Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 115mm 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
- Stroke115 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-100
The AirTAC SAIJ63X115-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 1559 Newtons of pull force at 0.5 MPa and utilizes a G3/8 port. The built-in adjustment mechanism allows you to trim the nominal 115 mm stroke back by up to 100 mm, creating a highly flexible 15 to 115 mm usable travel window for precise end-position tuning during commissioning.
This variant features an SUS420J2 stainless steel piston rod (code A) for enhanced corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic solid-state switches. The rear adjuster functions strictly as a travel stop to set deceleration and end limits, not as a locking device, meaning the cylinder cannot hold a load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 115 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 SAIJ63AX115-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×115 | 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 SAIJ63AX115-100 Is Used
Product Changeover
Dial in the 15-115 mm travel window on packaging lines handling varying container sizes without physically replacing the actuator.
End-Stop Tuning
Fine-tune the final retract position during machine commissioning to perfect pressing or clamping depth.
Adjustable Ejection
Vary the ejection stroke length on assembly lines to safely clear different part profiles on the fly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-100 the Right Cylinder?
Choose this 63 mm bore when an application requires around 1559 N of pull force at 0.5 MPa, stepping up from a 50 mm bore that provides 825 N, or down from an 80 mm bore that yields 2268 N. The massive 100 mm adjustment range is selected over a fixed-stroke SAI cylinder when a machine handles frequent product size changeovers, allowing operators to dial in the exact travel distance without swapping hardware or adding external stops. For load-holding requirements without continuous air pressure, this cylinder is insufficient; consider an SAIL pneumatic lock, a BSAI clamp-lock, or an external pilot-operated check valve. To replace an ISO 15552 cylinder, match the 63 mm bore, 115 mm stroke, 100 mm adjustment, PT tapered port threads, and the desired mounting accessory from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ63AX115-100 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 Newtons of pull force and 2182 Newtons of push force. It can deliver a maximum push force of 2805 Newtons at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the nominal 115 mm down to as little as 15 mm. It sets the end position and deceleration point but does not lock the load without live air pressure.
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