Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-20S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 180mm 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
- Stroke180 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 SAIJ50BX180-20S
The AirTAC SAIJ50X180-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 160-180 mm usable travel window, letting you dial back the 180 mm nominal stroke by up to 20 mm during commissioning. Delivering 982 N of push force at 0.5 MPa, it fits medium-duty tasks perfectly.
This variant features a SUS304 stainless steel rod (option B) for superior corrosion resistance and uses PT tapered port threading. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet supports CMSE reed and DMSE electronic sensors for precise position feedback.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-20S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 180 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 SAIJ50BX180-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×180 | 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 SAIJ50BX180-20S Is Used
Product Changeover Adjustment
Dial in the exact end-position during machine setup for new product sizes, trimming the stroke within the 160-180 mm window without adding external stopper blocks.
Corrosive Clamping Operations
Leverage the 982 N push force and SUS304 stainless steel rod for reliable clamping in environments where standard carbon steel rods would rust.
Automated Assembly Stops
Fine-tune the travel end on automated assembly lines, using the DMSE electronic sensors to confirm the adjusted end-position for precise component placement.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-20S the Right Cylinder?
Choose this 50 mm bore when an application requires 982 N of push force at 0.5 MPa, stepping up from a 40 mm bore (628 N) for heavier clamping or stepping down from a 63 mm bore (1559 N) to save space. The 20 mm rear adjuster is selected over a fixed SAI cylinder when you need variable end-stops for product changeovers without swapping components. Because the stroke is 180 mm, side-load risks are manageable, but an external guide is recommended for heavy lateral loads. For load-holding without live air pressure, use an SAIL or BSAI cylinder, as this adjuster is a stop, not a lock. To match this ISO 15552 replacement exactly, verify the 180 mm stroke, 20 mm adjustment, PT G1/4 port, 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 SAIJ50 Adjustable Cylinder SAIJ50BX180-20S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. It can reach up to 1767 N push force at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 180 mm nominal stroke by up to 20 mm, creating a 160-180 mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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