Airtac SAIJ40 Adjustable Cylinder SAIJ40BX475-10
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX475-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 475mm 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
- Stroke475 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX475-10
The AirTAC SAIJ40X475-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 628N of push force at 0.5 MPa and provides a usable travel window of 465 to 475mm, letting you dial in the exact retract position without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch mounting.
This specific configuration utilizes a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. Because the 475mm stroke is relatively long for the 40mm bore, the 16mm rod diameter should be paired with an external guide to prevent excessive side-loading. The rear adjuster acts strictly as a travel stop for end-position tuning, not a load-holding lock.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX475-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX475-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 475 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 SAIJ40BX475-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×475 | 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 SAIJ40BX475-10 Is Used
Machine Setup Calibration
Fine-tune the 465-475mm retract end-stop during initial machine commissioning to perfectly align tooling without machining custom spacers.
Product Changeover
Quickly adjust the stroke end-position by up to 10mm on a packaging line when switching to a slightly different carton size.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod for pushing and pulling tasks in washdown or mildly corrosive manufacturing areas.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX475-10 the Right Cylinder?
Select this 40mm bore cylinder when an application requires precise end-position tuning during commissioning or product changeover, stepping up from a 32mm bore that only provides 402N of push force at 0.5 MPa. The 10mm adjustment window is ideal for fine-tuning a 475mm travel distance without swapping out the entire actuator. If your process demands load-holding without continuous air pressure, a standard SAIJ will not suffice; you should explore the SAIL or BSAI locking cylinder series instead.
To match this exact configuration for an ISO 15552 dimensional replacement, specify the 40mm bore, 475mm stroke, 10mm adjustment range, PT port threads, SUS304 (B) rod material, and standard TPU seals. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 kits. Given the 475mm stroke, ensure your mounting setup includes an external guide to support the load and protect the rod from side-load wear.
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 SAIJ40BX475-10 FAQ
At a standard operating pressure of 0.5 MPa, this 40mm bore cylinder provides a push force of 628N and a pull force of 528N. 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 475mm down to a minimum of 465mm. It is designed for end-position tuning only and does not lock or hold the load without continuous air pressure.
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