Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 260mm 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
- Stroke260 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-50S
The AirTAC SAIJ63X260-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 210 to 260 mm, allowing you to dial back the nominal 260 mm stroke by up to 50 mm during commissioning. Equipped with a SUS420J2 stainless steel rod and a position magnet, it generates 1559 N of push force at 0.5 MPa.
This adjustable design eliminates the need to swap cylinders or bolt on external stops when fine-tuning end positions. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 260 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 SAIJ63AX260-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×260 | 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 SAIJ63AX260-50S Is Used
Product Changeover
Dial in the exact end position from 210 to 260 mm when switching product sizes on a packaging line, avoiding mechanical rebuilds.
Machine Setup
Fine-tune the retract stop during commissioning to perfect the seating force of 1559 N without adding external stopper blocks.
Sensor Integration
Leverage the built-in magnet with DMSE solid-state sensors to confirm the adjusted end-of-travel position in automated assemblies.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX260-50S the Right Cylinder?
Choose this 63 mm bore when you need 1559 N of thrust at 0.5 MPa, stepping up from the 50 mm bore which provides 982 N. The 50 mm adjustment range is ideal for machines handling frequent product-size changeovers, whereas a fixed SAI cylinder is better for rigid, single-purpose travel. To replace this unit, match the 63 mm bore, 260 mm stroke, PT tapered port threads, and the -S magnet option.
Mounting options include the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 260 mm stroke is substantial, always use an external guide to support the rod and prevent excessive side-loading. For load-holding without live air, select a SAIL or BSAI cylinder instead.
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 SAIJ63AX260-50S FAQ
A rear stopper screw lets you shorten the effective travel from 260 mm down to a minimum of 210 mm, giving a 50 mm tuning window. This stopper sets the end position but does not lock the load without live air pressure.
At 0.5 MPa operating pressure, it provides 1559 N of push force and 1402 N of pull force. The maximum thrust is 318 kgf at 1.0 MPa.
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