Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-30S
The AirTAC SAIJ63X210-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 180-210 mm from its 210 mm nominal stroke. Delivering a push force of 2182 N at 0.7 MPa, it is built with an SUS420J2 stainless steel rod and a PT tapered port. The extruded aluminum barrel features sensor grooves on both sides, and the integrated -S magnet works seamlessly with CMSE reed and DMSE electronic solid-state switches for precise position detection.
This adjustable-stroke design allows you to fine-tune the retract end position at commissioning without adding external stops or swapping the cylinder. The rear adjuster acts purely as a travel stop to set the end-of-stroke deceleration point; it does not hold the load without live air pressure. For applications requiring true load-holding without continuous pneumatic pressure, consider the SAIL pneumatic lock or BSAI clamp-lock series instead.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 210 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 SAIJ63AX210-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×210 | 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 SAIJ63AX210-30S Is Used
Stroke Commissioning
Dial in the exact 180-210 mm retract position during machine setup without physically swapping the cylinder or bolting on external stoppers.
Product Changeover
Quickly adapt the end-stop distance on automated lines when switching to a new product size, minimizing downtime and mechanical adjustments.
Sensor Integration
Leverage the built-in -S magnet with CMSE reed or DMSE solid-state switches mounted in the dual-side barrel grooves for precise end-of-travel feedback.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-30S the Right Cylinder?
Choose this 63 mm bore when your application requires the 2182 N push force at 0.7 MPa, stepping up from a 50 mm bore that provides 1374 N, or down from an 80 mm bore yielding 3518 N. The adjustable stroke is ideal for machine setups requiring variable end-stops during product changeovers, whereas a fixed-stroke SAI cylinder is better for rigid, unchanging travel requirements.
Because this model features a 210 mm stroke, it remains under the 1500 mm maximum standard limit, though any stroke of 300 mm or more would require an external guide to handle side loads. To achieve a true ISO 15552 replacement match, verify the 63 mm bore, 210 mm stroke, 30 mm adjustment, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR configurations.
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 SAIJ63AX210-30S FAQ
At a 0.7 MPa operating pressure, the 63 mm bore provides a push force of 2182 N and a pull force of 1402 N. The maximum thrust is 318 kgf at 1.0 MPa.
The rear adjuster screw allows you to trim the effective travel back by up to 30 mm, creating a usable 180-210 mm stroke window. It functions as a mechanical stop for end-position tuning, not as a lock, and does not hold the load without live air.
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