Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 220mm 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
- Stroke220 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10S
The AirTAC SAIJ40X220-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 220 mm nominal stroke that can be fine-tuned backward by up to 10 mm, creating a precise 210-220 mm usable travel window for commissioning without external stops. Operating at 0.5 MPa, it delivers 628 N of push force and 528 N of pull force.
This SKU is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance and features an integrated magnet (-S) for position sensing. It accepts PT tapered port threads (G1/4) and utilizes a 12x1.25 rod thread. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches for accurate end-position feedback.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 220 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 SAIJ40BX220-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×220 | 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 SAIJ40BX220-10S Is Used
Machine Changeover
Dial in the exact 210-220 mm end position during product size transitions without physically swapping the cylinder or adding shims.
Variable End Stops
Perfect for diverters and gates where the 10 mm rear adjustment screw fine-tunes the resting position of the 16 mm rod during line setup.
Corrosive Assembly
The SUS304 stainless rod and 628 N thrust make it ideal for light-duty clamping in environments requiring high corrosion resistance.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10S the Right Cylinder?
Select this 40 mm bore cylinder when your application requires a 220 mm stroke but demands exact end-position tuning at setup; the rear adjuster allows you to dial back the travel by 10 mm without swapping hardware. If your force requirements are lower, the 32 mm bore offers 402 N push at 0.5 MPa, whereas heavier loads might necessitate the 50 mm bore with its 982 N push. Because this is a 220 mm stroke, it falls below the 300 mm threshold where external side-load guides become strictly mandatory, though the 16 mm rod diameter still handles moderate lateral stress well.
This adjustable-stroke design is preferred over a fixed SAI cylinder when machine changeovers or product-size variations require slight repositioning of the end stop. For ISO 15552 replacement matching, verify the 40 mm bore, 220 mm stroke, 10 mm adjustment, PT port, and -S magnet. Remember that the rear adjuster functions purely as a travel stop, not a load lock; the SAIJ does not hold position without live air pressure, so explore SAIL or BSAI cylinders if true mechanical holding is required.
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 SAIJ40BX220-10S FAQ
At a 0.5 MPa operating pressure, this 40 mm bore cylinder generates 628 N of push force and 528 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 1130 N of push force.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 10 mm from the 220 mm nominal length, providing a 210-220 mm travel window. It only sets the travel end and does not lock the load without live air pressure.
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