Airtac SAIJ40 Adjustable Cylinder SAIJ40BX95-30
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX95-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 95mm 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
- Stroke95 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX95-30
The AirTAC SAIJ40X95-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 95 mm stroke that can be fine-tuned down by up to 30 mm, giving operators a usable travel window of 65 to 95 mm. Delivering 879 N of push force at 0.7 MPa, it fits mid-range automation tasks perfectly.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads with a G1/4 connection. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to add CMSE reed or DMSE electronic switches later if positioning feedback becomes necessary.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX95-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX95-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 95 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 SAIJ40BX95-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×95 | 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 SAIJ40BX95-30 Is Used
Product Changeovers
Dial in the 65 to 95 mm travel window during format changes on packaging lines, avoiding the need to swap out physical hard stops.
End-Position Tuning
Fine-tune the retract distance at machine commissioning to perfect the picking or pressing depth without mechanical rework.
Corrosive Assembly Tasks
Leverage the SUS304 stainless steel rod for light pushing and clamping duties in environments where standard carbon steel rods would degrade.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX95-30 the Right Cylinder?
Choose this 40 mm bore when a 32 mm bore (offering 563 N push at 0.7 MPa) is too weak, but a 63 mm cylinder (2182 N push) is physically oversized. The 30 mm adjustment range is ideal for product changeovers, letting you dial in the exact end position without adding external stops or replacing the cylinder. If your process requires the load to stay held without continuous air pressure, note that this adjuster acts only as a travel stop; you would need an external pilot-operated check valve or a related SAIL lock cylinder.
For an exact ISO 15552 replacement, match the 40 mm bore, 95 mm stroke, 30 mm adjustment, PT port, and your required mounting bracket from the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 sets. Because the stroke is under 300 mm, side-load stress is minimal, but the robust 16 mm rod still handles standard operational loads effectively.
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 SAIJ40BX95-30 FAQ
At a standard operating pressure of 0.7 MPa, this 40 mm bore cylinder provides 879 N of push force and 528 N of pull force. It can reach a maximum push force of 1130 N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that shortens the retract stroke. For this 95 mm nominal stroke cylinder, you can trim the effective travel back by up to 30 mm, creating a precise 65 to 95 mm operating window without replacing the cylinder.
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