
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X500-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 500mm 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 SAIJ200X500-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering immense thrust up to 15708 N at 0.5 MPa and a maximum of 3204 kgf at 1.0 MPa. It features a robust 40 mm carbon steel piston rod and a G3/4 port. By integrating a 50 mm external stopper at the rear, this model provides a usable travel window of 450 to 500 mm, allowing operators to dial in the exact retract position without physically swapping the barrel.
This adjustable-stroke design is tailored for heavy machinery commissioning and product changeover, where fine-tuning the end-of-stroke position saves downtime. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic sensors. It is important to note that the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X500-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 500 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. |
| ×500 | 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 450 to 500 mm retract position on large presses during setup, ensuring precise crushing or forming depths without changing the cylinder.
Adjust the end-stop quickly when switching between product variants on a heavy-duty assembly line, using the 50 mm rear adjuster to accommodate different component sizes.
Choose this 200 mm bore cylinder when your application requires maximum push force that exceeds the 10053 N at 0.5 MPa provided by the smaller 160 mm bore. The 50 mm adjustment window is ideal for variable end-stops on large actuators, eliminating the need to bolt on external stops or replace the entire cylinder when minor position changes are needed. Because the 500 mm stroke is substantial, the 40 mm rod diameter helps manage side loads, but an external guide is still recommended for unsupported lengths to prevent premature wear.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 500 mm nominal stroke, 50 mm adjustment, PT tapered port, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). This heavy-duty profile cylinder operates at speeds of 30-500 mm/s and utilizes a 50 mm variable air cushion at both ends to decelerate the massive moving load smoothly.
Quick checklist
At the maximum pressure of 1.0 MPa, it delivers a push force of 3204 kgf.
The rear external adjusting screw acts as a stopper that lets you shorten the effective stroke by up to 50 mm, creating a usable travel window of 450 to 500 mm. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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