Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 135mm 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
- Stroke135 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-40
The AirTAC SAIJ100X135-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 135 mm travel by up to 40 mm for a usable window of 95-135 mm. It delivers a robust 3927 N push force at 0.5 MPa, making it well suited for heavy-duty positioning tasks.
This unit features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides, and because no magnet is specified, position sensing would require adding a -S variant to use with AirTAC CMSE or DMSE switches.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 135 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 SAIJ100AX135-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×135 | 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 SAIJ100AX135-40 Is Used
Machine Commissioning
Dial in the exact 95 to 135 mm retract distance during setup without machining new hard stops or changing the cylinder.
Product Changeover
Quickly adapt the end-of-stroke position on a line running mixed product sizes by turning the rear adjustment screw.
Heavy Clamping
Leverage the 3927 N push force at 0.5 MPa to secure heavy workpieces while fine-tuning the clamp contact point.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-40 the Right Cylinder?
Choose this 100 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is insufficient but an 80 mm bore (2513 N) leaves too little force margin. The adjustable 95-135 mm travel window is ideal for fine-tuning retract end positions during machine commissioning or product changeovers without swapping the entire cylinder or adding external stops. While the 135 mm stroke is relatively short, if your application extends beyond 300 mm, you should incorporate an external guide to manage side loads.
For an exact ISO 15552 replacement, match the 100 mm bore, 135 mm stroke, 40 mm adjustment code, PT port threads, and your required mounting option from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series.
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 SAIJ100AX135-40 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as an external stopper that lets you shorten the effective stroke from its nominal 135 mm down to 95 mm. It only sets the travel end and does not lock the load without continuous air pressure.
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