This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B06-SAI50X125S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B06-SAI50X125S 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-SI50X125S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 125mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B06-SAI50X125S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC B06-SI50X125S is a discontinued double-acting ISO 15552 profile cylinder. The B06- prefix marks it as a battery-manufacturing dedicated variant, though mechanically it is identical to the base SI50X125S. Delivering 982 N push force at 0.5 MPa through a 50 mm bore and 125 mm stroke, it is replaced by the SAI50X125S.
The SAI50X125S is a drop-in upgrade retaining the exact ISO 15552 mounting interface, G1/4 port, and 30 mm cushions. It features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. For battery module handling, expect a safe working load near 589 N (about 60% of the 982 N figure) and a vertical lift capacity around 50 kg with a 2:1 margin. The original -S magnet supports legacy CS1-B/DS1-B sensors.
| Model | Airtac B06-SI Battery Dedicated ISO Standard Cylinder B06-SI50X125S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B06-SAI50X125S |
| Bore size | Ø50 mm |
| Stroke | 125 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-SAI50X125S 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-SAI50X125S 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. |
| ×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).
Drives precision stacking mechanisms in prismatic cell assembly, utilizing the 125 mm stroke to press and align battery layers with a 982 N push force.
Transfers battery modules along conveyor lines, where the ISO 15552 mounting interface allows seamless integration into existing production fixtures.
Applies controlled clamping force for busbar and tab welding operations, maintaining consistent contact pressure across the battery pack.
To replace this cylinder, order the SAI50X125S. Confirm the ISO 15552 interface, 50 mm bore, 125 mm stroke, G1/4 port (PT/G/NPT thread), and mounting accessory match your battery line fixtures. The -S magnet equates to legacy CS1-B/DS1-B sensors; the SAI uses current AirTAC switches. For sizing, the 63 mm bore yields 1559 N push at 0.5 MPa, while the 40 mm bore yields 628 N. Note that a plain cylinder drifts on air loss as the cushion only decelerates; for battery stack lifting, use the SAIL lock or BSAI clamp-lock variant, or an external pilot check valve. At 125 mm stroke, rod bending is minimal, but always guide side loads.
Replacement checklist
Yes, the B06-SI50X125S is discontinued. The exact drop-in replacement is the SAI50X125S. It shares the identical ISO 15552 mounting interface, 50 mm bore, 125 mm stroke, output force, G1/4 port, and -S magnet, fitting existing battery manufacturing fixtures without modification.
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, with a theoretical max of 200 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the B06-SAI50X125S replacement — usually within 7-8 hours.