Airtac AIRTAC SC125-160 Standard Cylinder SC125X125TC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X125TC is a genuine double-acting standard air cylinder with a Ø125mm bore and 125mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke125 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X125TC
The SC125X125TC is a double-acting pneumatic cylinder with a 125 mm bore and 125 mm stroke, supplied with a centre trunnion (TC) mount for pivoting applications. At 0.5 MPa it generates 6136 N pushing force and 5734 N pulling force, rising to 11045 N push at the maximum 0.9 MPa operating pressure—enough for heavy clamping, pressing, and lifting tasks.
This model uses a 32 mm diameter piston rod with M27×2 male threads and PT1/2 ports. The adjustable air cushion (28 mm length) decelerates the piston near stroke end to reduce impact. As an ISO 6430 class tie-rod cylinder, the SC125 body length A is 203 mm, giving a total extended length of approximately 328 mm. It ships with the TCM1 trunnion bracket (part code F-SC125TC) for direct mounting onto a pivoting machine member.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X125TC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X125TC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 28 mm |
| Max stroke | Up to 1500 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (approx.) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac AIRTAC SC125-160 Standard Cylinder SC125X125TC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | 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 AIRTAC SC125-160 Standard Cylinder SC125X125TC Is Used
Heavy Part Diverting
The 125 mm bore provides ample force to swing a diverter gate or chute flap on a conveyor line. The centre trunnion mount allows the cylinder body to pivot as the gate moves, eliminating rod side-load.
Weld Fixture Clamping
With 11045 N of clamping force at 0.9 MPa, this cylinder securely locks large fabrications in a welding jig. The trunnion mount simplifies fixture design by letting the cylinder self-align during the clamp stroke.
Press & Forming Assist
Delivers consistent, controlled force for light press-fit assembly or sheet-metal forming operations. The adjustable cushion protects tooling by absorbing impact energy at the end of the pressing stroke.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X125TC the Right Cylinder?
Choose the SC125 bore when your application needs 6000–11000 N of force from standard 0.5–0.9 MPa shop air. If you can work with roughly 3900 N at 0.5 MPa, stepping down to the SC100 bore (25 mm rod, PT1/2) reduces weight and air consumption. For higher force, the SC160 bore delivers 10053 N push at 0.5 MPa. The centre trunnion mount suits loads that must swing through an arc; ensure the pivot axis is perpendicular to the rod and aligned with the cylinder centre of gravity to avoid binding.
When replacing an existing cylinder, match five points: 125 mm bore, 125 mm stroke, PT port thread, centre trunnion (TC) mounting with the F-SC125TC bracket, and no magnet. This SC is a tie-rod design—shorter than an ISO 15552 profile cylinder—so verify overall length and mounting hole positions against your machine before ordering.
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 AIRTAC SC125-160 Standard Cylinder SC125X125TC FAQ
At 0.5 MPa the cylinder pushes with 6136 N and pulls with 5734 N. At 0.7 MPa push force is 8590 N, and at the maximum recommended 0.9 MPa it reaches 11045 N push. The theoretical maximum at 1.0 MPa is 1251 kgf. Always multiply the datasheet force by a load factor (typically 0.5–0.7) for dynamic applications to account for friction and speed.
Not directly. The SC series is a tie-rod cylinder with a shorter overall body length than a typical ISO 15552 profile cylinder of the same bore and stroke. The mounting dimensions, tie-rod spacing, and port locations differ. Only replace an existing AirTAC SC tie-rod cylinder or a cylinder with identical tie-rod dimensions. For the 125–250 mm bore range, the SC conforms to ISO 6430 class mounting dimensions.
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