Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-50S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X375-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 375mm 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
- Stroke375 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 SAIJ200X375-50S
The AirTAC SAIJ200X375-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. This built-in adjustability allows you to fine-tune the retract end position during commissioning without swapping the cylinder or adding external stops.
Fitted with a PT tapered port and a carbon steel rod, this unit includes a -S magnet for compatibility with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel features sensor grooves on both sides. Remember that the rear adjuster acts only as a travel stop and works alongside the air cushions to decelerate the load; it does not hold the position without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 375 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 SAIJ200X375-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×375 | 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 SAIJ200X375-50S Is Used
Heavy Press Tuning
Dial in the exact 325-375mm end-stop during heavy press commissioning to accommodate material thickness variations without mechanical rework.
Automated Line Changeover
Quickly adjust the retract position on the fly for different product sizes on a high-force assembly line, saving setup time.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-50S the Right Cylinder?
The adjustable 325-375mm window is highly beneficial for heavy machinery setups requiring precise end-position tuning during product changeovers, rather than relying on a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, you must integrate external rod locks or pilot-operated check valves, or select a SAIL or BSAI model, as the SAIJ adjuster is not a brake.
When specifying an exact ISO 15552 replacement match, verify the 200mm bore, 375mm stroke, 50mm adjustment, PT port thread, and the -S magnet. Because the stroke is 375mm, the 40mm rod and M36x2 thread must handle significant side loads; always use an external guide to support long unsupported travel and prevent premature wear.
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 SAIJ200X375-50S FAQ
At the maximum 1.0MPa pressure, it delivers up to 3204 kgf.
It has a 375mm nominal stroke with a 50mm rear adjuster, allowing you to set the effective travel anywhere within a 325-375mm window. The adjustment is made via the rear stopper screw at commissioning.
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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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