Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-30S 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 SAIJ100X40-30S
The AirTAC SAIJ100X40-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 3927N of push force at 0.5MPa and features a 25mm carbon steel rod with an M20x1.5 thread. The built-in magnet (-S) supports position sensing.
This specific SKU provides a usable travel window of 10-40mm, allowing you to dial back the 40mm nominal stroke by up to 30mm. Rather than machining custom spacers or swapping cylinders during product changeovers, the external rear stopper lets you fine-tune the retract end-position directly at commissioning. The adjuster acts purely as a travel stop and does not hold the load without live air.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-30S |
|---|---|
| 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 SAIJ100X40-30S
| 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 SAIJ100X40-30S Is Used
Precision End-Position Tuning
Dial in the exact retract distance within a 10-40mm window during machine commissioning without machining custom spacers.
Product Size Changeover
Quickly adapt the cylinder's stroke on packaging lines when switching to a different product size that requires less travel.
Heavy-Duty Clamping
Utilize the 3927N push force at 0.5MPa to securely hold large workpieces while allowing slight stroke adjustments for varying part thicknesses.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X40-30S the Right Cylinder?
Choose this 100mm bore when you need heavy thrust (3927N push at 0.5MPa) that a 63mm bore (1559N) cannot provide, but a 125mm unit (6136N) would be overkill. The adjustable 10-40mm travel window is ideal for setups requiring precise end-position tuning without external stops. For exact ISO 15552 replacement matching, verify the 40mm stroke, 30mm adjustment range, G1/2 PT port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the 40mm stroke is relatively short, side-loading is less of a concern than with longer strokes, but the 25mm rod still handles substantial lateral loads. Remember that the rear adjuster only sets the travel end; it is not a lock. For load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ100X40-30S FAQ
At 0.5MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7MPa, the push force increases to 5497N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 40mm nominal stroke by up to 30mm. This creates a usable travel window of 10-40mm, which can be fine-tuned during setup. The adjuster is a stop, not a lock, so it will not hold the load without live air pressure.
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