Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-10S
The AirTAC SAIJ80X550-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 2513N of push force at 0.5 MPa and features a 550mm nominal stroke that can be fine-tuned down by up to 10mm, creating a precise 540-550mm usable travel window. This built-in stopper allows you to dial in the exact retract end position during commissioning without adding external physical stops.
Built for demanding environments, this variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and carries PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and because this model includes a magnet (-S), it supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback. The 25mm rod and M20x1.5 thread provide excellent side-load resilience, though the 550mm length still requires an external guide for optimal performance.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 550 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 SAIJ80BX550-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×550 | 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 SAIJ80BX550-10S Is Used
Machine Setup Calibration
Fine-tune the 540-550mm retract position during initial commissioning to perfectly align tooling without machining custom spacer blocks.
Product Size Changeover
Quickly adjust the end-stop by a few millimeters on automated lines when switching between slightly different product lengths.
Material Diverter Positioning
Dial in the exact stroke limit for heavy diverting arms, using the 2513N force to push products reliably without overtravel.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-10S the Right Cylinder?
Select this 80mm bore cylinder when an application requires substantial thrust—stepping up from a 63mm bore increases push force from 1559N to 2513N at 0.5 MPa. If 2513N is excessive, dropping to a 50mm bore yields 982N. The 10mm adjustment range is ideal for applications needing minor end-position corrections during machine setup or product changeovers, avoiding the downtime of swapping a fixed-stroke SAI cylinder.
Because the 550mm stroke exceeds 300mm, an external guide rail is strongly recommended to prevent rod binding under heavy loads. Remember that the rear adjuster functions strictly as a travel stop, not a locking device; this SAIJ cylinder cannot hold a load without continuous live air pressure. For true pneumatic load-holding, consider an AirTAC SAIL or BSAI series cylinder. This model is dimensionally interchangeable per ISO 15552 and uses the standard SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80BX550-10S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as an external stopper that lets you shorten the effective stroke by up to 10mm, providing a usable travel window of 540-550mm. It sets the end position but does not lock the load without live air pressure.
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