This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B06-SAI40X250 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B06-SAI40X250 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-SI40X250 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø40mm bore and 250mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B06-SAI40X250, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC B06-SI40X250 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 SI40X250. Delivering 628 N push and 528 N pull at 0.5 MPa through a 16 mm rod and G1/4 port, AirTAC replaced this legacy unit with the SAI40X250.
The SAI40X250 is a true drop-in replacement: identical 40 mm bore, 250 mm stroke, port, and ISO 15552 mounting interface. The upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Without a -S suffix, this SKU cannot take a magnetic switch (legacy sensors were CS1-B/DS1-B). For safe sizing, expect a working load around 377 N, or a 32 kg vertical lift with a 2:1 margin.
| Model | Airtac B06-SI Battery Dedicated ISO Standard Cylinder B06-SI40X250 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | B06-SAI40X250 |
| Bore size | Ø40 mm |
| Stroke | 250 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-SAI40X250 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-SAI40X250 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. |
| ×250 | 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).
Applies the 628 N push force at 0.5 MPa to align and press battery cells during module stacking, utilizing the 250 mm stroke for clearance.
Moves electrode tabs or separators on the production line, with the 30-800 mm/s speed range matching high-throughput battery assembly.
Sorts battery packs at the end of line using the ISO 15552 mounting interface for rigid fixture attachment on conveyor diverter arms.
To replace this discontinued cylinder, order the SAI40X250. Verify your ISO 15552 mounting fixture (LB, FA, TC, etc.), the 250 mm stroke, and the G1/4 port. Because this SKU lacks the -S magnet, it cannot accept position sensors; if sensing is needed, specify an SAI40X250S. The 40 mm bore yields 628 N push at 0.5 MPa—size up to a 50 mm bore if loads exceed 377 N, or down to 32 mm for lighter duties. At 250 mm stroke, ensure guide rails carry side loads to prevent rod bending. Note that standard cylinders drift without air; for battery-pack holding, use the SAIL lock, BSAI clamp-lock, or external pilot check valves. The SAI family also adds SAIF integrated valves (bores 32-100) the SI lacked.
Replacement checklist
Yes, the B06-SI40X250 (battery-manufacturing dedicated SI40X250) is discontinued. The exact drop-in replacement is the SAI40X250. It features the same ISO 15552 mounting interface, 40 mm bore, 250 mm stroke, 628 N force, and G1/4 port, fitting existing fixtures perfectly.
The 40 mm bore uses a G1/4 port. Theoretical forces are: 628 N push and 528 N pull at 0.5 MPa; 879 N push at 0.7 MPa; 1130 N push at 0.9 MPa; with a maximum force of 128 kgf at 1.0 MPa. It operates at 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the B06-SAI40X250 replacement — usually within 7-8 hours.