Airtac SAIJ40 Adjustable Cylinder SAIJ40BX750-10
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX750-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 750mm 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
- Stroke750 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX750-10
The AirTAC SAIJ40X750-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 750 mm travel by up to 10 mm for a precise 740-750 mm usable window. It delivers 879 N of push force at 0.7 MPa, making it well-suited for medium-duty positioning tasks.
This configuration features a SUS304 stainless steel rod 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, ready for CMSE or DMSE switches if a magnet is added later.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX750-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX750-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 750 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 SAIJ40BX750-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×750 | 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 SAIJ40BX750-10 Is Used
Product Changeover
Quickly shift the retract end-stop by up to 10 mm to accommodate slightly different package lengths on a packaging line without changing hardware.
Commissioning Calibration
Fine-tune the final resting position of a 750 mm stroke during machine setup to achieve perfect alignment without adding external stopper blocks.
Long-Stroke Positioning
Move medium payloads with 879 N of push force at 0.7 MPa across a 740-750 mm travel window, relying on the SUS304 rod for durable, corrosion-resistant operation.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX750-10 the Right Cylinder?
Select this 40 mm bore when you need more force than a 32 mm cylinder (which provides 563 N push at 0.7 MPa) but want to avoid the bulk of a 50 mm unit. The adjustable stroke is ideal for fine-tuning the retract end-position during commissioning or product changeovers without swapping the cylinder. Because the stroke is 750 mm, an external guide is highly recommended to prevent excessive side-loading on the rod.
The rear adjuster acts strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. To match this ISO 15552 footprint exactly, specify a 40 mm bore, 750 mm stroke, 10 mm adjustment, PT port thread, and your required mounting style from the SAIJ set: 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 SAIJ40BX750-10 FAQ
At 0.7 MPa operating pressure, this 40 mm bore cylinder provides 879 N of push force and 528 N of pull force. It can achieve a maximum push force of 1130 N at 0.9 MPa.
The rear adjuster screw lets you shorten the effective stroke from the nominal 750 mm down to 740 mm, creating a 740-750 mm travel window. This allows for precise end-position tuning at commissioning without needing to replace the cylinder or add external stops.
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