
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX65-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 65mm 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 SAIJ200X65-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning the retract end-position. It provides a usable travel window of 25 to 65 mm, allowing you to dial back the nominal 65 mm stroke by up to 40 mm without adding external stops. Operating at 0.5 MPa, it delivers a substantial push force of 15708 N and a pull force of 15080 N, making it well-suited for heavy-duty positioning tasks.
This unit is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. It supports speeds of 30-500 mm/s and uses adjustable air cushions at both ends to manage kinetic energy during operation.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX65-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 65 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. |
| ×65 | 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 retract distance between 25 and 65 mm during machine setup to accommodate different material thicknesses without changing hardware.
Quickly reconfigure the stroke limit on packaging lines handling varying product dimensions, using the rear screw to set the new stop point.
Leverage the 15708 N push force at 0.5 MPa to secure heavy workpieces, adjusting the clamp position precisely to the part size.
Choose this 200 mm bore cylinder when your application demands high thrust, such as 15708 N at 0.5 MPa, combined with precise end-stop tuning for product changeovers. If your process requires less force, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa. The adjustable rear stopper is ideal for commissioning setups where the exact end-of-stroke position varies, replacing the need to swap out a fixed-stroke SAI cylinder.
Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure; for true load-holding without continuous air, consider the SAIL or BSAI series. Because the 40 mm rod and M36x2 thread provide high structural rigidity, side-load capacity is excellent, though any long unsupported stroke still necessitates an external guide. This model is dimensionally interchangeable per ISO 15552 and uses a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At a standard operating pressure of 0.5 MPa, this 200 mm bore cylinder generates a push force of 15708 N and a pull force of 15080 N. It can reach a maximum push force of 21991 N at 0.7 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from its 65 mm nominal length down to 25 mm. This creates a 25-65 mm travel window for fine-tuning end positions at commissioning, though it does not lock the load without live air.
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