Airtac SAIJ125 Adjustable Cylinder SAIJ125X155-10S
The AirTAC SAIJ125 Adjustable Cylinder SAIJ125X155-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 155mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ125 mm
- Stroke155 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X155-10S
The AirTAC SAIJ125X155-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the travel by up to 10 mm. This yields a usable stroke window of 145 to 155 mm, perfect for fine-tuning end positions during commissioning without adding external stops.
Fitted with a carbon steel piston rod and tapered PT G1/2 ports, this unit includes a magnet for position sensing. You can pair it with AirTAC CMSE reed switches or DMSE solid-state sensors. The mounting interface covers Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB and CA styles.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X155-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X155-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 155 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | — |
| Max (@1.0 MPa) | 1169 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125X155-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×155 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ125 Adjustable Cylinder SAIJ125X155-10S Is Used
Machine Changeover
Quickly fine-tune the 145-155 mm travel window during product size changes on a packaging line without replacing the cylinder.
Press Fit Tuning
Dial in the exact end-position for a heavy-duty press operation, using the rear stopper to compensate for tooling wear.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X155-10S the Right Cylinder?
The adjustable stroke is ideal for product changeovers where a 10 mm end-position tweak is necessary, saving you from swapping out a fixed-stroke SAI cylinder.
Remember that the rear adjuster acts only as a travel stop, not a brake; it cannot hold a load without live air pressure. For dead-end load holding, consider an external pilot-operated check valve or the SAIL locking cylinder. This SAIJ125X155-10-S is dimensionally interchangeable per ISO 15552, featuring a magnet (-S), PT ports, and a 30-500 mm/s speed range.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for 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 (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X155-10S FAQ
The rear adjuster screw lets you shorten the nominal 155 mm stroke by up to 10 mm, creating a 145-155 mm travel window. It functions as a mechanical stop to set the end position and does not lock the load without live air pressure.
The included magnet works with AirTAC CMSE reed switches and DMSE electronic sensors for precise position feedback.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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