Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75 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 SAIJ40BX160-75
The AirTAC SAIJ40X160-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 75 mm. This creates a highly flexible 85 to 160 mm usable stroke window, letting you dial in the exact end position during commissioning without swapping out the physical actuator. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa.
Built with a SUS304 stainless steel rod (option B), this actuator provides excellent corrosion resistance for demanding environments. The extruded aluminum barrel includes sensor grooves on both sides for easy switch mounting, and the standard PT G1/4 porting ensures straightforward integration into existing pneumatic setups.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75 |
|---|---|
| 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 SAIJ40BX160-75
| 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 SAIJ40BX160-75 Is Used
Product Changeovers
Quickly reconfigure the 85-160 mm stroke window for different package sizes on a packaging line without replacing the cylinder or adding external stopper blocks.
Machine Setup
Fine-tune the retract end position during initial commissioning to achieve precise alignment, using the rear screw to dial in the exact 75 mm trim capacity.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in washdown or mildly corrosive industrial settings where standard carbon steel rods would degrade.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-75 the Right Cylinder?
Choose this 40 mm bore when you need more power than a 32 mm cylinder (which provides 402 N push at 0.5 MPa) but want to avoid the bulk of a 50 mm unit. The 75 mm adjustment range is ideal for product changeovers on a packaging line, allowing operators to reposition the end stop rapidly without adding external mechanical stops. If your application requires the load to be held securely without continuous air pressure, note that this rear adjuster acts only as a travel stop; you should instead explore an AirTAC SAIL pneumatic lock or an external pilot-operated check valve.
For an exact ISO 15552 replacement, match the 40 mm bore, 160 mm nominal stroke, 75 mm adjustment range, PT G1/4 port, and SUS304 rod material. Because the nominal stroke is 160 mm, standard side-loading precautions apply, though the 16 mm rod and M12x1.25 thread offer robust stability. Supported mounts include Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ40BX160-75 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 acts as a mechanical stop that allows you to shorten the 160 mm nominal stroke by up to 75 mm, providing an effective travel range of 85 to 160 mm. It only sets the end position and does not lock the load without live air pressure.
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