Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-50 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 SAIJ100AX135-50
The AirTAC SAIJ100X135-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 85 to 135 mm, allowing you to dial in the exact retract position without adding external stops. Delivering 3927 N of push force at 0.5 MPa, it is built for heavy-duty positioning tasks.
This unit features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop to set deceleration and end-of-travel limits, so it cannot hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-50 |
|---|---|
| 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 SAIJ100AX135-50
| 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 SAIJ100AX135-50 Is Used
Machine Changeover
Rapidly reconfigure the retract depth from 85 to 135 mm during product size changes on a packaging line without disassembling the actuator setup.
End-Stop Tuning
Fine-tune the final resting position of heavy press tooling at commissioning, absorbing kinetic energy via the adjustable stop and air cushion.
Variable Positioning
Handle multiple part sizes on a single conveyor by adjusting the rear stopper screw to set the exact ejection distance per batch.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-50 the Right Cylinder?
Choose this 100 mm bore when the 80 mm variant's 2513 N push force is insufficient for your tooling payload. The 50 mm adjustment range is ideal for product changeovers, letting you shift the end-stop on the fly rather than swapping out a fixed-stroke SAI cylinder. When matching ISO 15552 dimensions, specify the 100 mm bore, 135 mm stroke, 50 mm adjuster, PT ports, and the SUS420J2 rod material. Since the stroke is under 300 mm, side-load concerns are minimal, but an external guide is still recommended for heavy 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 SAIJ100AX135-50 FAQ
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 50 mm. This creates a usable travel window between 85 mm and 135 mm, which is set mechanically during commissioning.
At a 0.5 MPa operating pressure, the 100 mm bore generates 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
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