This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X1000-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X1000-20S 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 SIJ80X1000-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1000mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X1000-20S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X1000-20S 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 20 mm on-site, yielding a usable 980-1000 mm stroke. The 80 mm bore uses a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions. Force is 2513 N push and 2268 N pull at 0.5 MPa, reaching 4523 N at 0.9 MPa. The drop-in replacement is the SAIJ80X1000-20S, retaining the exact interface, magnet, and force.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Computed buyer insight: safe working load is roughly 1508 N (60% of the 2513 N push at 0.5 MPa), translating to a 128 kg vertical lift with a 2:1 margin. The stop sets end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X1000-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X1000-20S |
| Bore size | Ø80 mm |
| Stroke | 1000 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 SAIJ80X1000-20S 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 SAIJ80X1000-20S 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. |
| ×1000 | 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 alter the extend endpoint by up to 20 mm without changing the cylinder mount, accommodating varying package sizes on the fly.
Requires precise on-site adjustment of the final extend position to set a 980 mm workpiece stop, allowing quick changes for different material thicknesses.
Demands adjustable end-of-stroke positioning to fine-tune the 1000 mm extend distance for different pallet depths while maintaining high push force.
To replace the discontinued SIJ80X1000-20S, use the SAIJ80X1000-20S directly. When sizing both ways, the neighboring 63 mm bore yields 2182 N push at 0.7 MPa, while the 100 mm bore yields 5497 N push at 0.7 MPa. Choose the 20 mm adjust window if you need precise 980-1000 mm end-position tuning. Mounting options include Basic, FA, LB, and TC. The -S suffix means a piston magnet is present for CS1-B/DS1-B switches. Because the 1000 mm stroke is long, account for side-load and rod-bending by using external guides to prevent premature wear.
Replacement checklist
Yes, the SIJ80X1000-20S is discontinued. The exact drop-in replacement is the SAIJ80X1000-20S, offering the same ISO 15552 interface, 80 mm bore, 1000 mm stroke, 20 mm adjust window, G3/8 port, and mounting options.
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. The external stop screw window is 20 mm, allowing you to trim the extend stroke from 1000 mm down to 980 mm on-site. 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 SAIJ80X1000-20S replacement — usually within 7-8 hours.