This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X150-50SN — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X150-50SN 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 SIJ80X150-50SN
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50SN 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 SAIJ80X150-50SN, 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 → SAIJ80X150-50SN
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50SN
The AirTAC SIJ80X150-50SN 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 50 mm on-site, yielding a usable 100-150 mm extend range from the 150 mm nominal maximum. The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N push at 0.9 MPa. It features a G3/8 port, M20x1.5 rod thread, 36 mm adjustable cushions, and an NBR seal rated for -20 to +70 C. The exact drop-in replacement is the SAIJ80X150-50SN, matching the interface, bore, force, and mounting.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements 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), equating to a 128 kg vertical lift with a 2:1 margin. The -S magnet enables legacy CS1-B/DS1-B sensors. The stop screw sets the end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50SN Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-50SN |
| 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 SAIJ80X150-50SN 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 SAIJ80X150-50SN 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 SIJ80X150-50SN
| 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 SIJ80X150-50SN Is Used
Press Fit Tuning
Adjust the extend stop in 50 mm increments to set precise insertion depths for pressing bearings without machining custom spacers.
Variable Transfer Stops
Field-tune the actuator length from 150 mm down to 100 mm to accommodate changing package sizes on a sorting line.
Prototype Actuation
Dial in the exact extend position during fixture tryouts, avoiding the delay of ordering a non-standard stroke cylinder.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50SN with the SAIJ80X150-50SN
To replace the discontinued SIJ80X150-50SN, specify the drop-in SAIJ80X150-50SN, reusing your existing ISO 15552 FA, LB, or TC mounts. The 50 mm adjust window allows field-tuning the extend stroke down to 100 mm without external stops. If sizing both ways, the neighboring 63 mm bore yields 2182 N push at 0.7 MPa, while the 100 mm bore yields 5497 N push at 0.7 MPa. Retain the -S magnet for position sensing. For strokes of 300 mm or longer, carefully manage side loads to prevent excessive guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-50SN
- ✓ 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 SIJ80X150-50SN FAQ
Yes, the SIJ80X150-50SN is discontinued. The exact drop-in replacement is the SAIJ80X150-50SN. It shares the same ISO 15552 interface, 80 mm bore, 150 mm stroke, 50 mm adjust window, G3/8 port, and mounting options, but features 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, and 4523 N push at 0.9 MPa. The external stop screw offers a 50 mm adjustment window, allowing the extend stroke to be shortened from the 150 mm nominal maximum down to 100 mm on-site.
Related AirTAC SAI Cylinders
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