Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X270-40 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 SAIJ200X270-40
The AirTAC SAIJ200X270-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 28274N at 0.9 MPa. It features a robust 40mm carbon steel piston rod and a G3/4 PT tapered port to handle high-flow pneumatic demands. By integrating an external stopper, this model allows you to fine-tune the effective travel down from the 270mm nominal stroke, creating a precise 230-270mm usable window without swapping out the barrel.
This adjuster acts purely as a travel stop for commissioning and product changeovers, not as a load-holding lock. The extruded aluminum profile includes sensor grooves on both sides for CMSE reed or DMSE electronic switches. For applications requiring position holding without live air pressure, an external rod lock or related series like SAIL or BSAI would be required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40 |
|---|---|
| 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 SAIJ200X270-40
| 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 SAIJ200X270-40 Is Used
Heavy Press End-Stop Tuning
Dial in the exact 230-270mm retraction point on large metal-forming presses during tooling changes, using the rear screw to set the precise bottom-dead-center without external shims.
Heavy-Duty Machine Setup
Fine-tune the travel end-position during initial commissioning of automated heavy machinery, relying on the external stopper to trim the 270mm stroke exactly to the fixture.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40 the Right Cylinder?
Choose this 200mm bore cylinder when your application requires extreme push forces—up to 15708N even at a standard 0.5 MPa. If your machinery does not need this maximum capacity, stepping down to a 160mm bore yields 10053N at 0.5 MPa, which might better suit medium-heavy loads while saving physical space. The SAIJ200X270-40 is specifically selected when a fixed-stroke SAI cylinder falls short, as the 40mm rear adjustment screw allows operators to dial in the exact end-position during setup rather than machining external stopper blocks.
When replacing an ISO 15552 cylinder, verify the 200mm bore, 270mm stroke, 40mm adjustment range, G3/4 PT port, and your required mounting interface. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 270mm stroke combined with a 40mm rod diameter can generate leverage under side-loading, ensure you use an external guide to prevent premature seal 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 SAIJ200X270-40 FAQ
The pull force is 15080N at 0.5 MPa and 21991N at 0.9 MPa.
The rear adjuster screw acts as an external stopper, allowing you to shorten the 270mm nominal stroke by up to 40mm. This creates a usable travel window of 230-270mm for fine-tuning the end position without replacing the cylinder.
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