Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 40mm 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
- Stroke40 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-40
The AirTAC SAIJ100X40-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, designed to deliver robust thrust in compact machine setups. With a nominal 40mm stroke and a 40mm adjustment range, it provides a fully variable 0-40mm usable travel window. This allows you to fine-tune the retract end-position precisely at commissioning without swapping out the cylinder or adding external stops.
In this configuration, the 100mm bore generates 3927N of push force at 0.5MPa and up to 7068N at 0.9MPa. The extruded aluminum barrel features dual sensor grooves compatible with AirTAC CMSE reed and DMSE electronic switches. The standard carbon steel rod and M20x1.5 thread offer high side-load resistance, while the PT tapered G1/2 port ensures reliable pneumatic flow.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 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 SAIJ100X40-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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 SAIJ100X40-40 Is Used
Precision End-Stop Tuning
Dial in the exact retract position during machine commissioning using the 0-40mm rear adjustment screw, eliminating the need for custom spacer shims on varying product lines.
Product Size Changeover
Quickly adapt clamping or positioning stops when switching between different workpiece heights on a conveyor, leveraging the full 40mm travel window without changing the cylinder.
High-Force Positioning
Utilize the 7068N push force at 0.9MPa for heavy-duty lifting or pressing tasks within compact machinery where a standard 40mm stroke is sufficient but high output is required.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-40 the Right Cylinder?
Choose this 100mm bore adjustable cylinder when an application demands high force alongside strict end-position tuning, such as varying product sizes on a line. If you need slightly less thrust, stepping down to an 80mm bore yields 2513N at 0.5MPa, but the 100mm bore is preferable for heavier fixtures. The SAIJ100X40-40 is dimensionally interchangeable per ISO 15552, utilizing a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) that omits FB, CA, CB, and CR brackets.
Remember that the rear adjuster acts strictly as a travel stop to decelerate the load, not as a lock. A plain SAIJ cylinder does not hold its position without live air pressure; for true load-holding, consider the SAIL lock or BSAI clamp-lock variants. Because the 40mm stroke is short, external guide rails are less critical here than on longer strokes, but the adjuster still requires live air to maintain position.
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 SAIJ100X40-40 FAQ
At a standard 0.5MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. If pressure is increased to 0.9MPa, the push force reaches 7068N.
The SAIJ100X40-40 has a nominal 40mm stroke with a 40mm adjustment range, creating a 0-40mm usable travel window. You turn the rear adjusting screw to mechanically shorten the retract stroke as needed. Note that this adjuster is a stop, not a lock; the cylinder requires live air to hold position.
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