Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-100
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-100 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 SAIJ40BX220-100
The AirTAC SAIJ40X220-100 is a double-acting, single-rod ISO 15552 profile cylinder engineered for applications requiring precise rear-end position tuning. It features a generous 100mm adjustment range, creating a usable travel window between 120mm and 220mm from its 220mm nominal stroke. Delivering 879N of push force at 0.7 MPa, it handles mid-range actuation with ease. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific configuration utilizes a SUS304 stainless steel rod (code B) for superior corrosion resistance in humid or washdown environments. Fluid supply connects via a PT G1/4 tapered port. The rear adjuster acts purely as a mechanical stop to fine-tune the retract distance during commissioning without swapping components; it is not a locking device and will not hold a load without continuous air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-100 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-100 |
|---|---|
| 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 SAIJ40BX220-100
| 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 SAIJ40BX220-100 Is Used
Product Size Changeovers
Quickly adapt packaging machinery to different carton lengths by dialing the retract stroke back from 220mm to 120mm via the rear adjuster.
Commissioning Calibration
Fine-tune the exact end-of-travel position during machine setup without fabricating custom external stopper blocks.
Corrosion-Resistant Actuation
Leverage the SUS304 stainless steel rod for light assembly tasks in environments where moisture or minor chemical exposure is a concern.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX220-100 the Right Cylinder?
Selecting this 40mm bore over the smaller 32mm variant increases your 0.5 MPa push thrust from 402N to 628N, while stepping up to a 63mm bore yields 1559N. The SAIJ40X220-100 is chosen when a fixed-stroke SAI cylinder cannot accommodate product size changeovers, allowing operators to dial in the exact 120-220mm retract position externally. Because the nominal stroke is 220mm, the 16mm diameter rod and M12x1.25 thread provide robust resistance to side loads, though an external guide is recommended for any unsupported loads.
For a true ISO 15552 replacement, match the 40mm bore, 220mm nominal stroke, 100mm adjustment, PT G1/4 port, and your desired mounting bracket from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that FB, CA, CB, and CR mounts are omitted from this series. If your process requires the load to be held mechanically without live air pressure, pair this cylinder with an external rod lock or consider the AirTAC SAIL or BSAI series instead.
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 SAIJ40BX220-100 FAQ
At 0.7 MPa operating pressure, this 40mm bore cylinder provides 879N of push force and 528N of pull force. At the maximum 1.0 MPa pressure, it achieves 1130N of push force.
The rear adjuster screw allows you to mechanically shorten the effective stroke by up to 100mm. This creates a usable travel window of 120mm to 220mm, enabling precise end-position tuning without replacing the cylinder.
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