Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-50
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X250-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm 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
- Stroke250 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 SAIJ200X250-50
The AirTAC SAIJ200X250-50 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications. It integrates a rear stopper mechanism that allows you to fine-tune the effective travel down from a 250 mm nominal stroke, providing a usable adjustment window of 200 to 250 mm.
Unlike fixed-stroke actuators, this model permits precise end-position calibration during commissioning without external stops. The extruded aluminum barrel features dual sensor grooves for CMSE reed or DMSE electronic switches, though this specific SKU ships without a magnet. Remember that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for dead-stop holding, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAIJ200X250-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SAIJ200X250-50 Is Used
Heavy Press Changeover
Dial in the 200-250 mm stroke window to accommodate varying material thicknesses on a heavy press line without physically swapping actuators.
Large Fixture Calibration
Fine-tune the retract end-stop during initial machine setup to perfectly align massive 15708 N clamping forces against rigid stops.
Variable Stop Positioning
Adjust the travel end-point on the fly for product-size changes, utilizing the 50 mm trim range to adapt the 250 mm stroke to multiple part geometries.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-50 the Right Cylinder?
The 50 mm adjustment range is highly beneficial for variable product-size changeovers on heavy machinery. For load-holding without continuous air supply, note that this cylinder's adjuster is not a brake; you must integrate an external pilot-operated check valve or select a BSAI clamp-lock cylinder.
When replacing an ISO 15552 actuator, match the 200 mm bore, 250 mm stroke, PT G3/4 port, and 50 mm adjustment range. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2—omitting FB, CA, CB, and CR. Although the 250 mm stroke is under the 300 mm side-load warning threshold, the heavy 40 mm rod and M36x2 thread provide excellent resistance to deflection, though external guides remain recommended for offset loads.
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 SAIJ200X250-50 FAQ
It can reach a maximum of 3204 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective travel back by up to 50 mm, creating a usable stroke window of 200 to 250 mm. This allows precise end-position tuning at commissioning without changing the cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.