This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X50-30SN — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X50-30SN 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 SIJ80X50-30SN
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30SN 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 SAIJ80X50-30SN, 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 → SAIJ80X50-30SN
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30SN
The AirTAC SIJ80X50-30SN is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. Its external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 20-50 mm window from the 50 mm nominal maximum. The Ø80 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 SAIJ80X50-30SN, retaining the same interface, force, and adjustability.
The SAIJ successor incorporates an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, a 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. This -SN variant uses NBR seals (-20 to +70 C) and includes a piston magnet for legacy CS1-B/DS1-B switches. Note 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 SIJ80X50-30SN Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X50-30SN |
| 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 SAIJ80X50-30SN 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 SAIJ80X50-30SN 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 SIJ80X50-30SN
| 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 SIJ80X50-30SN Is Used
Diverter Gate Positioning
Trimming the extend stroke by up to 30 mm on-site allows exact alignment of diverter gates without machining custom spacers.
Variable Format Pushers
Adjust the 20-50 mm extend window to accommodate different carton sizes on a packaging line quickly and repeatably.
End-of-Line Stops
Fine-tune the stopping position of product on a conveyor by dialing the external stop screw to the exact required distance.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-30SN with the SAIJ80X50-30SN
To replace the discontinued SIJ80X50-30SN, order the exact drop-in SAIJ80X50-30SN, which preserves the 50 mm nominal stroke, 30 mm adjust window, G3/8 port, and 2513 N push force at 0.5 MPa. If resizing, the neighbouring Ø63 bore yields 1559 N push, while the Ø100 bore yields 3927 N push at 0.5 MPa. Select the 30 mm adjust window when you need precise 20-50 mm extend tuning. Mounting interfaces include Basic, FA, LB, and TC. The -S suffix confirms the magnet is present for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). For this 50 mm stroke, side-load is minimal, but for any stroke >=300 mm, guide the load to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X50-30SN
- ✓ 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 SIJ80X50-30SN FAQ
Yes, the SIJ80X50-30SN is discontinued. The exact drop-in replacement is the SAIJ80X50-30SN. It shares the identical ISO 15552 interface, 80 mm bore, 50 mm stroke, 30 mm adjust window, G3/8 port, and mounting options, but features an upgraded piston seal.
The double-acting single-rod cylinder delivers 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. The external stop screw shortens the extend stroke by up to 30 mm on-site, yielding a usable 20-50 mm window. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X50-30SN
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