Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-75
The AirTAC SAIJ125X90-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 90 mm stroke by up to 75 mm. This creates a highly flexible 15-90 mm usable travel window, allowing precise end-position tuning at commissioning without swapping the cylinder or adding external stops. It delivers substantial thrust, pushing 6136 N and pulling 5734 N at 0.5 MPa.
Built with a carbon steel rod and PT tapered port threads, this 125 mm bore unit omits the FB, CA, CB, and CR mounting styles, utilizing a reduced interface set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a travel stop for deceleration and positioning; it is not a lock, so the cylinder cannot hold loads without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 90 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 SAIJ125X90-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×90 | 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 SAIJ125X90-75 Is Used
Variable End-Stop Setup
Dial in the exact 15-90 mm travel window during machine commissioning to accommodate varying product lengths without replacing the actuator.
Heavy Positioning
Leverage the 6136 N push force at 0.5 MPa to move heavy pallets or fixtures into their final configured positions on the assembly line.
Product Changeover
Quickly retract the rear stopper screw during line changeovers to shorten the effective stroke for different packaging formats.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X90-75 the Right Cylinder?
Choose this 125 bore adjustable cylinder when your application requires heavy force—6136 N push at 0.5 MPa—and variable end-stops for product changeovers. If your setup needs less force, stepping down to the 100 bore yields 3927 N push, while moving up to the 160 bore provides 10053 N. The SAIJ125X90-75 is selected over a fixed SAI when a 15-90 mm travel window is needed to fine-tune machine strokes on the fly.
For an exact ISO 15552 replacement, match the 125 mm bore, 90 mm stroke, 75 mm adjustment, PT G1/2 port, and your required mounting from the available set. Because this is a non-magnet version, position sensing requires external mounts rather than internal CMSE or DMSE switches. For applications requiring the load to be held without live air, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster provides no braking force.
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 SAIJ125X90-75 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 the maximum 1.0 MPa pressure, it delivers up to 1251 kgf.
The rear adjuster screw acts as a mechanical stop that shortens the 90 mm nominal stroke by up to 75 mm, creating a 15-90 mm usable travel window. It only sets the end position and does not lock or hold the load without continuous 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 SAIJ125X90-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.