Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X750-20S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X750-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 750mm 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
- Stroke750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X750-20S
The AirTAC SAIJ63X750-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 63 mm bore and a 750 mm stroke, delivering 1559 N of push force and 1402 N of pull force at 0.5 MPa. The built-in magnet (-S) enables position detection with AirTAC CMSE reed or DMSE solid-state sensors fitted into the dual-side sensor grooves.
With a 20 mm adjustment code, this model provides a usable travel window of 730-750 mm. This rear stopper allows you to fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops. It uses a PT tapered port (G3/8) and includes variable air cushions at both ends to manage deceleration over the long travel.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X750-20S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X750-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 750 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 SAIJ63X750-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×750 | 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 SAIJ63X750-20S Is Used
Machine Changeover
Dial in the 730-750 mm retract position during product size changes without disassembling the line or adding external mechanical stops.
Long-Stroke End-Tuning
Fine-tune the end-of-stroke position on extended 750 mm travel axes to compensate for mechanical wear or sensor drift over time.
Sensor-Equipped Automation
Leverage the integrated magnet and dual sensor grooves to mount CMSE or DMSE switches for precise positioning feedback in automated assembly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X750-20S the Right Cylinder?
Choose this 63 mm bore if you need more thrust than the 50 mm option (982 N push at 0.5 MPa) but want to avoid the larger 80 mm footprint (2513 N push). The adjustable 730-750 mm travel window is ideal for machine setups requiring variable end-stops during product changeovers. Because the 750 mm stroke is long and unsupported, an external guide is recommended to handle side loads and prevent rod deflection. The 20 mm diameter carbon steel rod and M16x1.5 thread provide a robust interface, but the rear adjuster and cushions act only as travel stops—they do not hold the load without live air. For load-holding without pressure, consider an external rod lock or the SAIL/BSAI series. This cylinder is dimensionally interchangeable per ISO 15552 and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ63X750-20S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. It can reach up to 2805 N push force at its maximum 1.0 MPa pressure rating.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back by up to 20 mm, creating a 730-750 mm usable stroke window. It sets the end position and works with the air cushions for deceleration, but it does not lock or hold the load without continuous air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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