Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-75S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-75S 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 SAIJ63AX210-75S
The AirTAC SAIJ63X210-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 210 mm stroke that can be dialed back by up to 75 mm, yielding a highly flexible 135-210 mm usable travel window for precise end-position tuning during commissioning. Delivering 1559 N pull force at 0.5 MPa, it handles robust actuation tasks with ease.
This variant features a SUS420J2 stainless steel rod for improved corrosion resistance and includes a standard magnet for position sensing. The extruded aluminum barrel integrates dual sensor grooves compatible with AirTAC CMSE reed and DMSE electronic switches. It uses a PT G3/8 port and relies on adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-75S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-75S |
|---|---|
| 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 SAIJ63AX210-75S
| 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 SAIJ63AX210-75S Is Used
Product Changeover
Dial in the exact retract distance from 135 to 210 mm on packaging lines when switching to a different carton size, eliminating the need to physically swap out the actuator.
Machine Setup
Use the 75 mm rear stopper screw to fine-tune the end-of-stroke position during initial commissioning, perfectly timing the machine sequence without adding external hard stops.
Variable End-Stop Forming
Adjust the stroke window on the fly for metal forming or clamping fixtures that need to accommodate varying material thicknesses while maintaining 1559 N of pulling force.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-75S the Right Cylinder?
Choose this 63 mm bore when your application requires the 1559 N pull force at 0.5 MPa, stepping up from the 50 mm bore that provides 825 N. The 75 mm rear adjustment screw is highly valuable for machine setups requiring variable end-stops or frequent product-size changeovers, allowing you to fine-tune the retract position without swapping the cylinder or adding external stops. If you need to hold the load without live air pressure, note that the rear adjuster acts only as a travel stop, not a lock; you should instead select an SAIL or BSAI cylinder.
For ISO 15552 replacement matching, specify a 63 mm bore, 210 mm stroke, 75 mm adjustment range, PT G3/8 port, and a magnet (-S). The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Because the 210 mm stroke is relatively long, ensure adequate external guiding to prevent excessive side-loading on the 20 mm diameter rod and M16x1.5 rod thread.
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 SAIJ63AX210-75S FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of pull force and 2182 N of push force. It can reach a maximum push force of 2805 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective stroke from its nominal 210 mm down to 135 mm, providing a 135-210 mm travel window. This stopper decelerates the travel end but does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.