This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X350-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X350-30S in place of this model. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 350mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X350-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X350-30S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S
The AirTAC SIJ80X350-30S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 320-350 mm stroke from the 350 mm nominal maximum. This 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa via its G3/8 port. The exact drop-in replacement is the SAIJ80X350-30S, retaining the interface, M20x1.5 rod thread, and 36 mm cushions.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. For sizing, the safe working load is roughly 1508 N (60% of the 2513 N push at 0.5 MPa), translating to a 128 kg vertical lift with a 2:1 margin. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X350-30S |
| 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 standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ80X350-30S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAIJ80X350-30S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S Is Used
Variable Pitch Pushing
Tuning the extend stroke by up to 30 mm on-site allows a single 80 mm bore cylinder to push parts to varying distances without swapping the entire actuator.
Adjustable Diverter Gate
Field-trimming the extend endpoint lets operators reposition a diverting mechanism precisely along the line to handle changing package sizes.
End-Stop Calibration Station
The external stop screw provides a hard mechanical end position for calibrating pallet stops, adjustable within the 320-350 mm window.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S with the SAIJ80X350-30S
To replace the discontinued SIJ80X350-30S, map directly to the SAIJ80X350-30S drop-in, keeping the 350 mm stroke, 30 mm adjust window, and -S magnet. When sizing both ways, the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N push at 0.5 MPa. Choose the 30 mm adjust window if your extend endpoint needs field tuning within 320-350 mm. Mounting options include Basic, FA, LB, and TC. Because the 350 mm stroke is long, account for side-load and rod-bending forces by using external guides to prevent premature wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X350-30S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-30S FAQ
Yes, the SIJ80X350-30S is discontinued. The exact drop-in replacement is the SAIJ80X350-30S. It shares the same ISO 15552 interface, 80 mm bore, 350 mm stroke, 30 mm adjust window, G3/8 port, and mounting options, but adds an upgraded two Y-shaped one-way piston seal.
The 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N push at 0.9 MPa, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw window is 30 mm, allowing the extend stroke to be shortened from 350 mm down to 320 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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