Airtac AIRTAC SC125-160 Standard Cylinder SC125X35TC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X35TC is a genuine double-acting standard air cylinder with a Ø125mm bore and 35mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke35 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X35TC
The SC125X35TC is a robust double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the maximum 0.9 MPa operating pressure). Its 35 mm stroke suits short-throw clamping, pressing, and positioning tasks where a large 125 mm bore provides substantial force in a compact actuation length.
This model features a centre trunnion mount (TC) with the TCM1 bracket included, allowing the cylinder to pivot during operation—ideal for swinging or articulating linkages. The 32 mm diameter piston rod and 28 mm adjustable air cushion ensure smooth deceleration at end-of-stroke, protecting the assembly from impact.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X35TC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X35TC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 35 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 SC125X35TC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×35 | 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 SC125X35TC Is Used
Heavy-Duty Clamping
Applies up to 11045 N of force at 0.9 MPa for secure workpiece clamping in machining centres and welding fixtures.
Short-Stroke Pressing
The 35 mm stroke and trunnion pivot suit short-throw pressing, riveting, or staking operations on assembly lines.
Articulated Linkages
Centre trunnion mount allows the cylinder body to swing, making it suitable for dump mechanisms and pivoting machine guards.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X35TC the Right Cylinder?
For applications needing slightly less force, stepping down to the 100 mm bore reduces push force to 3927 N at 0.5 MPa. If longer strokes are required, the SC125 supports standard strokes up to 1500 mm. This TC configuration ships with the F-SC125TC trunnion bracket set.
When replacing an existing cylinder, match all five key points: 125 mm bore, 35 mm stroke, PT port thread, centre trunnion (TC) mounting, and confirm the magnet option (this model has no built-in magnet). The SC series is a tie-rod design—verify mounting dimensions against another AirTAC SC125, as it 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 SC125X35TC FAQ
At 0.7 MPa supply pressure, the SC125 bore generates 8590 N of push force and 5734 N of pull force on the retract stroke.
No. The SC125X35TC is a double-acting cylinder that requires continuous air pressure to maintain position. If pressure is lost or the valve is centred, the piston can drift. For load holding without live pressure, add a pilot-operated check valve or an external rod brake.
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