Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X85-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X85-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 85mm 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
- Stroke85 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X85-10S
The AirTAC SAIJ63X85-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 1559N push force at 0.5 MPa and uses a G3/8 port. The built-in magnet enables position sensing with CMSE reed and DMSE electronic switches. By turning the rear stopper screw, you can trim the nominal 85mm travel back by up to 10mm, yielding a precise 75-85mm usable stroke window for exact end-position tuning.
This adjustable design eliminates the need to swap cylinders or bolt on external stops during commissioning or product changeovers. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It supports a reduced set of mounting interfaces—Basic, FA, LB, TC, FTC, TCM1, and TCM2—omitting FB, CA, CB, and CR. The standard carbon steel rod and M16x1.5 thread offer robust load handling for medium-duty tasks.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X85-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X85-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 85 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 SAIJ63X85-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×85 | 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 SAIJ63X85-10S Is Used
Machine Setup Calibration
Fine-tune the 75-85mm travel window during initial commissioning to perfectly strike a workpiece without machining custom spacer blocks.
Product Changeover Stops
Quickly dial back the stroke by up to 10mm on the line when switching to a slightly shorter product variant, minimizing downtime.
Assembly Positioning
Use the 1559N push force to drive presses or indexing pins, relying on the rear screw to set the exact retraction endpoint.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X85-10S the Right Cylinder?
Choose this 63mm bore when you need higher force than the 50mm class (which provides 982N push at 0.5 MPa) but want to avoid the bulk of an 80mm model. The adjustable stroke is perfect for setups requiring a variable end-stop to dial in the exact 75-85mm travel distance. Unlike a fixed-stroke SAI cylinder, this model allows non-destructive fine-tuning at commissioning. For load-holding without live air pressure, note that the rear adjuster is only a travel stop, not a lock; consider an SAIL or BSAI cylinder for those safety requirements.
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 SAIJ63X85-10S FAQ
An external stopper screw at the rear acts on the retract end. You can adjust the nominal 85mm stroke back by up to 10mm, creating a usable travel window of 75-85mm to fine-tune the end position without replacing the cylinder.
At 0.5 MPa operating pressure, it provides 1559N of push force and 1402N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 318 kgf.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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