Airtac SAIJ50 Adjustable Cylinder SAIJ50BX220-100
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX220-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 220mm 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
- Stroke220 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 SAIJ50BX220-100
The AirTAC SAIJ50X220-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 220 mm travel by up to 100 mm. This creates a highly flexible 120-220 mm usable window, letting you fine-tune the retract end-position at commissioning without swapping the barrel or bolting on external stops. Built with a SUS304 stainless steel rod, it handles demanding environments while delivering 982 N of push force at 0.5 MPa.
The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches, though this specific SKU ships without a magnet. It features PT tapered port threads and variable air cushions at both ends to manage deceleration. Remember that the rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX220-100 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX220-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 220 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 SAIJ50BX220-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×220 | 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 SAIJ50BX220-100 Is Used
Machine Changeover
Rapidly adjust the 120-220 mm travel window during product size changes without replacing the cylinder or adding external stopper blocks.
Commissioning Calibration
Fine-tune the exact retract end-position during setup to perfect timing and avoid mechanical crashes on the line.
Variable End-Stop Positioning
Dial in the precise stroke length needed for delicate operations, using the rear screw to set a hard physical limit for the workpiece.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX220-100 the Right Cylinder?
Choose this 50 mm bore when your application requires around 982 N of thrust at 0.5 MPa. If your project demands less force, stepping down to a 40 mm bore yields 628 N, whereas moving up to a 63 mm bore provides 1559 N. The 100 mm adjustment range is particularly useful for machines processing varying product sizes, allowing rapid changeover simply by turning the rear screw rather than re-engineering the fixture.
To replace an existing cylinder per ISO 15552 mounting interfaces, match the 50 mm bore, 220 mm stroke, PT G1/4 port, and the desired mounting accessory from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 220 mm stroke is relatively long, ensure you provide an external guide to support the rod and prevent excessive side-loading, which the adjuster cannot compensate for.
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 SAIJ50BX220-100 FAQ
At a 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 200 kgf.
The rear adjuster screw lets you shorten the 220 mm nominal stroke by up to 100 mm, providing a usable travel window of 120-220 mm. This stopper only sets the end-position; it does not lock or hold the load without continuous air pressure.
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