Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-100S 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 SAIJ80BX800-100S
The AirTAC SAIJ80X800-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 800 mm travel by up to 100 mm. This creates a precise 700-800 mm usable stroke window, allowing fine end-position tuning at commissioning without swapping the barrel or bolting on external stops. It delivers a robust 2513 N pull force at 0.5 MPa, making it suitable for heavy manipulation tasks.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel includes sensor grooves on both sides. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-100S |
|---|---|
| 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 SAIJ80BX800-100S
| 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 SAIJ80BX800-100S Is Used
Variable End-Stop Forming
Dial in the 700-800 mm stroke window during press setups to accommodate different material lengths without changing the cylinder.
Product-Size Changeover
Quickly adjust the rear stopper on a packaging line to handle varying box widths on the fly, ensuring precise positioning.
Commissioning Fine-Tuning
Trim the effective travel by up to 100 mm during machine commissioning to resolve mechanical interferences without adding external stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-100S the Right Cylinder?
Choose this 80 mm bore when a 63 mm bore (providing 1402 N pull at 0.5 MPa) lacks the thrust for your dynamic loads, but a 100 mm bore (3681 N pull) would be excessive. The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers. Because the nominal stroke is 800 mm, the 25 mm rod and M20x1.5 thread provide rigidity, but long unsupported strokes still require an external guide to prevent side-loading damage.
For an exact ISO 15552 replacement match, specify an 80 mm bore, 800 mm stroke, 100 mm adjustment, PT tapered ports, SUS304 (B) rod material, and a magnet (-S). Remember that the rear adjuster and air cushions only decelerate the travel end. If you need true load-holding without live pressure, select the SAIL air-released lock or BSAI clamp-lock cylinder instead.
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 SAIJ80BX800-100S FAQ
At 0.5 MPa it provides 2513 N pull and 3518 N push. At 0.7 MPa the push increases to 3518 N and pull to 2268 N.
The rear adjuster screw lets you shorten the 800 mm nominal stroke by up to 100 mm, creating a 700-800 mm usable travel window. It acts as a mechanical stop and does not lock the load without live air.
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