This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X25-10S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X25-10S 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 SIJ80X25-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 25mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X25-10S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X25-10S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 25mm nominal stroke and a G3/8 port. An external stop screw lets you trim the extend stroke by up to 10mm on-site, yielding a usable 15-25mm end position. This bore delivers 2513N push and 2268N pull at 0.5MPa, rising to 3518N at 0.7MPa. The SIJ line is discontinued; the exact drop-in replacement is the SAIJ80X25-10S, matching the interface, force, and mounting.
The SAIJ upgrade introduces an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. Because push at 0.5MPa is 2513N, the computed safe working load is roughly 1508N (60% margin), translating to a 128kg vertical lift with a 2:1 safety factor. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B sensors. The external stop sets the end position but is not a load lock; for held loads use an external rod lock or the SAIL/BSAI variants.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X25-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X25-10S |
| Bore size | Ø80 mm |
| Stroke | 25 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 SAIJ80X25-10S 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 SAIJ80X25-10S 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. |
| ×25 | 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).
Ideal for clamping parts where the exact 15-25mm extend contact point must be tuned on-site to compensate for fixture tolerances.
Used in diverters requiring a short push stroke; the 10mm stop screw fine-tunes the flap position without changing the cylinder mount.
Perfect for pressing or seating delicate components, allowing operators to dial in the exact extend endpoint and avoid over-travel.
To replace the discontinued SIJ80X25-10S, order the drop-in SAIJ80X25-10S, which preserves the 80mm bore, 25mm stroke, 10mm adjust window, G3/8 port, and M20x1.5 rod thread. When sizing both ways, the neighboring 63mm bore yields 2182N push at 0.7MPa, while the 100mm bore yields 5497N at 0.7MPa. Choose the 10mm adjust window if you need precise 15-25mm extend tuning. Mounting options include FA, LB, and TC brackets. The -S suffix ensures a piston magnet for switch sensing. Because the nominal 25mm stroke is under 300mm, side-load rod deflection is minimal, but always verify guide alignment.
Replacement checklist
Yes, the SIJ80X25-10S is discontinued. The exact drop-in replacement is the SAIJ80X25-10S. It shares the identical ISO 15552 interface, 80mm bore, 25mm stroke, 10mm adjust window, G3/8 port, and mounting options, but features an upgraded piston seal.
The 80mm bore provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and 4523N at 0.9MPa. The external stop screw allows trimming the extend stroke by up to 10mm on-site, giving a usable 15-25mm stroke. 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 SAIJ80X25-10S replacement — usually within 7-8 hours.