Airtac AIRTAC SC125-160 Standard Cylinder SC125X325S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X325S is a genuine double-acting standard air cylinder with a Ø125mm bore and 325mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke325 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X325S
The AirTAC SC125X325S is a double-acting tie-rod cylinder with a 125 mm bore and 325 mm stroke, delivering a substantial push force of 6136 N at 0.5 MPa (up to 11045 N at 0.9 MPa). This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for precise, non-contact position feedback.
With a 32 mm piston rod and an M27x2 rod thread, the SC125X325S is built for heavy-duty linear tasks. The adjustable pneumatic cushion (28 mm length) decelerates the piston smoothly at each end of stroke, reducing impact and noise. As a tie-rod design, it is compact and robust, classified as an ISO 6430 class cylinder for this large bore, with a standard PT1/2 port for reliable air supply.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X325S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X325S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 325 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 SC125X325S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×325 | 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 SC125X325S Is Used
Pallet Lifting & Stacking
The 6136 N push force at 0.5 MPa easily lifts and positions heavy pallets in automated warehouses, with the magnetic piston enabling precise layer-height sensing.
Heavy-Duty Clamping
Ideal for large CNC fixtures and welding jigs, the 11045 N max force securely holds heavy workpieces. The built-in magnet provides clamp/unclamp confirmation to the machine controller.
Logistics Diverting Gates
Actuates high-inertia diverters on heavy-box conveyor lines. The adjustable cushion absorbs impact at the 325 mm stroke end, protecting the gate structure from shock loads.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X325S the Right Cylinder?
Select the SC125 when your application requires a force class between the SC100 (3927 N push at 0.5 MPa) and the SC160 (10053 N push at 0.5 MPa). For this 325 mm stroke, the 32 mm rod provides excellent rigidity, but you must still avoid direct side loads; use an external guide or linear bearing for any off-axis force to prevent rod bending and premature seal wear. A 5-point match for replacement requires confirming the 125 mm bore, 325 mm stroke, PT1/2 port thread, the built-in magnet (-S) for sensor compatibility, and the basic mounting style (no factory bracket).
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 SC125X325S FAQ
At the standard operating pressure of 0.5 MPa, the push force is 6136 N and the pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix in SC125X325S indicates a built-in magnet on the piston. This allows you to clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel's tie-rod slots for end-of-stroke or intermediate position detection without any additional brackets.
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