Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 90mm 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
- Stroke90 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-20
The AirTAC SAIJ63X90-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 70-90 mm, allowing you to dial back the 90 mm nominal stroke by up to 20 mm during commissioning without adding external stops. In the 63 mm bore class, it delivers a robust 1559 N push force at 0.5 MPa and 2182 N at 0.7 MPa.\n\nThis model uses a carbon steel rod with an M16x1.5 thread, paired with PT tapered porting (G3/8) and 36 mm cushions at both ends. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE solid-state switches if a magnet is added later. The SAIJ mounting set omits FB, CA, CB, and CR brackets, supporting Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 90 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 SAIJ63X90-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×90 | 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 SAIJ63X90-20 Is Used
Machine Changeover
Quickly modify the retract end-stop by up to 20 mm when switching product sizes on a packaging line, avoiding cylinder replacement.
Commissioning Calibration
Fine-tune the 70-90 mm travel window during initial setup to perfectly time machine sequencing without external shims.
End-Position Trimming
Use the rear adjuster to absorb minor mechanical variations and set a precise retract position for repeatable clamping.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-20 the Right Cylinder?
Choose this 63 mm bore adjustable-stroke cylinder when your setup requires exact end-position tuning without swapping out physical components. If your application requires less force, stepping down to a 50 mm bore yields 982 N of push at 0.5 MPa; if you need more power, moving up to an 80 mm bore provides 2513 N. The rear adjuster screw acts purely as a mechanical stop to set the retract end position and does not hold the load without live air pressure. For positive load-holding, consider the SAIL lock or BSAI clamp-lock series instead. Because the stroke is under 300 mm, side-load risks are lower, but an external guide is still recommended for heavy lateral loads.
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 SAIJ63X90-20 FAQ
The rear adjuster screw lets you shorten the 90 mm nominal stroke by up to 20 mm, creating a 70-90 mm usable travel window for fine-tuning the retract end position.
At 0.5 MPa operating pressure, it provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
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 SAIJ63X90-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.