Airtac SAIJ80 Adjustable Cylinder SAIJ80X350-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X350-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X350-100
The AirTAC SAIJ80X350-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel anywhere within a 250 to 350 mm window. Delivering a robust 4523 N of push force at 0.9 MPa, it provides substantial thrust for heavy-duty positioning tasks.
Because the adjustment mechanism functions strictly as a mechanical stop to set the retract end-position, it cannot hold a load without live air pressure. The extruded aluminum barrel incorporates sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if you decide to add a magnet later.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X350-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X350-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAIJ80X350-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×350 | 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 SAIJ80X350-100 Is Used
Product Size Changeover
Quickly adapt machinery for varying product lengths by dialing the rear stopper back, utilizing the full 100 mm adjustment window to avoid changing out the entire actuator.
Commissioning Fine-Tuning
Precisely set the exact end-of-stroke position during machine setup, trimming the nominal 350 mm travel down to 250 mm to perfectly meet the mechanical hard stop.
Adjustable Diverters
Control diverter arms on material handling lines where the required retraction distance fluctuates based on package dimensions, ensuring smooth routing without mechanical binding.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X350-100 the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than the 63 mm variant offers, which provides 2805 N of push force at 0.9 MPa. The 100 mm adjustment range is ideal for product changeovers, allowing operators to dial in a new end-stop during commissioning without physically swapping the cylinder or adding external stops. For load-holding requirements without continuous air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is not a locking mechanism.
When configuring an ISO 15552 replacement, verify the 350 mm stroke, 100 mm adjustment range, PT tapered port thread, carbon steel rod, and the SAIJ mounting set, which includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options. Since the stroke is 350 mm, ensure adequate external guidance to prevent excessive side-loading on the 25 mm rod and its M20x1.5 thread.
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 SAIJ80X350-100 FAQ
At an operating pressure of 0.9 MPa, this 80 mm bore cylinder generates 4523 N of push force and 4071 N of pull force. It operates efficiently at speeds between 30 and 800 mm/s.
The rear adjuster acts as an external stopper, allowing you to shorten the effective travel from the nominal 350 mm down to 250 mm. This provides a 100 mm window for fine-tuning the end position without replacing the cylinder.
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