Airtac AIRTAC SC125-160 Standard Cylinder SC125X210
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X210 is a genuine double-acting standard air cylinder with a Ø125mm bore and 210mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke210 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X210
The SC125X210 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, delivering a substantial push force of 6136 N at 0.5 MPa (11045 N at the maximum operating pressure of 0.9 MPa). With a 125 mm bore and a 210 mm stroke, this model is built for heavy-duty linear actuation where high force is the primary requirement.
This ISO 6430 class cylinder features a 32 mm diameter piston rod with an M27x2 thread and a 28 mm adjustable air cushion at each end to decelerate large inertial loads smoothly. The body length A is 203 mm, giving a total extended length of approximately 413 mm. Standard PT1/2 ports supply the filtered air, and the operating temperature range is -20 to +70 °C with the default TPU seals.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X210 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X210 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 210 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 SC125X210
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×210 | 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 SC125X210 Is Used
Heavy Press & Clamping
Generates over a tonne of clamping force at standard line pressure, ideal for hydraulic-style press replacements, assembly jigs, and heavy-duty part holding fixtures.
Material Forming & Bending
The high thrust at 0.9 MPa suits light forming, bending, and punching operations where consistent, controlled pneumatic force is needed for sheet metal or composite materials.
Large Gate & Damper Actuation
Provides the muscle to open and close heavy hopper gates, diverter chutes, or large ventilation dampers in bulk handling and processing plants.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X210 the Right Cylinder?
Choose the SC125 bore when your application requires between roughly 6100 N and 11000 N of pneumatic force. If your load is lighter, stepping down to the SC100 bore (3927 N at 0.5 MPa) can reduce air consumption and physical size. For strokes of 300 mm or longer, evaluate side-load conditions carefully—the 32 mm rod can experience bending stress if the load is not guided externally.
To replace an existing cylinder, match five key points: 125 mm bore, 210 mm stroke, PT1/2 port thread, the specific mounting accessory (this basic model has no bracket), and the magnet option (this model has no built-in magnet). The SC series is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC125X210 FAQ
At the standard operating pressure of 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 reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No. The SC125X210 is a standard double-acting cylinder and will drift or drop if air pressure is lost or the directional valve is centered. The adjustable air cushion only decelerates the piston at the end of stroke; it is not a locking or holding brake. For load holding, you must add an external rod lock or a pilot-operated check valve.
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