Airtac SAIJ50 Adjustable Cylinder SAIJ50BX500-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX500-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 500mm 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
- Stroke500 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 SAIJ50BX500-100S
The AirTAC SAIJ50X500-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 100 mm. This yields a highly flexible 400-500 mm usable stroke window, letting you fine-tune the retract end-position at commissioning without swapping out the barrel. Delivering 982 N of push force at 0.5 MPa, it handles robust linear motion tasks with precision.
This variant is equipped with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for use with CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and fluid supply is routed through PT tapered ports. The rear adjustment screw acts purely as a travel stop to decelerate the load, meaning it will not hold the position without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX500-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX500-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 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 SAIJ50BX500-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×500 | 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 SAIJ50BX500-100S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 400-500 mm window during machine setup, avoiding the need to machine custom spacers or swap cylinders for minor dimensional shifts.
Product Changeover
Quickly adapt the stroke length on a packaging line when handling different carton sizes, using the 100 mm adjustment range to accommodate varying product widths on the fly.
Corrosion-Resistant Actuation
Leverage the SUS304 stainless steel rod in mildly corrosive or washdown environments while maintaining precise end-position control for repeated manufacturing cycles.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX500-100S the Right Cylinder?
Choose this 50 mm bore when 982 N (0.5 MPa) of push force is sufficient; if your application requires less force, a 40 mm bore provides 628 N, while a 63 mm bore steps up to 1559 N. The adjustable stroke is ideal for machine changeovers and product-size variations, replacing the need for fixed-stroke SAI cylinders and external stops. Because this is a 500 mm stroke, the 20 mm rod diameter should be paired with an external guide to manage side loads and prevent rod deflection. For load-holding without continuous air pressure, use an external rod lock or pilot-operated check valve, as the SAIJ adjuster is not a brake. This unit is dimensionally interchangeable per ISO 15552 and is configured with PT ports, a SUS304 rod, and a magnet for position sensing.
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 SAIJ50BX500-100S 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 achieve up to 1767 N of push force at 0.9 MPa.
The rear adjuster allows you to shorten the nominal 500 mm stroke by up to 100 mm, creating a 400-500 mm usable travel window. The adjuster acts as a mechanical stop to set the end position and does not function as a lock to hold the load without air pressure.
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Covers non-human-caused product damage.
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