Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 400mm 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
- Stroke400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10
The AirTAC SAIJ63X400-10 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a 390-400 mm usable travel window, allowing you to trim the effective stroke by up to 10 mm during commissioning without swapping components. Equipped with a G3/8 port and a 20 mm rod, it delivers 2182 N of push force at 0.7 MPa.
This variant uses a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet, meaning CMSE or DMSE switches cannot be used without modification. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 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 SAIJ63AX400-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×400 | 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 SAIJ63AX400-10 Is Used
Machine Changeover
Dial in the exact 390-400 mm end position during product size changes without adding external stopper blocks to the machine frame.
End-Position Trimming
Fine-tune the retract stroke by up to 10 mm at commissioning to perfect the seating of a 1559 N tooling operation.
Material Handling
Adjust the stroke window on a 400 mm travel diverter to account for wear or slight variations in package dimensions.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10 the Right Cylinder?
Choose this 63 mm bore when you need 1559 N push force at 0.5 MPa, stepping up from a 50 mm bore that yields 982 N, or stepping down from an 80 mm bore providing 2513 N. The 10 mm rear adjuster is ideal for fine-tuning the end position on product changeovers, whereas a fixed SAI cylinder locks you into a single 400 mm dimension. The rear screw acts only as a travel stop and does not hold the load without live air; for true load-holding, consider an external rod lock or the SAIL series.
Because the 400 mm stroke is relatively long, the 20 mm rod and M16x1.5 thread still require external guidance to prevent excessive side-loading on the piston. This cylinder is dimensionally interchangeable per ISO 15552. Ensure your setup matches the PT tapered port thread, the specified SUS420J2 rod material, and the reduced SAIJ mounting set.
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 SAIJ63AX400-10 FAQ
At 0.5 MPa, it provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
A rear screw stopper lets you shorten the 400 mm nominal stroke by up to 10 mm, creating a 390-400 mm travel window. It functions as a stop only, not a lock, and does not hold the load without continuous air pressure.
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