Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 900mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100S
The AirTAC SAIJ80X900-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 900 mm travel to anywhere within an 800-900 mm usable window. Delivering 2513 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and operates at speeds of 30-800 mm/s. The integrated magnet (-S) directly supports AirTAC CMSE reed and DMSE electronic solid-state sensors.
Because the stroke reaches 900 mm, the 25 mm rod diameter and M20x1.5 rod thread provide robust support, though an external guide is highly recommended to manage side loads on such a long unsupported span. The rear adjuster acts purely as a travel stop for end-position tuning during commissioning; it does not hold the load without live air pressure. For load-holding requirements, consider an external rod lock or the related SAIL pneumatic lock cylinder series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 900 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×900 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX900-100S Is Used
Variable Length Diverter
Adjusts the retract distance on a sorting line to handle different package sizes without physically repositioning the cylinder mount.
Machine Commissioning
Fine-tunes the 800-900 mm travel window during setup to perfectly time the end-of-stroke position without adding external stopper hardware.
Product Changeover
Quickly dials in a new end-stop position on automated assembly lines when switching between different product lengths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100S the Right Cylinder?
Choose this 80 mm bore when you need significantly more thrust than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa) but want to avoid the larger footprint and 3927 N force of a 100 mm bore. The 100 mm adjustment range is ideal for machinery requiring flexible end-stops during product changeovers, eliminating the need to physically swap cylinders or bolt on external stopper blocks. This model uses PT tapered ports and supports the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
When replacing an ISO 15552 cylinder, match the 80 mm bore, 900 mm nominal stroke, 100 mm adjustment code, PT G3/8 port, and the -S magnet requirement. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement. Remember that the air cushion and rear stopper only decelerate the piston; they are not a braking mechanism, so pilot-operated check valves are needed to hold loads statically without air pressure.
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 SAIJ80 Adjustable Cylinder SAIJ80BX900-100S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw lets you mechanically shorten the effective stroke from the nominal 900 mm down to 800 mm. This creates an 800-900 mm adjustable travel window for fine-tuning end positions at commissioning, acting as a stop rather than a load lock.
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