This model is discontinued
AirTAC has phased out the MAL series. You can still order this code here: we ship the direct replacement MBL40X550-S-U, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 MAL40X550-S-U (Discontinued) -> MBL40X550-S-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 direct replacement is the MBL40X550-S-U, which matches its bore, stroke, force and mounting.
The AirTAC MAL40X550-S-U is a discontinued double-acting aluminum mini round cylinder with a 40mm bore and a 550mm made-to-order stroke. It delivers a robust 628N push and 528N pull at 0.5MPa. The direct replacement is the MBL40X550-S-U, which matches the original force, G1/4 port, and U flat-end rear cover. Because the 550mm length exceeds the 500mm standard maximum, this unit was produced as a special order.
This legacy SKU features a built-in -S magnet for position sensing. On the older MAL body, which uses threaded front and back covers, this magnet pairs with CS1-M or DS1-M reed switches. The modern MBL40X550-S-U upgrades to a riveted rolling-packed body and requires current CMSG, DMSG, or EMSG sensors. Both generations rely on a fixed rubber bumper at the stroke ends rather than an adjustable air cushion, and neither can hold a load if air pressure drops.
| Model | AirTAC MAL40X550-S-U (Discontinued) -> MBL40X550-S-U |
|---|---|
| Series | MAL aluminum-barrel mini round cylinder (discontinued) |
| Replacement | MBL40X550-S-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-S-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-S-U produces the same force from the same bore. 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.
Uses the 628N push force at 0.5MPa to shove heavy pallets sideways onto a secondary packaging line, taking advantage of the long 550mm travel.
Cycles a heavy machine tool safety door, where the U flat-end cover provides a rigid rear mount and the 880N thrust at 0.7MPa overcomes slide resistance.
Raises a stack of flat corrugated cartons out of a hopper, requiring the 550mm stroke and the 528N pull force to retract the 16mm rod under load.
To replace this cylinder, order the MBL40X550-S-U. Confirm your 40mm bore, 550mm non-standard stroke, M12x1.25 rod thread, and the U flat-end back cover. Because this SKU includes the -S magnet, you must also upgrade your position switches from the legacy CS1-M / DS1-M family to the current CMSG / DMSG / EMSG series used by the MBL. The port thread form defaults to PT.
If you need to adjust the force, stepping down to a 32mm bore yields 402N push at 0.5MPa, while no larger mini round bore exists in this family (40mm is the maximum). At 550mm, the 16mm rod is highly susceptible to bending under lateral stress; use an external guide rail or a pivot mount to absorb side loads. If end-of-stroke impact is an issue, the fixed rubber bumper cannot be tuned—consider the current-line MBLC for adjustable air cushioning. Finally, this cylinder will drift if air is lost; add a pilot-operated check valve for position holding.
Upgrade checklist
Yes, the MAL series is end-of-life. The direct replacement is the MBL40X550-S-U. It provides identical bore, 550mm stroke, output force, G1/4 port, and U flat-end mounting. You simply order the MBL equivalent, but note that your old CS1-M / DS1-M sensors must be swapped to CMSG / DMSG / EMSG switches.
At 0.5MPa it provides 628N push and 528N pull. At 0.7MPa the push force is 880N, with a theoretical maximum of 128kgf at 1.0MPa. It uses a fixed rubber bumper for end-of-stroke deceleration, not an adjustable cushion. If you need adjustable air cushioning, you must move to the MBLC variant on the current line.
Genuine AirTAC parts produced by AirTAC factory.
The MBL40X550-S-U replaces this model 1:1.
MBL replacements are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Tell us the quantity and destination — we quote the direct MBL40X550-S-U replacement with price, stock and lead time, usually within 7-8 hours.