Airtac SAIJ40 Adjustable Cylinder SAIJ40BX65-30S
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40BX65-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 65mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke65 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX65-30S
The AirTAC SAIJ40X65-30-S is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a usable travel window of 35 to 65 mm, allowing you to dial back the nominal 65 mm stroke by up to 30 mm during machine commissioning.
This variant uses a SUS304 stainless steel rod (code B) for superior corrosion resistance and includes a built-in magnet (-S) for electronic or reed sensing. It features PT tapered ports and dual-side sensor grooves compatible with AirTAC CMSE reed and DMSE solid-state switches. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX65-30S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX65-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 65 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 | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX65-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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 SAIJ40BX65-30S Is Used
Machine Setup Tuning
Dial in the exact end-of-stroke position within the 35-65 mm window during initial commissioning without swapping hardware.
Product Size Changeover
Quickly retract the end-stop by up to 30 mm to accommodate different package lengths on a packaging line.
Variable End Stops
Use the integrated rear screw to fine-tune the travel limit for delicate pressing or clamping tasks.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX65-30S the Right Cylinder?
The 30 mm adjustment range is ideal for product changeovers, letting you set variable end-stops without physically swapping the cylinder or adding external stopper blocks.
For load-holding requirements without continuous air pressure, note that the rear adjuster acts only as a travel stop, not a brake. You should specify an SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external pilot-operated check valve. To match this ISO 15552 cylinder exactly, confirm the 40 mm bore, 65 mm stroke, 30 mm adjuster, PT port thread, and the -S magnet option.
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 SAIJ40BX65-30S FAQ
The rear adjuster screw lets you mechanically shorten the 65 mm nominal stroke by up to 30 mm, creating a usable travel window of 35 to 65 mm. It acts as a physical stop and does not lock the load without live air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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