Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 150mm 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
- Stroke150 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-10S
The AirTAC SAIJ40X150-10-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 140-150 mm, allowing you to dial back the nominal 150 mm stroke by up to 10 mm during commissioning. This bore delivers 879 N of push force at 0.7 MPa.
Equipped with a SUS304 stainless steel rod and a PT tapered port thread, it brings high corrosion resistance and secure pneumatic sealing. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 SAIJ40BX150-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 SAIJ40BX150-10S Is Used
Machine Changeover
Dial in the 140-150 mm travel window rapidly when switching product sizes on a packaging line, using the rear screw to set new end positions without mechanical rebuilds.
Sensor Calibration
Leverage the integrated magnet with DMSE solid-state sensors to verify exact end-of-stroke positions while making fine 10 mm adjustments to the retract stop.
Fixture Alignment
Nail down exact clamping reach against a part by trimming the stroke up to 10 mm, relying on the SUS304 rod for durability in repetitive machining setups.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-10S the Right Cylinder?
Choose this 40 mm bore when an application requires around 879 N of push force at 0.7 MPa, stepping up from a 32 mm bore that yields 563 N. The 10 mm rear adjuster is selected when you need to fine-tune the end position on the fly without swapping out a fixed-stroke SAI cylinder or adding external stops. Remember that the rear adjuster acts as a travel stop, not a lock; the SAIJ does not hold loads without live air pressure, so for true load-holding you should look to the SAIL or BSAI series.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints but uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 150 mm stroke is below the 300 mm threshold, side-load concerns are minimal, though the M12x1.25 rod thread still handles moderate lateral stresses well.
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 SAIJ40BX150-10S FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective travel from 150 mm down to 140 mm. This provides a 10 mm tuning window to fine-tune the retract end position without replacing the cylinder.
At 0.7 MPa operating pressure, the 40 mm bore generates 879 N of push force and 528 N of pull force. It operates at speeds between 30 and 800 mm/s, supported by adjustable air cushions at both ends.
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