The AirTAC Airtac SAI ISO Cylinders SAI40X600G is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 600mm stroke, G1/4 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 SAI40X600G is a double-acting ISO 15552 profile cylinder with G1/4 BSPP ports, a parallel thread that seals on a bonded washer or O-ring face instead of the tape or paste a tapered PT port needs. Its 40 mm bore pushes 628 N at 0.5 MPa (879 N at 0.7 MPa), and the 600 mm stroke reaches deep into presses, sliding gates and gantries in a single move at speeds up to 800 mm/s. Because the extruded aluminium barrel follows the ISO 15552 interface, it drops onto the mounting pattern of any other ISO 15552 cylinder of the same bore and stroke. Two ordering details matter on a long-stroke unit like this. If the cylinder works near ovens, dryers or hot dies, specify the H-seal Viton option for high-temperature media; and add the -S magnet so CMSE or DMSE switches can ride in the grooves machined on both sides of the barrel, useful for mid-stroke confirmation over 600 mm of travel. The 16 mm rod is available in carbon steel, or SUS420J2 / SUS304 stainless by suffix.
| Model | Airtac SAI ISO Cylinders SAI40X600G |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 600 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×600 | 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.
Kicks formed brackets out of a 600 mm deep progressive die on a small press line - the 628 N push (879 N at 0.7 MPa) clears sticking parts, and the G1/4 BSPP ports suit European-built press plumbed manifolds.
Pushes trays of 500 ml bottles sideways off a filler takeaway conveyor; the full 600 mm stroke sweeps the whole lane width in one move, with CMSE switches on the -S magnet confirming home and advanced positions.
Slides the entry door of a powder-coating oven open and closed; pair the cylinder with the H-seal Viton option so the seals survive radiant heat near the tunnel mouth.
Size down to bore 32 (402 N at 0.5 MPa) only for light gates or indexing fingers; step up to bore 50 (982 N at 0.5 MPa) once the moving load approaches half of this cylinder's 628 N push, since keeping inertia loads near or below half of available force leaves the 30 mm adjustable cushions enough margin to stop the piston smoothly. With 600 mm of unsupported 16 mm rod, fit external guides or pair the cylinder with a guided slide whenever side load is present - long rods bend the front bearing. Remember that no standard SAI holds its position when air is lost or the valve centres; the rod will drift, so choose the SAIL lock variant or an external rod lock / pilot-operated check valve if the load must stay put unpressurised. To swap out an existing ISO 15552 cylinder, match bore 40, stroke 600, mounting accessory (LB foot, FA/FB flange, CA/CB clevis, TC trunnion) and add -S if sensors are fitted. Critically, match the plumbing standard: this G version takes parallel BSPP fittings that seal on a face washer - if your machine is plumbed with tapered PT/Rc fittings, order the plain SAI40X600 instead.
Quick checklist
At 0.5 MPa the 40 mm bore pushes 628 N and pulls 528 N. At 0.7 MPa push rises to 879 N, and at 0.9 MPa it reaches 1130 N. The theoretical maximum is 128 kgf at 1.0 MPa. Keep live loads comfortably under these figures so the adjustable cushions can decelerate the piston over its 30 mm cushion length.
Yes - the SAI follows the ISO 15552 mounting interface, so it is dimensionally interchangeable with other ISO 15552 cylinders of the same bore, stroke and mounting style. The deciding detail is the port thread: this -G model has G1/4 BSPP parallel ports that seal on a bonded washer, the standard on many EU and Asian OEM manifolds. If your machine is plumbed with tapered PT (Rc) fittings, order the plain SAI40X600 so the ports match your existing pipework, then carry over the mounting accessory and add -S if position switches are used.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.