Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-75
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-75 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 SAIJ63X900-75
The AirTAC SAIJ63X900-75 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 900 mm nominal stroke that can be dialed back by up to 75 mm, creating an 825-900 mm usable travel window for exact end-position tuning during commissioning. Driven by a G3/8 port, it delivers 1559 N of pull force at 0.5 MPa.
This extruded aluminum profile cylinder includes variable air cushions at both ends and a 20 mm rod with an M16x1.5 thread. The rear adjuster acts purely as a mechanical stop to set the travel limit and does not lock the load without live air. For load-holding without pneumatic pressure, an external rod lock or a SAIL/BSAI variant is required.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-75 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-75 |
|---|---|
| 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 SAIJ63X900-75
| 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 SAIJ63X900-75 Is Used
Long-Stroke Machining Stops
Dial in the exact 825-900 mm retract position on long-stroke machining centers without remounting hardware or swapping the cylinder body.
Product Changeover Diverter
Quickly adjust the rear stopper by up to 75 mm to accommodate different package sizes on a conveyor line during product changeover.
Variable End-Position Clamping
Fine-tune the clamping reach on large assemblies where a fixed 900 mm stroke would over-travel, using the rear screw to set the precise limit.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-75 the Right Cylinder?
Choose this 63 mm bore when you need 1559 N pull force at 0.5 MPa and on-the-fly stroke trimming within an 825-900 mm window. If your application requires less force, the 50 mm bore provides 825 N pull; if you need more clamping power, the 80 mm bore yields 2268 N. The adjustable rear stopper allows you to fine-tune the retract position without swapping cylinders or adding external stops.
Because this cylinder features a 900 mm stroke, the unsupported rod length increases susceptibility to side-loading; an external guide is recommended to prevent premature seal wear. This configuration uses a standard carbon steel rod, PT tapered port threads, no sensor magnet, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB and CR brackets. It is dimensionally interchangeable per ISO 15552.
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 SAIJ63X900-75 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 1559 N of push force. At the maximum 1.0 MPa pressure, it can deliver up to 318 kgf.
The rear adjuster screw lets you shorten the 900 mm nominal stroke by up to 75 mm, providing an adjustable travel window of 825 to 900 mm. The adjuster functions as a mechanical stop and does not hold the load without continuous 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 SAIJ63X900-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.