Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 475mm 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.
- BoreØ50 mm
- Stroke475 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S
The AirTAC SAIJ50X475-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 375-475 mm usable travel window, allowing you to dial back the 475 mm nominal stroke by up to 100 mm during commissioning. In the 50 mm bore class, it delivers 982 N push thrust at 0.5 MPa, making it well-suited for moderate-force handling tasks.
This variant features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the rear stopper functions purely as a travel end-limit, not a load-holding lock.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 475 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.
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×475 | 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.
Where the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S Is Used
Machine Changeover
Quickly fine-tune the 375-475 mm end-stop during product size transitions on a packaging line without disassembling the actuator.
Sensor Integration
Equipped with a -S magnet for drop-in compatibility with DMSE solid-state and CMSE reed switches to confirm end-of-travel positions.
Corrosive Environments
The SUS304 stainless steel rod provides reliable actuation in food processing or light chemical environments where standard carbon steel rods fail.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S the Right Cylinder?
Choose this adjustable-stroke model when your application requires frequent end-position tuning or product-size changeovers without swapping out the entire cylinder. If your setup demands less force, stepping down to a 40 mm bore yields 628 N at 0.5 MPa; for heavier loads, a 63 mm bore provides 1559 N. Because the total stroke is 475 mm, an external guide is recommended to prevent excessive side-load wear on the rod and seals.
When specifying an ISO 15552 replacement, match the 50 mm bore, 475 mm stroke, 100 mm adjustment range, PT tapered ports, and the -S magnet requirement. Remember that the rear adjuster only decelerates and sets the travel end; it cannot hold a load without live air pressure. For true fail-safe load holding, consider the SAIL or BSAI series instead.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX475-100S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. It can reach up to 1767 N push force at 0.9 MPa.
The rear adjuster allows you to mechanically shorten the stroke by up to 100 mm from the 475 mm nominal length, creating a usable travel window of 375-475 mm. This stopper sets the end position but does not lock the load without live air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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