Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX155-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX155-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX155-10S
The AirTAC SAIJ63X155-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 145-155 mm for precise end-position tuning. Fitted with a G3/8 PT port and a 20 mm rod, it delivers a pull force of 1402 N and a push force of 1559 N at 0.5 MPa. This bore size is a workhorse for mid-range actuation, operating efficiently at speeds between 30-800 mm/s.
This variant includes a magnetic piston (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, and uses an SUS420J2 stainless steel rod (code A) for improved corrosion resistance. The extruded aluminum barrel features sensor grooves on both sides, and the rear stopper allows you to dial in the stroke at commissioning without adding external stops. The adjuster acts purely as a travel stop and does not hold the load without live air.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX155-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX155-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 155 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 SAIJ63AX155-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×155 | 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 SAIJ63AX155-10S Is Used
Machine Setup Fine-Tuning
Dial in the exact 145-155 mm end-stop during commissioning to perfect part seating without machining custom spacers.
Product Changeover
Quickly adjust the rear stopper by up to 10 mm on packaging lines when switching between slightly different product sizes.
Mid-Range Assembly Pressing
Leverage the 1559 N push force at 0.5 MPa for controlled pressing tasks, using the magnetic piston for position confirmation.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX155-10S the Right Cylinder?
Choose this 63 mm bore when you need more thrust than a 50 mm cylinder (which provides 825 N pull at 0.5 MPa) but want a smaller footprint than an 80 mm option. The 10 mm adjustment range is ideal for applications requiring minor fine-tuning during machine setup or product changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. If your process requires the load to be held mechanically without continuous air pressure, you would need to step up to a SAIL locking cylinder or an external rod lock, as the SAIJ adjuster is not a brake.
For an exact ISO 15552 replacement, match the 63 mm bore, 155 mm nominal stroke, 10 mm adjustment range, G3/8 PT port, and the -S magnet requirement. Standard mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because this is a profile cylinder rather than a tie-rod design, it integrates cleanly into modern assemblies without exposing tie-rod nuts.
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 SAIJ63AX155-10S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder generates a push force of 1559 N and a pull force of 1402 N. At the maximum 1.0 MPa pressure, it can achieve a push force of up to 3118 N.
The rear adjuster screw allows you to shorten the effective stroke from the nominal 155 mm down to 145 mm. This provides a 145-155 mm travel window for fine-tuning the end position at commissioning, but it acts only as a stop and does not lock the load without live air.
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