Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-75S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-75S 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 SAIJ63X90-75S
The AirTAC SAIJ63X90-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 1559N of push force at 0.5 MPa and features a wide 15-90mm usable travel window, allowing you to dial back the 90mm nominal stroke by up to 75mm during commissioning. This extreme adjustability is ideal for product changeovers, eliminating the need to physically swap cylinders or bolt on external stops.
This version includes a magnet for position sensing and is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches, which drop neatly into the sensor grooves on both sides of the extruded aluminum barrel. It uses a G3/8 PT tapered port and a 20mm carbon steel rod with an M16x1.5 thread. The rear adjuster acts purely as a mechanical stop to set the retract end position; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-75S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-75S |
|---|---|
| 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 SAIJ63X90-75S
| 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 SAIJ63X90-75S Is Used
Variable End-Stop Tuning
Perfect for testing jigs where the retract position must be dialed in precisely between 15 and 90mm without machining new hard stops.
Product Size Changeover
Rapidly adapt packaging machinery to different carton sizes by adjusting the cylinder's effective stroke via the rear screw.
Sensor-Ready Actuation
The integrated -S magnet pairs with DMSE solid-state sensors to confirm the adjusted end position in automated assembly lines.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-75S the Right Cylinder?
Selecting this 63mm bore model makes sense when your application requires high thrust (1559N at 0.5 MPa) but frequent, wide-ranging travel adjustments. If you need less force, stepping down to a 50mm bore yields 982N at 0.5 MPa. Choose the SAIJ adjustable-stroke format over a fixed SAI cylinder when you need precise end-position tuning at machine setup or when accommodating varying product sizes on a single line.
For a dimensionally interchangeable ISO 15552 replacement, match the 63mm bore, 90mm stroke, 75mm adjustment, PT G3/8 port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR footprints. Because the 90mm stroke is relatively short, side-load risks are minimal, but always guide the load to protect the 20mm rod. For true load-holding without live air, consider an AirTAC SAIL or BSAI cylinder instead of relying on the adjuster.
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 SAIJ63X90-75S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the 90mm nominal stroke by up to 75mm, providing a usable travel window of 15-90mm. It sets the end position but does not lock the load without live air.
This 63mm bore cylinder generates 1559N of push force and 1402N of pull force at 0.5 MPa. It can reach up to 2182N push force at 0.7 MPa.
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 SAIJ63X90-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.