Airtac AIRTAC SC125-160 Standard Cylinder SC125X155S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X155S is a genuine double-acting standard air cylinder with a Ø125mm bore and 155mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke155 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X155S
The AirTAC SC125X155S is a double-acting tie-rod cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). Its 32 mm diameter piston rod and 28 mm adjustable air cushion handle deceleration smoothly, making it a workhorse for medium-to-heavy pneumatic tasks.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for rod-position feedback. With a 155 mm stroke and a body length A of 203 mm, the total extended length reaches approximately 358 mm. The standard PT1/2 port and M27x2 rod thread suit robust industrial plumbing.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X155S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X155S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 155 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 SC125X155S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×155 | 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 SC125X155S Is Used
Heavy Part Clamping
The 11045 N thrust at 0.9 MPa provides ample force for pneumatic clamping fixtures on machining centres, holding large castings or weldments securely during cutting or assembly.
Pallet Stop & Lift
With 6136 N at 0.5 MPa and sensor-ready position feedback, this cylinder works as a powered pallet stop or lift station in conveyor systems, confirming end-of-stroke to the PLC.
Press & Forming Assist
The 32 mm rod and tie-rod construction withstand the side-loads of simple press and forming operations, while the built-in magnet enables cycle counting and stroke-end detection.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X155S the Right Cylinder?
The SC125 bore sits between the SC100 (3927 N at 0.5 MPa) and the SC160 (10053 N at 0.5 MPa). If your load requires more than ~6000 N of force, step up to the SC160; for a lighter, more compact actuator, the SC100 may suffice. The 155 mm stroke is well within the 1500 mm maximum standard stroke for this bore.
For replacement, match five points: 125 mm bore, 155 mm stroke, PT1/2 port thread, the built-in magnet (-S suffix), and your existing mounting accessory. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders. Big-bore SC125-250 models are ISO 6430 class.
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 SC125X155S FAQ
At 0.5 MPa, push force is 6136 N and pull force is 5734 N. At 0.7 MPa, push reaches 8590 N. The maximum operating pressure of 0.9 MPa delivers 11045 N of push force. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix means a magnet is built into the piston. You can mount AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly on the barrel tie-rods to detect piston position without external brackets.
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