Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-30S
The AirTAC SAIJ80X800-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 770-800 mm, allowing you to dial back the nominal 800 mm stroke by up to 30 mm during commissioning. Delivering a robust 4523N push force at 0.9 MPa, it is built with an SUS304 stainless steel rod and a PT tapered port.
The external adjuster acts purely as a travel stop for end-position tuning and does not lock the load without live air pressure. It includes a magnet for CMSE reed and DMSE electronic sensors, and uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB and rear pivot options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80BX800-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SAIJ80BX800-30S Is Used
Machine Changeover
Fine-tune the 770-800 mm travel window during product size transitions without physically replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Dial in the exact retract distance during machine commissioning to perfect a multi-stage assembly process using the rear adjustment screw.
Variable Discharge
Adjust the push-off distance on a conveyor line to accommodate different package lengths hitting a fixed backstop.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-30S the Right Cylinder?
Choose this 80 mm bore if you need more force than the 63 mm class (2182N at 0.5 MPa) but less than the 100 mm class (5497N at 0.7 MPa). An adjustable stroke is ideal for product changeovers where the exact end-of-travel position varies, eliminating the need to swap cylinders or bolt on external stops. For position holding without live air, select the SAIL or BSAI series instead. At 800 mm stroke, the 25 mm rod requires an external guide to prevent excessive side-loading. To match this ISO 15552 replacement, specify bore 80, stroke 800, 30 mm adjustment, PT port, and the -S magnet.
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 SAIJ80BX800-30S FAQ
At 0.9 MPa operating pressure, this 80 mm bore cylinder provides a push force of 4523N and a pull force of 3681N. The maximum allowable operating pressure is 1.0 MPa.
The rear adjuster screw lets you shorten the effective travel from 800 mm down to 770 mm. This creates a 30 mm tuning window for precise end-positioning without changing the cylinder mount, acting as a stop rather than a load lock.
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