Airtac AIRTAC SC125-160 Standard Cylinder SC125X900STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X900STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 900mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke900 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X900STC
The SC125X900STC is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa, scaling up to 11045 N at the maximum operating pressure of 0.9 MPa. With a 32 mm diameter piston rod and a 900 mm stroke, this model is built for heavy linear handling tasks where a long, controlled movement is required.
This configuration includes a built-in magnet (-S) for mounting CMSG/DMSG/EMSG sensors directly on the tie-rod barrel, and a centre trunnion mount (TC) supplied with the TCM1 bracket (F-SC125TC) for pivoting applications. The adjustable air cushion (28 mm) decelerates the 32 mm rod smoothly, protecting the end caps during high-cycle operation.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X900STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X900STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 900 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 SC125X900STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×900 | 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 SC125X900STC Is Used
Palletizer Pushers
The 900 mm stroke and 11045 N of force at 0.9 MPa efficiently push heavy pallet layers onto wrapping stations, with the trunnion mount absorbing the pivoting motion of the linkage.
Heavy-Duty Clamping
Generates up to 11045 N for securing large weldments or engine blocks in a fixture. The built-in magnet provides clamp/unclamp confirmation via barrel-mounted sensors.
Diverter Gates
The centre trunnion mount allows the cylinder to pivot as it extends 900 mm to divert heavy pallets or bulk materials on high-capacity conveyor lines.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X900STC the Right Cylinder?
Select the SC125 bore when your application needs between 6136 N and 11045 N of push force. If your load is lighter, stepping down to the SC100 bore provides 3927 N at 0.5 MPa in a more compact package. For a 900 mm stroke, ensure the rod is protected from side loads; an external guide or a guided cylinder is strongly recommended to prevent rod bearing wear and bending.
For a direct replacement, match five key points: 125 mm bore, 900 mm stroke, PT port thread, centre trunnion (TC) mounting, and the built-in magnet (-S). This model is an ISO 6430 class tie-rod cylinder and is dimensionally interchangeable only with another AirTAC SC125 of the same configuration.
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 SC125X900STC FAQ
At 0.7 MPa, the push force is 8590 N, and the pull force is 5734 N. The maximum push force at the 0.9 MPa operating limit is 11045 N.
A 900 mm stroke on a 32 mm rod is susceptible to bending under side loads. It is critical to use an external guide rail or rod support to absorb transverse forces, preventing premature seal and bearing failure.
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