Airtac SAIJ125 Adjustable Cylinder SAIJ125AX30-30S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX30-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 30mm 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
- Stroke30 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX30-30S
The AirTAC SAIJ125X30-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the retract end position. With a nominal 30 mm stroke and a 30 mm adjustment code, the usable travel window spans 0 to 30 mm, allowing you to dial in the exact end-of-stroke without adding external stops. It delivers 6136 N of push force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks.
This variant includes a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and a magnet for use with CMSE reed and DMSE electronic sensors. The extruded aluminum barrel features sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX30-30S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX30-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 30 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 SAIJ125AX30-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×30 | 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 SAIJ125AX30-30S Is Used
Variable End-Stop Setup
Perfect for dialing in precise retract positions during machine commissioning, allowing operators to trim the 30 mm stroke back to an exact shorter length without external spacers.
Product Changeover Lines
Ideal for packaging or handling lines that process multiple product sizes, where the 0-30 mm adjustable window quickly accommodates different part widths on the fly.
Heavy-Duty Positioning
Leverages the 125 mm bore's 6136 N push force at 0.5 MPa to move heavy jigs into place, using the rear stopper to guarantee repeatable final positioning.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX30-30S the Right Cylinder?
Select this 125 mm bore cylinder when an application requires substantial thrust—6136 N at 0.5 MPa or 8590 N at 0.7 MPa—but demands on-the-fly stroke tuning. If your force requirements are lower, stepping down to the 100 mm bore yields 3927 N at 0.5 MPa, whereas moving up to the 160 mm bore provides 10053 N. The adjustable rear stopper is ideal for product changeovers, letting you shorten the travel window as needed without replacing the cylinder.
Because the nominal stroke is 30 mm, an external guide is not strictly required for side-load support, but the 32 mm rod and M27x2 thread provide robust mechanical strength. Remember that the rear adjuster acts only as a travel stop, not a locking device; the SAIJ125X30-30-S will not hold a load without live air pressure. For true load-holding, consider the SAIL or BSAI series. This PT-ported model is dimensionally interchangeable per ISO 15552.
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 SAIJ125AX30-30S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from its 30 mm nominal stroke down to 0 mm. It only sets the end position and does not lock the load without live air pressure.
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 SAIJ125AX30-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.