Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-20
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X270-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 270mm 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
- Stroke270 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 SAIJ200X270-20
The AirTAC SAIJ200X270-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 200mm bore and a 270mm nominal stroke that can be mechanically dialed back by up to 20mm, yielding a usable travel window of 250-270mm for precise end-position tuning during commissioning.
The extruded aluminum barrel includes integrated sensor grooves on both sides for flexible mounting of CMSE reed and DMSE electronic switches, though this specific SKU ships without a magnet. A 40mm carbon steel rod with an M36x2 thread provides high rigidity against side loads, while the PT tapered port thread ensures a robust pneumatic connection. The rear adjuster acts strictly as a travel stop to set deceleration endpoints, not as a load-holding lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 270 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 SAIJ200X270-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×270 | 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 SAIJ200X270-20 Is Used
Press Tonnage Calibration
Dial in the exact 250-270mm travel window during heavy press setup to accommodate different die heights without changing the actuator.
Large Pallet Diverter
Adjust the retract stopper by up to 20mm to fine-tune the diverting endpoint for varying pallet widths on a high-capacity line.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-20 the Right Cylinder?
Choose this 200mm bore actuator when an application requires massive thrust—15708N at 0.5MPa or 28274N at 1.0MPa—alongside variable end-stops for product changeovers. If a fixed end-position is sufficient and the extra adjustment mechanism is unnecessary, the standard SAI fixed-stroke cylinder offers a simpler setup. For applications needing true load-holding without continuous air pressure, consider the SAIL pneumatic lock or BSAI clamp-lock cylinders instead of relying on the SAIJ adjuster.
When replacing an ISO 15552 cylinder, match the 200mm bore, 270mm stroke, 20mm adjustment range, PT port thread, and the specific mounting accessory (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Because the 270mm stroke approaches the limits where rod deflection becomes a concern, always use an external guide rail to prevent excessive side-loading on the 40mm carbon steel rod and protect the seals.
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 SAIJ200X270-20 FAQ
At 0.7 MPa, the push force increases to 21991N.
The rear adjuster screw allows you to shorten the 270mm nominal stroke by up to 20mm, creating a 250-270mm usable travel window. This mechanical stop fine-tunes the end position without swapping cylinders, but it does not hold the load without live air pressure.
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