Airtac SAIJ50 Adjustable Cylinder SAIJ50AX115-75S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX115-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 115mm 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
- Stroke115 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 SAIJ50AX115-75S
The AirTAC SAIJ50X115-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, letting you dial back the nominal 115 mm travel by up to 75 mm for an effective 40-115 mm usable window. Delivering 982 N of push force at 0.5 MPa, it is built with an SUS420J2 stainless steel rod (code A) for superior corrosion resistance and includes a magnet (-S) for direct compatibility with CMSE reed and DMSE electronic sensors.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during product changeovers. The rear screw acts purely as a travel stop to set the retract end position, not as a lock, so live air is required to hold the load. It features a G1/4 port, variable air cushions at both ends, and extruded aluminum barrel sensor grooves on both sides.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX115-75S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX115-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 115 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 SAIJ50AX115-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×115 | 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 SAIJ50AX115-75S Is Used
Product Changeover
Quickly reconfigure the 40-115 mm travel window on packaging lines to handle different carton sizes without physically replacing the cylinder.
End-Stop Calibration
Fine-tune the retract position during machine commissioning using the rear stopper screw to achieve exact positioning without external shims.
Variable Pitch Indexing
Adapt the effective stroke on automated assembly lines for parts with varying heights, relying on the 982 N force to push consistently.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX115-75S the Right Cylinder?
Choose this 50 mm bore when you need 982 N push force at 0.5 MPa with highly variable end-position requirements; step down to a 40 mm bore (628 N) for lighter loads, or up to a 63 mm bore (1559 N) when more thrust is needed. The adjustable stroke is ideal for commissioning fine-tuning or accommodating multiple product sizes on a single line without changing the cylinder body.
For a direct ISO 15552 replacement, match the 50 mm bore, 115 mm stroke, 75 mm adjustment, PT tapered port threads, and the -S magnet. Because the nominal stroke is 115 mm, standard mounting options apply, but always ensure external guiding if side loads are present. Note that neither the rear adjuster nor the air cushions will hold a load without air pressure; for true load-holding, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ50AX115-75S 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 screw allows you to trim the 115 mm nominal stroke back by up to 75 mm, creating a usable travel window of 40 to 115 mm. It functions as a mechanical stop and does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ50 Adjustable Cylinder SAIJ50AX115-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.