Airtac AIRTAC SC125-160 Standard Cylinder SC125X400TC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X400TC is a genuine double-acting standard air cylinder with a Ø125mm bore and 400mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke400 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X400TC
The AirTAC SC125X400TC is a double-acting tie-rod cylinder delivering a substantial 6136 N push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). Its 32 mm diameter piston rod and 28 mm adjustable air cushion are engineered for heavy linear tasks where controlled deceleration is essential.
This model features a centre trunnion mount (TC), supplied with the TCM1 bracket (accessory code F-SC125TC), allowing the cylinder to pivot as the load swings through an arc. The 400 mm stroke sits well within the 1500 mm maximum standard stroke for the 125 mm bore, and the PT1/2 port thread ensures straightforward pneumatic connection.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X400TC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X400TC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 400 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 SC125X400TC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×400 | 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 SC125X400TC Is Used
Heavy Part Orientation
Pivots large fixtures or chutes on conveyors, using the trunnion mount to swing heavy components through a 400 mm linear stroke.
Clamping & Pressing
Generates up to 11045 N of force at 0.9 MPa for holding workpieces during welding, assembly, or heavy-duty pressing operations.
Agricultural Machinery
Actuates gates, diverters, or lift mechanisms on harvesters and spreaders, with the trunnion mount allowing free angular movement.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X400TC the Right Cylinder?
For applications requiring a pivoting actuator, the TC centre trunnion mount is ideal, absorbing side loads on the pivot axis. If your force requirement is lower, stepping down to the 100 mm bore provides 3927 N at 0.5 MPa; for higher thrust, the 160 mm bore offers 10053 N. At this 400 mm stroke, ensure the rod is not subjected to direct side loading—use an external guide rail or a guided cylinder if the load is not perfectly axial, as bending moments can damage the rod bearing.
To replace an existing unit, match five points: 125 mm bore, 400 mm stroke, PT1/2 port thread, centre trunnion (TC) mounting, and the absence of a magnet. This is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profiles; it is an ISO 6430 class 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 SC125X400TC FAQ
At 0.7 MPa operating pressure, the push force is 8590 N. The maximum push force at 0.9 MPa is 11045 N. These values are based on the 125 mm bore piston area.
No. The SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 cylinder, so it is not dimensionally interchangeable. It is an ISO 6430 class cylinder. Replacements should match another AirTAC SC tie-rod cylinder of the same bore, stroke, mounting, and port thread.
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