Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100 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 SAIJ80BX900-100
The AirTAC SAIJ80X900-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the end position. It provides a usable travel window of 800-900 mm, allowing you to dial back the 900 mm nominal stroke by up to 100 mm during commissioning without adding external stops. This bore size delivers a robust 2513 N pull force at 0.5 MPa, making it suitable for heavy manipulation tasks.
Equipped with a SUS304 stainless steel rod and PT tapered ports, this model handles speeds of 30-800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100 |
|---|---|
| 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 SAIJ80BX900-100
| 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 SAIJ80BX900-100 Is Used
Product Changeover Lines
Set variable end-stops rapidly when switching package sizes on a conveyor, using the 100 mm adjustment window to adapt positions without mechanical rebuilds.
Heavy Assembly Stations
Leverage the 2513 N pull force to press or lift components, fine-tuning the exact travel end during machine setup for precise alignment.
Long-Stroke Positioning
Dial in the 800-900 mm travel window during commissioning to perfect long-throw movements while relying on external guides to manage side loads.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-100 the Right Cylinder?
Choose this 80 mm bore when an application requires more force than a 63 mm cylinder (which provides 1402 N pull at 0.5 MPa) but does not need the full 3681 N pull of a 100 mm unit. The adjustable stroke is ideal for product changeovers on a line, letting operators set variable end-stops precisely without swapping the cylinder. Because the 900 mm stroke is long and unsupported, an external guide is recommended to prevent rod side-load damage.
For load-holding without live air pressure, note that the rear adjuster acts only as a travel stop and the air cushions only decelerate the load—neither functions as a lock. You would need an external rod lock, a pilot-operated check valve, or a related AirTAC type like SAIL or BSAI for secure positioning. To replace an ISO 15552 cylinder, match the 80 mm bore, 900 mm stroke, 100 mm adjustment, PT G3/8 port, and the desired mounting bracket.
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 SAIJ80BX900-100 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of pull force and 3518 N of push force. At the maximum operating pressure of 1.0 MPa, it delivers a push force of 4523 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 900 mm nominal stroke down to 800 mm. It is a travel stop for end-position tuning, not a lock, and does not hold the load without live air pressure.
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