Airtac SAIJ125 Adjustable Cylinder SAIJ125BX230-75
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125BX230-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 230mm 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
- Stroke230 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 SAIJ125BX230-75
The AirTAC SAIJ125X230-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 155 to 230 mm usable travel window, allowing you to dial back the nominal 230 mm stroke by up to 75 mm during commissioning without adding external stops. It delivers 6136 N of push force at 0.5 MPa and integrates a robust 32 mm SUS304 stainless steel rod for superior side-load resistance in demanding environments.
This model uses PT tapered port threads and lacks a piston magnet. The rear adjuster acts strictly as a travel stop to fine-tune end positions and deceleration, meaning it will not hold the load without live air pressure. For secure load-holding without continuous air, consider the SAIL or BSAI series instead. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ125 Adjustable Cylinder SAIJ125BX230-75 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125BX230-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 230 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 SAIJ125BX230-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×230 | 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 SAIJ125BX230-75 Is Used
Variable End-Stop Positioning
Perfect for machines requiring frequent end-position tweaks, allowing operators to shorten the 230 mm stroke by up to 75 mm to accommodate varying material thicknesses.
Production Line Changeover
Ideal for packaging lines that switch product sizes, enabling rapid 155-230 mm travel adjustments at commissioning without replacing the entire cylinder.
Heavy-Duty Forming
Delivers 6136 N of thrust at 0.5 MPa for pressing or clamping tasks, with the SUS304 rod providing reliable performance in harsh manufacturing environments.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125BX230-75 the Right Cylinder?
Select this 125 mm bore cylinder when your application requires 6136 N of push force at 0.5 MPa. If you need less force, stepping down to the 100 mm bore yields 3927 N, while stepping up to the 160 mm bore provides 10053 N. The 75 mm adjustment range is ideal for product changeovers on a line, letting you set variable end-stops on the fly rather than swapping out a fixed-stroke SAI cylinder.
Because the 230 mm stroke is under the 300 mm threshold, external guiding is less critical, but the 32 mm SUS304 rod still handles side loads well. Ensure your setup matches the PT port thread type and note that this configuration does not include a magnet for sensors. The rear adjuster is a stop, not a lock; use an external rod lock or pilot-operated check valve if static holding is required.
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 SAIJ125BX230-75 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm, providing a usable travel window of 155 to 230 mm. It acts as a mechanical stop to fine-tune the end position and does not lock the load without live air pressure.
At 0.5 MPa, 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.
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 SAIJ125BX230-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.