Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75S 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 SAIJ40BX160-75S
The AirTAC SAIJ40X160-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 160 mm stroke that can be dialed back by up to 75 mm, yielding a usable travel window of 85 to 160 mm. Delivering 628 N of push force at 0.5 MPa, it uses a G1/4 port and runs at speeds of 30-800 mm/s.
This variant features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE reed or DMSE electronic sensors. The rear screw acts purely as a travel stop for fine-tuning end positions during commissioning; it does not hold the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75S |
|---|---|
| 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 SAIJ40BX160-75S
| 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 SAIJ40BX160-75S Is Used
Machine Setup Commissioning
Fine-tune the 85 to 160 mm travel window during initial machine commissioning without machining external stopper blocks.
Product Size Changeovers
Quickly adapt the cylinder end-stop on packaging lines when switching between different product sizes.
Variable End-Position Dosing
Dial in the exact retraction point for precise dosing or pressing tasks across varying batch requirements.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75S the Right Cylinder?
Choose this 40 mm bore if you need 628 N push force at 0.5 MPa, or step up to the 50 mm bore for 982 N. The 75 mm adjustment range is ideal for product changeovers on a line, allowing variable end-stops without swapping the cylinder. For load-holding without live air, select the SAIL or BSAI series instead, as the SAIJ adjuster is not a lock.
This ISO 15552 dimensionally interchangeable cylinder uses a PT tapered port thread and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts. Since the 160 mm stroke is under 300 mm, side-load risks are moderate, but an external guide is still recommended for heavy lateral loads.
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 SAIJ40BX160-75S FAQ
A rear adjusting screw lets you shorten the effective stroke by up to 75 mm, providing a usable travel window of 85 to 160 mm. The adjuster acts as a mechanical stop and does not function as a lock or brake.
At 0.5 MPa operating pressure, it provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
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