Airtac AIRTAC SC125-160 Standard Cylinder SC125X1550
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X1550 is a genuine double-acting standard air cylinder with a Ø125mm bore and 1550mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke1550 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X1550
The AirTAC SC125X1550 is a double-acting single-rod pneumatic cylinder with a 125 mm bore and an extended 1550 mm non-standard stroke, built for heavy linear actuation tasks. Operating on filtered air at 0.15-1.0 MPa, it generates a theoretical push force of 6136 N at 0.5 MPa and can reach up to 11045 N at 0.9 MPa, placing it in the high-force ISO 6430 class.
This tie-rod cylinder features a robust 32 mm diameter piston rod with an M27x2 knuckle thread and PT1/2 ports. The total extended body length is approximately 1753 mm, and the 28 mm adjustable air cushion at each end decelerates the piston smoothly to protect the end caps during high-speed cycles. As a non-standard stroke exceeding the typical 1500 mm maximum, this model is a made-to-order configuration for applications requiring extra-long reach.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X1550 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X1550 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 1550 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 SC125X1550
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×1550 | 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 SC125X1550 Is Used
Long-Stroke Material Pusher
Provides the extended 1550 mm reach needed to push heavy pallets or large components completely off a wide conveyor line, using its 11045 N peak force.
Heavy-Duty Press Feed
Transfers large steel sheets or blanks into a stamping press, where the non-standard long stroke clears the die area and the high force overcomes significant inertial loads.
Industrial Bin Tipper
Actuates a large container dumper in a foundry or recycling plant, leveraging the cylinder's robust tie-rod construction and high thrust to tilt bins weighing several hundred kilograms.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X1550 the Right Cylinder?
Select the SC125 when your application requires forces in the 6000-11000 N range. If your load is lighter, stepping down to an SC100 bore reduces the push force to 3927 N at 0.5 MPa, potentially saving space and air consumption. For strokes of this length, side loading and rod deflection are critical concerns; an unsupported 1550 mm stroke with a 32 mm rod is highly susceptible to bending under lateral forces, so always use an external linear guide or rod support to absorb side loads.
For a direct replacement, match five key specifications: the 125 mm bore, the 1550 mm stroke, the PT1/2 port thread, the basic (no bracket) mounting configuration, and the absence of a built-in magnet. This ensures dimensional and functional interchangeability with an existing AirTAC SC125 tie-rod cylinder.
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 SC125X1550 FAQ
At 0.7 MPa operating pressure, the theoretical push force is 8590 N, and the pull force on the retract stroke is 5734 N. These values are based on the 125 mm bore and 32 mm piston rod diameter.
No. The AirTAC SC series is a tie-rod cylinder that is physically shorter than a standard ISO 15552 profile cylinder, so mounting dimensions and body length will not match. It is a direct replacement only for another AirTAC SC125 tie-rod cylinder with matching port, mounting, and magnet options.
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