This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X50-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X50-30S 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 SIJ80X50-30S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 50mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X50-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke50 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X50-30S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30S
The AirTAC SIJ80X50-30S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 50 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a 20-50 mm usable window. The 80 mm bore features a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions, delivering 2513 N push and 2268 N pull at 0.5 MPa. The exact drop-in replacement is the SAIJ80X50-30S, matching the interface, bore, force, and mounting.
The SAIJ successor retains the ISO 15552 mounting interface for direct reuse and adopts an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. Computed buyer insight: safe working load is roughly 1508 N (60% of the 0.5 MPa push), 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 sensors. Remember the stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X50-30S |
| Bore size | Ø80 mm |
| Stroke | 50 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 SAIJ80X50-30S 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 SAIJ80X50-30S 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 SIJ80X50-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 SIJ80X50-30S Is Used
Press Fit Tuning
Light-duty press operations needing precise endpoint adjustment to accommodate material thickness variations without re-plumbing the G3/8 air lines.
Diverter Gate Stroke
Sorting diverter gates on conveyors where the extend reach must be trimmed on-site by up to 30 mm to match varying package profiles accurately.
Adjustable End Stop
Warehousing push-off mechanisms requiring a 20-50 mm extend window to handle different container depths using a single ISO 15552 cylinder.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30S with the SAIJ80X50-30S
To replace the discontinued SIJ80X50-30S, order the drop-in SAIJ80X50-30S, which preserves the 50 mm nominal stroke, 30 mm adjust window, G3/8 port, and magnet. When sizing both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N push at 0.5 MPa; this 80 mm bore provides 2513 N push at 0.5 MPa and 4523 N at 0.9 MPa. Choose the 30 mm adjust window if your field assembly requires tuning the extend stroke down to 20 mm. Mounting options include Basic, FA, LB, and TC brackets. Because the stroke is under 300 mm, side-load rod deflection is minimal. The -S magnet enables position sensing, though SAIJ uses current AirTAC switches rather than legacy CS1-B/DS1-B units.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X50-30S
- ✓ 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 SIJ80X50-30S FAQ
Yes, the SIJ80X50-30S is discontinued. The exact drop-in replacement is the SAIJ80X50-30S. It shares the same ISO 15552 interface, 80 mm bore, 50 mm nominal stroke, 30 mm adjust window, G3/8 port, and mounting options, while adding an upgraded 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, 4523 N push at 0.9 MPa, and a 513 kgf theoretical max at 1.0 MPa. The external stop screw allows you to trim the extend stroke by up to 30 mm on-site, giving a 20-50 mm usable window. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
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