Airtac SAIJ50 Adjustable Cylinder SAIJ50BX105-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX105-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 105mm 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
- Stroke105 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 SAIJ50BX105-100S
The AirTAC SAIJ50X105-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 50mm bore delivering 982N of push force at 0.5 MPa, alongside an integrated magnet for position sensing. The defining feature of this SKU is its 100mm adjustment range, which creates a highly flexible usable travel window of 5-105mm for precise end-position tuning during commissioning.
This model uses a SUS304 stainless steel rod (option B) for superior corrosion resistance in harsh environments. The extruded aluminum barrel includes sensor grooves on both sides, designed to accept AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to decelerate and set the travel end; it does not hold the load without live air pressure, so a SAIL or BSAI lock is needed for position holding.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX105-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX105-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 105 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 SAIJ50BX105-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×105 | 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 SAIJ50BX105-100S Is Used
Variable End-Stop Tuning
Dial the travel back anywhere from 5 to 105mm during machine commissioning to achieve perfect end-position alignment without adding external stopper blocks.
Product Changeover
Quickly adapt the cylinder's effective stroke on the fly when running different sized products on the same conveyor or clamping line.
Corrosive Environment Testing
Leverage the SUS304 stainless steel rod and adjustable stroke for precise positioning in washdown or chemically exposed testing stations.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX105-100S the Right Cylinder?
Choose this adjustable-stroke cylinder when your machine setup requires variable end stops or frequent product-size changeovers without swapping the physical cylinder. The 100mm adjustment window allows you to dial back the 105mm nominal stroke down to 5mm, offering immense flexibility compared to a fixed-stroke SAI model. If you need higher clamping power, stepping up to the 63mm bore yields 1559N of push force at 0.5 MPa.
Because the stroke is 105mm, side-loading is minimal, but always guide the load externally if pushing offset masses. The rod diameter is 16mm with an M12x1.25 thread, providing a robust interface for coupling. When matching this for an ISO 15552 replacement, verify the 50mm bore, 105mm stroke, PT tapered port, and the -S magnet requirement. Remember that the rear screw stopper and the variable air cushions at both ends regulate travel ends but do not function as a brake.
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 SAIJ50BX105-100S FAQ
At 0.5 MPa operating pressure, this 50mm bore cylinder provides 982N of push force and 825N of pull force. It can reach a maximum push force of 1767N at 0.9 MPa.
The rear adjuster screw lets you shorten the effective travel from the nominal 105mm down to as little as 5mm. This 5-105mm window allows fine-tuning of the retract end position at commissioning without replacing the cylinder.
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