Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 135mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke135 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100
The AirTAC SAIJ63X135-100 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stopper that allows you to fine-tune the effective stroke. With a nominal travel of 135 mm and a 100 mm adjustment range, you can dial back the end position anywhere within a 35 to 135 mm usable window. This bore size provides 1559 N of push force at 0.5 MPa, making it well-suited for medium-duty positioning tasks.
Configured with an SUS420J2 stainless steel rod for enhanced corrosion resistance and PT tapered port threads, this model omits the standard magnet. The extruded aluminum barrel includes sensor grooves on both sides, while the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. The rear adjuster acts purely as a travel stop to set deceleration, meaning it will not hold a load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 135 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100 Is Used
Variable End-Stop Setup
Dial in the exact retraction point between 35 and 135 mm during machine commissioning without swapping hardware.
Product Changeover Lines
Quickly adapt the cylinder travel to accommodate different product lengths on a single conveyor or clamping station.
Precision Positioning
Leverage the 100 mm fine-tuning range to set exact end positions for medium-force 1559 N actuation tasks.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100 the Right Cylinder?
Choose this 63 mm bore when your application requires roughly 1559 N of push force at 0.5 MPa, or 2182 N at 0.7 MPa. If your changeover requirements demand trimming the stroke by less than 100 mm, a smaller adjustment code like SAIJ63X135-50 would suffice. Conversely, if you need to step up to 2513 N of push force, the 80 mm bore is the next option. The massive 100 mm adjustment window here is ideal for product-size changes on a single line, eliminating the need to physically swap cylinders or bolt on external stops during commissioning.
Because this is a double-acting cylinder, it requires continuous air pressure to maintain position; the rear stopper is not a lock. For drop-down load holding without live air, consider the SAIL or BSAI series instead. When integrating this into an existing setup, note it is dimensionally interchangeable per ISO 15552. Ensure your fluid is filtered to 40 um, operating pressure stays within 0.15-1.0 MPa, and utilize the G3/8 port for optimal flow.
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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX135-100 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 135 mm nominal stroke by up to 100 mm. This provides a usable travel window of 35 to 135 mm. The adjuster only sets the end position; it does not lock the load without live air pressure.
At 0.5 MPa, the SAIJ63X135-100 provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
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