Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm 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
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50
The AirTAC SAIJ80X105-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits up to 50 mm of travel reduction. This yields a highly flexible 55 to 105 mm usable stroke window, allowing precise end-position tuning during commissioning without swapping out the physical actuator. Delivering a robust 2268 N pull force at 0.5 MPa, it is engineered for demanding positioning tasks.
The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection integration. It features a 25 mm carbon steel rod with an M20x1.5 thread, providing substantial rigidity against side loads, and utilizes a PT tapered G3/8 port. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR configurations. The rear adjuster acts purely as a mechanical stop to set deceleration limits and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAIJ80X105-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SAIJ80X105-50 Is Used
Variable End-Stop Positioning
Dial in the exact clamping depth between 55 and 105 mm on the fly, perfect for accommodating varying material thicknesses without changing out the cylinder assembly.
Machine Setup Changeover
Quickly reconfigure the stroke length during product line transitions by turning the rear adjustment screw, drastically reducing downtime versus mechanical modifications.
Actuator Commissioning
Fine-tune the retract end-position during initial machine commissioning to perfectly synchronize the 25 mm rod extension without adding external physical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-50 the Right Cylinder?
Choose this 80 mm bore actuator when your application demands the 2268 N pull force at 0.5 MPa, stepping up from a 63 mm bore that provides 1402 N, or stepping down from a 100 mm bore yielding 3681 N. The 50 mm adjustment range is ideal for production lines requiring frequent product-size changeovers, eliminating the need to physically swap cylinders or add external stops like a fixed-stroke SAI model would require.
For load-holding during an air pressure failure, note that this plain SAIJ cylinder relies entirely on live air; the rear adjuster and air cushions are not brakes. You must look to SAIL or BSAI clamp-lock variants for true fail-safe holding. Since this unit features a PT port thread and no standard magnet (-S), it supports standard pneumatic plumbing but requires external sensors or a magnet-equipped variant for reed (CMSE) or solid-state (DMSE) switch integration. As with any stroke of 105 mm, ensure adequate guiding if experiencing heavy eccentric loads.
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 SAIJ80X105-50 FAQ
This 80 mm bore cylinder provides a push force of 2513 N and a pull force of 2268 N at 0.5 MPa, reaching up to 4523 N push at 0.9 MPa. It operates at speeds between 30 and 800 mm/s.
The rear adjuster screw mechanically limits the piston's retract travel, allowing you to shorten the 105 mm nominal stroke anywhere down to 55 mm. It functions as a travel stop for deceleration and positioning, not as a lock to hold the load without air pressure.
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