
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X650-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 650mm 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 SAIJ200X650-20 is a double-acting ISO 15552 profile cylinder featuring an integrated rear stroke adjuster. It delivers massive thrust, pushing 28274N at 0.9 MPa, making it suitable for heavy-duty operations. By turning the external rear stopper, you can fine-tune the effective travel down to a 630-650 mm window without swapping out the unit.
This model features a robust 40 mm carbon steel rod and a G3/4 port. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. It utilizes a reduced mounting interface subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR brackets found on some standard variants.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X650-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 650 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. |
| ×650 | 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 630-650 mm travel window during heavy press commissioning to accommodate material thickness variations without adding external physical stops.
Quickly modify the retract end-position by up to 20 mm when switching a production line to handle different sized pallets or products.
The adjustable stroke is ideal for machine setup and product changeovers, allowing you to set a precise variable end-stop at commissioning rather than relying on a fixed-stroke SAI cylinder.
Because the 650 mm stroke creates a long lever arm, an external guide is recommended to prevent excessive side-loading on the 40 mm rod. Remember that the rear adjuster acts only as a travel stop and the air cushions provide deceleration; neither will hold the load without live air pressure. For true load-holding, consider an external rod lock or the SAIL pneumatic-lock series.
Quick checklist
The external rear stopper allows you to shorten the nominal 650 mm stroke by up to 20 mm, providing an effective adjustable travel window of 630-650 mm for precise end-position tuning.
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.