
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX850-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 850mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ200X850-10 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 provides an 840-850 mm usable travel window, letting you dial in the exact retract position without swapping out the unit. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model features a robust 40 mm piston rod with an M36x2 thread and SUS420J2 stainless steel material for high side-load resilience. It uses a PT tapered G3/4 port and reaches operating speeds of 30-500 mm/s. The rear adjustment mechanism acts purely as a travel stop for end-position tuning, not as a load-holding lock.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX850-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 850 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
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. |
| ×850 | 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 840-850 mm end position for large stamping or press operations during initial commissioning without external stopper blocks.
Adjust the retract stopper by a few millimeters on a packaging line to accommodate different large product sizes quickly.
Utilize the 850 mm travel for ejecting heavy molded parts, relying on the 40 mm SUS420J2 rod to handle high side loads.
Choose this 200 mm bore size when your application requires extreme force that smaller bores cannot provide, such as moving past the 21991N push force of a 160 mm cylinder. The 10 mm adjustable range is ideal for fine-tuning long-stroke machinery setups during commissioning or product changeovers, avoiding the need to bolt on external stops. For any stroke at or above 300 mm, the long unsupported rod length demands an external guide to prevent excessive side loading and premature wear.
Because the rear adjuster and air cushions only decelerate the load, a plain SAIJ will not hold position without live air pressure. If your workflow requires true load-holding without continuous air, consider the SAIL pneumatic lock series or an external rod lock. This cylinder is dimensionally interchangeable per ISO 15552 and supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
The rear adjuster lets you shorten the 850 mm nominal stroke by up to 10 mm, creating an 840-850 mm travel window. It functions as a mechanical stop to set the end position and does not lock the load without air pressure.
At 0.9 MPa, this 200 mm bore cylinder provides a push force of 28274N and a pull force of 15080N. It can deliver a maximum force of 3204 kgf at 1.0 MPa.
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