Airtac SE125 Standard Cylinder SE125X50SH
The AirTAC Airtac SE125 Standard Cylinder SE125X50SH is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 50mm 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
- Stroke50 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X50SH
The AirTAC SE125X50SH is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty actuation. It delivers a substantial 6136 N push force at 0.5 MPa, utilizing a 32 mm rod and a PT1/2 port to efficiently move high-inertia loads. The square extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames.
This specific configuration integrates a high-temperature FKM (Viton) seal, extending the operating thermal envelope from -20 to +150 C for demanding industrial environments. Equipped with a built-in position magnet, it interfaces directly with AirTAC CMSE reed and DMSE electronic sensors. The field-adjustable pneumatic cushioning at both ends allows technicians to tune end-of-stroke deceleration, protecting machinery from shock without relying on fixed rubber bumpers.
Airtac SE125 Standard Cylinder SE125X50SH Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X50SH |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 50 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 SE125X50SH
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×50 | 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 SE125X50SH Is Used
Injection Mold Clamping
Generates 6136 N of thrust at 0.5 MPa to secure heavy injection mold halves, utilizing the FKM seal to withstand radiant heat from heated platens up to 150 C.
Hydraulic Press Ejection
Exerts up to 1252 kgf at 1.0 MPa to eject dense formed parts from a hydraulic press bed, relying on the 40 mm adjustable cushion to absorb sudden kinetic energy.
Foundry Core Shifting
Shifts heavy sand core assemblies in hot foundry environments, where the Viton seal prevents premature degradation and the -S magnet triggers DMSE sensors for positioning.
Is the Airtac SE125 Standard Cylinder SE125X50SH the Right Cylinder?
Selecting this 125 mm bore is appropriate when applications require up to 1252 kgf of maximum thrust at 1.0 MPa. If you need to step down to the next available size, the 100 mm bore provides 3927 N of push force at 0.5 MPa; stepping up is not possible as 125 mm is the largest standard SE dimension. Because this is a short 50 mm stroke, rod-bearing bending is negligible, but note that a plain SE cylinder cannot hold a load vertically without live air pressure—consider the BSE rod lock variant if pneumatic failure must not cause drift. As a true ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for comparable 125 mm bore cylinders, retaining the standard PT1/2 port and M27x2 rod thread.
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 SE125X50SH FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
Yes, the SE125X50SH is dimensionally interchangeable per ISO 15552 standards. You can use it as a drop-in replacement for other 125 mm bore ISO 15552 profile cylinders, maintaining identical mounting, PT1/2 port, and M27x2 rod thread dimensions.
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