Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 1000mm 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
- Stroke1000 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-20
The AirTAC SAIJ63X1000-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 980-1000 mm usable travel window, allowing you to dial in the exact retract position without adding external stops. It delivers 1559 N pull force at 0.5 MPa, making it robust enough for demanding machine changeovers.
This variant uses an SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Since the 1000 mm stroke approaches the limits of unsupported travel, utilizing an external guide is recommended to prevent rod sag and premature seal wear.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 1000 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 SAIJ63AX1000-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×1000 | 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 SAIJ63AX1000-20 Is Used
Machine Changeover
Fine-tune the 980-1000 mm retract position during product family changeovers without swapping out the entire actuator.
Variable End Stops
Adjust the stroke end-point on the fly to accommodate varying package sizes moving down a long handling line.
Long-Stroke Positioning
Dial in the exact end-of-stroke location on a 1000 mm stroke assembly rig where fixed stops are impractical.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-20 the Right Cylinder?
Choose this 63 mm bore when you need precise retract end-position tuning over a long 1000 mm stroke, stepping up from a 50 mm bore that offers only 825 N pull force at 0.5 MPa. The 20 mm adjustment window is perfect for product-size changes on a line, whereas a fixed SAI cylinder would require shimming or physical spacers to alter the end stop.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 1000 mm stroke, PT port threads, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, select the SAIL or BSAI series instead.
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 SAIJ63AX1000-20 FAQ
At 0.5 MPa, this 63 mm bore cylinder provides 1559 N pull force and 2182 N push force at 0.7 MPa. It operates at speeds between 30-800 mm/s.
The rear adjuster screw lets you shorten the effective stroke by up to 20 mm, creating a 980-1000 mm usable travel window. It functions as a mechanical stop to fine-tune the retract position and does not lock the load without air pressure.
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