston rod.
Yes. The SC50X120TC code specifies the centre trunnion mount, and AirTAC ships it with the TCM1 trunnion bracket included. The full accessory part code is F-SC50TC. The trunnion pin centre is positioned along the cylinder body for balanced pivoting.
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