
The AirTAC Airtac SAI50 Standard Cylinder SAI50AX35 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 35mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI50X35 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and a 35mm stroke. It delivers a push force of 982 N and a pull force of 825 N at 0.5 MPa, making it well-suited for short-travel clamping and indexing tasks. The extruded aluminum barrel is completely tie-rod-less, offering a clean exterior that drops into standard ISO 15552 mounting interfaces.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for superior corrosion resistance in humid or washdown environments. It utilizes PT tapered port threads for a tight, mechanical seal. Because no magnet is specified, this unit operates without electronic position sensing, relying purely on its adjustable air cushions at both ends to decelerate the piston smoothly.
| Model | Airtac SAI50 Standard Cylinder SAI50AX35 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×35 | 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.
Ideal for holding sheet metal or plastic components securely in place during machining or welding operations.
Provides rapid actuation for sorting arms or pop-up gates on conveyor lines, utilizing its 982N push force effectively.
Delivers consistent downward pressure for seating small bearings, pins, or bushings into housings on automated lines.
Select this 50mm bore when 40mm bore cylinders (providing 628 N at 0.5 MPa) lack sufficient thrust, but a 63mm bore (1559 N) would be physically oversized. The 35mm stroke is ideal for compact spaces requiring high force over a very short distance. Because the stroke is short, side-load stress on the rod bearing is minimal compared to longer units.
As a standard double-acting cylinder, the SAI50X35 relies on live air pressure to hold its position; if air is exhausted or pressure drops, the piston will drift. It cannot stop a falling load when de-energized. For applications requiring mechanical position holding without constant air pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. To match this cylinder for an ISO 15552 replacement, specify the 50mm bore, 35mm stroke, PT G1/4 port, appropriate mounting accessory (like FA flange or LB foot), and no magnet.
Quick checklist
At an operating pressure of 0.5 MPa, the SAI50X35 generates a push force of 982 N and a pull force of 825 N. If the pressure is increased to 0.7 MPa, the push force reaches 1374 N.
Yes, the SAI50X35 is dimensionally interchangeable with other standard ISO 15552 profile cylinders. It uses the same standardized mounting interface and G1/4 PT port threads, allowing for a seamless direct replacement.
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