This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B06-SAUD40X125S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B06-SAUD40X125S in place of this model. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC Airtac B06-SUD Battery Dedicated Standard Cylinder B06-SUD40X125S is a double-acting profile-type standard cylinder with a Ø40mm bore and 125mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the B06-SAUD40X125S, which matches its bore, stroke, force and mounting.
The AirTAC B06-SUD40X125S is a discontinued double-acting double-rod profile cylinder. The B06- prefix marks it as a battery-manufacturing dedicated variant of the base SUD40X125S, mechanically identical with a 40mm bore, 125mm stroke, 1/4" port, and M12x1.25 rod thread. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal both ways (528N at 0.5MPa). It is replaced drop-in by the SAUD40X125S.
The SAUD successor retains the exact bore, stroke, force, port, and FA/LB mounting, but upgrades to current CMSG/DMSG/EMSG sensors (this legacy unit used CS1-B/DS1-B switches). The rear protruding rod is ideal for driving two tools or carrying a sensor cam without anti-rotation guides. For sizing, the 528N force at 0.5MPa yields a safe working load of 317N and a vertical lift capacity of 27kg with a 2:1 margin.
| Model | Airtac B06-SUD Battery Dedicated Standard Cylinder B06-SUD40X125S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | B06-SAUD40X125S |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The B06-SAUD40X125S carries the same 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-SAUD40X125S 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.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Drives precision stacking mechanisms in cell assembly lines, utilizing the equal both ways force to press and return battery layers consistently.
Uses the protruding rear rod to carry a secondary sensor cam or drive a second tab welding head, keeping cycle times synchronized.
Transfers battery modules on pack assembly conveyors where the compact profile barrel saves space compared to standard cylinders.
To replace the B06-SUD40X125S, order the drop-in SAUD40X125S, which matches the 40mm bore, 125mm stroke, 1/4" port, and FA/LB mounting exactly. If upgrading to a neighbouring bore, size both ways using the equal push/pull force: the 32mm bore yields 345N at 0.5MPa, while the 50mm bore yields 825N. A double-rod cylinder is the right choice when you need equal force in both directions or require a rear rod to mount a sensor cam. Because this unit has the -S magnet, you must change from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. For this 125mm stroke, ensure the side-load is kept within the manufacturer's allowable limits. Note that air cushions only decelerate the piston near stroke end; an external rod lock is required to hold loads on air loss.
Replacement checklist
Yes, the B06-SUD40X125S is discontinued. The exact drop-in replacement is the SAUD40X125S. The B06- prefix simply marks it as a battery-manufacturing dedicated variant, so the SAUD replacement matches the 40mm bore, 125mm stroke, 1/4" port, and force exactly. You only need to upgrade the sensors from CS1-B/DS1-B to CMSG/DMSG/EMSG.
Because it is a double-rod cylinder, force is equal both ways: 528N at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa. It operates at 30-800 mm/s, features a 1/4" port, and has adjustable 21mm air cushions at each end. It does not hold loads without live air.
Send us the quantity and destination. We confirm price, stock and lead time on the B06-SAUD40X125S replacement — usually within 7-8 hours.