Airtac SE125 Standard Cylinder SE125X1200
The AirTAC Airtac SE125 Standard Cylinder SE125X1200 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 1200mm stroke, PT1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ125 mm
- Stroke1200 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X1200
The AirTAC SE125X1200 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. Operating at 0.5 MPa, it delivers a substantial 6136 N push force and 5734 N retract force, peaking at 1252 kgf under 1.0 MPa. The extruded aluminum barrel eliminates external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames.
This 125 mm bore unit features a 32 mm rod and a PT1/2 port. Because this SKU lacks the -S magnet, it is not equipped for AirTAC CMSE or DMSE position sensing out of the box. Field-adjustable pneumatic cushioning at both ends allows technicians to tune end-of-stroke deceleration, softening hard impacts during high-inertia cycles.
Airtac SE125 Standard Cylinder SE125X1200 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X1200 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 1200 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 (0–150 °C with FKM seals) |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SE series datasheet and ISO 15552 / VDMA 24562 dimensions. Confirm against the product label before installation. Port options: PT (standard) / G (BSPP).
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SE125 Standard Cylinder SE125X1200
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×1200 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B). Seals: TPU (blank) / FKM high-temp (H) / NBR (N). Thread: PT (blank) / G. Mounting: Basic, LB, FA, FB, CA, CB, CR, TC, FTC, TCM1, TCM2. Related SE-family variants: SED (double rod), SEJ (adjustable stroke), BSE (rod lock), BSED (double-rod rod lock).
Where the Airtac SE125 Standard Cylinder SE125X1200 Is Used
Press Brake Tooling
Provides the 6136 N push force required to actuate heavy forming slides and hold large press brake tooling securely during 1200 mm positioning strokes.
Injection Mold Clamps
Generates up to 1252 kgf at 1.0 MPa to secure large injection mold halves, utilizing the 40 mm cushion length to absorb high-mass deceleration.
Palletizer Carriage
Drives the vertical lift carriage in heavy automated palletizers, where the tie-rod-free extruded profile allows flush side-mounting to the lift frame.
Is the Airtac SE125 Standard Cylinder SE125X1200 the Right Cylinder?
Stepping down to the 100 mm bore drops the 0.5 MPa push to 3927 N, while no larger standard SE bore exists, making this 125 mm unit the maximum thrust option. If a machine loses air pressure, this cylinder cannot hold its load and will drift; apply an external rod lock or pilot-operated check valve for fail-safe positioning. With a 1200 mm stroke, the unsupported rod length is highly susceptible to bending under side loads—always incorporate an external linear guide to prevent rod-bearing damage. As a dimensionally interchangeable ISO 15552 cylinder, it serves as a direct retrofit for other ISO 15552 profile cylinders using identical mounting hardware.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for CMSE/DMSE 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 (LB/FA/FB/CA/CB/CR/TC/FTC/TCM1/TCM2).
- check Installation by qualified personnel per AirTAC docs.
Airtac SE125 Standard Cylinder SE125X1200 FAQ
At 0.5 MPa, the SE125X1200 outputs 6136 N push and 5734 N pull. At 0.7 MPa, push increases to 8590 N, with a maximum push of 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
Yes, it is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 cylinders using standard mounting accessories. However, the adjustable air cushion only decelerates the piston near stroke end; it does not act as a brake, so the cylinder will drift if air pressure is lost.
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