This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X800-75S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X800-75S 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 SIJ80X800-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X800-75S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X800-75S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, discontinued and replaced drop-in by the SAIJ80X800-75S. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 725-800 mm window from the 800 mm maximum. It features a 25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, a G3/8 port, and a -S piston magnet for legacy CS1-B/DS1-B switches. The stop sets end position but is not a load lock.
At 80 mm bore, push force is 2513 N and pull is 2268 N at 0.5 MPa, reaching 4523 N at 0.9 MPa. A safe working load is roughly 1508 N (60% of the 0.5 MPa push), giving a 128 kg vertical lift with a 2:1 margin. The SAIJ upgrade adds a two-piece Y-shaped piston seal for lower start-up pressure and longer life. Because it drifts on air loss, use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X800-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X800-75S |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80X800-75S 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 SAIJ80X800-75S 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. |
| ×800 | 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).
Tune the 75 mm extend stop on-site to set precise pressing depths for different assembly parts without changing the cylinder.
Field-adjust the extend stroke to act as a diverter or stop for varying package lengths on a packaging line.
Trim the extend stroke by up to 75 mm to accommodate different pallet heights or load profiles dynamically.
To replace the discontinued SIJ80X800-75S, order the exact drop-in SAIJ80X800-75S, reusing your existing ISO 15552 FA, LB, or TC mounts and G3/8 port. The 75 mm adjust window lets you tune the extend end-position on-site (725-800 mm). If sizing both ways, the 63 mm neighbor provides 2182 N push at 0.7 MPa, while the 100 mm bore yields 5497 N. The -S suffix provides a piston magnet for position sensing. For the 800 mm stroke, support the rod against side-load bending and use external guides to prevent binding.
Replacement checklist
Yes, the SIJ80X800-75S is discontinued. The exact drop-in replacement is the SAIJ80X800-75S, matching the 80 mm bore, 800 mm stroke, 75 mm adjust window, G3/8 port, and ISO 15552 mounting interface.
The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N at 0.7 MPa, and 4523 N at 0.9 MPa. The external stop screw provides a 75 mm adjustment window, allowing a usable extend stroke of 725-800 mm.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X800-75S replacement — usually within 7-8 hours.