
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 1000mm 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 SAIJ50X1000-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the effective travel window from 925 to 1000 mm. Delivering 982 N of push force at 0.5 MPa, it handles robust linear motion tasks. This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors.
The PT tapered port threads ensure a tight, reliable pneumatic connection. Because the rear adjuster functions strictly as a mechanical stop to set the end position, it will not hold a load without live air pressure. For applications requiring position holding without continuous air supply, consider the SAIL or BSAI series instead.
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 1000 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. |
| ×1000 | 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 925-1000 mm travel window on packaging lines when switching box sizes, avoiding physical cylinder swaps.
Fine-tune the retract end-position during commissioning to perfect timing without machining external stoppers.
Leverage the SUS304 stainless steel rod for reliable thrust in washdown or chemical processing areas.
Choose this 50 mm bore when you need more thrust than the 40 mm bore provides (628 N at 0.5 MPa) but want to avoid the bulk of a 63 mm cylinder. The 75 mm adjustment range is ideal for product changeovers, letting you dial in the exact end position without swapping cylinders or adding external stops. When matching an ISO 15552 replacement, verify the 50 mm bore, 1000 mm stroke, PT ports, and the -S magnet requirement. Given the 1000 mm stroke, an external guide is highly recommended to prevent excessive side loading on the rod.
Quick checklist
At 0.5 MPa, it delivers 982 N of push force and 825 N of pull force. The operating speed ranges from 30 to 800 mm/s.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 1000 mm stroke by up to 75 mm, creating a 925-1000 mm usable window. It does not lock the load without air pressure.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.