Airtac AIRTAC SC125-160 Standard Cylinder SC125X250SH
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X250SH is a genuine double-acting standard air cylinder with a Ø125mm bore and 250mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke250 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X250SH
The SC125X250SH is a large-bore double-acting tie-rod cylinder engineered for heavy industrial force requirements, delivering 6136 N of push force at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. This model features a 250 mm stroke, a robust 32 mm piston rod with M27x2 knuckle threads, and a 28 mm adjustable air cushion at each end to decelerate high inertial loads smoothly.
Equipped with a built-in magnet (-S suffix) and high-temperature Viton (FKM) seals (-H suffix), this cylinder supports barrel-mounted CMSG/DMSG/EMSG sensors and operates reliably in ambient temperatures from 0 to +150 °C. The PT1/2 port threads and 203 mm body length A provide a compact yet powerful pneumatic solution for demanding hot-environment automation tasks.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X250SH Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X250SH |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 250 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 SC125X250SH
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×250 | 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 SC125X250SH Is Used
High-Temperature Foundry Actuation
Viton seals enable reliable operation in ambient temperatures up to 150 °C, making this cylinder ideal for clamping molds, opening furnace doors, or actuating dampers in foundries and heat-treatment facilities.
Heavy-Duty Pressing & Stamping
With a maximum theoretical force of 1251 kgf, the SC125X250SH provides the high thrust needed for hydraulic press alternatives, heavy stamping operations, and large-part assembly presses in automotive manufacturing.
Automated Sensor-Controlled Sorting
The built-in magnet allows for direct mounting of reed or solid-state sensors on the barrel, enabling precise end-of-stroke detection for automated sorting gates or large diverter mechanisms in high-temperature material handling.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X250SH the Right Cylinder?
Select the SC125 bore when your application requires a push force between 6136 N and 11045 N; for lower force requirements, stepping down to the SC100 bore provides 3927 N at 0.5 MPa. The 250 mm stroke is well within the 1500 mm maximum standard stroke for this bore, ensuring standard lead times. For this ISO 6430 class cylinder, ensure the load is guided externally if side forces are present, as the tie-rod construction is designed for axial thrust.
To guarantee a correct replacement, match five key specifications: the 125 mm bore, 250 mm stroke, PT1/2 port thread, the built-in magnet for sensor compatibility, and the Viton seal material for high-temperature operation. This model uses the standard basic mount; confirm that your existing mounting brackets, such as the F-SC125LB foot mount or F-SC125CB rear double clevis, are correctly specified for your application.
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 SC125X250SH FAQ
At 0.5 MPa operating pressure, the cylinder provides 6136 N of push force and 5734 N of pull force. 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 that is shorter in overall length than a standard ISO 15552 cylinder, so it is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC125 tie-rod cylinder with the same bore, stroke, port thread, magnet option, and seal material.
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