This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X800-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X800-50 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 SIJ80X800-50
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X800-50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X800-50
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50
The AirTAC SIJ80X800-50 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the drop-in SAIJ80X800-50. It features an 80mm bore, G3/8 port, and a nominal 800mm stroke that you can trim by up to 50mm on-site via an external stop screw, yielding a usable extend window of 750-800mm. This stop sets the end position but is not a load lock. The SAIJ successor retains the exact interface, force, and mounting, while upgrading to a two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Force output matches the standard single-rod SAI: push 2513N and pull 2268N at 0.5MPa, scaling to 3518N at 0.7MPa and 4523N at 0.9MPa (theoretical max 513kgf at 1.0MPa). For sizing, a safe working load is roughly 1508N (about 60% of the 0.5MPa push figure), translating to a vertical lift capacity of about 128kg with a 2:1 margin. Note this SKU lacks a -S magnet and cannot accept a sensor; for load holding on air loss, use an external rod lock or the SAIL/BSAI variants, as cushions only decelerate.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X800-50 |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80X800-50 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 SAIJ80X800-50 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 SIJ80X800-50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SIJ80X800-50 Is Used
Material Diverting Gates
Tune the extend stroke by up to 50mm on-site to align pneumatic diverting flaps precisely with varying package widths on the line without machining new stops.
Adjustable Forming Presses
Dial in the exact 750-800mm end position for different tooling heights, utilizing the external stop screw to set the hard mechanical limit for the pressing operation.
Variable-Height Loading Stops
Field-adjust the extend stroke to act as a physical end stop for pallets of differing depths, ensuring accurate placement without repositioning the cylinder.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-50 with the SAIJ80X800-50
To replace the discontinued SIJ80X800-50, order the exact drop-in SAIJ80X800-50, keeping the 80mm bore, 800mm nominal stroke, 50mm adjust window, and G3/8 port. When sizing both ways, the neighbouring 63mm bore yields 2182N push at 0.7MPa, while the 100mm bore provides 5497N at 0.7MPa. Choose the 50mm adjust window if you need on-site extend trimming between 750-800mm; remember the external stop sets end position and is not a lock. Mounting options (Basic, FA, LB, TC) reuse existing ISO 15552 interface dimensions. Because this SKU has no -S magnet, it cannot take a sensor. Finally, at 800mm stroke, mind the side-load and rod-bending risks—use external guides to prevent premature wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X800-50
- ✓ 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 SIJ80X800-50 FAQ
Yes, the SIJ80X800-50 is discontinued. The exact drop-in replacement is the SAIJ80X800-50. It shares the same ISO 15552 interface, 80mm bore, 800mm stroke, 50mm adjust window, G3/8 port, and mounting options, but features an upgraded two Y-shaped one-way piston seal for longer life.
The double-acting single-rod force is 2513N push / 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and 4523N push at 0.9MPa (max 513kgf at 1.0MPa). The external stop screw provides a 50mm adjust window, allowing you to shorten the extend stroke from the 800mm maximum down to 750mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
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