
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X75-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 75mm 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 SAIJ200X75-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 35 to 75 mm, enabling precise end-position tuning at commissioning without adding external stops.
This actuator features a robust 40 mm carbon steel piston rod with an M36x2 thread, designed to handle high side loads, though a 75 mm stroke still necessitates external guiding for optimal machinery longevity. It uses a PT tapered G3/4 port and includes variable air cushions at both ends to decelerate heavy moving masses. The mounting footprint supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X75-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 75 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. |
| ×75 | 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 35 to 75 mm travel window during heavy press setup to accommodate varying material thicknesses without changing the cylinder.
Adjust the retract end-stop on the fly during product size changeovers on a conveyor line, saving downtime by avoiding physical cylinder swaps.
The 40 mm rear adjustment screw is ideal for product-size changeovers on a line, allowing you to dial back the stroke from 75 mm down to 35 mm. If you need less force, stepping down to a 160 mm bore yields 10053 N at 0.5 MPa, whereas fixed-stroke needs without commissioning fine-tune are better served by the standard SAI series.
Because the rear adjuster acts only as a travel stop and the air cushions manage deceleration, neither will hold a load without live air. For load-holding without continuous pneumatic pressure, you must integrate an external pilot-operated check valve or switch to a SAIL (air-released lock) or BSAI (clamp-lock) cylinder. When matching ISO 15552 interchangeability, specify the 200 mm bore, 75 mm stroke, 40 mm adjustment, PT G3/4 port, and the required mounting bracket.
Quick checklist
The operating speed range is 30-500 mm/s.
The rear adjuster allows you to shorten the effective travel from the nominal 75 mm down to 35 mm, creating a 35-75 mm adjustable window. It acts as a mechanical stop to fine-tune the end position and does not lock the load without live air.
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