Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X300-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 300mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 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 SAIJ200 Adjustable Cylinder SAIJ200X300-50S
The AirTAC SAIJ200X300-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The built-in rear stopper allows you to fine-tune the end-of-stroke position at commissioning without bolting on external stops or swapping the cylinder.
This specific SKU provides a 250-300 mm usable travel window by trimming up to 50 mm from the 300 mm nominal stroke. It features a carbon steel rod, a PT tapered G3/4 port, and an -S magnet for use with AirTAC CMSE reed and DMSE solid-state sensors. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×300 | 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 SAIJ200 Adjustable Cylinder SAIJ200X300-50S Is Used
Heavy Press Tuning
Dial in the exact 250-300 mm end-stop position for large forming presses or heavy assembly jigs during initial machine commissioning.
Product Changeover
Quickly adjust the effective stroke by up to 50 mm on a packaging line when switching to a different pallet or product size.
Guided Load Handling
Move massive 15080N payloads along an external guide rail, using the rear stopper to set precise retraction limits without external hard stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-50S the Right Cylinder?
Choose this 200 mm bore actuator when your application requires extreme force and precise end-position tuning, such as setting variable end stops during heavy product changeovers. If you need less force, stepping down to a 160 mm bore yields 9425N pull at 0.5 MPa, but the 200 mm bore is necessary for loads approaching 3204 kgf at 1.0 MPa. Because the 300 mm stroke is substantial and the 40 mm rod is heavy, you must use an external guide to prevent excessive side-loading on the rod and rod thread.
Remember that the rear adjuster acts only as a travel stop and the air cushions manage deceleration; neither holds the load without live air pressure. For true load-holding without continuous air, select the SAIL (air-released lock) or BSAI (clamp-lock) variants. To replace an ISO 15552 cylinder, match the 200 mm bore, 300 mm stroke, 50 mm adjustment, G3/4 PT port, and the -S magnet, noting that SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts (omitting FB, CA, CB, and CR).
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 SAIJ200 Adjustable Cylinder SAIJ200X300-50S FAQ
At its maximum 1.0 MPa operating pressure, it can deliver up to 3204 kgf.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the 300 mm nominal stroke by up to 50 mm. This creates a 250-300 mm usable travel window for fine-tuning end positions without replacing the cylinder.
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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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