Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-75S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 150mm 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
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-75S
The AirTAC SAIJ63X150-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down by up to 75 mm. This yields a highly flexible usable travel window of 75 to 150 mm, letting you dial in the exact retract end-position at commissioning without swapping hardware. It delivers a robust 1559 N push force at 0.5 MPa, making it well suited for moderate to heavy actuation.
This unit is configured with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance, PT tapered ports, and an integrated magnet (-S) for position sensing. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily mount AirTAC CMSE reed or DMSE electronic solid-state switches exactly where your application requires.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-75S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 150 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 SAIJ63AX150-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×150 | 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 SAIJ63AX150-75S Is Used
Product Size Changeovers
Ideal for packaging lines that run varying carton sizes, using the 75 mm adjustment window to rapidly reconfigure the retract end-stop for different formats.
Commissioning Fine-Tuning
Perfect for dialing in precise end-positions during machine setup, allowing operators to trim the 150 mm stroke back to exactly 75 mm without adding external stops.
Adjustable Material Pressing
Provides 1559 N of adjustable pressing force at 0.5 MPa, accommodating varying material thicknesses by altering the effective stroke distance on the fly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-75S the Right Cylinder?
Choose this 63 mm bore when you need significantly more thrust than a 50 mm cylinder (which provides 982 N push at 0.5 MPa), but want to avoid the larger footprint and 2513 N output of an 80 mm unit. The 75 mm adjustment range is exceptionally wide, making this SKU ideal for machines that process multiple product sizes and require rapid changeovers. Because the rear screw acts purely as a mechanical stop to set deceleration and end-position, it does not hold the load without live air pressure. For true load-holding, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. To replace an ISO 15552 cylinder, match the 63 mm bore, 150 mm stroke, PT ports, and desired mounting hardware.
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 SAIJ63AX150-75S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 150 mm nominal stroke by up to 75 mm. This creates a usable travel window of 75 to 150 mm, which can be fine-tuned during commissioning without replacing the cylinder.
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