Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-30
The AirTAC SAIJ63X900-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that creates an 870-900 mm usable travel window. Delivering 1559 N of pull force at 0.5 MPa, it utilizes a G3/8 port and a 20 mm carbon steel rod with an M16x1.5 thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model allows precise end-position tuning during commissioning without adding external stops. The rear adjuster functions strictly as a travel stop for deceleration, not a load-holding lock. For applications requiring position maintenance without live air pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 900 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 SAIJ63X900-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×900 | 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 SAIJ63X900-30 Is Used
Long-Stroke Machine Setup
Fine-tune the 870-900 mm travel endpoint precisely during equipment commissioning to accommodate varying material thicknesses without hardware changes.
Product Changeover
Quickly adjust the extended stop position on packaging lines when switching between different product sizes, minimizing production downtime.
Material Handling
Utilize the 1559 N pull force to actuate heavy pushers over long distances, relying on the rear stop to set exact ejection points.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-30 the Right Cylinder?
Choose this 63 mm bore when you need more force than a 50 mm cylinder (825 N pull at 0.5 MPa) but want a smaller footprint than an 80 mm option (2268 N pull). The adjustable 870-900 mm window is perfect for dialing in exact endpoints on long-stroke machinery. When replacing an ISO 15552 cylinder, match the 900 mm stroke, 30 mm adjustment, G3/8 PT ports, and mounting style.
Because the 900 mm stroke is lengthy, the 20 mm rod requires external guiding to prevent excessive side-loading and premature seal wear. Standard mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that this plain version lacks a magnet; adding an -S suffix enables CMSE reed or DMSE electronic sensors.
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 SAIJ63X900-30 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N of push force at 0.7 MPa. The maximum thrust is 318 kgf at 1.0 MPa.
The rear adjusting screw allows you to shorten the 900 mm nominal stroke by up to 30 mm, providing an effective travel window of 870 to 900 mm. It acts as a mechanical stop and does not lock the load without air pressure.
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