The AirTAC Airtac SAI ISO Cylinders SAI50X600SG is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm 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 AirTAC SAI50X600SG is a double-acting ISO 15552 profile cylinder with G1/4 BSPP parallel ports, delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa) across a 600 mm stroke. That reach makes it a natural fit for sliding panels, ejector pushers and long-travel transfer strokes where a compact 50 mm barrel keeps the envelope tight. The extruded aluminium body carries sensor switch grooves on both sides, so CMSE or DMSE switches (fitted when ordered with the -S magnet option) can be mounted on either flank without brackets. Because the SG variant ends in G, the air ports are G1/4 BSPP parallel thread rather than the standard tapered PT - they seal on a bonded washer or O-ring face instead of thread tape, which suits OEM manifolds plumbed to the European parallel standard. The rod can be ordered in carbon steel, SUS420J2 or SUS304, and if the cylinder runs hot (oven-adjacent machinery, steam lines) the Viton H seal set is the option to specify. For a mirrored double-rod version of this same stroke, see the SAID series.
| Model | Airtac SAI ISO Cylinders SAI50X600SG |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 600 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. |
| ×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.
A 600 mm cross-belt ejector that kicks mislabeled or damaged cartons off the main conveyor. The 982 N push at 0.5 MPa sweeps a full case sideways in one pass, and the 30 mm adjustable cushion stops the stroke hard without jolting the frame.
Drives the access panel of a machining-center guard across a 600 mm opening. The G1/4 BSPP ports bond-washer-seal straight into European-style valve manifolds, and the ISO 15552 footprint bolts to standard door-slide brackets.
Squares and pushes cut sheet stock off the saw bed into a stacker. The 50 mm bore gives enough thrust for 18 mm plywood panels at 0.5 MPa, while the 600 mm stroke clears the full depth of a sheet stack in one cycle.
Size both ways from this 50 mm bore: drop to the 40 mm bore (628 N push at 0.5 MPa) if your load stays under roughly 60 kg at moderate speed, or step up to the 63 mm bore (1559 N at 0.5 MPa) when the work is heavier or cycle rates are high. At 600 mm of unsupported rod travel, side load becomes the main life-killer - guide the load externally or specify a guided cylinder rather than letting the rod bearing absorb bending. Note that a plain SAI cannot hold position if air is lost: the piston will drift, so add the SAIL locking variant or an external rod lock where a 600 mm panel must stay put unpowered. To replace another ISO 15552 cylinder with this model, match bore 50, stroke 600, the G1/4 BSPP port style, rod thread M16x1.5, the mounting accessory (LB foot, FA/FB flange, CA/CB clevis, TC trunnion) and -S if the original had a magnet. Order the plain SAI50X600 instead if your plant is plumbed with tapered PT fittings - the SG ports will not seal correctly against tapered hardware without adapters.
Quick checklist
At 0.5 MPa it pushes 982 N and pulls 825 N. At 0.7 MPa push force rises to 1374 N, and at 0.9 MPa it reaches 1767 N. The theoretical maximum is 200 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa with a 1.5 MPa proof rating, and speed runs 30-800 mm/s.
G means the air ports are G1/4 BSPP parallel thread, which seals on a bonded face washer rather than on the thread itself - a common requirement on European and Asian OEM manifolds, and often a made-to-order option versus the default tapered PT version. Dimensionally the cylinder follows the ISO 15552 mounting interface, so it is a drop-in replacement for other ISO 15552 50-bore cylinders once stroke 600, mounting accessory and magnet option are matched. Just confirm your supply fittings are parallel-thread, not tapered.
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