Airtac AIRTAC SC125-160 Standard Cylinder SC125X500STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X500STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 500mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke500 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X500STC
The AirTAC SC125X500STC is a robust double-acting tie-rod cylinder delivering 6136 N of push force at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. Its 500 mm stroke is well within the 1500 mm maximum for the 125 mm bore, making it a reliable workhorse for medium-to-long linear movements. The integrated magnet allows for direct mounting of CMSG/DMSG/EMSG sensors on the barrel for precise position feedback.
This model features a centre trunnion (TC) mount, supplied with the TCM1 bracket, which allows the cylinder to pivot during operation—ideal for swinging or articulating loads. The 32 mm diameter piston rod and 28 mm adjustable air cushion ensure smooth deceleration at the end of each stroke. As an ISO 6430 class cylinder, it is built for demanding industrial environments with a standard TPU seal and PT ports.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X500STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X500STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 500 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 SC125X500STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×500 | 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 SC125X500STC Is Used
Material Handling & Sorting
The 500 mm stroke and high force output are ideal for pusher arms on heavy-duty conveyors, diverting large packages or pallets. The trunnion mount allows the cylinder to follow an arcing path.
Heavy Press & Clamping
With over a ton of force at 0.9 MPa, this cylinder excels in hydraulic-replacement clamping and light-duty pressing operations. The magnet sensors confirm clamp engagement for safety interlocks.
Agricultural Equipment Actuation
The robust tie-rod design and pivoting TC mount suit the harsh conditions of farm machinery, such as controlling chute gates or lifting heavy assemblies on harvesters and spreaders.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X500STC the Right Cylinder?
Select the SC125 bore when your application requires a force between 6136 N and 11045 N. If you need less force, stepping down to the SC100 bore provides 3927 N at 0.5 MPa. For a successful replacement, match five key points: the 125 mm bore, 500 mm stroke, PT port thread, TC centre trunnion mounting, and the built-in magnet (-S) for sensor compatibility. This is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
For this 500 mm stroke, be mindful of side loads. A long, unsupported piston rod can bend under lateral force, causing premature seal and bearing wear. Always use an external guide system or ensure the load is perfectly axial to prevent rod deflection and maximize the cylinder's service life.
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 SC125X500STC FAQ
At 0.7 MPa operating pressure, the SC125 cylinder generates a theoretical push force of 8590 Newtons. The maximum push force at 0.9 MPa is 11045 N. Always apply a safety factor for real-world dynamic loads.
Yes. The '-S' in the model code SC125X500STC indicates a built-in magnet on the piston. This allows you to clamp compatible AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the cylinder barrel's tie-rod slots to detect end-of-stroke or intermediate positions.
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