Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 65mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke65 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30
The AirTAC SAIJ50X65-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits up to 30 mm of end-position trimming. This yields a usable travel window of 35 to 65 mm, allowing precise mechanical tuning at commissioning without external stops. The 50 mm bore delivers 982 N of push force at 0.5 MPa, scaling to 1767 N at 0.9 MPa, making it suitable for moderate-load positioning tasks.
This variant incorporates a SUS304 stainless steel rod for enhanced corrosion resistance and features tapered PT ports. It carries the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) but omits FB, CA, CB, and CR options. The extruded aluminum barrel includes dual-side sensor grooves for tracking position, though a magnet is not specified for this configuration.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×65 | 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 SAIJ50 Adjustable Cylinder SAIJ50BX65-30 Is Used
Machine Changeover
Dial in the 35 to 65 mm travel window during product size changes without swapping the cylinder or adding external stopper blocks.
End-Stop Tuning
Fine-tune the retract position at commissioning to absorb minor mechanical tolerances in the machine frame.
Moderate Load Positioning
Leverage the 982 N push force at 0.5 MPa to push or lift fixtures, relying on the rear screw to set the exact resting position.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30 the Right Cylinder?
Choose this 50 mm bore when an application requires 982 N of thrust at 0.5 MPa but does not justify stepping up to the 63 mm bore, which provides 1559 N. The 30 mm adjustment range is ideal for product changeovers where the exact end-of-stroke varies slightly, replacing the need to swap a fixed SAI cylinder. Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 50 mm bore, 65 mm nominal stroke, 30 mm adjustment, PT port thread, and the specified mounting interface. Because the stroke is under 300 mm, side-load stress on the 20 mm rod is minimal, though external guiding remains recommended for optimal cylinder longevity.
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 SAIJ50 Adjustable Cylinder SAIJ50BX65-30 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.9 MPa, the push force increases to 1767 N.
The rear adjuster screw lets you shorten the 65 mm nominal stroke by up to 30 mm, creating a usable travel window of 35 to 65 mm. It acts as a mechanical stop and does not lock the load without live air pressure.
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