This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X125-100 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X125-100 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 SIJ80X125-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 125mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X125-100, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X125-100 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with an 80 mm bore, 125 mm nominal stroke, and a G3/8 port. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable extend range of 25-125 mm. The stop sets the end position; it is not a load lock. This SKU lacks a magnet and cannot accept a magnetic switch. The exact drop-in replacement is the SAIJ80X125-100, retaining the same interface, force, and mounting.
At 0.5 MPa this bore delivers 2513 N push and 2268 N pull, rising to 4523 N push at 0.9 MPa. A computed buyer insight: safe working load is roughly 1508 N (60% of the 0.5 MPa push), equating to a 128 kg vertical lift with a 2:1 margin. Upgrading to the SAIJ family brings a better two-piece Y-shaped piston seal for lower start-up pressure, while reusing your FA, LB, and TC ISO 15552 mounts. A plain cylinder drifts on air loss; for held loads use an external rod lock or the SAIL/BSAI lock variants.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X125-100 |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAIJ80X125-100 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 SAIJ80X125-100 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. |
| ×125 | 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).
Feed-and-push stations needing on-site stroke tuning to handle varied product widths without swapping the entire cylinder body.
Sorting lines where the extend end position must be dialed in precisely to deflect different carton sizes onto specific lanes.
Palletizing cells requiring field adjustment of the extend stroke to accommodate fluctuating package heights safely.
To replace the discontinued SIJ80X125-100, order the drop-in SAIJ80X125-100, which preserves the 125 mm stroke, 100 mm adjust window, and G3/8 port. When sizing both ways, the adjacent 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N push at 0.5 MPa; this 80 mm bore provides 2513 N push at 0.5 MPa and 3518 N at 0.7 MPa. Choose the 100 mm adjust window if your field tuning requires cutting the extend stroke down to a 25 mm minimum. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; add external physical stops if detection is required. FA, LB, and TC mounting interfaces are fully reusable. For stroke lengths of 300 mm or greater, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SIJ80X125-100 is discontinued. The exact drop-in replacement is the SAIJ80X125-100. It shares the identical ISO 15552 interface, 80 mm bore, 125 mm nominal stroke, 100 mm adjust window, and G3/8 port. The SAIJ family also adds an upgraded two-piece Y-shaped piston seal for longer life and lower start-up pressure.
The double-acting single-rod force ratings are 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. The external stop screw provides a 100 mm adjust window, allowing you to shorten the extend stroke from the 125 mm maximum down to 25 mm. The 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 SAIJ80X125-100 replacement — usually within 7-8 hours.