Airtac SC50 Standard Cylinder SC50X125TC
The AirTAC Airtac SC50 Standard Cylinder SC50X125TC is a genuine double-acting standard air cylinder with a Ø50mm bore and 125mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke125 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X125TC
The SC50X125TC is a 50 mm bore, 125 mm stroke double-acting pneumatic cylinder from the AirTAC SC tie-rod family. It delivers 982 N of push force at 0.5 MPa and 1767 N at 0.9 MPa, making it a capable mid-range actuator for moderate loads. The 20 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration at end-of-stroke.
This model includes the TC centre trunnion mounting, supplied with the TCM1 bracket (F-SC50TC). The trunnion allows the cylinder body to pivot, accommodating swinging or arcing loads without inducing side forces on the rod. With a body length A of 150 mm, the total extended length is approximately 275 mm. Standard PT1/4 ports and TPU seals rated for -20 to +70 °C complete the package.
Airtac SC50 Standard Cylinder SC50X125TC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X125TC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 SC50X125TC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 SC50X125TC Is Used
Part Diverter Gates
The pivoting TC mount lets this cylinder swing a diverter gate on a conveyor line, routing products between lanes with 982 N of push force at standard plant pressure.
Clamp & Fixture Actuation
Ideal for welding or assembly fixtures that need to swing clear for part loading. The centre trunnion allows the clamp arm to pivot out of the way without side-loading the rod.
Hopper or Chute Control
Operates a pivoting chute or hopper door on agricultural or bulk-handling equipment, where the cylinder body must oscillate to follow the door's arc.
Is the Airtac SC50 Standard Cylinder SC50X125TC the Right Cylinder?
The SC50X125TC suits applications where the cylinder must pivot during operation. For higher force, the SC63 bore steps up to 1559 N at 0.5 MPa; for lighter, more compact needs, the SC40 provides 628 N. When replacing, match bore (50), stroke (125), PT port thread, TC centre trunnion mount, and confirm the magnet option (this model has no built-in magnet). At 125 mm stroke, the rod is well-supported within standard limits, but always align the trunnion axis to avoid binding.
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 SC50X125TC FAQ
At 0.5 MPa (approx. 73 psi), the push force is 982 N and pull force is 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.
The TC suffix means the cylinder is supplied with a centre trunnion and TCM1 bracket for pivoting. If you need a fixed mount, consider a basic (no mount code), LB foot mount, or FA/FB flange mount version. The trunnion can be removed, but the cylinder body is standard.
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