Airtac SE125 Standard Cylinder SE125X400
The AirTAC Airtac SE125 Standard Cylinder SE125X400 is a genuine double-acting ISO 15552 / VDMA 24562 profile-barrel air cylinder with a Ø125mm bore and 400mm 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
- Stroke400 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SE125 Standard Cylinder SE125X400
The AirTAC SE125X400 is a double-acting single-rod ISO 15552 profile cylinder engineered for heavy-duty pneumatic tasks, providing a substantial 6136 N push force at 0.5 MPa. Its square extruded aluminum barrel omits external tie rods, yielding a compact, corrosion-resistant body that mounts flush against machine frames while protecting internal mechanics.
This 125 mm bore unit features a 32 mm piston rod and field-adjustable air cushions at both ends to decelerate heavy 400 mm strokes smoothly. It arrives without a built-in position magnet, relying purely on its robust mechanical drive to shift high-mass loads.
Airtac SE125 Standard Cylinder SE125X400 Technical Specifications
| Model | Airtac SE125 Standard Cylinder SE125X400 |
|---|---|
| Series | SE ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 400 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 SE125X400
| SE | ISO 15552 / VDMA 24562 profile-barrel double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×400 | 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 SE125X400 Is Used
Injection Mold Clamping
Provides the 6136 N push at 0.5 MPa required to secure heavy injection mold halves within a 400 mm stroke before resin injection.
Press Brake Tooling
Drives upper press brake dies with reliable 8590 N thrust at 0.7 MPa, utilizing the 40 mm cushion length to soften hard end-stops.
Pallet Lift Actuation
Lifts loaded pallets in packaging lines, where the 125 mm bore handles high mass and the tie-rod-free profile resists workshop debris.
Is the Airtac SE125 Standard Cylinder SE125X400 the Right Cylinder?
Generating 6136 N of thrust at 0.5 MPa, this model fits high-force demands. If your load is lighter, the 100 mm bore offers 3927 N of push, whereas stepping up is limited as 125 mm is the largest standard SE size. Because the stroke is 400 mm, the extended 32 mm rod and M27x2 thread carry significant side-load potential; always support the load with an external guide to prevent rod-bearing bending.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a direct retrofit for standardized mounting hardware. Remember that the adjustable end cushions only decelerate motion near stroke end; this plain cylinder will drift if air pressure is lost, so integrate a BSE rod lock for fail-safe holding.
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 SE125X400 FAQ
At 0.5 MPa, the SE125X400 delivers 6136 N of push force and 5734 N of pull force. At 0.7 MPa, push increases to 8590 N, with a maximum push of 1252 kgf at 1.0 MPa. The operating speed range is 30-500 mm/s.
It is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other ISO 15552 cylinders using standard PT1/2 ports. However, it lacks a position magnet and cannot hold a load unpowered; you must add an external rod lock or pilot-operated check valve for fail-safe positioning.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SE125 Standard Cylinder SE125X400
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.