This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X500-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X500-20 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 SIJ80X500-20
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 500mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X500-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X500-20
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20
The AirTAC SIJ80X500-20 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 500 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 480-500 mm end position. The 80 mm bore uses a G3/8 port and M20x1.5 rod thread, delivering 2513 N push and 2268 N pull at 0.5 MPa. This SIJ model is discontinued; the exact drop-in replacement is the SAIJ80X500-20, matching the ISO 15552 mounting interface, bore, force, and adjust window.
The SAIJ upgrade features an improved two-piece Y-shaped 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 force), translating to a 128 kg vertical lift with a 2:1 margin. Note this SKU lacks a magnet (-S) and cannot take a sensor. The stop screw sets 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 SIJ80X500-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X500-20 |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAIJ80X500-20 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 SAIJ80X500-20 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 SIJ80X500-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SIJ80X500-20 Is Used
Variable Press Stroke
Trimming the extend stroke by up to 20 mm on-site allows precise positioning for light press operations without remounting the actuator.
Adjustable Diverter
Tuning the 480-500 mm end position lets operators alter a diverting gate reach on the fly to accommodate changing package sizes.
End-Stop Calibration
Field-adjusting the extend stop screw provides exact endpoint calibration for pallet stops when exact fixture dimensions vary.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20 with the SAIJ80X500-20
To replace the discontinued SIJ80X500-20, order the drop-in SAIJ80X500-20, which preserves the G3/8 port, 36 mm cushions, and ISO 15552 mounting. 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 push at 0.5 MPa. Choose the 20 mm adjust window if you need precise 480-500 mm extend tuning without external stops. Reuse FA, LB, or TC mounts. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For the 500 mm stroke, support side-load with external guides to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X500-20
- ✓ 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 SIJ80X500-20 FAQ
Yes, the SIJ80X500-20 is discontinued. The exact drop-in replacement is the SAIJ80X500-20. It matches the ISO 15552 interface, 80 mm bore, 500 mm stroke, 20 mm adjust window, G3/8 port, and mounting options.
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. The external stop screw window is 20 mm, allowing a usable extend stroke of 480-500 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X500-20
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