
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX45-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 45mm 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 SAIJ200X45-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, engineered for heavy-duty applications requiring exact end-position tuning. It delivers a substantial 15708 N push force at 0.5 MPa and features a robust 40 mm piston rod paired with G3/4 pneumatic ports. An external adjusting screw at the rear allows you to shorten the effective stroke, providing a usable travel window of 15 to 45 mm without the need to physically swap the cylinder or add external stops.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and utilizes PT tapered port threads for a reliable, sealed connection. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing for direct mounting of position switches. While the rear screw and the variable air cushions at both ends decelerate the load effectively, neither component functions as a lock; a plain SAIJ cylinder will not hold its position or load without live air pressure.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX45-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 45 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. |
| ×45 | 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 end-position from 15 to 45 mm during packaging line format changes without swapping cylinders or adding external spacers.
Leverage the 15708 N push force at 0.5 MPa for high-load pressing and forming tasks that require precise, repeatable travel limits.
Fine-tune the retract end-stop during initial machine build to dial in the exact clamping position, avoiding the need for custom machined stops.
Choose this 200 mm bore model when your application demands high thrust, such as 15708 N push or 15080 N pull at 0.5 MPa, combined with a short, highly tunable travel range. If your process requires less force, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa while maintaining a similar profile footprint. The adjustable stroke is ideal for machine setup and product changeover, allowing operators to fine-tune the end-stop on the fly rather than machining custom spacers or installing a fixed-stroke SAI cylinder. When specifying this ISO 15552 interchangeable cylinder, confirm the 200 mm bore, 45 mm stroke, 30 mm adjustment, PT G3/4 ports, and your required mounting bracket from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
At an 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. At 0.7 MPa, the push force increases to 21991 N.
The rear adjusting screw acts as a mechanical stop that trims the effective travel. For this 45 mm nominal stroke model, the -30 adjustment code allows you to reduce the stroke length by up to 30 mm, creating a usable travel window of 15 to 45 mm for exact end-position tuning.
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