Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 45mm 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
- Stroke45 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30
The AirTAC SAIJ80X45-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 15-45 mm, allowing you to dial back the 45 mm nominal stroke by up to 30 mm during machine commissioning without adding external stops. In this configuration, the piston rod utilizes SUS420J2 stainless steel for enhanced corrosion resistance, and the ports feature PT tapered threading.
Delivering a robust 2513 N of push force at 0.5 MPa (up to 4523 N at 0.9 MPa), this 80 mm bore cylinder operates at speeds between 30-800 mm/s. It integrates variable air cushions at both ends to manage deceleration. The extruded aluminum barrel includes sensor grooves on both sides, ready to host CMSE reed or DMSE electronic sensors if a magnet is added later. The mounting footprint supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 45 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 SAIJ80AX45-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 SAIJ80AX45-30 Is Used
Changeover Calibration
Dial in the exact retract distance within the 15-45 mm window when switching a packaging line to a slightly different carton size.
Clamp Positioning
Fine-tune the end-stop on a clamping fixture without machining new spacer blocks, ensuring optimal grip force on variable parts.
Machine Setup
Trim the effective stroke during initial commissioning to prevent over-travel and mechanical interference in tight assemblies.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-30 the Right Cylinder?
Choose this adjustable-stroke model when your application requires fine-tuning the retract end-position on the fly, such as accommodating minor product size variations on a changeover. If you need less force, stepping down to a 63 mm bore yields 1402 N of pull at 0.5 MPa, while moving up to a 100 mm bore provides 3681 N. Remember that the rear adjuster acts strictly as a mechanical stop to set travel; it does not hold the load without continuous air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 45 mm nominal stroke, 30 mm adjustment range, PT G3/8 port, and the specified SUS420J2 rod material. Because the stroke here is short, side-loading stress is minimal, but always ensure the load is guided to prevent rod binding.
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 SAIJ80AX45-30 FAQ
The rear adjuster screw lets you mechanically shorten the stroke by up to 30 mm. This creates a usable travel window of 15-45 mm, allowing precise end-position tuning at commissioning without swapping the cylinder.
At a 0.5 MPa operating pressure, it delivers 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N.
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