Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-75
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-75
The AirTAC SAIJ63X800-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. With a nominal 800 mm stroke and a 75 mm adjustment range, you can fine-tune the retract end position within a 725-800 mm usable travel window. It delivers a robust 1559 N pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches. A 20 mm piston rod with an M16x1.5 thread handles high side loads, while the PT tapered G3/8 port ensures reliable pneumatic flow. The mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-75 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 800 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 SAIJ63X800-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×800 | 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 SAIJ63X800-75 Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 725-800 mm window during commissioning to accommodate different product sizes without changing cylinders.
Long-Stroke Material Handling
Ideal for pushing or lifting items along an extended conveyor line, using the 1559 N pull force to move heavy cartons reliably.
Machine Changeover
Rapidly adjust the stroke end-position on packaging or assembly machinery when switching between product variants, saving setup time.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-75 the Right Cylinder?
Choose this 63 mm bore when you need more force than a 50 mm cylinder (which provides 825 N pull at 0.5 MPa) but want to avoid the bulk of an 80 mm unit. The 75 mm adjustment screw is ideal for product changeovers, letting you dial in the exact end-stop without swapping the cylinder or adding external stops. Because the stroke is 800 mm, an external guide is highly recommended to prevent rod binding and manage side loads over long unsupported distances.
For ISO 15552 interchangeability, match the 63 mm bore, 800 mm stroke, 75 mm adjustment, PT G3/8 port, and your required mounting. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an external rod lock, a pilot-operated check valve, or the SAIL and BSAI cylinder series.
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 SAIJ63X800-75 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 at 0.7 MPa.
The rear adjuster acts as an external mechanical stopper that lets you shorten the effective stroke from 800 mm down to 725 mm. It allows fine-tuning of the end position at commissioning without adding external stops, though it does not lock the load without live air pressure.
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