Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-40S 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 SAIJ63AX190-40S
The AirTAC SAIJ63X190-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 150 to 190 mm, letting you dial back the nominal 190 mm stroke by up to 40 mm during machine commissioning. This bore delivers 2182 N of push force at 0.7 MPa, fitting firmly into the mid-range thrust class for automated handling.
This specific SKU features a SUS420J2 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides. It uses a PT G3/8 port and omits the FB, CA, CB, and CR mounting interfaces, supporting only the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-40S |
|---|---|
| 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 SAIJ63AX190-40S
| 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 SAIJ63AX190-40S Is Used
Product Changeover Calibration
Dial in the exact 150 to 190 mm end-position instantly when switching between product sizes on a packaging line, eliminating the need for mechanical spacer swaps.
End-Stop Trimming
Fine-tune the retract stroke by up to 40 mm during machine setup to compensate for mechanical wear or sensor drift without replacing the cylinder.
Mid-Force Positioning
Leverage the 2182 N push force at 0.7 MPa to shift medium-weight pallets or actuators, using the rear screw to softly decelerate the load at the end of travel.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX190-40S the Right Cylinder?
Choose this 63 mm bore when a 40 mm adjustment window is required to perfect a variable end-stop on the fly, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If your application requires less force, stepping down to a 50 mm bore yields 1374 N of push at 0.5 MPa; if you need more power, an 80 mm bore provides 3518 N at 0.7 MPa. Because the 190 mm stroke is under the 300 mm threshold, side-load stress is moderate, but an external guide is still recommended for heavy lateral loads.
Remember that the rear adjuster acts purely as a travel stop and cannot hold a load without live air pressure. For drop-prevention or dead-pole holding, you must integrate an external pilot-operated check valve, or switch to the SAIL pneumatic lock or BSAI clamp-lock cylinder variants. To match this ISO 15552 replacement exactly, specify the 63 mm bore, 190 mm stroke, 40 mm adjuster, PT G3/8 port, SUS420J2 rod, and the -S magnet.
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 SAIJ63AX190-40S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm, creating a usable travel window of 150 to 190 mm. The adjuster acts as a mechanical stop to set the retract end-position, but it is not a lock and cannot hold the load without continuous air pressure.
At a 0.7 MPa operating pressure, this double-acting cylinder generates 2182 N of push force and 1402 N of pull force. It can deliver up to 318 kgf at its maximum 1.0 MPa pressure rating.
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