Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-40S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X375-40S 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 SAIJ200X375-40S
The AirTAC SAIJ200X375-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. By turning the rear stopper screw, you can fine-tune the effective travel window down from the 375mm nominal stroke to 335mm, allowing precise end-position calibration during commissioning without swapping hardware.
This 200mm bore unit features PT tapered port threads (G3/4) and includes a magnet (-S) for electronic DMSE or reed CMSE sensors housed in the dual-side barrel grooves. The adjustable stopper acts solely as a travel deceleration boundary; it is not a lock and cannot hold the load without live air pressure. For applications requiring true load-holding without continuous pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-40S |
|---|---|
| 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 SAIJ200X375-40S
| 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 SAIJ200X375-40S Is Used
Heavy Press-Fit Tuning
Dial in the exact 335-375mm end-stop for heavy-duty press fits, allowing precise depth control during initial machine setup without physically swapping out the large-bore cylinder.
Product Size Changeover
Quickly adapt a conveyor diverting or sorting station to handle different package lengths by adjusting the rear stopper screw to shift the 375mm nominal stroke window.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X375-40S the Right Cylinder?
The 40mm adjustment range is ideal for product-size changeovers on a line, letting you dial in the exact 335 to 375mm travel limit on the fly instead of machining external stops.
Because the 375mm stroke is substantial, the heavy 40mm rod handles significant side loads, but an external guide rail is still recommended to prevent binding over long unsupported travel. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. To replace an ISO 15552 cylinder, match the 200mm bore, 375mm stroke, 40mm adjust, PT G3/4 port, and -S magnet.
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 SAIJ200X375-40S FAQ
It features a G3/4 PT tapered port, an M36x2 rod thread, and operates at speeds of 30-500 mm/s.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 375mm nominal stroke down to 335mm, creating a 40mm adjustable window. This stopper only sets the travel end and deceleration; it does not lock or hold the load without continuous air pressure.
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