Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-50
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 160mm 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
- Stroke160 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-50
The AirTAC SAIJ40X160-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 160 mm stroke that can be fine-tuned down by up to 50 mm, yielding a usable travel window of 110 to 160 mm. Delivering 628 N of push force at 0.5 MPa, it fits perfectly into medium-duty setups requiring exact end-position tuning.
This variant utilizes a SUS304 stainless steel piston rod for enhanced corrosion resistance and includes PT tapered port threads (G1/4). The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. You can easily integrate AirTAC CMSE reed or DMSE electronic sensors to track position along the entire adjusted travel range.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-50 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 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 SAIJ40BX160-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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 SAIJ40BX160-50 Is Used
Product Changeover
Dial in the 110 to 160 mm travel window during format changes on packaging lines, avoiding the need to physically swap out cylinders for different product sizes.
End-Position Trimming
Fine-tune the retract distance at machine commissioning to achieve exact material feeding, relying on the 50 mm rear adjustment screw rather than external stopper blocks.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod in light manufacturing environments where moisture is present, ensuring reliable actuation and durable performance.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-50 the Right Cylinder?
Select this 40 mm bore when an application requires variable end-stops without swapping hardware, offering a 110-160 mm adjustable window. If your process demands less force, stepping down to a 32 mm bore yields 402 N at 0.5 MPa; if you need more clamping power, a 50 mm bore provides 982 N. The rear adjuster screw acts purely as a mechanical stop to set the retraction point and does not lock the load. For load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder. To ensure a true ISO 15552 replacement match, verify the 160 mm stroke, 50 mm adjustment, PT G1/4 port, and your required mounting bracket from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ40BX160-50 FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. If operated at 0.7 MPa, the push force increases to 879 N.
The rear adjuster screw lets you shorten the effective stroke from its 160 mm nominal length down to 110 mm. It functions as a mechanical stop for end-position tuning and does not hold the load without continuous air pressure.
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