This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B06-SAI50X400 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B06-SAI50X400 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 B06-SI Battery Dedicated ISO Standard Cylinder B06-SI50X400 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 400mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B06-SAI50X400, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC B06-SI50X400 is a double-acting ISO 15552 profile cylinder dedicated to battery manufacturing. The B06- prefix marks it as a battery-industry variant of the SI50X400, mechanically identical to the standard unit. It delivers 982 N push and 825 N pull at 0.5 MPa through a G1/4 port, with a 400 mm stroke. This SI model is discontinued and replaced by the SAI50X400.
The SAI50X400 is a true drop-in replacement sharing the same ISO 15552 mounting interface, bore, stroke, output force, and port size. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. For sizing, the safe working load is roughly 589 N (about 60% of the 982 N push force), allowing a vertical lift of approximately 50 kg with a 2:1 margin.
| Model | Airtac B06-SI Battery Dedicated ISO Standard Cylinder B06-SI50X400 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B06-SAI50X400 |
| Bore size | Ø50 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B06-SAI50X400 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The B06-SAI50X400 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). |
|---|---|
| 50 | Bore size in mm. |
| ×400 | 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).
Drives the precise stacking mechanisms in prismatic cell assembly, utilizing the 982 N push force to press layers consistently.
Transfers battery modules along assembly lines with a 400 mm stroke, requiring external guides to manage the extended rod length safely.
Applies controlled clamping pressure for tab welding operations, where the 50 kg vertical lift capacity is ideal for positioning electrodes.
To replace the discontinued B06-SI50X400, order the SAI50X400. Confirm the ISO 15552 mounting interface, 50 mm bore, 400 mm stroke, G1/4 port (PT/G/NPT thread options), and your mounting accessory (LB, FA, TC, etc.). Because this SKU has no magnet, it cannot support position sensing; if needed, specify an SAI50X400S. For sizing, the 50 mm bore yields 982 N push at 0.5 MPa; if more force is needed, the 63 mm bore provides 1559 N. Note that a plain cylinder does not hold load on air loss—the cushion only decelerates. For holding, use an external rod lock or the SAIL/BSAI lock variants. With a 400 mm stroke, use external guides to prevent rod bending and side loads.
Replacement checklist
Yes, the B06-SI50X400 (the battery-manufacturing dedicated variant of SI50X400) is discontinued. The exact drop-in replacement is the SAI50X400. It is dimensionally interchangeable per ISO 15552, matching the 50 mm bore, 400 mm stroke, 982 N force, G1/4 port, and mounting interface.
The 50 mm bore features a G1/4 air port and M16x1.5 rod thread. Force output is 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, 1767 N push at 0.9 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the B06-SAI50X400 replacement — usually within 7-8 hours.