This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X150-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X150-20S 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 SIJ80X150-20S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X150-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X150-20S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20S
The AirTAC SIJ80X150-20S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 150 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 130-150 mm window. The 80 mm bore uses a G3/8 port, a 25 mm rod, M20x1.5 rod thread, and 36 mm adjustable cushions. It delivers 2513 N push and 2268 N pull at 0.5 MPa, reaching 4523 N at 0.9 MPa.
The exact drop-in replacement is the SAIJ80X150-20S, sharing the same interface, force, and adjust window. The SAIJ upgrade introduces a 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 0.5 MPa push), yielding a 128 kg vertical lift with a 2:1 margin. Note 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 SIJ80X150-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-20S |
| Bore size | Ø80 mm |
| Stroke | 150 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 SAIJ80X150-20S 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 SAIJ80X150-20S 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 SIJ80X150-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SIJ80X150-20S Is Used
Press Fit Tuning
Trimming the extend stroke by up to 20 mm on-site allows precise positioning of pressing heads without machining hard stops.
Divert Stop Adjustment
Field-adjusting the 130-150 mm extend window lets operators fine-tune divert stop positions on the fly for varying package sizes.
Pallet Positioning
External stop screw adjustment provides quick changes to pallet contact points, ensuring accurate placement without reprogramming.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20S with the SAIJ80X150-20S
To replace the discontinued SIJ80X150-20S, specify SAIJ80X150-20S directly—it is a drop-in match for the ISO 15552 mounting interface, 150 mm stroke, 20 mm adjust window, and G3/8 port. 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; this 80 mm bore provides 2513 N. Choose the 20 mm adjust window if your application needs field tuning of the extend end-position within a 130-150 mm range. Standard FA, LB, and TC mountings reuse existing ISO 15552 holes. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. For stroke lengths of 300 mm or more, verify side-load limits to prevent excessive guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-20S
- ✓ 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 SIJ80X150-20S FAQ
Yes, the SIJ80X150-20S is discontinued. The exact drop-in replacement is the SAIJ80X150-20S. It shares the same ISO 15552 interface, 80 mm bore, 150 mm stroke, 20 mm adjust window, G3/8 port, and mounting options, while adding an upgraded two Y-shaped one-way piston seal.
The 80 mm bore 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 provides a 20 mm adjust window, allowing the extend stroke to be shortened from the 150 mm maximum down to 130 mm. This stop sets the end position and is not a load lock.
Related AirTAC SAI Cylinders
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