Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100S 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 SAIJ63AX210-100S
The AirTAC SAIJ63X210-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 110 to 210 mm. It delivers a robust 1559 N pull force at 0.5 MPa, making it well-suited for mid-range actuation tasks. The barrel is extruded aluminum with sensor grooves on both sides, and this specific configuration includes a SUS420J2 stainless steel rod and a magnet for position detection.
Because the adjuster acts as a retract-end stop rather than a lock, it decelerates the piston to fine-tune the end position without requiring live air to hold the load. For applications requiring genuine load-holding without continuous air pressure, an external rod lock or a related AirTAC series like SAIL or BSAI is necessary. The unit features PT tapered port threads and operates at speeds between 30 and 800 mm/s.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100S |
|---|---|
| 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 SAIJ63AX210-100S
| 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 SAIJ63AX210-100S Is Used
Machine Changeovers
Dial in the exact retract position from 110 to 210 mm during product size transitions without physically swapping out the cylinder.
End-Stop Tuning
Fine-tune the final end position at commissioning using the rear adjuster, avoiding the need to add bulky external mechanical stops.
Variable Positioning
Adapt actuation travel on automated lines by adjusting the stroke window on the fly, paired with CMSE or DMSE sensors for precise feedback.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-100S the Right Cylinder?
Choose this 63 mm bore when you need more force than the 50 mm option (982 N push at 0.5 MPa) but want to avoid the larger footprint and higher air consumption of an 80 mm bore. The 100 mm adjustment range is ideal for machines that undergo frequent product changeovers, allowing operators to dial in the exact end-stop without swapping the cylinder or adding external physical stops.
When replacing an ISO 15552 cylinder, verify the 63 mm bore, 210 mm nominal stroke, 100 mm adjustment requirement, PT G3/8 port, and the -S magnet. Since the stroke is 210 mm, ensure your mounting arrangement supports the load properly; even with the 20 mm rod diameter and M16x1.5 thread providing good side-load capacity, long unsupported strokes still require an external guide. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR.
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 SAIJ63AX210-100S FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N of push force. At 0.9 MPa, the push force reaches 2805 N.
The rear adjuster allows you to shorten the effective travel from the 210 mm nominal stroke by up to 100 mm, creating a usable stroke window of 110 to 210 mm. The adjuster acts as a travel stop to set the position, but it does not lock or hold the load without live air pressure.
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