Airtac SAIJ50 Adjustable Cylinder SAIJ50BX140-10
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX140-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 140mm 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
- Stroke140 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 SAIJ50BX140-10
The AirTAC SAIJ50X140-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position. With a 140mm nominal stroke and a 10mm adjustment range, it provides a usable travel window of 130-140mm for precise commissioning without adding external stops. It delivers 982N of push force and 825N of pull force at 0.5MPa.
This variant uses a SUS304 stainless steel piston rod for corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. The rear adjuster acts strictly as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX140-10 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX140-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 140 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 SAIJ50BX140-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×140 | 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 SAIJ50BX140-10 Is Used
Machine Setup Tuning
Dial in the exact 130-140mm travel during commissioning to perfect end-position alignment without swapping out the entire cylinder.
Product Changeover
Quickly adjust the rear stopper to accommodate slightly different product sizes on the same production line.
Variable End Stops
Use the fine-tuning screw to set precise deceleration points for specialized manufacturing tasks.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX140-10 the Right Cylinder?
Choose this 50mm bore when your application requires the 982N thrust at 0.5MPa, stepping up from a 40mm bore that provides 628N. An adjustable stroke is ideal for machine setups requiring variable end-stops during product changeovers, rather than relying on a fixed-stroke SAI cylinder. Mounting options include the reduced SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. For load-holding without live pressure, consider an external rod lock or the SAIL cylinder series.
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 SAIJ50BX140-10 FAQ
At 0.5MPa operating pressure, this 50mm bore cylinder provides a push force of 982N and a pull force of 825N. It can reach a maximum push force of 1767N at 0.9MPa.
The rear adjuster screw allows you to shorten the 140mm nominal stroke by up to 10mm, giving a usable travel window of 130-140mm. This stopper sets the travel end and deceleration but does not lock the load without live air.
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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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