Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 65mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke65 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-40
The AirTAC SAIJ100X65-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 25-65 mm window without adding external stops. It delivers substantial thrust, pushing 3927 N at 0.5 MPa and reaching 7068 N at 0.9 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This specific configuration features a SUS304 stainless steel rod (code B) for superior corrosion resistance and uses PT tapered port threads. The 25 mm rod diameter and M20x1.5 rod thread provide excellent rigidity, handling higher side loads effectively. The rear adjuster acts purely as a mechanical stop to set the retraction end position, and the variable air cushions at both ends manage deceleration without holding the load in place without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX65-40 Is Used
Machine Changeover
Dial in the exact retraction end-position from 25 to 65 mm during product size transitions on a packaging line without swapping out the entire actuator.
End-Stop Tuning
Use the rear mechanical stopper to fine-tune the final position of a tooling plate at commissioning, avoiding the need to machine custom external spacers.
High-Force Clamping
Leverage the 7068 N push force at 0.9 MPa to secure heavy workpieces, while the adjustable travel accommodates varying part thicknesses on the same fixture.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-40 the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (pushing 2513 N at 0.5 MPa) lacks sufficient force, but a 125 mm bore (6136 N) would be physically oversized for your machine footprint. The adjustable stroke is ideal for product changeovers or commissioning setups where the exact end-of-stroke position requires precise dialing-in rather than fabricating custom external stoppers.
To match this ISO 15552 interchangeable cylinder for a replacement, verify the 100 mm bore, 65 mm nominal stroke, 40 mm adjustment range, PT G1/2 ports, and the SUS304 rod material. Since the stroke is under 300 mm, side-load concerns are minimal, but always ensure the load is guided externally for optimal seal longevity. Remember that the rear adjuster is a travel stop, not a lock; for load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI series cylinder.
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 SAIJ100 Adjustable Cylinder SAIJ100BX65-40 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N. If operated at 0.9 MPa, the push force increases to 7068 N.
The SAIJ100X65-40 has a nominal 65 mm stroke with a 40 mm adjustment range, creating a usable travel window of 25 to 65 mm. A rear screw stopper physically limits the retract stroke, allowing you to set the exact end position during setup without changing the cylinder.
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