Airtac SAIJ125 Adjustable Cylinder SAIJ125X220-10S
The AirTAC SAIJ125 Adjustable Cylinder SAIJ125X220-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 220mm 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
- Stroke220 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 SAIJ125X220-10S
The AirTAC SAIJ125X220-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 210 to 220 mm, allowing you to dial back the nominal 220 mm stroke by up to 10 mm during commissioning without adding external stops.
This -S variant includes a magnet for position sensing and works seamlessly with AirTAC CMSE reed and DMSE electronic switches fitted into the dual-side sensor grooves. The extruded aluminum barrel design uses a PT tapered G1/2 port and a 32 mm carbon steel rod with an M27x2 thread. It supports the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) while omitting the FB, CA, CB, and CR options.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X220-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X220-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 220 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 SAIJ125X220-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×220 | 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 SAIJ125X220-10S Is Used
Machine Changeover
Dial in the exact retract end-position within the 210-220 mm window when switching a packaging line to a new carton size.
Press Fit Tuning
Fine-tune the insertion depth of a 125 mm bore press operation without physically swapping the cylinder or adding spacer blocks.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X220-10S the Right Cylinder?
The 10 mm rear adjustment range is ideal for fine-tuning the retract end position on product-size changeovers, whereas a fixed-stroke SAI requires shimming or swapping to alter the travel.
For stroke lengths of 300 mm or more, external guide rails are recommended to prevent rod side-loading, though this 220 mm unit is well within standard limits. Remember that the rear adjuster acts only as a travel stop and the air cushions manage deceleration; neither will hold a load without live air pressure. For true fail-safe load holding, consider the SAIL or BSAI series instead. To match this ISO 15552 footprint, specify: 125 mm bore, 220 mm stroke, 10 mm adjust, PT port, desired mounting, and the -S magnet.
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 SAIJ125X220-10S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 220 mm down to 210 mm. This creates a 210-220 mm adjustable window for fine-tuning the end position at commissioning without replacing the cylinder.
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