Airtac SAIJ125 Adjustable Cylinder SAIJ125BX105-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125BX105-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 105mm 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
- Stroke105 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 SAIJ125BX105-75
The AirTAC SAIJ125X105-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 105 mm travel by up to 75 mm. This creates a highly flexible 30-105 mm usable travel window, perfect for dialing in exact end positions during commissioning without swapping hardware. It delivers a robust 6136 N pull force at 0.5 MPa.
This specific configuration features a SUS304 stainless steel rod (code B) for superior corrosion resistance and utilizes PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is added later. The rear adjuster acts purely as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125BX105-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125BX105-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 105 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 SAIJ125BX105-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×105 | 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 SAIJ125BX105-75 Is Used
Product Changeover
Quickly shift the end-stop from 105 mm down to 30 mm when adapting machinery to different product lengths without changing the cylinder.
Precision End-Tuning
Fine-tune the exact retraction point during machine commissioning to achieve perfect positioning without adding external stopper blocks.
Heavy Forming Setup
Leverage the 8590 N push force at 0.5 MPa for pressing operations while using the 75 mm adjustment to set the precise forming depth.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125BX105-75 the Right Cylinder?
Choose this 125 mm bore when you need substantial thrust—6136 N pull or 8590 N push at 0.5 MPa—stepping up from an 80 mm bore that only provides 2268 N pull. The 75 mm adjustment range is ideal for product-size changeovers on a line, letting you shift the end-stop dynamically rather than installing fixed stops. For load-holding without continuous air pressure, you must look to a SAIL pneumatic lock or external rod lock, as the SAIJ adjuster cannot hold loads.
When replacing an ISO 15552 cylinder, match the 125 mm bore, 105 mm stroke, 75 mm adjustment, PT ports, and SUS304 rod. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the stroke is relatively short at 105 mm, side-loading is less of a concern than with longer strokes, but always ensure the load is guided to prevent binding.
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 SAIJ125BX105-75 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of pull force and 8590 N of push force. At 0.9 MPa, the push force reaches 11045 N.
The rear adjuster screw allows you to trim the effective stroke back by up to 75 mm from the nominal 105 mm, providing a usable travel window of 30 to 105 mm. It functions as a mechanical stop and does not lock the load without 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 are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125BX105-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.