Airtac SE125 Standard Cylinder SE125X950
The AirTAC Airtac SE125 Standard Cylinder SE125X950 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 950mm 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
- Stroke950 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X950
The AirTAC SE125X950 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty actuation. It delivers a substantial 6136 N push force at 0.5 MPa and reaches a maximum output of 1252 kgf at 1.0 MPa. The extruded aluminum square barrel omits external tie rods, yielding a highly compact, corrosion-resistant body that mounts flush against machine frames without protruding hardware.
This 950 mm stroke unit features a Ø32 mm piston rod and a PT1/2 port. Because this SKU lacks the -S magnet code, it is not wired for AirTAC CMSE or DMSE position sensing out of the box. Field-adjustable pneumatic cushioning at both stroke ends allows technicians to tune deceleration precisely, softening the impact of heavy 125 mm payloads traveling at speeds up to 500 mm/s.
Airtac SE125 Standard Cylinder SE125X950 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X950 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 950 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 SE125X950
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×950 | 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 SE125X950 Is Used
Palletizer Case Pusher
Drives heavy corrugated cases onto shipping pallets at 6136 N push force, relying on the 950 mm stroke to fully span the pallet width.
Press Brake Ejector
Ejects heavy formed metal panels from a press brake bed, using the adjustable end cushions to decelerate the 125 mm bore payload smoothly.
Automotive Body Skid Indexer
Shifts welded automotive body skids along an assembly conveyor, utilizing the 950 mm stroke to advance large frames between robotic welding stations.
Is the Airtac SE125 Standard Cylinder SE125X950 the Right Cylinder?
Generating 6136 N of thrust at 0.5 MPa, this 125 mm bore cylinder is the largest standard ISO 15552 size in the AirTAC lineup. If a smaller footprint is needed, stepping down to the 100 mm bore drops the push force to 3927 N at 0.5 MPa; there is no larger standard bore available. At 950 mm of stroke, the unsupported mass of the Ø32 mm rod creates significant bending moments under side loads, making an external guide bearing strictly necessary to prevent premature seal wear.
This specific configuration uses a PT1/2 port and default TPU seals. It is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 profile cylinders while sharing standard mounting accessories. Note that a plain SE cylinder will drift if air pressure is lost or the valve is centered; applications requiring fail-safe load holding should integrate an external pilot-operated check valve or explore 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 SE125X950 FAQ
At 0.5 MPa, the SE125X950 provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N. The maximum push force is 1252 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
Yes, it is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other standard profile cylinders. This specific SKU does not have a built-in magnet (-S code omitted), so it cannot host AirTAC CMSE or DMSE electronic position sensors without modification.
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