Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 195mm 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
- Stroke195 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75
The AirTAC SAIJ40X195-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 120 to 195 mm. Delivering 628 N of push force and 528 N of pull force at 0.5 MPa, it fits perfectly into medium-duty pneumatic setups. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE and DMSE switches.
This SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered ports. The rear adjustment screw acts purely as a travel stop to decelerate the end-of-stroke position, meaning it will not hold a load without live air pressure. For applications requiring true load-holding without continuous pressure, consider the AirTAC SAIL or BSAI series.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 195 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 SAIJ40BX195-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×195 | 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 SAIJ40BX195-75 Is Used
Adjustable Machine Stops
Dial in the exact 120-195 mm travel needed during line changeovers without physically replacing the cylinder.
Corrosive Environments
The SUS304 stainless steel rod handles washdown or humid environments better than standard carbon steel.
End-Position Tuning
Fine-tune the retract end-position at commissioning to absorb mechanical drift in the assembly process.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-75 the Right Cylinder?
Choose this 40 mm bore when your application requires more thrust than a 32 mm bore (402 N at 0.5 MPa) but does not need the bulk of a 50 mm bore (982 N at 0.5 MPa). The 75 mm adjustment range is ideal for machine setups that require variable end-stops during product changeovers, preventing the need to swap out a fixed-stroke SAI cylinder. When replacing an ISO 15552 cylinder, match the 40 mm bore, 195 mm stroke, PT port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is under 300 mm, side-load stress on the 16 mm rod and M12x1.25 thread remains manageable without 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 SAIJ40BX195-75 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 the maximum 1.0 MPa pressure, it delivers up to 128 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 75 mm, creating a usable travel window of 120 to 195 mm. It only sets the end position and does not lock the load without live air.
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