This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X100-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X100-30 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 SIJ80X100-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X100-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ80X100-30 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 30 mm on-site, giving a usable 70-100 mm window from the 100 mm nominal maximum. The 80 mm bore features a Ø25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, G3/8 port, and 30-800 mm/s speed. It delivers 2513 N push and 2268 N pull at 0.5 MPa, rising to 4523 N push at 0.9 MPa.
The exact drop-in replacement is the SAIJ80X100-30, preserving the ISO 15552 interface, force, and mountings. The SAIJ upgrade utilizes a two Y-shaped one-way piston seal for low start-up pressure and long life. For sizing, a safe working load is ~1508 N (60% of the 0.5 MPa push), yielding a ~128 kg vertical lift with a 2:1 margin. Note this SKU lacks a magnet (-S) so it cannot take a switch, and the stop screw sets end position but is not a load lock.
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X100-30 |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80X100-30 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 SAIJ80X100-30 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. |
| ×100 | 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).
Light-duty press operations requiring exact end-position tuning, using the 30 mm adjust window to dial in the 70-100 mm extend stroke for delicate part seating.
Package sorting lines where the diverter stroke must be fine-tuned on-site to accommodate varying box sizes without re-mounting the actuator.
Warehousing pushers that need a variable physical end position to create specific spacing between items on a packing line.
To replace the discontinued SIJ80X100-30, order the drop-in SAIJ80X100-30, which matches the 80 mm bore, 100 mm nominal stroke, 30 mm adjust window, and G3/8 port. When sizing both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N push at 0.5 MPa. Choose the 30 mm adjust window if you need to tune the extend stroke down to 70 mm on-site. Mounting options include Basic, FA, LB, and TC. Because this specific SKU has no -S magnet, it cannot accept a magnetic switch; for position feedback you must select an -S model. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SIJ80X100-30 is discontinued. The exact drop-in replacement is the SAIJ80X100-30, which maintains the same ISO 15552 interface, 80 mm bore, 100 mm stroke, 30 mm adjust window, and G3/8 port. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
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, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw allows you to trim the extend stroke by up to 30 mm on-site, creating a 70-100 mm usable window. The stop sets the end position but is not a load lock; for held loads use an external rod lock or the SAIL/BSAI variants.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X100-30 replacement — usually within 7-8 hours.