Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 160mm 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
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-50S
The AirTAC SAIJ63X160-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This specific SKU provides a usable stroke window of 110 to 160 mm, enabling precise end-position tuning at commissioning without swapping out the barrel or adding external stops. It delivers a robust 1402 N pull force at 0.5 MPa, making it well-suited for moderate to heavy actuation tasks.
This variant is configured with an SUS420J2 stainless steel rod (code A) for improved corrosion resistance, PT tapered port threads, and an integrated magnet (-S) for position sensing. The sensor groove on both sides of the extruded aluminum barrel accommodates AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop to set the retract end position; it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 160 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 SAIJ63AX160-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×160 | 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 SAIJ63AX160-50S Is Used
Product Changeover Adjustment
Dial in the retract stroke by up to 50 mm when switching a packaging line to a different carton size, avoiding the need to physically swap cylinders or reposition hard stops.
End-Position Calibration
Fine-tune the exact end-of-stroke position during machine commissioning to ensure precise pressing or clamping forces without machining custom spacer blocks.
Variable Assembly Stops
Accommodate multiple part heights on a single fixture by adjusting the rear stopper screw to set the perfect travel distance for each specific assembly run.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX160-50S the Right Cylinder?
Choose this 63 mm bore model when your application requires 1402 N of pull force at 0.5 MPa and you need to dial in a specific travel distance within the 110 to 160 mm window during machine setup or product changeover. If your process demands less force, stepping down to a 50 mm bore yields 825 N of pull force, while stepping up to an 80 mm bore provides 2268 N. The adjustable rear stopper saves time during commissioning compared to a fixed-stroke SAI cylinder, but note that a plain SAIJ does not hold its position or load without live air—if load-holding is required, consider the SAIL or BSAI series instead.
To match this ISO 15552 replacement exactly, ensure your footprint requires a 63 mm bore, 160 mm nominal stroke, G3/8 PT ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 160 mm stroke is below the 300 mm threshold, side-load stress on the 20 mm rod and M16x1.25 thread is manageable without an external guide, though unsupported long strokes still require one.
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 SAIJ63AX160-50S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 160 mm stroke by up to 50 mm, providing a usable travel window of 110 to 160 mm. The adjuster and the variable air cushions only set and decelerate the travel end; they do not lock or hold the load without live air pressure.
At an operating pressure of 0.5 MPa, the SAIJ63X160-50-S delivers 1559 N of push force and 1402 N of pull force. The maximum thrust at 1.0 MPa is 318 kgf.
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