Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 165mm 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
- Stroke165 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 SAIJ50BX165-100S
The AirTAC SAIJ50X165-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a broad usable travel window of 65 to 165 mm, enabling precise end-position tuning during commissioning without swapping out the barrel or adding external stops. It delivers 982N of push force and 825N of pull force at 0.5 MPa, fitting neatly into the mid-range thrust class.
This specific configuration features a SUS304 stainless steel rod (code B) for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE solid-state electronic switches. The rear adjuster acts purely as a travel stop for deceleration and does not hold the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 165 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 SAIJ50BX165-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×165 | 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 SAIJ50BX165-100S Is Used
Variable End-Stop Tuning
Dial in the exact retract position between 65 and 165 mm during machine setup, avoiding the need to physically swap cylinders or bolt on external mechanical stops for different jigs.
Product Size Changeover
Quickly adapt a packaging line to varying carton lengths by turning the rear adjuster, shifting the end-of-stroke position to match new product dimensions without changing the pneumatic footprint.
Corrosive Assembly Tasks
Leverage the SUS304 stainless steel rod for light assembly and pressing tasks in washdown or chemical-adjacent environments where carbon steel rods would degrade.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-100S the Right Cylinder?
Choose this 50mm bore when a 40mm bore (offering 628N push at 0.5 MPa) is too weak, but a 63mm bore (1559N push) would overcomplicate your footprint and energy use. The 100mm adjustment range is ideal for machines running multiple product sizes, letting you dial back the stroke by up to 100mm on the fly. For load-holding without continuous air pressure, this cylinder is not a lock; you would need to step up to an SAIL (air-released lock) or BSAI (clamp-lock) variant, or use an external pilot-operated check valve. When matching an ISO 15552 replacement, verify the 50mm bore, 165mm stroke, 100mm adjuster, PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting set, and the -S magnet requirement.
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 SAIJ50BX165-100S FAQ
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke by up to 100 mm. This creates a usable travel window of 65 to 165 mm. The adjuster only sets the travel end and provides deceleration; it does not lock or hold the load without live air pressure.
At a standard 0.5 MPa operating pressure, the SAIJ50X165-100-S generates 982N of push force and 825N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 1374N.
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