Airtac SAIJ50 Adjustable Cylinder SAIJ50BX290-10S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX290-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 290mm 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
- Stroke290 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 SAIJ50BX290-10S
The AirTAC SAIJ50X290-10-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 280-290 mm, allowing you to dial in the retract end-position precisely during commissioning. Delivering 982 N of push force at 0.5 MPa (and up to 1767 N at 0.9 MPa), it handles mid-range actuation tasks with ease.
This variant includes a SUS304 stainless steel rod (option B) for superior corrosion resistance and a magnetic piston for position sensing. The extruded aluminum barrel integrates dual sensor grooves compatible with CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a travel stop to fine-tune deceleration, not as a lock.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX290-10S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX290-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 290 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 SAIJ50BX290-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×290 | 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 SAIJ50BX290-10S Is Used
Product Changeover
Quickly adjust the 280-290 mm travel window to accommodate slightly different product lengths on the same conveyor line without changing cylinders.
End-Stop Calibration
Fine-tune the retract position during machine setup to ensure precise mechanical alignment without fabricating custom external spacers.
Test Fixture Positioning
Dial in the exact 10 mm adjustment range for laboratory or testing equipment where stroke endpoints must be micro-adjusted between runs.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX290-10S the Right Cylinder?
Select this 50 mm bore cylinder when you need 982 N of thrust at 0.5 MPa but require exact end-position tuning without adding external stops. If your application needs less force, the 40 mm bore offers 628 N; for heavier loads, the 63 mm bore provides 1559 N. The adjustable rear screw is perfect for product changeovers on a shared machine base.
Because the 290 mm stroke is over 300 mm when fully extended, ensure you use an external guide to prevent excessive side-loading on the M16x1.5 rod thread. This cylinder uses PT tapered ports and supports SAIJ mounting options Basic, FA, LB, TC, FTC, TCM1, and TCM2. For applications requiring load-holding without live air pressure, consider the SAIL or BSAI series 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 SAIJ50 Adjustable Cylinder SAIJ50BX290-10S FAQ
The rear adjuster allows you to shorten the nominal 290 mm stroke by up to 10 mm, creating a 280-290 mm usable travel window. It functions as a mechanical stop to fine-tune the end position and deceleration, but it does not lock or hold the load without continuous air pressure.
At 0.5 MPa, the SAIJ50X290-10-S provides 982 N of push force and 825 N of pull force. At 0.9 MPa, the push force increases to 1767 N.
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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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