Airtac AIRTAC SC125-160 Standard Cylinder SC125X400
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X400 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 SC125X400
The SC125X400 is a double-acting tie-rod cylinder engineered for heavy linear force applications. Operating at 0.5 MPa, this 125 mm bore actuator generates 6136 N of push force and 5734 N on the pull stroke, scaling to a substantial 11045 N at the maximum operating pressure of 0.9 MPa.
With a 400 mm stroke, a 32 mm diameter piston rod, and a 28 mm adjustable air cushion, it provides robust, controlled motion. The body length A is 203 mm, and the PT1/2 port supplies ample flow for the 30-500 mm/s speed range typical of this ISO 6430 class cylinder.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X400 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X400 |
|---|---|
| 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 SC125X400
| 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 SC125X400 Is Used
Pallet Lifting & Transfer
The 6136 N force at 0.5 MPa easily lifts and transfers heavy pallets in material handling systems, providing reliable actuation for lift-and-carry stations.
Heavy-Duty Clamping
Ideal for large-scale welding or assembly fixtures, this cylinder delivers a controlled 11045 N clamping force at 0.9 MPa to secure heavy workpieces during machining.
Industrial Press Feed
With a 400 mm stroke and high force, it serves as a reliable feed actuator for stamping presses or injection molding machines, pushing heavy dies or molds into position.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X400 the Right Cylinder?
Select the SC125 bore when your application requires a push force between the 3927 N of the SC100 and the 10053 N of the SC160 at 0.5 MPa. The 400 mm stroke is well within the 1500 mm maximum standard range for this bore, ensuring standard lead times. For long strokes, always assess side-loading on the 32 mm rod; an external guide or a guided cylinder is recommended to prevent rod bearing wear and bending.
To match an existing installation, verify five points: bore (125 mm), stroke (400 mm), port thread (PT1/2), mounting accessory (basic, no bracket supplied), and magnet option (none). This model uses the standard PT port and TPU seals for a -20 to +70 C operating range.
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 SC125X400 FAQ
At the standard 0.5 MPa operating pressure, the push force is 6136 N and the pull force is 5734 N. The maximum push force at 0.9 MPa is 11045 N. The theoretical force at 1.0 MPa is 1251 kgf.
No. The SC series is a tie-rod cylinder, not an ISO 15552 profile cylinder. It is shorter in overall length and dimensionally different. It is a direct match only for another AirTAC SC125 tie-rod cylinder with the same 400 mm stroke, PT1/2 port, and basic mounting.
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