Airtac AIRTAC SC125-160 Standard Cylinder SC125X950
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X950 is a genuine double-acting standard air cylinder with a Ø125mm bore and 950mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke950 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X950
The AirTAC SC125X950 is a double-acting tie-rod cylinder delivering a push force of 6136 N at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. With a 32 mm diameter piston rod and an M27x2 rod thread, this ISO 6430 class cylinder is built for heavy linear actuation tasks where substantial force is required over a long working distance.
This model features a 950 mm stroke, which is well within the 1500 mm maximum standard stroke for the 125 mm bore. The body length A is 203 mm, giving a total extended length of approximately 1153 mm. It includes a 28 mm adjustable air cushion on both ends to decelerate the piston smoothly, and uses standard PT1/2 ports with TPU seals for an operating temperature range of -20 to +70 °C.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X950 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X950 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 950 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 SC125X950
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×950 | 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 SC125X950 Is Used
Pallet Lift and Transfer
Provides the high force and long stroke needed to lift and horizontally transfer heavy pallets between conveyor lines in a distribution center.
Heavy-Duty Clamping
Delivers 11045 N of clamping force at 0.9 MPa to secure large weldments or castings in heavy machining and fabrication fixtures.
Log and Lumber Sorting
Actuates kicker arms and diverter gates in sawmill lines, pushing heavy logs or lumber off a main conveyor with reliable, repeatable force.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X950 the Right Cylinder?
Select the SC125X950 when your application demands a force class around 6136 N at standard plant air pressure. If your load is lighter, stepping down to the SC100 bore reduces the push force to 3927 N at 0.5 MPa, which may allow for a smaller, more economical cylinder. For higher force requirements, the SC160 bore provides a significant jump to 10053 N.
At a 950 mm stroke, the piston rod is fully supported by the bearing within the cylinder body, but any external side load on the rod end can create a bending moment. For applications where the load is not guided, you must use an external guide system to prevent rod bearing damage and ensure seal longevity. For a direct replacement, match the 125 mm bore, 950 mm stroke, PT1/2 port thread, and basic mounting configuration exactly.
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 SC125X950 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.
No. The AirTAC SC series is a tie-rod cylinder and is shorter than an ISO 15552 profile cylinder, so it is not dimensionally interchangeable. The SC125-250 bores are classified as ISO 6430 class. For a correct replacement, match another AirTAC SC125 tie-rod cylinder with the same stroke, port, and mounting.
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