Airtac SE125 Standard Cylinder SE125BX750S
The AirTAC Airtac SE125 Standard Cylinder SE125BX750S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 750mm 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
- Stroke750 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125BX750S
The AirTAC SE125BX750S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. It delivers a substantial 6136 N push force at 0.5 MPa and features a 750 mm stroke. Equipped with a SUS304 stainless steel rod (code B), it is purpose-built for corrosive or washdown environments where standard carbon steel rods would fail prematurely.
This model features a square extruded aluminum barrel without external tie rods, keeping the body compact and flush-mountable while resisting corrosion. The integrated magnet (-S) supports AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection. Field-adjustable air cushions at both ends allow you to tune deceleration and soften hard end stops, protecting heavy payloads moving at speeds up to 30-500 mm/s.
Airtac SE125 Standard Cylinder SE125BX750S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125BX750S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 750 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 SE125BX750S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×750 | 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 SE125BX750S Is Used
Palletizer Strapping
Drives the heavy strapping and positioning head on automated palletizers, utilizing the 6136 N push force and 750 mm stroke to span large pallet widths.
Washdown Conveyor Divert
Actuates heavy lane diverters in food-grade washdown zones, relying on the SUS304 rod to withstand harsh chemical cleaning while moving products at 30-500 mm/s.
Press Ejection
Ejects formed metal parts from large hydraulic presses, using the 40 mm adjustable cushion length to safely decelerate the 125 mm bore mass near stroke end.
Is the Airtac SE125 Standard Cylinder SE125BX750S the Right Cylinder?
If 6136 N push at 0.5 MPa is more force than your application requires, stepping down to the 80 mm bore yields 2513 N, saving valuable space and air consumption. If you need even more power, the 125 mm is the largest standard SE bore available. As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders, making it a drop-in retrofit using existing mounting hardware and PT1/2 ports.
At 750 mm of stroke, the 32 mm diameter rod and thread carry significant side-load potential, but long unsupported strokes will cause rod-bearing bending. An external guide is strongly recommended to prevent premature seal wear. Note that a plain SE cylinder does not hold its load if air pressure is lost; for position holding, consider the 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 SE125BX750S FAQ
The SE125BX750S delivers 6136 N push and 5734 pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a maximum push of 1252 kgf at 1.0 MPa. The operating speed range is 30-500 mm/s.
Yes. The SE125BX750S is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards. You can drop it into existing mounts using the standard PT1/2 port and M27x2 rod thread, provided the 750 mm stroke matches your requirement.
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