Airtac SAIJ40 Adjustable Cylinder SAIJ40AX65-30
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX65-30 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 SAIJ40AX65-30
The AirTAC SAIJ40X65-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 65 mm travel back by up to 30 mm. This creates a highly versatile 35-65 mm usable stroke window, allowing you to dial in the exact end position during commissioning without adding external stops.
This specific SKU is configured with a SUS420J2 stainless steel rod (code A) for improved corrosion resistance compared to standard carbon steel. It uses PT tapered port threads and operates without a magnet. The extruded aluminum barrel incorporates sensor grooves on both sides, and the mounting set omits FB, CA, CB, and CR brackets, focusing entirely on Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX65-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX65-30 |
|---|---|
| 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 SAIJ40AX65-30
| 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 SAIJ40AX65-30 Is Used
Machine Setup Tuning
Dial in the exact 35 to 65 mm travel distance during initial commissioning to perfect the end-of-stroke position without swapping out physical cylinders.
Product Changeover
Quickly adapt the cylinder's effective stroke when running a new product size on the line, using the rear screw to shift the retract stop by up to 30 mm.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX65-30 the Right Cylinder?
Choose this 40 mm bore when your application requires more thrust than the 32 mm version (which provides 402 N at 0.5 MPa) but does not need the bulk of a 50 mm cylinder. The adjustable stroke is perfect for product changeovers on a line, letting you fine-tune the retract end position on the fly. Because the rear adjuster acts purely as a travel stop and the air cushions only manage deceleration, this cylinder will not hold a load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series. When matching ISO 15552 dimensions for a replacement, verify the 65 mm stroke, 30 mm adjustment, PT G1/4 port, and the correct mounting bracket.
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 SAIJ40AX65-30 FAQ
If you increase the pressure to 0.7 MPa, the push force rises to 879 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 65 mm stroke by up to 30 mm, providing a usable travel window of 35 to 65 mm. It only sets the end position and does not lock or hold the load without continuous 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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