This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X500-10 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X500-10 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.

The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-10 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 SAIJ80X500-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X500-10 is a discontinued double-acting, single-rod ISO 15552 adjustable-stroke cylinder with a 500 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 490-500 mm window. The 80 mm bore features a G3/8 port, 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 drop-in replacement is the SAIJ80X500-10, matching the interface, bore, force, and mounting.
The SAIJ successor incorporates an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, the safe working load is roughly 1508 N (60% of the 0.5 MPa push), translating to a 128 kg vertical lift with a 2:1 margin. Note this non-magnetic SKU cannot take a switch. The stop screw sets end position but is not a lock; use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X500-10 |
| 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 SAIJ80X500-10 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAIJ80X500-10 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.
| 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).
Final insertion depth requires exact on-site tweaking. The 10 mm stop window lets operators dial in the 490-500 mm extend position without re-mounting the actuator.
Adjusting a diverter arm to accommodate varying package sizes on the fly. The external stop screw provides a hard, repeatable end position for the 80 mm bore.
Fine-tuning a pallet stop gate's extension to match different pallet footprints. The adjustable stroke allows precise physical limits without changing PLC logic.
To replace the discontinued SIJ80X500-10, order the SAIJ80X500-10 drop-in (insert A after S), retaining the ISO 15552 mounting footprint. Size both ways using 0.5 MPa force: the 63 mm bore yields 1559 N push / 1402 N pull, while the 100 mm bore yields 3927 N push / 3681 N pull. Choose the 10 mm adjust window when you need minor on-site extend tuning (490-500 mm). Reuse FA, LB, or TC mounts. As this SKU lacks the -S magnet, it cannot accept a sensor. For the 500 mm stroke, support the rod to prevent bending and use external guides to manage side loads.
Replacement checklist
Yes, the SIJ80X500-10 is discontinued. The exact drop-in replacement is the SAIJ80X500-10. It shares the identical ISO 15552 interface, 80 mm bore, 500 mm stroke, G3/8 port, and mounting options, but adds an upgraded 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 (max 513 kgf at 1.0 MPa). The external stop screw provides a 10 mm trim window, shortening the extend stroke from 500 mm down to 490 mm. This stop sets end position only; it is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X500-10 replacement — usually within 7-8 hours.