Airtac AIRTAC SC125-160 Standard Cylinder SC125X50H
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X50H is a genuine double-acting standard air cylinder with a Ø125mm bore and 50mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke50 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X50H
The SC125X50H is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a short 50 mm stroke. At 0.5 MPa it generates 6136 N pushing and 5734 N pulling force, while at the maximum operating pressure of 0.9 MPa the push force reaches 11045 N — ideal for compact stations needing high clamping or pressing power in a limited linear envelope.
This variant is equipped with Viton (FKM) seals, shifting the operating temperature range to 0–150 °C and making it suitable for hot environments or applications with aggressive media. The 32 mm diameter piston rod and PT1/2 ports supply ample flow, and the 28 mm adjustable air cushion at each end decelerates the 50 mm stroke smoothly. Body length A is 203 mm, giving a total extended length of approximately 253 mm.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X50H Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X50H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 50 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 SC125X50H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×50 | 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 SC125X50H Is Used
Hot Press & Clamping
Viton seals withstand 0–150 °C, making the SC125X50H suitable for heated platen presses, thermoforming clamps, and foundry pattern-draw stations where standard seals would degrade.
Short-Stroke Punching
With 11045 N of force at 0.9 MPa across just 50 mm of travel, this cylinder excels in punch-press tool actuation, rivet setting, and high-force stamping in tight machine frames.
Die Cushion & Ejection
The compact 253 mm extended length and 6136 N push at 0.5 MPa suit die-cushion pins and heavy-part ejectors inside injection-mould tools, especially where mould temperatures run high.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X50H the Right Cylinder?
Choose the SC125X50H when a 125 mm bore force envelope is required but travel is minimal — clamping, stamping, or ejector functions. If the application needs less force, the SC100 bore delivers 3927 N push at 0.5 MPa; for even higher force, the SC160 bore provides 10053 N at the same pressure. The short 50 mm stroke keeps the rod well-supported inside the bearing, so side-load risk is inherently low.
For replacement, match five points: 125 mm bore, 50 mm stroke, PT1/2 ports, Viton (H) seal material, and basic (no bracket) mounting. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders. If you later add a magnet, order the SC125X50SH variant and clamp CMSG/DMSG sensors directly onto the barrel.
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 SC125X50H FAQ
At 0.5 MPa the push force is 6136 N and pull force is 5734 N. At 0.7 MPa push reaches 8590 N, and at the maximum operating pressure of 0.9 MPa it delivers 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No. The AirTAC SC series is a tie-rod cylinder and is physically shorter than an equivalent ISO 15552 cylinder, so mounting dimensions and body length differ. It replaces another AirTAC SC125 cylinder of the same bore, stroke, port thread, and seal material. For ISO 15552 interchangeability, consult the AirTAC SI series.
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