Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 195mm 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
- Stroke195 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-30S
The AirTAC SAIJ63X195-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from the 195mm nominal stroke to a minimum of 165mm. This 30mm adjustment window is ideal for dialing in exact end positions during machine commissioning or product changeovers without swapping hardware. The 63mm bore delivers 2182N of push force at 0.7MPa, supported by a 20mm carbon steel rod core and M16x1.5 rod thread to handle side loading.
This SKU ships with an SUS420J2 stainless steel rod (option A) for corrosion resistance and includes a piston magnet (-S) for position sensing. It integrates AirTAC CMSE reed and DMSE electronic sensors via dual-sided extruded barrel grooves. The SAIJ mounting set omits FB, CA, CB, and CR brackets, utilizing Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces for ISO 15552 dimensional interchangeability.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 195 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 SAIJ63AX195-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×195 | 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 SAIJ63AX195-30S Is Used
Product Changeover
Dial in the exact 165-195mm end position when switching between product sizes on a packaging line, using the 30mm rear adjuster to avoid re-machining hard stops.
Assembly Calibration
Fine-tune the clamping travel during machine commissioning, ensuring the 2182N push force at 0.7MPa contacts the workpiece precisely without over-stroking.
Variable End Stops
Set custom retract limits on testing fixtures where the effective stroke must be adjusted between cycles without replacing the entire ISO 15552 cylinder.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-30S the Right Cylinder?
Choose this 63mm bore when a 50mm bore (982N push at 0.5MPa) is too weak but an 80mm bore (2513N push at 0.5MPa) is physically oversized. The 30mm adjustment range provides a 165-195mm travel window, letting operators set variable end stops on the fly instead of machining external hard stops or buying a fixed-stroke SAI cylinder. For strokes at or near 195mm, the 20mm rod and M16x1.5 thread provide rigidity, but an external guide is still recommended for heavy radial loads.
This configuration uses PT tapered ports and includes a magnet for CMSE/DMSE switches. Remember that the rear adjuster acts only as a travel stop and the air cushions manage deceleration; neither holds the load without live air. If your application requires true fail-safe load holding, select the SAIL (air-released lock) or BSAI (clamp-lock) series instead of relying on the SAIJ adjuster.
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 SAIJ63AX195-30S FAQ
At 0.7MPa operating pressure, this 63mm bore cylinder generates 2182N of push force and 1402N of pull force. It can deliver up to 318 kgf at its maximum rated pressure of 1.0MPa.
The rear adjuster screw lets you mechanically shorten the 195mm nominal stroke by up to 30mm, providing a usable travel window of 165-195mm. It acts as a physical stop to set the end position and does not lock or hold the load without continuous air pressure.
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