Airtac SAIJ40 Adjustable Cylinder SAIJ40BX225-10
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX225-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 225mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke225 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX225-10
The AirTAC SAIJ40X225-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the retract end position. It provides a usable travel window of 215 to 225 mm, letting you dial in the exact stroke during commissioning without adding external stops. The 40 mm bore generates 628 N of push force and 528 N of pull force at 0.5 MPa, making it well-suited for moderate load positioning tasks.
This variant is built with a SUS304 stainless steel rod (code B) for enhanced corrosion resistance in demanding environments. It uses PT tapered port threads and supports a speed range of 30-800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily mount position switches if needed later.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX225-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX225-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX225-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX225-10 Is Used
Machine Commissioning
Dial in the exact 215 to 225 mm travel distance during initial setup to perfect end-of-stroke positioning without swapping cylinders.
Product Changeover
Quickly adjust the retract stop by up to 10 mm when running a new product size on the line, minimizing downtime.
Assembly Positioning
Leverage the 628 N push force and fine-tuned stroke to press or place components accurately in moderate-duty assembly fixtures.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX225-10 the Right Cylinder?
Select this adjustable-stroke model when your machine setup requires precise end-position tuning or frequent product changeovers that demand a variable end stop, rather than a fixed-stroke SAI cylinder. If you need greater thrust, stepping up to the 50 mm bore yields 982 N of push force at 0.5 MPa; dropping down to the 32 mm bore provides 402 N. Keep in mind the rear adjuster acts only as a travel stop and does not hold the load without live air pressure—use SAIL or BSAI cylinders for true locking requirements.
To match this ISO 15552 dimensionally interchangeable cylinder for a replacement, verify the 40 mm bore, 225 mm nominal stroke, 10 mm adjustment range, PT port thread, and standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Since the stroke is 225 mm, ensure proper guiding for any side loads to prevent excessive rod wear.
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 SAIJ40 Adjustable Cylinder SAIJ40BX225-10 FAQ
It features a rear adjusting screw that lets you shorten the effective stroke by up to 10 mm, creating a usable travel window of 215 to 225 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without air pressure.
At 0.5 MPa, the SAIJ40X225-10 provides 628 N of push force and 528 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers up to 128 kgf of push force.
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