Airtac SAIJ40 Adjustable Cylinder SAIJ40BX600-40
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX600-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 600mm 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
- Stroke600 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX600-40
The AirTAC SAIJ40X600-40 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 600 mm nominal stroke that can be fine-tuned down by up to 40 mm, yielding a usable travel window between 560 and 600 mm. Delivering 879 N of push force at 0.7 MPa, it fits mid-range automation tasks perfectly.
This variant is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to add CMSE or DMSE switches later if positioning feedback becomes necessary.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX600-40 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX600-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 600 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 SAIJ40BX600-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×600 | 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 SAIJ40BX600-40 Is Used
Machine Changeover
Dial in the 560-600 mm travel window during product size changes to set new end stops rapidly without physically swapping the actuator.
Material Handling
Ideal for pushing or diverting items on a line where the exact extended position needs minor field adjustments to accommodate varying package dimensions.
Commissioning Calibration
Fine-tune the retract end-position during initial setup, using the rear adjuster to perfect tooling alignment without machining custom spacers.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX600-40 the Right Cylinder?
Select this 40 mm bore when an application requires precise end-position tuning during commissioning without adding external stops; if you need less force, the 32 mm bore offers 563 N at 0.7 MPa. Because the 600 mm stroke is relatively long, ensure you provide an external guide to support the load and prevent excessive side-loading on the rod.
The rear screw acts purely as a travel stop to set deceleration, not as a lock; it will not hold the load without live air pressure. For true load-holding without continuous air, consider an AirTAC SAIL or BSAI cylinder. This model is dimensionally interchangeable per ISO 15552 and accepts Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ40BX600-40 FAQ
At 0.5 MPa it provides 628 N push and 528 N pull force. At 0.7 MPa, the push force increases to 879 N, with a maximum rated force of 128 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the 600 mm nominal stroke by up to 40 mm, creating a usable travel window of 560 to 600 mm. It functions as a mechanical stop for end-position tuning and does not lock the load without air pressure.
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