Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10 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 SAIJ40BX220-10
The AirTAC SAIJ40X220-10 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 628N of push force at 0.5 MPa and features a 220mm nominal stroke that can be fine-tuned down by up to 10mm, creating a precise 210-220mm usable travel window. This built-in adjustment allows you to dial in the retract end position during commissioning without adding external stopper blocks.
This configuration features a SUS304 stainless steel rod (code B) for superior corrosion resistance and utilizes PT tapered port threads with a G1/4 connection. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU is configured without a magnet. The rear adjuster functions strictly as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10 |
|---|---|
| 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 SAIJ40BX220-10
| 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 SAIJ40BX220-10 Is Used
Machine Commissioning
Fine-tune the 210-220mm retract end position during initial setup to perfectly align tooling without machining new spacer blocks.
Product Changeover
Quickly adjust the stroke by up to 10mm on a packaging line when switching between slightly different product sizes.
End-Stop Calibration
Dial in the exact retract position on a light-duty assembly fixture, utilizing the 628N push force to seat components accurately.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-10 the Right Cylinder?
Choose this 40mm bore when an application requires moderate thrust, such as the 628N push or 528N pull at 0.5 MPa. If your setup demands significantly less force, stepping down to a 32mm bore provides 402N push force, whereas heavier loads necessitate stepping up to a 50mm bore for 982N. The 10mm adjustment range is perfect for applications needing slight end-position corrections rather than massive travel changes. Because the nominal stroke is 220mm, an external guide is recommended to prevent excessive side-loading on the rod. For load-holding without continuous air pressure, this cylinder is insufficient; consider an AirTAC SAIL or BSAI series instead. When matching ISO 15552 replacements, confirm the 40mm bore, 220mm stroke, 10mm adjustment, PT port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or 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 SAIJ40BX220-10 FAQ
At 0.5 MPa operating pressure, this 40mm bore cylinder provides a push force of 628N and a pull force of 528N. If operated at 0.7 MPa, the push force increases to 879N.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke from the 220mm nominal length down to 210mm. It sets the travel end and deceleration point but does not lock the load without live air pressure.
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