Airtac SAIJ40 Adjustable Cylinder SAIJ40BX10-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX10-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 10mm 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
- Stroke10 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX10-10S
The AirTAC SAIJ40X10-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 628N of push force at 0.5 MPa. It features a SUS304 stainless steel rod and a PT tapered port thread. Because the nominal stroke is only 10mm and the adjustment range is also 10mm, you can dial the effective travel down to a zero-position stop for exact endpoint tuning.
This adjustable-stroke design lets you fine-tune the retract position at commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position detection.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX10-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX10-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 10 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 SAIJ40BX10-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×10 | 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 SAIJ40BX10-10S Is Used
Precision Clamping
Dial in the exact clamping depth on delicate workpieces using the 0-10mm travel window without repositioning the entire fixture.
Machine Setup
Fine-tune the retract end-position during initial commissioning to perfectly align tooling, avoiding the need for external stopper hardware.
Product Changeover
Quickly adjust the stroke end-point on a packaging line when switching to a slightly different product size, minimizing downtime.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX10-10S the Right Cylinder?
Choose this 40mm bore when you need more force than a 32mm cylinder (which provides 402N push at 0.5 MPa) but have limited space. The adjustable 0-10mm travel window is ideal for applications requiring variable end-stops during product changeovers. For exact ISO 15552 replacement matching, verify the 10mm stroke, 10mm adjustment code, PT ports, and the -S magnet requirement.
Remember that the rear adjuster acts strictly as a travel stop, not a lock; it cannot hold a load without live air pressure. For load-holding without continuous air, consider an external pilot-operated check valve or a related AirTAC SAIL locking cylinder. Mounting options include the reduced SAIJ set: 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 SAIJ40BX10-10S FAQ
At 0.5 MPa operating pressure, this 40mm bore cylinder provides 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 879N.
The rear adjusting screw allows you to shorten the effective stroke by up to 10mm. Since the nominal stroke is 10mm, the usable travel window is 0-10mm, letting you set the exact end-position without changing the cylinder.
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