Airtac SE125 Standard Cylinder SE125BX1800S
The AirTAC Airtac SE125 Standard Cylinder SE125BX1800S is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 1800mm 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
- Stroke1800 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125BX1800S
The AirTAC SE125BX1800S 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, scaling up to 8590 N at 0.7 MPa. The 1800 mm stroke is a made-to-order length exceeding the standard 1500 mm maximum, designed for applications requiring exceptionally long travel. Equipped with a SUS304 stainless steel rod (code B), this unit is purpose-built for corrosive environments and washdown duty.
The extruded aluminum barrel features a clean profile without external tie rods, preventing debris buildup while offering a compact footprint that mounts flush against machine frames. Integrated sensor grooves on three sides accept CMSE reed or DMSE electronic switches, leveraging the built-in -S magnet for precise end-of-stroke positioning. Field-adjustable pneumatic cushioning at both ends allows technicians to tune the deceleration of the heavy 32 mm rod, softening hard impacts at high cycling speeds.
Airtac SE125 Standard Cylinder SE125BX1800S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125BX1800S |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 1800 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 SE125BX1800S
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×1800 | 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 SE125BX1800S Is Used
Automotive Body Panel Press
Provides the 8590 N push force at 0.7 MPa required to form and stamp large sheet metal body panels, while the SUS304 rod resists corrosive drawing compounds.
Palletizer Transfer Arm
Utilizes the 1800 mm stroke to push fully loaded pallets across transfer stations, relying on the adjustable cushion to stop the heavy 125 mm bore payload smoothly.
Wastewater Screen Rake
Drives a 1.8-meter raking cycle to clear debris from treatment plant intake screens, where the SUS304 rod withstands constant chemical and moisture exposure.
Is the Airtac SE125 Standard Cylinder SE125BX1800S the Right Cylinder?
Selecting the SE125BX1800S requires evaluating both force and stroke length. If 6136 N push at 0.5 MPa is excessive for your payload, stepping down to the 100 mm bore yields 3927 N, saving space and air consumption. Conversely, if you need even more thrust, there is no larger standard ISO 15552 bore in this range, making the 125 mm the ultimate choice for maximum output up to 1252 kgf at 1.0 MPa. Because this cylinder uses a SUS304 rod for washdown resistance, ensure your environment justifies the stainless upgrade over the standard hard-chrome carbon steel.
At 1800 mm of travel, the unsupported mass of the 32 mm rod introduces significant bending moments and side-load risks to the front bearing. An external guide rail is strongly recommended to prevent premature seal wear and rod deflection. Note that the adjustable air cushion only decelerates the piston near stroke end; it does not lock or hold the load. If air pressure is lost or the valve is centered, the cylinder will drift, requiring a BSE rod lock or external pilot-operated check valve for fail-safe positioning. As a true ISO 15552 profile cylinder, it serves as a drop-in dimensional replacement for other ISO 15552 cylinders, utilizing standard PT1/2 ports and an 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 SE125BX1800S FAQ
This 125 mm bore cylinder generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force is 8590 N, with a maximum push capacity of 1252 kgf at 1.0 MPa. The operating speed range is 30-500 mm/s.
Yes, it is dimensionally interchangeable with any standard ISO 15552 profile cylinder, matching the mounting interface and PT1/2 ports. However, it cannot hold a load if air pressure is lost; the adjustable cushion only decelerates the piston at stroke end. For position holding, use a BSE rod lock variant.
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