This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X80-100 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X80-100 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 SIJ80X80-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X80-100, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X80-100 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with an 80 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 0-80 mm extend window. The 80 mm bore uses a G3/8 port, a Ø25 mm rod with an M20x1.5 thread, and 36 mm adjustable air cushions. It delivers 2513 N push and 2268 N pull at 0.5 MPa. The exact drop-in replacement is the SAIJ80X80-100, matching the interface, force, and mounting.
The SAIJ upgrade uses an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; without live air the piston drifts. For safe sizing, the 60% safe working load is 1508 N, and vertical lift is about 128 kg with a 2:1 margin. This non-magnetic SKU cannot take a switch; for load holding use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X80-100 |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAIJ80X80-100 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 SAIJ80X80-100 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. |
| ×80 | 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).
A press operation needing adjustable material bend depth uses the 100 mm stop screw to tune the extend stroke on-site for different material thicknesses without changing tooling.
A packaging line handling mixed carton widths uses the external stop to vary the extend stroke, ensuring packages index precisely to the next belt without reprogramming controls.
An end-of-line pallet stop uses the on-site stroke trim to accommodate different pallet load heights, setting the exact stopping position mechanically for reliable placement.
To replace this discontinued SIJ80X80-100, order the drop-in SAIJ80X80-100, reusing your FA, LB, or TC ISO 15552 mounts. Size both ways: the 63 mm neighbor gives 1559 N push at 0.5 MPa, while the 100 mm bore gives 3927 N. The 100 mm adjust window allows field-tuning the extend stroke down to zero. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. The external stop sets end position but is never a lock; for held loads use an external rod lock or pilot-operated check valve. For any stroke over 300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
Yes, the SIJ80X80-100 is discontinued. The exact drop-in replacement is the SAIJ80X80-100, offering the same ISO 15552 interface, 80 mm stroke, 100 mm adjust window, G3/8 port, and 2513 N push force at 0.5 MPa. The SAIJ family also adds 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, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw provides a 100 mm adjust window, allowing the 80 mm extend stroke to be shortened on-site down to 0 mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X80-100 replacement — usually within 7-8 hours.