Airtac SE125 Standard Cylinder SE125BX15SFB
The AirTAC Airtac SE125 Standard Cylinder SE125BX15SFB is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 15mm 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
- Stroke15 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125BX15SFB
The AirTAC SE125BX15SFB is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty linear motion. It generates a substantial 6136 N push force at 0.5 MPa, making it highly capable of moving massive loads. The extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machinery frames.
This specific configuration features a SUS304 stainless steel piston rod (code B) for superior resistance to moisture and washdown chemicals. A built-in magnet (code S) enables seamless position tracking with AirTAC CMSE reed or DMSE electronic sensors. The field-adjustable pneumatic cushioning at both stroke ends allows precise deceleration tuning to absorb harsh mechanical impacts at high speeds.
Airtac SE125 Standard Cylinder SE125BX15SFB Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125BX15SFB |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 15 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 SE125BX15SFB
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×15 | 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 SE125BX15SFB Is Used
Heavy Press Stamping
Delivers 6136 N of thrust at 0.5 MPa to form thick-gauge sheet metal blanks in automated hydraulic press setups.
Washdown Food Processing
The SUS304 stainless steel rod resists corrosion during high-pressure caustic washdowns in large-scale meat portioning equipment.
Pallet Elevator Gates
Provides the heavy lifting force needed to raise fully loaded 1000 kg pallet gates in distribution center conveyor lines.
Is the Airtac SE125 Standard Cylinder SE125BX15SFB the Right Cylinder?
Generating 6136 N of thrust at just 0.5 MPa, this 125 mm bore cylinder is built for high-force tasks. If your application requires less power, stepping down to the 100 mm bore variant provides 3927 N of push at 0.5 MPa, which may better suit lighter loads and save space. Since 125 mm is the largest standard SE bore, there is no larger neighbor in this series; for extreme force requirements beyond 1252 kgf at 1.0 MPa, consider operating multiple cylinders in parallel.
This model includes an FB (rear flange) mounting accessory for secure rear-face installation and a PT1/2 port. Remember that an unpowered SE cylinder cannot hold a load if air pressure drops or the valve is centered—the piston will drift. For applications requiring strict position holding without live air pressure, integrate an external pilot-operated check valve or select 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 SE125BX15SFB FAQ
This 125 mm bore cylinder generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and reaches a maximum push of 1252 kgf at 1.0 MPa. It uses a PT1/2 port and operates at speeds of 30-500 mm/s.
Yes, the SE125BX15SFB is dimensionally interchangeable per ISO 15552 standards, serving as a drop-in replacement for other ISO 15552 profile cylinders. It features field-adjustable air cushions at both ends, allowing you to tune the end-of-stroke deceleration via a set screw to soften hard mechanical stops.
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