Airtac SAIJ50 Adjustable Cylinder SAIJ50AX700-20
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX700-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 700mm 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
- Stroke700 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 SAIJ50AX700-20
The AirTAC SAIJ50X700-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 680 to 700 mm usable travel window, allowing you to dial back the stroke by up to 20 mm during commissioning. With a 50 mm bore, it delivers 982 N of push thrust at 0.5 MPa and uses a G1/4 port for pneumatic supply.
This unit is built with a SUS420J2 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, although this specific SKU is non-magnetic and does not support reed or electronic switches. The rear adjuster acts purely as a travel stop to set end positions and is not a lock, meaning live air is required to hold the load.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX700-20 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX700-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 700 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 SAIJ50AX700-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×700 | 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 SAIJ50AX700-20 Is Used
Machine Changeover
Fine-tune the 680-700 mm travel window during product size transitions without replacing the cylinder or adding external physical stops.
Variable End Stops
Dial in the exact retraction point for diverter arms on a conveyor line, compensating for mechanical drift over time.
Setup Calibration
Precisely set the end-of-stroke position during initial machine commissioning to prevent crashes and optimize cycle timing.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX700-20 the Right Cylinder?
Choose this adjustable model over a fixed SAI cylinder when your application requires variable end-stops or fine-tuning during machine changeover without swapping hardware. If you need less force, stepping down to a 40 mm bore yields 628 N at 0.5 MPa, while an 80 mm bore provides 2513 N for heavier loads. Because the 700 mm stroke is long, an external guide is recommended to prevent excessive side-loading on the 16 mm rod.
This cylinder is dimensionally interchangeable per ISO 15552 standards. To match this exact configuration, specify a 50 mm bore, 700 mm nominal stroke, 20 mm adjustment range, PT ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and no magnet. For applications requiring true load-holding without live air pressure, consider the SAIL or BSAI series instead of relying on the rear stopper.
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 SAIJ50AX700-20 FAQ
At 0.5 MPa operating pressure, the 50 mm bore provides 982 N of push thrust and 825 N of pull thrust. At the maximum 1.0 MPa pressure, it generates up to 200 kgf of push force.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from 700 mm down to 680 mm. It only sets the end position and decelerates the load; it does not lock or hold the cylinder position without live air pressure.
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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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