Airtac SE125 Standard Cylinder SE125X500FB
The AirTAC Airtac SE125 Standard Cylinder SE125X500FB is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 500mm 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
- Stroke500 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X500FB
The AirTAC SE125X500FB is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatics. It delivers a substantial 6136 N push force at 0.5 MPa, utilizing a 125 mm bore and a 500 mm stroke. This specific SKU includes a rear flange (FB) mounting configuration and uses a standard PT1/2 port.
Unlike traditional tie-rod actuators, the SE series relies on an extruded aluminum barrel with integrated sensor grooves on three sides, yielding a compact, corrosion-resistant body that mounts flush. The field-adjustable pneumatic cushioning at both ends allows technicians to tune end-of-stroke deceleration via a set screw, softening hard mechanical stops for heavy 1252 kgf loads moving at up to 500 mm/s. Note that this specific SKU lacks a built-in magnet, meaning it is not equipped for CMSE or DMSE position sensing without modification.
Airtac SE125 Standard Cylinder SE125X500FB Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X500FB |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 500 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 SE125X500FB
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×500 | 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 SE125X500FB Is Used
Injection Molding Extraction
Provides the 6136 N push force required to positively eject heavy molded parts from large injection molding machines, utilizing the 500 mm stroke for deep mold reach.
Press Tonnage Clamping
Secures heavy steel plates or large structural members in hydraulic press setups, where the 1252 kgf maximum load capacity and rigid FB rear flange withstand high axial stress.
Palletizer Elevation
Drives the vertical lift arm in heavy-end-of-line palletizers, moving packaged goods through a 500 mm vertical cycle while the adjustable cushion softens the descent.
Is the Airtac SE125 Standard Cylinder SE125X500FB the Right Cylinder?
At 0.5 MPa, this 125 mm bore generates 6136 N of push force. If you need slightly less force, stepping down to the 100 mm bore yields 3927 N push; as the largest standard SE bore, there is no larger step-up available in this series. When replacing an existing ISO 15552 actuator, match the 125 mm bore, 500 mm stroke, PT1/2 port, and FB rear flange mounting interface for a true drop-in fit.
Because this model features a 500 mm stroke, the unsupported rod length introduces a higher risk of rod-bearing bending under side loads; an external guide rail is strongly recommended to prevent premature seal wear. Remember that the adjustable air cushion only decelerates the piston near the stroke end—it does not hold the load. If the application must maintain position without live air pressure, you must integrate an external pilot-operated check valve or step up to a BSE rod-lock variant.
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 SE125X500FB FAQ
This 125 mm bore cylinder provides 6136 N push and 5734 N pull at 0.5 MPa, and 8590 N push at 0.7 MPa. The maximum push force is 1252 kgf at 1.0 MPa. The operating speed range is 30-500 mm/s.
Yes, the SE125X500FB is dimensionally interchangeable per ISO 15552 standards. You can drop-in replace equivalent ISO 15552 profile cylinders by matching the 125 mm bore, 500 mm stroke, PT1/2 port, and FB rear flange mounting dimensions.
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