Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-10
The AirTAC SAIJ100X140-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 130-140 mm, allowing you to dial back the nominal 140 mm stroke by up to 10 mm during commissioning. Belonging to the 100 mm bore class, it delivers robust thrust up to 7068 N at 0.9 MPa, making it ideal for heavy-duty positioning tasks.
This unit features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads. It includes variable air cushions at both ends to decelerate the load. The rear adjuster acts strictly as a mechanical stop to fine-tune the end position; it is not a locking device and will not hold the load without live air pressure. For position-holding needs, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 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 SAIJ100AX140-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×140 | 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 SAIJ100AX140-10 Is Used
Machine Changeovers
Dial in the exact 130-140 mm end-stop during product size transitions on the line without replacing the cylinder or adding external stopper blocks.
Fixture Positioning
Fine-tune the clamping travel for varying part thicknesses, utilizing the 7068 N push force to secure heavy workpieces reliably.
Assembly Station Tuning
Adjust the rear stroke screw during initial commissioning to perfectly time the press motion, preventing over-travel and tooling damage.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-10 the Right Cylinder?
Select this 100 mm bore model when your application requires substantial force, pushing 5497 N at 0.7 MPa, combined with precise end-position tuning. If your force requirements are lower, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa. The adjustable stroke is chosen over a fixed SAI cylinder when you need variable end-stops to accommodate product changeovers without swapping the physical actuator.
To match this ISO 15552 replacement exactly, verify the 100 mm bore, 140 mm stroke, 10 mm adjustment range, PT ports, and the standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that SAIJ omits FB, CA, CB, and CR mounts. Because the stroke is under 300 mm, side-load stress is moderate, but the 25 mm rod and M20x1.5 thread still provide excellent rigidity for off-center loads.
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 SAIJ100AX140-10 FAQ
The rear adjuster screw lets you shorten the 140 mm nominal stroke by up to 10 mm, providing an effective travel window of 130-140 mm. This mechanical stop fine-tunes the retract position but does not lock the load without continuous air pressure.
As a 100 mm bore double-acting cylinder, it generates 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa. The pull force is 3681 N at 0.5 MPa due to the 25 mm rod displacement.
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