
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X850-10S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ200X850-10-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. A carbon steel rod and PT tapered port come standard on this heavy-duty unit.
Because the nominal 850mm stroke is substantial, the robust 40mm rod diameter handles significant side loads, though an external guide is still recommended for unsupported lengths. The integrated -S magnet enables position detection with AirTAC CMSE reed or DMSE electronic sensors. This extruded aluminum profile cylinder supports a 30-500mm/s speed range and includes adjustable air cushions at both ends to decelerate large masses smoothly.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-10S |
|---|---|
| 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 | 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. |
| ×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 840-850mm end-stop during heavy press commissioning to accommodate material thickness variations without swapping cylinders.
Fine-tune the retraction point on large-scale assembly jigs where a 10mm adjustment resolves minor mechanical misalignments safely.
Adapt automated conveyor diverter arms to new pallet sizes by adjusting the rear stopper screw, avoiding lengthy mechanical rebuilds.
Conversely, if you need less thrust, a 125mm bore provides 6136N.
The 10mm rear adjuster acts purely as a mechanical stop to fine-tune the retraction point; it does not lock the load or hold position without live air pressure. For load-holding requirements on this 850mm stroke, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external pilot-operated check valve. To match this cylinder exactly for an ISO 15552 replacement, specify the 200mm bore, 850mm stroke, 10mm adjustment, G3/4 port, PT thread, and -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Quick checklist
At its maximum rated pressure of 1.0 MPa, it can deliver up to 3204kgf.
The rear adjuster screw allows you to shorten the 850mm nominal stroke by up to 10mm, creating an effective 840-850mm travel window. This mechanical stop fine-tunes the end position but does not hold the load without continuous air pressure.
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