This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBL40X550-U — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBL40X550-U in place of this model. The MBL replacement upgrades to a riveted rolling-packed body and the current CMSG / DMSG / EMSG sensor switches (the MAL used CS1-M / DS1-M).
The AirTAC AirTAC MAL40X550-U (Discontinued) → MBL40X550-U is a double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 550mm stroke, G1/4 air ports and a fixed rubber bumper. This model is discontinued — the drop-in replacement is the MBL40X550-U, which matches its bore, stroke, force and mounting.
The AirTAC MAL40X550-U is a discontinued double-acting aluminum mini round cylinder with a 40mm bore and a 550mm stroke. Because 550mm exceeds the 500mm standard maximum, this unit was a made-to-order non-standard stroke. It delivers a robust 628N push and 528N pull at 0.5MPa, utilizing a G1/4 port and an M12x1.25 rod-end thread. The exact drop-in replacement is the MBL40X550-U, matching the bore, stroke, output force, port, and flat-end rear cover.
This specific SKU features a U flat-end back cover for rigid mounting, and because it lacks the -S code, it cannot accept a position sensor. The legacy MAL body uses threaded front and back covers, whereas the modern MBL replacement uses a riveted rolling-packed body. Both rely on a fixed rubber bumper for end-of-stroke damping, but if adjustable cushioning is required, you must step up to the current MBLC variant.
| Model | AirTAC MAL40X550-U (Discontinued) → MBL40X550-U |
|---|---|
| Series | MAL aluminum-barrel mini round cylinder (discontinued) |
| Replacement | MBL40X550-U |
| Bore size | Ø40 mm |
| Stroke | 550 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.1 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MAL datasheet (now discontinued). The MBL40X550-U 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 MBL40X550-U 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.
| MAL | Aluminum-barrel mini round cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×550 | Stroke length in mm. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MBL uses CMSG/DMSG/EMSG). |
| CA / U / CM | Back cover: CA pivot, U flat-end or CM round-end. |
Replacement mapping: MAL → MBL, MSAL → MSBL, MTAL → MTBL, MALD → MBLD, MALJ → MBLJ.
Drives the flap-folding arm on a continuous packaging line, using the 628N push force at 0.5MPa to cleanly fold heavy corrugated cardboard during the 550mm extension.
Acts as the main ejector for a bar feeder, utilizing the 528N pull force at 0.5MPa to retract the stock guide across the 550mm stroke, fitting tight machinery footprints.
Pushes mismatched product cases off a high-speed sorter line, where the 128kgf maximum theoretical force handles heavy loads and the flat-end U cover provides rigid rear mounting.
To replace the MAL40X550-U, order the MBL40X550-U. Verify your 40mm bore, 550mm non-standard stroke, PT tapered port thread, and the U flat-end back cover. Because this SKU has no -S magnet, it cannot support a sensor; if you need position detection, upgrade to an MBL40X550-S-U and switch to the modern CMSG/DMSG/EMSG switch family, as the older CS1-M/DS1-M sensors are obsolete. The 40mm bore provides 628N push at 0.5MPa; if you need less force, step down to the 32mm bore (402N push), or step up to a larger profile cylinder if 128kgf at 1.0MPa is insufficient.
At 550mm, this stroke demands strict side-load management. The 16mm carbon-steel rod with 20um hard chrome plating has low side-load tolerance, so you must use an external guide rail to prevent rod bending. Remember that the fixed rubber bumper only softens the stroke end and does not hold the load if air pressure drops; for position holding, install an external rod lock or pilot-operated check valve.
Upgrade checklist
Yes, the MAL40X550-U is discontinued. The exact drop-in replacement is the MBL40X550-U, offering the same 40mm bore, 550mm stroke, 628N push force, G1/4 port, and U flat-end back cover. The modern MBL uses a riveted body instead of threaded covers, but mounts identically.
At 0.5MPa it provides 628N push and 528N pull, 880N push at 0.7MPa, and a maximum theoretical force of 128kgf at 1.0MPa. Because this specific SKU lacks the -S magnet code, it cannot accept a position sensor; you must order an -S variant and use CMSG/DMSG/EMSG switches.
Genuine AirTAC parts produced by AirTAC factory.
The MBL40X550-U replaces this model 1:1.
MBL replacements usually ship in 3-4 days.
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Tell us the quantity and destination — we quote the drop-in MBL40X550-U replacement with price, stock and lead time, usually within 7-8 hours.