Airtac AIRTAC SC125-160 Standard Cylinder SC125X30
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X30 is a genuine double-acting standard air cylinder with a Ø125mm bore and 30mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke30 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X30
The AirTAC SC125X30 is a double-acting tie-rod cylinder delivering a substantial 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). With a 30 mm stroke, it is configured for short, high-force clamping, pressing, or positioning tasks where the 32 mm diameter piston rod provides excellent rigidity against side loads.
This model features a 28 mm adjustable air cushion at each end to decelerate the piston smoothly, protecting end caps during high-cycle operation. The body length A is 203 mm, and the PT1/2 port thread supplies ample flow for fast actuation within the 30-500 mm/s speed range typical of this ISO 6430 class bore.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X30 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X30 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 30 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 SC125X30
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×30 | 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 SC125X30 Is Used
Heavy-Duty Clamping
The 6136 N force at 0.5 MPa makes the SC125X30 ideal for powerful pneumatic clamps in welding fixtures or assembly jigs where a short, rigid stroke is essential.
Die Cushion / Stripper Plate
Use this short-stroke, high-force cylinder as a pneumatic die cushion or stripper in metal stamping operations, leveraging the 28 mm adjustable cushion for impact absorption.
Material Pressing
Delivers up to 11045 N at 0.9 MPa for pressing bearings, bushings, or laminates. The 32 mm rod resists buckling under the high thrust generated by the 125 mm bore.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X30 the Right Cylinder?
The SC125 bore sits in the heavy-duty range, with a 0.5 MPa push force of 6136 N. If your application can work with a smaller envelope, stepping down to the SC100 bore provides 3927 N at the same pressure. For even higher force, the SC160 bore offers 10053 N at 0.5 MPa. Always match replacement cylinders on five points: bore (125 mm), stroke (30 mm), port thread (PT1/2), mounting accessory (basic), and magnet option (none).
Although this is a short 30 mm stroke, the large 32 mm rod is inherently stiff. For any future application using a stroke of 300 mm or more on this bore, consider an external guide or a guided cylinder to prevent rod-bearing bending from side loads.
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 SC125X30 FAQ
At 0.7 MPa operating pressure, the SC125 bore generates 8590 N of push force on extension and 5734 N of pull force on retraction. The maximum push force at 0.9 MPa is 11045 N.
No. The AirTAC SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder of the same bore and stroke, so it is not dimensionally interchangeable. Replace it only with another AirTAC SC125 tie-rod cylinder matching the 30 mm stroke, PT1/2 ports, and basic mounting.
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