Airtac AIRTAC SC125-160 Standard Cylinder SC125X45SFA
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X45SFA is a genuine double-acting standard air cylinder with a Ø125mm bore and 45mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke45 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X45SFA
The AirTAC SC125X45SFA is a double-acting single-rod pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the maximum 0.9 MPa operating pressure). With a 45 mm stroke, it is configured for short, high-force clamping, pressing, or positioning tasks where space is limited but substantial thrust is required.
This model features a 32 mm diameter piston rod with an M27x2 thread and an integrated magnet (-S suffix), allowing direct mounting of CMSG/DMSG/EMSG sensors for piston position feedback. The front rectangular flange (FA mount, accessory F-SC125FA) enables rigid panel or bulkhead mounting. Standard PT ports (1/2 inch) and TPU seals complete the build, with an adjustable air cushion decelerating the 28 mm cushion stroke.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X45SFA Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X45SFA |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 45 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 SC125X45SFA
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×45 | 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 SC125X45SFA Is Used
Heavy-Duty Clamping
Generates over 1.1 metric tons of force at 0.9 MPa for secure workpiece clamping in machining centres and welding fixtures.
Die Cushion / Stripper Plate
Short, powerful stroke ideal for stripping parts from dies or providing a controlled cushion force in metal stamping operations.
Resistance Welding Actuation
Delivers the high electrode force needed for spot and projection welding, with the -S magnet providing precise position confirmation.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X45SFA the Right Cylinder?
Choose the SC125X45SFA when your application needs over 6000 N of force in a compact 45 mm stroke. For slightly lower force in a smaller envelope, step down to the SC100 bore (3927 N at 0.5 MPa); for even greater force, the SC160 bore offers 10053 N at the same pressure. The short stroke minimizes rod bearing stress, but always ensure the load is guided to prevent side forces on the 32 mm rod.
For direct replacement, match these five points: 125 mm bore, 45 mm stroke, PT (1/2 inch) port thread, FA front flange mounting, and the -S magnet for sensor compatibility. This is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC125X45SFA FAQ
At 0.7 MPa (7 bar) operating pressure, the push force is 8590 N. The maximum push force at 0.9 MPa is 11045 N, and the theoretical force at 1.0 MPa is 1251 kgf.
Yes. The -S suffix indicates a built-in magnet on the piston. You can clamp compatible CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel's tie-rod slots to detect piston position.
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