Airtac SE125 Standard Cylinder SE125BX100
The AirTAC Airtac SE125 Standard Cylinder SE125BX100 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 100mm 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
- Stroke100 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125BX100
The AirTAC SE125BX100 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic motion. Delivering a robust 6136 N push force at 0.5 MPa (8590 N at 0.7 MPa), it handles substantial loads with precision. This specific configuration features a SUS304 stainless steel rod (option B), making it highly suitable for corrosive or washdown environments where standard carbon steel rods would degrade.
Built with an extruded aluminum barrel that eliminates external tie rods, the body is structurally compact and inherently resistant to corner-edge corrosion. The integrated sensor grooves on three sides allow flexible mounting of position switches, though this particular SKU ships without a magnet. Field-adjustable pneumatic cushioning at both ends allows technicians to tune end-of-stroke deceleration, softening hard mechanical stops to protect payload integrity.
Airtac SE125 Standard Cylinder SE125BX100 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125BX100 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 100 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 SE125BX100
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SE125BX100 Is Used
Palletizer Case Pusher
Drives heavy corrugated cases onto pallets in food-grade packaging lines, utilizing the 6136 N thrust and SUS304 rod to withstand frequent washdowns.
Press Die Ejection
Ejects dense stamped metal parts from progressive dies, using the 8590 N force at 0.7 MPa to overcome die-stripping friction reliably.
Bottling Line Diverter
Routes filled glass beverage bottles at line junctions, where the stainless rod resists caustic CIP cleaning chemicals and the 100 mm stroke executes rapid lateral shifts.
Is the Airtac SE125 Standard Cylinder SE125BX100 the Right Cylinder?
When sizing this 125 mm bore actuator, evaluate your dynamic thrust carefully. Stepping down to the 100 mm bore drops the 0.5 MPa push output to 3927 N, which may undershoot high-inertia load requirements. Conversely, the 125 mm bore is the largest in the SE standard range, offering the maximum 6136 N thrust available. Because this is a standard double-acting cylinder, it cannot hold a load vertically if air pressure is lost or the valve is centered; for fail-safe position holding, consider the BSE series with an integrated rod lock. For ISO 15552 dimensional replacements, match the 100 mm stroke, PT1/2 port, and required mounting accessory. The Ø32 mm rod and M27x2 thread provide high structural rigidity, but any stroke exceeding 300 mm on this heavy bore should incorporate an external guide rail to prevent rod-bearing bending under side loads.
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 SE125BX100 FAQ
At 0.5 MPa, the push force is 6136 N and the pull force is 5734 N. At 0.7 MPa, the push force reaches 8590 N. The maximum operating pressure is 1.0 MPa, yielding a maximum push force of 1252 kgf.
Yes, the SE125BX100 is dimensionally interchangeable per ISO 15552 / VDMA 24562 standards. You can drop it into existing mounts matching the 125 mm bore, 100 mm stroke, and PT1/2 porting. Note that this unit lacks a sensor magnet, so if your application requires position feedback, CMSE or DMSE switches will not function without a magnetized piston.
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