Airtac AIRTAC SC125-160 Standard Cylinder SC125X185S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X185S is a genuine double-acting standard air cylinder with a Ø125mm bore and 185mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke185 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X185S
The SC125X185S is a double-acting single-rod tie-rod cylinder delivering 6136 N push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). Its 185 mm stroke suits medium-travel clamping and pressing operations where position feedback is essential.
This model carries the -S suffix, embedding a magnet in the piston so CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the barrel. The 32 mm diameter rod with M27x2 thread and 28 mm adjustable air cushion at each end provide robust deceleration for heavy payloads. Body length A is 203 mm, making the extended length approximately 388 mm.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X185S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X185S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 185 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 SC125X185S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×185 | 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 SC125X185S Is Used
Heavy-Duty Clamping
The 6136 N push force at 0.5 MPa securely clamps large weldments and castings. The built-in magnet enables end-of-stroke confirmation via barrel-mounted sensors.
Pallet Stop & Lift
With 11045 N available at 0.9 MPa, this cylinder stops and lifts heavy pallets on conveyor lines. Adjustable cushioning absorbs impact quietly.
Press-Fit Assembly
Delivers controlled force for bearing or bushing insertion. Sensor feedback confirms full stroke completion before the next cycle starts.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X185S the Right Cylinder?
For higher force at the same pressure, step up to the SC160 bore (10053 N at 0.5 MPa). If 6136 N exceeds the requirement, the SC100 bore (3927 N at 0.5 MPa) may reduce air consumption. The 185 mm stroke is within the 1500 mm maximum standard stroke for bore 125.
When replacing this cylinder, match five points: 125 mm bore, 185 mm stroke, PT1/2 port thread, the built-in magnet (-S), and any mounting accessory. The SC series is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders. For strokes over 300 mm on this bore, consider an external guide to protect the 32 mm rod from side-load bending.
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 SC125X185S FAQ
At 0.5 MPa the push force is 6136 N and pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix indicates a built-in magnet. AirTAC CMSG, DMSG, or EMSG sensors clamp onto the barrel tie-rods to detect piston position without additional brackets.
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