Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX140-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 140mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke140 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-100S
The AirTAC SAIJ80X140-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits up to 100 mm of travel reduction. This creates a wide usable stroke window from 40 to 140 mm, allowing precise end-position tuning during commissioning without adding external stops.
Equipped with a magnetic piston (-S), it supports AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves. The G3/8 PT tapered ports and 36 mm cushions manage pneumatic flow efficiently. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and the rear adjuster acts strictly as a travel stop, meaning it will not hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 140 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×140 | 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 SAIJ80BX140-100S Is Used
Variable End-Stop Positioning
Dial the stroke back from 140 mm to 40 mm to hit different target positions on the fly, perfect for testing multiple end-stops without disassembling the machine.
Product Size Changeover
Quickly adjust the retract distance to accommodate varying package lengths on a packaging line, using the rear screw to fine-tune the stop point.
Machine Setup Commissioning
Fine-tune the final end position during initial machine commissioning without swapping out the cylinder or bolting on secondary physical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-100S the Right Cylinder?
If you need less force, the 63 mm bore provides 1559 N; if you need more, the 100 mm bore yields 3927 N. The 100 mm adjustment range allows you to dial the stroke back from 140 mm down to 40 mm, offering flexibility that a fixed SAI cylinder cannot match.
For an exact ISO 15552 replacement match, ensure the 80 mm bore, 140 mm nominal stroke, 100 mm adjustment, PT G3/8 ports, and -S magnet are specified. Because the nominal stroke is 140 mm, an external guide is not strictly required for side-load management, but the 25 mm rod and M20x1.5 thread provide robust stability. For load-holding without live pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is a stop, not a lock.
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 SAIJ80BX140-100S FAQ
At the maximum operating pressure of 1.0 MPa, it yields a push force of 513 kgf.
The rear adjuster screw lets you shorten the effective travel by up to 100 mm. For a 140 mm nominal stroke, this creates a usable window of 40 to 140 mm. The adjuster acts as a mechanical stop to set the position, but it does not lock the load without continuous air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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