Airtac SE125 Standard Cylinder SE125X630
The AirTAC Airtac SE125 Standard Cylinder SE125X630 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 630mm 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
- Stroke630 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X630
The AirTAC SE125X630 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty automation. It delivers a substantial 6136 N push force at 0.5 MPa, making it well-suited for high-load pressing and heavy lifting tasks. The square extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames.
This 630 mm stroke unit features field-adjustable air cushioning at both ends to decelerate the heavy 125 mm piston smoothly near stroke limits. Note that this specific SKU lacks a built-in magnet, so it cannot directly host CMSE or DMSE position sensors without modification. The robust Ø32 mm hard-chrome rod and M27x2 thread handle high side loads, while the standardized VDMA 24562 footprint ensures seamless dimensional interchangeability with other ISO 15552 cylinders.
Airtac SE125 Standard Cylinder SE125X630 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X630 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 630 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 SE125X630
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×630 | 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 SE125X630 Is Used
Automotive Body Welding
Provides the 6136 N push force required to clamp heavy chassis panels firmly into place during robotic welding operations.
Heavy Press Staging
Utilizes its 630 mm stroke to feed thick steel blanks into large mechanical presses, absorbing end-of-stroke inertia via adjustable cushioning.
Pallet Dispenser Mechanism
Lifts and separates empty pallets from a magazine stack, where the high 5734 N retract force easily overcomes guide friction and payload weight.
Is the Airtac SE125 Standard Cylinder SE125X630 the Right Cylinder?
If 6136 N of push at 0.5 MPa is too much force, stepping down to the 80 mm bore yields 2513 N, whereas moving up is impossible as 125 mm is the largest standard SE size. Remember that a plain SE cylinder does not hold its load when air is exhausted or a valve is centered; the piston will drift. For position holding without live pressure, consider the BSE rod lock variant. To match this ISO 15552 replacement exactly, specify the 125 mm bore, 630 mm stroke, PT1/2 port, and your required mounting accessory. Because this stroke extends 630 mm, the long unsupported rod is prone to bearing bending under side loads; always incorporate an external guide to prevent premature seal wear.
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 SE125X630 FAQ
At 0.5 MPa, the SE125X630 delivers 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 for this 125 mm bore cylinder is 30-500 mm/s.
No, the standard SE cylinder does not hold its position when air is lost or the valve is centered; the piston will drift. The adjustable air cushion only decelerates the piston near the stroke ends and does not function as a brake. If your application requires true load holding, you need the BSE rod lock variant or an external pilot-operated check valve.
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