Airtac AIRTAC SC125-160 Standard Cylinder SC125X450STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X450STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 450mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke450 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X450STC
The AirTAC SC125X450STC is a double-acting single-rod pneumatic cylinder delivering 6136 N push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). With a 125 mm bore and a 450 mm stroke, this ISO 6430 class tie-rod cylinder suits medium-to-heavy linear actuation tasks where a compact body length (A=203 mm) is valued.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors, plus a centre trunnion (TC) mount supplied with the TCM1 bracket (F-SC125TC). The 32 mm piston rod with M27x2 thread and 28 mm adjustable air cushion provide smooth deceleration. Standard PT ports and TPU seals cover a -20 to +70 °C operating range.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X450STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X450STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 450 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 SC125X450STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×450 | 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 SC125X450STC Is Used
Pallet & Case Handling
The 6136 N push force at 0.5 MPa reliably diverts, stops, or lifts heavy pallets and cases on conveyor lines, with the trunnion mount allowing the cylinder to pivot as it actuates.
Heavy Clamping & Pressing
Delivers up to 11045 N at 0.9 MPa for holding large weldments or composite lay-ups in fixtures. The built-in magnet enables end-of-stroke confirmation via barrel-mounted sensors.
Damper & Gate Actuation
The 28 mm adjustable air cushion and 32 mm rod suit heavy gate or damper drives where the cylinder must swing on a centre trunnion, absorbing inertial shock at stroke ends.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X450STC the Right Cylinder?
Choose the SC125 bore when the SC100 (3927 N at 0.5 MPa) is borderline; step down to SC100 if 6136 N is over-specified and you can save space. For this 450 mm stroke, ensure the rod is not subjected to side loads—long unsupported strokes on a single rod can create bending moments at the rod bearing. Use an external linear guide or a guided cylinder if the load is not perfectly axial.
To replace an existing cylinder, match five points: 125 mm bore, 450 mm stroke, PT port thread, centre trunnion (TC) mounting with F-SC125TC bracket, and the -S magnet for sensor compatibility. The SC is a tie-rod design, shorter than ISO 15552, so only another AirTAC SC of the same configuration is a direct drop-in.
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 SC125X450STC 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 reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf (approx. 12265 N), but the proof pressure is 1.5 MPa and the operating range is 0.15–1.0 MPa.
Yes, the -S suffix provides a built-in magnet, so CMSG, DMSG, or EMSG sensors clamp directly onto the tie-rod barrel. The SC series is a tie-rod cylinder and is shorter than an ISO 15552 profile cylinder—it is not dimensionally interchangeable with ISO 15552. The 125–250 mm bores are classed as ISO 6430.
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