Airtac SE125 Standard Cylinder SE125X950S
The AirTAC Airtac SE125 Standard Cylinder SE125X950S 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 SE125X950S
The AirTAC SE125X950S 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 robust Ø32 mm piston rod with an M27x2 thread. Because this is a made-to-order 950 mm stroke exceeding the 800 mm standard tier, it is purpose-built for long-travel industrial applications.
The extruded aluminum barrel lacks external tie rods, which streamlines mounting flush to machine frames and prevents debris accumulation. An integrated -S magnet enables position detection using CMSE reed or DMSE electronic sensors. Field-adjustable pneumatic cushioning at both ends allows you to dial in end-of-stroke deceleration, protecting heavy payloads from hard impacts.
Airtac SE125 Standard Cylinder SE125X950S Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X950S |
|---|---|
| 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 SE125X950S
| 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 SE125X950S Is Used
Press Tonnage Diversion
Diverts heavy metal stamping press scrap chutes over a 950 mm travel, using the 6136 N push force to reliably clear obstructed billets.
Automotive Skid Ejection
Ejects loaded automotive assembly skids from a machining cell, relying on the 125 mm bore thrust to overcome conveyor rolling resistance.
Pallet Dispenser Pusher
Separates bottom pallets from a magazine stack over a 950 mm stroke, where the high pull force retracts the rod safely under heavy stack weight.
Is the Airtac SE125 Standard Cylinder SE125X950S the Right Cylinder?
This 125 mm bore provides maximum standard thrust, yielding 6136 N push at 0.5 MPa. If your load requires less force, stepping down to the 100 mm bore yields 3927 N push, saving valuable space and air consumption. As the largest standard SE size, there is no larger bore available in this series. Because the 950 mm stroke creates a long lever arm, unsupported extension can generate severe bending moments on the rod bearing; always utilize an external guide rail to prevent premature seal wear. Note that the air cushions only decelerate the piston near stroke end and do not hold a load if air pressure is lost—use a BSE rod lock for position holding. As a true ISO 15552 cylinder, it drops in dimensionally with standard mounting accessories and PT1/2 ports.
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 SE125X950S FAQ
The SE125X950S delivers 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, and a maximum push of 1252 kgf at 1.0 MPa. The 950 mm stroke is a non-standard made-to-order length beyond the 800 mm standard limit for this bore.
Yes, the SE125X950S is dimensionally interchangeable per ISO 15552, allowing a drop-in replacement for other standard profile cylinders using existing PT1/2 ports and mounting hardware. It does not hold position unpowered; the adjustable air cushion only decelerates the piston near stroke end, so you need a BSE rod lock for fail-safe holding.
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