Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-40
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 60mm 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
- Stroke60 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-40
The AirTAC SAIJ40X60-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 20 to 60 mm, letting you dial back the 60 mm nominal stroke by up to 40 mm during commissioning without adding external stops. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa, making it suitable for moderate-duty handling.
This unit is built with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a travel stop to set end positions, not as a lock to hold loads without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-40 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 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 SAIJ40BX60-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×60 | 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 SAIJ40BX60-40 Is Used
Machine Changeovers
Quickly fine-tune the 20-60 mm travel window during product size transitions on a packaging line without physically replacing the cylinder.
End-Position Calibration
Dial in the exact retract stop during initial commissioning to perfect a pressing or clamping operation, avoiding the need for external mechanical shims.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod for reliable actuation in food processing or chemical environments where standard carbon steel rods would degrade.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-40 the Right Cylinder?
Choose this 40 mm bore when a 32 mm bore (offering 402 N push at 0.5 MPa) is too weak, but a 50 mm bore (982 N push) would be excessive overkill. The 40 mm adjustment range on a 60 mm stroke is ideal for machines requiring frequent product-size changeovers, allowing you to fine-tune the retract end-position rather than swapping to a fixed-stroke SAI cylinder. If your application requires true load-holding without continuous air pressure, use a SAIL or BSAI cylinder instead, as the SAIJ adjuster is only a stop.
When replacing an ISO 15552 cylinder, match the 40 mm bore, 60 mm nominal stroke, 40 mm adjustment, PT port, and the specified mounting. The 16 mm rod and M12x1.25 thread handle side loads well, though long unsupported strokes still require an external guide.
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 SAIJ40BX60-40 FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
The rear adjuster screw allows you to shorten the 60 mm nominal stroke by up to 40 mm, creating a usable travel window of 20 to 60 mm. It functions as a mechanical stop to fine-tune the end position and does not lock the load without live air.
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