This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B06-SAI40X400S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B06-SAI40X400S 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-SI40X400S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 400mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B06-SAI40X400S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC B06-SI40X400S is a discontinued double-acting ISO 15552 profile cylinder. The B06- prefix designates it as a battery-manufacturing dedicated variant, mechanically identical to the base SI40X400S. Delivering 628 N push force at 0.5 MPa through a 40 mm bore, it is replaced drop-in by the SAI40X400S.
The SAI upgrade features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. It retains the G1/4 port and M12x1.25 thread. The safe working load is roughly 377 N (about 32 kg vertical lift with a 2:1 margin). The SI family lacked lock variants now available in SAIL and BSAI.
| Model | Airtac B06-SI Battery Dedicated ISO Standard Cylinder B06-SI40X400S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B06-SAI40X400S |
| Bore size | Ø40 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The B06-SAI40X400S 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The B06-SAI40X400S 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). |
|---|---|
| 40 | 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 stacking of prismatic cells in module assembly, using the 400 mm stroke to feed layers and the 628 N push force to ensure tight pack compression.
Transfers battery tabs through welding stations, where the 377 N safe working load provides reliable positioning without deflecting the thin copper or aluminum foils.
Moves battery packs between conveyors, utilizing the ISO 15552 mounting interface for easy fixture integration and the 30-800 mm/s speed range for rapid cycling.
To replace this discontinued cylinder, order the SAI40X400S. It is dimensionally interchangeable per ISO 15552, matching the 40 mm bore, 400 mm stroke, G1/4 port, and mounting fixtures. Because this is a 400 mm stroke, use external guides to prevent rod bending and side-load wear. If your battery line requires load holding on air loss, a plain cylinder drifts; use the SAIL lock or BSAI clamp-lock variant, or an external pilot check valve. If sizing up or down, neighbouring bores are 32 mm and 50 mm.
Replacement checklist
Yes, the B06-SI40X400S is discontinued. The exact drop-in replacement is the SAI40X400S. It shares the identical ISO 15552 mounting interface, 40 mm bore, 400 mm stroke, force, and G1/4 port. The B06- prefix simply marks it as a battery-manufacturing dedicated variant, and the SAI replacement matches it mechanically.
This double-acting cylinder has a 16 mm rod, M12x1.25 thread, 27 mm cushion, and operates at 30-800 mm/s. Force ratings are: push 628 N and pull 528 N at 0.5 MPa, push 879 N at 0.7 MPa, push 1130 N at 0.9 MPa, and a theoretical max of 128 kgf at 1.0 MPa. The -S suffix means it has a piston magnet for CS1-B/DS1-B switches.
Send us the quantity and destination. We confirm price, stock and lead time on the B06-SAI40X400S replacement — usually within 7-8 hours.