Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 100mm 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
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-50
The AirTAC SAIJ80X100-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 4523N thrust at 0.9 MPa and uses a PT G3/8 port. The integrated adjustment screw allows you to shorten the effective stroke, creating a usable travel window of 50 to 100 mm for precise end-position tuning without external stops.
This unit is built with a SUS304 stainless steel rod for superior corrosion resistance and features an extruded aluminum barrel with sensor grooves on both sides. It supports a speed range of 30-800 mm/s and uses the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. The rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80BX100-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SAIJ80BX100-50 Is Used
Variable End-Stop Tuning
Dial in the exact 50 to 100 mm travel window during commissioning to fine-tune end positions without machining new external stopper blocks.
Product Size Changeover
Quickly adapt the stroke on packaging lines when product dimensions change, using the rear screw to shorten the retraction distance on the fly.
Corrosive Assembly Lines
Leverage the 4523N push force and SUS304 stainless steel rod for reliable actuation in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-50 the Right Cylinder?
Choose this 80mm bore when you need more force than a 63mm cylinder (which provides 2182N push at 0.5 MPa) but less bulk than a 100mm option. The 50mm adjustment range is ideal for machine setups requiring variable end-stops during product changeovers, saving the effort of swapping out a fixed-stroke SAI cylinder. Because the stroke is 100mm, side-load risks are minimal, but always guide the load for stability.
For load-holding without continuous air pressure, select a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead, as this plain SAIJ adjuster cannot brake or hold a suspended load. To replace this ISO 15552 cylinder, match the 80mm bore, 100mm nominal stroke, 50mm adjustment, PT G3/8 port, and SUS304 rod material.
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 SAIJ80BX100-50 FAQ
At 0.9 MPa operating pressure, this 80mm bore cylinder provides a push force of 4523N and a pull force of 2268N. It achieves a maximum push of 513 kgf at 1.0 MPa.
The rear adjuster screw lets you trim the nominal 100mm stroke back by up to 50mm, yielding a usable travel window of 50 to 100mm. It functions purely as a mechanical stop and does not lock or hold the load without live air.
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