Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100 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 SAIJ63AX210-100
The AirTAC SAIJ63X210-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 210 mm travel back by up to 100 mm. This creates a highly flexible usable stroke window of 110 to 210 mm, letting you fine-tune end positions at commissioning without adding external stops. Delivering a robust 2182 N of push force at 0.7 MPa, it is built with a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses a PT tapered G3/8 port.
Unlike a fixed-stroke SAI cylinder, this model integrates a rear mechanical stopper for precise end-position tuning on product changeovers. The adjuster acts solely as a travel limiter and works alongside the standard 36 mm air cushions at both ends to decelerate the load; it does not hold the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, and the M16x1.5 rod thread provides a robust interface for your tooling.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100 |
|---|---|
| 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 SAIJ63AX210-100
| 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 SAIJ63AX210-100 Is Used
Variable Product Changeover
Dial in the exact end-stop between 110 and 210 mm during product size changes without physically swapping the cylinder or adding external shims.
Machine Setup Commissioning
Fine-tune the retract end-position during initial machine commissioning to achieve perfect tooling alignment without machining custom spacers.
Adjustable Assembly Pressing
Apply up to 2182 N of push force at 0.7 MPa for pressing operations that require slightly different travel distances on the same line.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100 the Right Cylinder?
Choose this 63 mm bore when your application requires more force than a 50 mm cylinder (which provides 1374 N push at 0.7 MPa) but does not need the larger footprint of an 80 mm unit. The 100 mm adjustment range is ideal for machines processing variable product sizes, allowing you to dial in the exact end-stop without swapping cylinders. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Because the 210 mm stroke exceeds 300 mm when fully extended to its maximum 210 mm limit, ensure you use an external guide to support the load and prevent excessive side-loading on the M16x1.5 rod. Remember that the rear adjuster is a stop, not a lock; for position holding without live air, consider an AirTAC SAIL or BSAI cylinder. To replace an ISO 15552 cylinder, match the 63 mm bore, 210 mm stroke, 100 mm adjust, PT G3/8 port, and desired mounting.
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 SAIJ63AX210-100 FAQ
At 0.7 MPa operating pressure, this 63 mm bore cylinder generates 2182 N of push force and 1402 N of pull force. It can reach a maximum of 318 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that shortens the 210 mm nominal stroke by up to 100 mm, providing a usable travel window of 110 to 210 mm. It only limits travel and does not lock the load without live air.
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