Airtac AIRTAC SC125-160 Standard Cylinder SC125X500
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X500 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 SC125X500
The SC125X500 is a heavy-duty double-acting tie-rod cylinder delivering 6136 N push force at 0.5 MPa and up to 11045 N at 0.9 MPa operating pressure. With a 32 mm diameter piston rod and M27×2 rod thread, this 125 mm bore actuator handles substantial linear loads in pressing, clamping, and material-handling stations.
This model uses a 500 mm stroke, well within the 1500 mm maximum standard stroke for bore 125. The adjustable air cushion (28 mm length) decelerates the piston smoothly at end-of-travel, reducing impact stress on the end caps. Body length A is 203 mm, giving a total extended length of approximately 703 mm. Standard PT1/2 ports and TPU seals suit filtered-air systems operating from -20 to +70 °C.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X500 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X500 |
|---|---|
| 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 SC125X500
| 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 SC125X500 Is Used
Pallet Stop & Lift Gates
The 6136 N push force at 0.5 MPa easily raises heavy pallet stops or lift-and-transfer gates in conveyor lines, with the 500 mm stroke providing ample lift height for pallet handling.
Heavy-Duty Clamping & Pressing
Delivers up to 11045 N at 0.9 MPa for pneumatic press fixtures, weldment clamping, and assembly jigs. The adjustable cushion protects tooling by softening the clamp impact at end-of-stroke.
Diverter & Pusher Stations
The 500 mm stroke and 32 mm rod push heavy cartons or totes off a main conveyor onto a spur line. The tie-rod construction withstands the repetitive side loads common in high-cycle sortation.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X500 the Right Cylinder?
Choose the SC125 bore when your application needs 6136 N push at 0.5 MPa. If force requirements are lower, step down to the SC100 bore (3927 N at 0.5 MPa) to reduce air consumption and physical size. For higher force, the SC160 bore delivers 10053 N at 0.5 MPa. At 500 mm stroke, the 32 mm rod is robust, but if the load applies significant side force or the rod is guided only at the piston, consider an external linear guide or a guided-cylinder configuration to prevent rod bending and premature bearing wear.
For replacement, match five points: bore (125 mm), stroke (500 mm), PT1/2 port thread, basic mounting (no accessory bracket), and the absence of a magnet. This SC125X500 is a direct replacement for another AirTAC SC125X500 tie-rod cylinder with 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 SC125X500 FAQ
At 0.5 MPa the push force is 6136 N (pull 5734 N). At 0.7 MPa push rises to 8590 N, and at the maximum operating pressure of 0.9 MPa it reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf. Always use the regulated pressure at the cylinder inlet for force calculations.
Yes, provided the original is an AirTAC SC125X500 tie-rod cylinder with PT1/2 ports, basic mounting, and no magnet. The SC series is not dimensionally interchangeable with ISO 15552 cylinders—it is a shorter tie-rod design. Verify port thread type (PT vs G), mounting accessory, and magnet option before ordering.
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