Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-40S 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 SAIJ63X800-40S
The AirTAC SAIJ63X800-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stopper, allowing you to fine-tune the retract end position during commissioning. With a nominal 800 mm stroke and a 40 mm adjustment range, the usable travel window spans 760 to 800 mm. This bore size delivers a robust 2182 N push force at 0.7 MPa, making it suitable for moderate-to-heavy industrial handling.
This variant includes a standard -S magnet for position sensing using AirTAC CMSE reed or DMSE solid-state switches, which seat directly into the dual-side sensor grooves on the extruded aluminum barrel. The rear adjuster acts purely as a travel stop to dial in the end position without adding external stops; it does not hold the load pneumatically. For load-holding without live air pressure, consider the SAIL or BSAI series.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-40S |
|---|---|
| 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 SAIJ63X800-40S
| 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 SAIJ63X800-40S Is Used
Machine Changeovers
Dial in the 760-800 mm travel window during product size transitions without physically swapping the cylinder or adding external mechanical stops.
Extended Transfer Lines
Provides 2182 N of push force at 0.7 MPa to index heavy pallets over an 800 mm stroke while fine-tuning the retract position to match conveyor stops.
End-Position Tuning
Use the 40 mm rear stopper screw to precisely set the retracted end position during initial commissioning, compensating for mechanical tolerance stack-ups.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-40S the Right Cylinder?
Choose this 63 mm bore when an application requires around 2182 N of push force at 0.7 MPa, stepping up from a 50 mm bore that provides 1374 N, or stepping down from an 80 mm bore yielding 3518 N. An adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops for machine changeovers or product-size transitions, saving the cost of swapping the entire cylinder.
Because this 800 mm stroke is substantial, the 20 mm carbon steel rod and M16x1.5 thread will experience amplified side-load leverage if the load is unsupported; an external guide rail is strongly recommended to prevent binding. For a true ISO 15552 dimensional replacement, match the 63 mm bore, 800 mm stroke, 40 mm adjustment, PT tapered G3/8 port, and -S magnet, utilizing the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set.
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 SAIJ63X800-40S FAQ
At a 0.7 MPa operating pressure, this 63 mm bore double-acting cylinder generates 2182 N of push force and 1402 N of pull force. It can reach up to 318 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the effective travel from the 800 mm nominal stroke by up to 40 mm, creating a 760-800 mm usable window. The adjuster is a mechanical stop, not a lock, so it cannot hold the load without live air pressure.
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