
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X800-40 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.
The AirTAC SAIJ200X800-40 is a double-acting ISO 15552 profile cylinder featuring a robust 200mm bore and an 800mm stroke. A rear mechanical adjuster allows you to trim the effective travel back by up to 40mm, creating a precise 760-800mm usable window for dialing in end positions without swapping hardware. It delivers substantial thrust, pushing 15708N and pulling 15080N at 0.5 MPa.
This heavy-duty actuator uses a 40mm carbon steel rod with an M36x2 thread, providing excellent rigidity against side loads, though an 800mm span still requires an external guide. It features a G3/4 PT tapered port, 50mm cushions at both ends, and operates at 30-500 mm/s. The extruded aluminum barrel includes dual sensor grooves, and the mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X800-40 |
|---|---|
| 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.
| 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.
| 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.
Dial in the exact 760-800mm end position during product size changes without replacing the cylinder or adding external stopper blocks.
Handles 800mm of travel for heavy payloads, relying on the 40mm carbon steel rod while an external guide manages the long lever arm.
The adjustable stroke is chosen over a fixed SAI cylinder when you need on-machine fine-tuning during product changeovers or commissioning. To match this ISO 15552 footprint, specify the 200mm bore, 800mm stroke, 40mm adjustment, G3/4 PT port, and the required mounting accessory.
Because the stroke is 800mm, you must use an external guide to prevent rod bending and premature seal wear. The rear stopper and air cushions only decelerate the load; they do not hold it without live air. For true load-holding without pressure, use an SAIL air-released lock, a BSAI clamp-lock, or an external rod lock.
Quick checklist
The maximum operating speed for this 200mm bore is 30-500 mm/s.
A rear screw stopper lets you shorten the 800mm nominal stroke by up to 40mm, giving a usable travel window of 760-800mm for fine-tuning the retract end position during setup.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.