Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10 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
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10
The AirTAC SAIJ125X230-10 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 6136N of push force at 0.5MPa and features a 220-230mm usable travel window, allowing you to trim the nominal 230mm stroke by up to 10mm during machinery setup. This fine-tuning capability eliminates the need to swap cylinders or bolt on external stops when aligning end positions.
This bore size utilizes a G1/2 port and a robust 32mm carbon steel piston rod with an M27x2 thread, providing high rigidity against side loads. The extruded aluminum barrel includes sensor grooves on both sides, and while this specific SKU lacks a magnet, adding a magnet enables the use of AirTAC CMSE reed or DMSE electronic solid-state switches for position detection.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10 |
|---|---|
| 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 SAIJ125X230-10
| 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 SAIJ125X230-10 Is Used
Machine Setup & Changeover
Dial in the exact 220-230mm end position during product size changes without physically swapping out the entire actuator.
Variable End-Stop Positioning
Fine-tune the retraction point on heavy material handling equipment to accommodate varying workpiece dimensions.
Heavy-Duty Clamping
Secure large components during machining using the 6136N push force, adjusting the clamp reach by up to 10mm for perfect alignment.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X230-10 the Right Cylinder?
Choose this 125mm bore when a 100mm cylinder (offering 3927N push at 0.5MPa) lacks the necessary thrust, but a 160mm bore is physically too large for the envelope. The SAIJ125X230-10 is selected over a fixed-stroke SAI when a process requires exact end-position tuning at commissioning or during product changeovers. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Remember that the rear adjuster functions strictly as a travel stop, not a lock; it cannot hold a load without live air pressure. For load-holding requirements, consider an external rod lock or explore the SAIL or BSAI cylinder variants. Because the nominal stroke is 230mm, ensure proper external guiding to prevent excessive side-loading on the rod.
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 SAIJ125X230-10 FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. At its maximum 1.0 MPa pressure, it delivers up to 1251 kgf.
The rear adjuster acts as an external stopper that allows you to shorten the effective stroke from the nominal 230mm down to 220mm. It only sets the travel end and does not lock the load without continuous air pressure.
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