Airtac SC125-160 Standard Cylinder SC125X125TC
The 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
- 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 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 SC125-160 Standard Cylinder SC125X125TC Technical Specifications
| Model | 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 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 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 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 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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