This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X320-75S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X320-75S 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 SIJ80X320-75S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X320-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 320mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X320-75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke320 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X320-75S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X320-75S
The AirTAC SIJ80X320-75S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 320 mm nominal stroke and a built-in piston magnet. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable extend range of 245-320 mm. The stop sets the end position; it is not a load lock. This 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, features a 25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, and a fixed G3/8 port. The exact drop-in replacement is the SAIJ80X320-75S.
The SAIJ successor shares the same ISO 15552 mounting interface, bore, stroke, adjust window, and force, but upgrades to 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 (about 60 percent of the 2513 N push at 0.5 MPa), translating to a 128 kg vertical lift with a 2:1 margin. A plain cylinder drifts on air loss; the cushion only decelerates near stroke end. For held loads, use an external rod lock or the SAIL/BSAI lock variants.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X320-75S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X320-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X320-75S |
| Bore size | Ø80 mm |
| Stroke | 320 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 SAIJ80X320-75S 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 SAIJ80X320-75S 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 SIJ80X320-75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×320 | 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 SIJ80X320-75S Is Used
Variable-depth forming press
Dial in the exact bottoming extend stroke between 245 and 320 mm on-site to accommodate different material thicknesses without swapping the entire cylinder.
Adjustable transfer diverter
Tune the extend stop by up to 75 mm to alter the pusher reach for varying package widths on a packaging line, ensuring precise routing.
Tiered pallet positioning
Set the extend end position dynamically to place items at different vertical tiers, using the external stop screw to define the exact 245-320 mm reach.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X320-75S with the SAIJ80X320-75S
To replace the discontinued SIJ80X320-75S, order the drop-in SAIJ80X320-75S, keeping the 320 mm maximum stroke and 75 mm adjust window. If you need to resize, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Choose the 75 mm adjust window if your final extend position needs on-site tuning between 245 and 320 mm. Mounting is fully reusable across the ISO 15552 interface using Basic, FA, LB, or TC attachments. The -S suffix confirms a piston magnet for legacy CS1-B/DS1-B switches; the SAIJ replacement uses current AirTAC switches. Because the 320 mm stroke is long, account for rod-bending moments and use external guides to minimize side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X320-75S
- ✓ 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 SIJ80X320-75S FAQ
Yes, the SIJ80X320-75S is discontinued. The exact drop-in replacement is the SAIJ80X320-75S, which matches the 80 mm bore, 320 mm stroke, 75 mm adjust window, G3/8 port, and ISO 15552 mounting interface. The SAIJ family also adds an upgraded two Y-shaped one-way piston seal for longer life.
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 allows you to trim the extend stroke by up to 75 mm on-site, giving a usable extend range of 245-320 mm. The stop sets end position and is not a load lock; speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
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