
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 150mm 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 SAIJ50X150-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 150 mm travel by up to 50 mm. This creates a 100-150 mm usable positioning window, ideal for fine-tuning end stops during commissioning without swapping hardware. It delivers 982 N of push force at 0.5 MPa and features a SUS304 stainless steel rod for superior corrosion resistance.
This extruded aluminum profile cylinder includes sensor grooves on both sides and uses PT tapered port threads (G1/4). The rear adjuster acts strictly as a travel stop for deceleration, not a lock, meaning it will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 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. |
| ×150 | 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.
Quickly reconfigure end-of-stroke positions for different product sizes on a packaging line without changing the cylinder.
Fine-tune the 100-150 mm travel window during setup to achieve exact positioning without adding external mechanical stops.
Adjust the stroke length on a diverter arm to handle varying package widths on the fly.
Choose this 50 mm bore when you need 982 N push force at 0.5 MPa, stepping up from a 40 mm bore (628 N) or down from a 63 mm bore (1559 N). The 50 mm adjustment range is particularly useful on packaging lines where product formats frequently change, eliminating the need to bolt on external stops or replace a fixed-stroke SAI cylinder. When matching your ISO 15552 footprint, specify the 150 mm stroke, 50 mm adjustment, PT port thread, SUS304 rod, and required mounting from the SAIJ set: Basic, FA, LB, TC, FTC, TCM1, TCM2. Since the nominal stroke is 150 mm, standard guiding is typically sufficient, but always ensure the load is supported to prevent excessive rod side-loading.
Quick checklist
At a 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 200 kgf.
The rear adjuster screw allows you to shorten the effective travel from the nominal 150 mm down to 100 mm. It functions as a mechanical stop to set the end position and relies on the air cushion for deceleration; 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.