Airtac AIRTAC SC125-160 Standard Cylinder SC125X55S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X55S is a genuine double-acting standard air cylinder with a Ø125mm bore and 55mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke55 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X55S
The SC125X55S is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a 55 mm standard stroke. This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors on the barrel for precise, non-contact position feedback.
With a 32 mm diameter piston rod and PT1/2 ports, this cylinder generates a substantial push force of 6136 N at 0.5 MPa, rising to 11045 N at the maximum operating pressure of 0.9 MPa. The body length A is 203 mm, and the 28 mm adjustable air cushion at each end provides smooth deceleration for high-cycle applications.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X55S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X55S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 55 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 SC125X55S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×55 | 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 SC125X55S Is Used
Heavy-Duty Clamping
Delivers up to 11045 N of force at 0.9 MPa for securely holding large weldments or castings during machining, with sensor confirmation of the clamped position.
Pallet Stop & Lift
Provides the high push force needed to stop or lift heavy pallets on a conveyor line, with the built-in magnet enabling end-of-stroke detection for automated logic control.
Press-Fit Assembly
Suitable for short-stroke press-fit operations, inserting bearings or bushings with a controlled 6136 N force at standard 0.5 MPa shop air pressure.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X55S the Right Cylinder?
For applications requiring slightly less force, consider stepping down to the 100 mm bore SC100 series, which provides 3927 N of push force at 0.5 MPa. To match this SC125X55S cylinder for a replacement, ensure five points align: the 125 mm bore, 55 mm stroke, PT port thread, the basic mounting configuration (no pre-installed bracket), and the built-in magnet for sensor compatibility.
Although this 55 mm stroke is short and rigid, any side load on the rod should be avoided. The SC series is a tie-rod cylinder designed for axial force; if a radial load is unavoidable, an external guide rail or rod-alignment coupler is mandatory to prevent premature rod bearing and seal wear.
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 SC125X55S FAQ
At 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 force at 1.0 MPa is 1251 kgf.
Yes. The -S suffix in the model code indicates a built-in magnet is installed on the piston. This allows you to clamp compatible AirTAC CMSG, DMSG, or EMSG sensors directly onto the cylinder barrel's tie-rod slots without any additional brackets.
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