Airtac SAIJ50 Adjustable Cylinder SAIJ50X200-50S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50X200-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 200mm 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
- Stroke200 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 SAIJ50X200-50S
The AirTAC SAIJ50X200-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a 982N push force at 0.5 MPa and features a built-in magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
With a nominal 200mm stroke and a 50mm adjustment code, this unit provides a usable travel window of 150-200mm. You can fine-tune the retract end position at commissioning without adding external stops. The carbon steel rod and M16x1.5 thread handle moderate side loads, while the PT tapered port ensures a tight pneumatic connection.
Airtac SAIJ50 Adjustable Cylinder SAIJ50X200-50S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50X200-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 200 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 SAIJ50X200-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×200 | 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 SAIJ50X200-50S Is Used
Variable End-Stop Setup
Dial in the exact retract position from 150 to 200mm during machine commissioning without swapping cylinders or adding external mechanical stops.
Product Changeover
Quickly adapt the stroke window for different package sizes on a packaging line, using the 50mm rear screw to shift the end position.
Sensor-Ready Actuation
Leverage the built-in magnet and dual sensor grooves to mount CMSE or DMSE switches for precise position feedback alongside the tuned stroke.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50X200-50S the Right Cylinder?
Choose this 50mm bore when your application requires more force than the 40mm bore (628N at 0.5 MPa) but does not need the bulk of the 63mm class (1559N). The 50mm adjustment range is ideal for product-size changeovers on a conveyor, letting you dial in the exact end-stop mechanically. Because the 200mm stroke is under the 300mm side-load threshold, a standard guide is usually sufficient.
For an exact ISO 15552 replacement, match the 50mm bore, 200mm stroke, 50mm adjustment, PT port thread, and the -S magnet option. Remember that the rear adjuster is a travel stop, not a lock; the SAIJ50X200-50-S will not hold a load without live air. For true load-holding, consider the SAIL or BSAI series. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ50X200-50S FAQ
At 0.5 MPa, this 50mm bore cylinder provides a push force of 982N and a pull force of 825N. At 0.7 MPa, the push force increases to 1374N.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back from the 200mm nominal stroke, providing a usable window of 150-200mm. It is a stop, not a lock, so the cylinder still requires live air to hold position.
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