Airtac SAIJ50 Adjustable Cylinder SAIJ50BX80-75S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX80-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 80mm 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
- Stroke80 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 SAIJ50BX80-75S
The AirTAC SAIJ50X80-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 80 mm travel back by up to 75 mm. This creates a highly flexible usable travel window of 5 to 80 mm, letting you dial in the exact end position at commissioning without swapping hardware. It delivers 982 N of push force and 825 N of pull force at 0.5 MPa.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and an integrated magnet for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel provides sensor grooves on both sides, and the standard PT G1/4 porting ensures simple integration into existing pneumatic setups.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX80-75S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX80-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 80 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 SAIJ50BX80-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×80 | 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 SAIJ50BX80-75S Is Used
Machine Setup Changeover
Fine-tune the 5 to 80 mm travel window during line changeovers to accommodate different product sizes without installing external physical stops.
Variable End-Positioning
Dial in the exact retract distance on the fly for multi-format tooling, relying on the 20 mm rod and M16x1.5 thread for robust actuation.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod for reliable thrust in washdown or chemical exposure areas while using DMSE sensors for feedback.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX80-75S the Right Cylinder?
Choose this 50 mm bore adjustable cylinder when your application requires variable end-stops or frequent product-size changeovers, stepping up from a 40 mm bore (628 N push at 0.5 MPa) for greater thrust. The rear adjuster acts strictly as a travel stop to fine-tune the retract position, meaning it will not hold the load without live air pressure. For true load-holding requirements without continuous air, consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 50 mm bore, 80 mm nominal stroke, 75 mm adjustment range, PT G1/4 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR mounts.
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 SAIJ50BX80-75S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 200 kgf.
The rear adjuster screw lets you shorten the 80 mm nominal stroke by up to 75 mm, creating a usable travel window of 5 to 80 mm. This stopper only sets the end position and deceleration; it does not lock or hold the load without live air pressure.
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Covers non-human-caused product damage.
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