
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 240mm 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 SAIJ200X240-20-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks, featuring a robust 200 mm bore that generates 15708 N of push force at 0.5 MPa. A rear mechanical stopper allows you to trim the effective travel, creating a precise 220-240 mm usable window. This fine-tuning capability is ideal for dialing in final end positions during commissioning without swapping out the entire actuator.
Built for demanding environments, this unit incorporates a SUS420J2 stainless steel rod (option A) for superior corrosion resistance. The integrated magnet (-S) supports position sensing via AirTAC CMSE reed or DMSE electronic solid-state switches mounted in the dual-side sensor grooves. Fluid supply is routed through a PT G3/4 tapered port, while variable air cushions at both ends manage deceleration across its 30-500 mm/s speed range.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 240 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. |
| ×240 | 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 220-240 mm end position during machine commissioning to accommodate varying material thicknesses without adding external stopper blocks.
Quickly adjust the retract end-stop on a packaging line to handle different pallet or product sizes on the fly.
Leverage the 15708 N push force at 0.5 MPa to move heavy industrial components while fine-tuning the final clamping position.
Selecting this 200 mm bore actuator provides massive thrust, stepping up significantly from the 160 mm bore which yields 10053 N of push force at 0.5 MPa. The adjustable stroke is chosen when a machine design requires a variable end-stop for product changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. For any application exceeding 300 mm of travel, external guides are recommended to manage side loads, though this 240 mm stroke remains well within safe operational limits.
When ordering an ISO 15552 replacement, verify the 200 mm bore, 240 mm nominal stroke, 20 mm adjustment range, PT G3/4 port, and the -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series instead.
Quick checklist
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can reach a maximum push force of 28274 N at 1.0 MPa.
The rear adjuster screw lets you shorten the 240 mm nominal stroke by up to 20 mm, providing a usable travel window of 220-240 mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
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