
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX145-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 145mm 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 SAIJ200X145-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa, while operating at a controlled speed of 30-500 mm/s. The barrel is extruded aluminum, featuring sensor grooves on both sides for straightforward position feedback.
This specific SKU provides a usable travel window of 125 to 145 mm, allowing you to dial back the nominal stroke by up to 20 mm during commissioning. It includes a SUS304 stainless steel rod for superior corrosion resistance and comes with a -S magnet for direct compatibility with CMSE reed and DMSE electronic sensors. The PT tapered ports are G3/4.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX145-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 145 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. |
| ×145 | 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 125-145 mm end-position on high-force pressing tasks to accommodate material thickness variations without changing the cylinder setup.
Quickly adjust the stroke stop on a production line when switching between different large-scale product sizes, minimizing downtime.
Move substantial loads with up to 15708 N of push force, using the rear stopper to precisely set the retraction limit for heavy industrial assembly.
Choose this 200 mm bore when a 160 mm bore (delivering 10053 N push at 0.5 MPa) is insufficient for your heaviest loads. The adjustable stroke is ideal for product changeovers or fine-tuning the end position without swapping the entire cylinder or bolting on external stops. The rear adjuster acts purely as a travel stop and does not hold the load without live air; for true load-holding without pressure, select a SAIL or BSAI cylinder. To replace an ISO 15552 cylinder, match the 200x145 stroke, 20 mm adjustment, G3/4 PT ports, SUS304 rod, and -S magnet.
Quick checklist
At 0.5 MPa, it provides 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 allows you to shorten the effective stroke by up to 20 mm, creating a usable travel window of 125 to 145 mm for fine-tuning without external stops.
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