Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 190mm 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
- Stroke190 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20
The AirTAC SAIJ63X190-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 170-190 mm usable travel window by allowing you to dial back the 190 mm nominal stroke by up to 20 mm. In the 63 mm bore class, it delivers a 1559 N push force at 0.5 MPa, making it suitable for medium-duty industrial handling.
This variant uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. The rear adjuster acts purely as a mechanical stop to set the retract end position during commissioning; it does not lock or hold the load without live air pressure. For position holding, an external rod lock or related SAIL series is required.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 190 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 SAIJ63AX190-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×190 | 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 SAIJ63AX190-20 Is Used
Machine Changeover
Fine-tune the 170-190 mm retract end-stop during product size transitions without bolting on external stops or changing the cylinder.
Commissioning Calibration
Dial in the exact end position during initial setup to perfect the mechanical timing of your 63 mm bore assembly.
Assembly Line Indexing
Provides 1559 N of push force at 0.5 MPa for moving moderate workloads, with a built-in travel limiter for process refinement.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-20 the Right Cylinder?
Choose this 63 mm bore when you need 1559 N of push force at 0.5 MPa, stepping up from the 50 mm bore which provides 982 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, removing the need to swap out a fixed-stroke SAI cylinder. To match an ISO 15552 replacement, verify the 190 mm stroke, 20 mm adjustment range, PT tapered port threads, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interface. Note that this unit lacks a magnet, so CMSE and DMSE sensors cannot be used for position detection.
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 SAIJ63AX190-20 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. It can reach up to 2805 N push force at its maximum 0.9 MPa pressure.
The rear adjuster screw lets you shorten the 190 mm nominal stroke by up to 20 mm, creating a 170-190 mm usable travel window. It functions as a mechanical stop for end-position tuning and requires live air to hold the load.
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