Airtac SAIJ125 Adjustable Cylinder SAIJ125AX475-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX475-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 475mm stroke, G1/2 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
- Stroke475 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX475-10
The AirTAC SAIJ125X475-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the extend travel. With a 475 mm nominal stroke and a 10 mm adjustment range, it provides a usable travel window of 465-475 mm for precise end-position tuning during commissioning. It delivers robust thrust, generating 6136 N push force and 5734 N pull force at 0.5 MPa.
This model incorporates a SUS420J2 stainless steel rod for enhanced durability against moisture and PT tapered port threads for a secure pneumatic connection. Operating at speeds of 30-500 mm/s, it utilizes adjustable air cushions at both ends to manage kinetic energy. The extruded aluminum barrel includes sensor grooves on both sides, allowing for the direct mounting of CMSE reed or DMSE electronic switches if position feedback is later required.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX475-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX475-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 475 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 | 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 SAIJ125 Adjustable Cylinder SAIJ125AX475-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×475 | 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 SAIJ125AX475-10 Is Used
Product Changeover Tuning
Dial in the 465-475 mm travel window during machine format changes to accommodate slightly different workpiece lengths without replacing the cylinder.
Heavy Material Handling
Leverage the 6136 N push force at 0.5 MPa to shift heavy pallets or structural components, using the rear stop to set the exact ejection distance.
Commissioning Calibration
Use the 10 mm rear adjuster screw during initial machine setup to perfectly align the end-of-stroke position with tooling, avoiding costly mechanical re-machining.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX475-10 the Right Cylinder?
Selecting this 125 mm bore cylinder is ideal when an application requires substantial force—such as the 6136 N push force at 0.5 MPa—and on-the-fly end-stop adjustments without swapping out physical components. If your setup demands less thrust, stepping down to a 100 mm bore yields 3927 N of push force at 0.5 MPa. Conversely, heavier loads might require the 160 mm bore, which provides 10053 N. The adjustable 465-475 mm window is perfect for accommodating minor product size variations on a production line.
Because this unit features a 475 mm stroke, the 32 mm diameter rod and M27x2 rod thread provide significant structural support, but an external guide is strongly recommended to prevent excessive side-loading on the piston. When specifying a replacement, ensure you match the 125 mm bore, 475 mm stroke, 10 mm adjustment, PT port thread, and the SUS420J2 rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Remember that the rear adjuster acts only as a travel stop; for load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ125AX475-10 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides a push force of 6136 N and a pull force of 5734 N. At 0.7 MPa, the push force increases to 8590 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 10 mm. This creates a usable travel window of 465-475 mm from the 475 mm nominal stroke, letting you fine-tune the end position without adding external stops. The adjuster is a stop, not a lock.
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.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125AX475-10
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.