Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-40S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X800-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 800mm 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
- Stroke800 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 SAIJ200X800-40S
The AirTAC SAIJ200X800-40-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing 15708N at 0.5MPa and reaching 28274N at 0.9MPa. An integrated magnet allows position sensing via CMSE reed or DMSE electronic switches. By turning the rear stopper screw, you can trim the effective travel within a 760-800mm window, providing precise end-position tuning during commissioning.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops when fine-tuning machine setup. The extruded aluminum barrel features sensor grooves on both sides, and the carbon steel rod with an M36x2 thread provides a robust interface for heavy loads. It uses PT tapered port threads (G3/4) and includes variable air cushions at both ends to decelerate the moving mass smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAIJ200X800-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SAIJ200X800-40S Is Used
Heavy Press Tuning
Fine-tune the 760-800mm end position on large stamping or press equipment during commissioning to accommodate different die heights.
Pallet Changeover
Adjust the rear stopper screw to modify the travel window for varying pallet sizes on a heavy-duty transfer line without changing the cylinder.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-40S the Right Cylinder?
The 40mm adjustment range is ideal for product changeovers on large machinery, letting you dial in the exact 760-800mm travel without mechanical modifications. When replacing an ISO 15552 cylinder, verify the 800mm stroke, 40mm adjuster, G3/4 PT ports, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
Because the 800mm stroke is long and unsupported, an external guide is strongly recommended to prevent excessive side-loading on the M36x2 rod. Note that the rear adjuster acts only as a travel stop and the air cushions handle deceleration; neither will hold the load without live air. For load-holding requirements without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ200X800-40S FAQ
At 0.9MPa, the push force increases to 28274N.
The rear adjuster screw allows you to shorten the 800mm nominal stroke by up to 40mm, creating a usable travel window of 760-800mm. The adjuster is a mechanical stop, not a lock, so it only sets the end position.
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