This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X80-100S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X80-100S 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 SIJ80X80-100S 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 SAIJ80X80-100S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X80-100S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. 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 from the 80 mm nominal maximum. The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa via a G3/8 port, with a 36 mm adjustable air cushion at each end. This unit includes a piston magnet (-S) for legacy CS1-B/DS1-B switches.
As the SIJ family is end-of-life, the exact drop-in replacement is the SAIJ80X80-100S, retaining the same interface, force, and mounting. The SAIJ upgrade introduces a 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 2513 N @0.5 MPa figure), translating to a 128 kg vertical lift with a 2:1 margin. Remember the stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X80-100S |
| 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 SAIJ80X80-100S 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 SAIJ80X80-100S 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).
Needs field stroke tuning to set precise material indentation. The 100 mm adjust window allows operators to dial the exact extend position on-site for different material thicknesses without swapping cylinders.
Requires altering the extend reach to accommodate changing box sizes on a line. Trimming the extend stroke by up to 100 mm provides the flexibility to push varying carton widths accurately.
Demands an external stop to set intermediate flow gate positions. The adjustable screw creates a hard mechanical end position for specific routing configurations, replacing complex multi-position setups.
To replace the discontinued SIJ80X80-100S, order the drop-in SAIJ80X80-100S, matching the 80 mm bore, 80 mm nominal stroke, 100 mm adjust window, and -S magnet. When sizing both ways, the neighboring 63 mm bore yields 1559 N push @0.5 MPa, while the 100 mm bore yields 3927 N push @0.5 MPa. The 100 mm adjust window allows on-site extend tuning down to 0 mm without changing mounts. Standard FA, LB, or TC ISO 15552 mounts reuse existing holes. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). For strokes >=300 mm, verify side-load guidance to prevent rod binding. The stop screw sets end position but does not lock; for load holding on air loss, specify an external rod lock, pilot-operated check valve, or SAIL/BSAI variant.
Replacement checklist
Yes, the SIJ80X80-100S is discontinued. The exact drop-in replacement is the SAIJ80X80-100S. It shares the same ISO 15552 interface, 80 mm bore, 80 mm stroke, 100 mm adjust window, G3/8 port, and mounting options, while adding an upgraded two Y-shaped one-way piston seal for longer life.
The 80 mm bore provides 2513 N push and 2268 N pull @0.5 MPa, 3518 N push @0.7 MPa, 4523 N push @0.9 MPa, and a 513 kgf max @1.0 MPa. The external stop screw window is 100 mm, allowing you to trim the 80 mm nominal extend stroke down to 0 mm on-site. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X80-100S replacement — usually within 7-8 hours.