Airtac SAIJ40 Adjustable Cylinder SAIJ40BX165-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX165-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 165mm 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
- Stroke165 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX165-100S
The AirTAC SAIJ40X165-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 100 mm. This creates a usable stroke window of 65-165 mm, giving you exact control over the retract end position without adding external stops. In the 40 mm bore class, it delivers 628 N of push force and 528 N of pull force at 0.5 MPa.
Built with a SUS304 stainless steel rod, this version is equipped with a magnet for position sensing and uses PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of AirTAC CMSE reed and DMSE electronic switches. The 16 mm rod and M12x1.25 thread provide solid resistance to side loading, though long unsupported travels still require an external guide.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX165-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX165-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 165 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 SAIJ40BX165-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×165 | 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 SAIJ40BX165-100S Is Used
Machine Setup Tuning
Dial in the exact 65 to 165 mm retract position during initial commissioning without swapping out the cylinder or adding external mechanical stops.
Product Changeover
Quickly adjust the end-stop distance on packaging lines when handling different product sizes, using the 100 mm adjustment range to adapt the travel window.
Sensor Equipped Positioning
Leverage the integrated magnet with DMSE electronic sensors to confirm end-of-stroke arrival while fine-tuning the stroke limit for automated clamping tasks.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX165-100S the Right Cylinder?
Choose this 40 mm bore adjustable-stroke cylinder when your application requires a 628 N force class but needs on-the-fly end-position tuning during commissioning or product changeover. If you need higher thrust, stepping up to the 50 mm bore yields 982 N of push force at 0.5 MPa. The rear adjuster acts purely as a travel stop for deceleration and does not hold the load without live air; for true fail-safe load holding, consider the SAIL or BSAI series.
To match this ISO 15552 cylinder exactly for a replacement, specify the 40 mm bore, 165 mm stroke, 100 mm adjustment range, PT port thread, and the -S magnet option. It supports the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) but omits FB, CA, CB, and CR brackets.
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 SAIJ40BX165-100S 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 the maximum 1.0 MPa pressure, it can deliver up to 128 kgf of thrust.
The rear adjuster screw acts as an external stopper that can shorten the nominal 165 mm stroke by up to 100 mm, creating a usable travel window of 65 to 165 mm. It sets the end position but does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40BX165-100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.