Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 1000mm 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
- Stroke1000 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30S
The AirTAC SAIJ40X1000-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 1000 mm stroke that can be fine-tuned down by up to 30 mm, creating a precise 970-1000 mm usable travel window. Delivering 628 N of push force at 0.5 MPa, it is built for applications requiring exact end-position calibration without swapping hardware.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. Because the 1000 mm stroke is lengthy relative to the 40 mm bore, the 16 mm rod and M12x1.25 thread provide a robust interface, though an external guide is strongly recommended to manage side loads. The rear adjuster acts purely as a travel stop and does not hold the load without live air.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 1000 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 SAIJ40BX1000-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×1000 | 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 SAIJ40BX1000-30S Is Used
Machine Changeover
Quickly adapt the 970-1000 mm travel end-stop during product size transitions on a packaging line without changing the cylinder.
Long-Stroke Calibration
Fine-tune the exact retract position on a 1000 mm stroke assembly station, using the 30 mm rear adjuster to perfect tooling alignment.
Variable End Stops
Dial in the precise pusher distance on a conveyor sorting system, accommodating different carton lengths via the rear stopper screw.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX1000-30S the Right Cylinder?
Choose this 40 mm bore when you need 628 N push force at 0.5 MPa with on-the-fly end-position tuning; step up to a 50 mm bore if your application requires 982 N instead. The adjustable stroke is ideal for machine changeover, letting you dial in the 970-1000 mm window at commissioning rather than machining external stops. For load-holding without continuous air pressure, note that this rear stopper is not a lock—you would need an external rod lock, a pilot-operated check valve, or a SAIL/BSAI cylinder.
To match this ISO 15552 interchangeable cylinder exactly, specify: 40 mm bore, 1000 mm stroke, 30 mm adjustment, PT tapered port threads, and the -S magnet option. Given the 1000 mm stroke, ensure your mounting setup—whether Basic, FA, LB, TC, FTC, TCM1, or TCM2—includes proper external guidance to prevent rod binding.
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 SAIJ40BX1000-30S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm, providing a usable travel window of 970 to 1000 mm. This stopper only sets the travel end and does not lock the load without live air pressure.
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