This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B05-MBL20X400S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B05-MBL20X400S 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).
Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S
The AirTAC Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S is a double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 400mm stroke, G1/8 air ports and a fixed rubber bumper. This model is discontinued — the drop-in replacement is the B05-MBL20X400S, which matches its bore, stroke, force and mounting.
- BoreØ20 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- StatusDiscontinued → B05-MBL20X400S
About the Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S
The AirTAC B05-MAL20X400S is a discontinued compact double-acting aluminum mini round cylinder engineered for manipulator and pick-and-place robot arms. The "B05-" prefix designates this as a robot-dedicated variant, mechanically identical to the standard MAL20X400S. It delivers 157 N of push force at 0.5 MPa through a 20 mm bore and 400 mm stroke. AirTAC replaced this legacy unit with the MBL20X400S, a drop-in alternative retaining the exact same bore, stroke, output force, G1/8 port, and mounting interface.
This model features a built-in magnet (-S) for position detection. During the upgrade, the older threaded end covers were replaced by a riveted rolling-packed body on the MBL. Internally, a heterogeneous two-way seal retains grease, and the 8 mm carbon-steel rod features 20 um hard-chrome plating to resist wear during rapid robotic cycling. Because the stroke is 400 mm, the slender 8 mm rod is highly susceptible to bending under lateral stress, requiring an external guide rail to prevent premature seal failure.
Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S Technical Specifications
| Model | Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S |
|---|---|
| Series | MAL aluminum-barrel mini round cylinder (discontinued) |
| Replacement | B05-MBL20X400S |
| Bore size | Ø20 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 B05-MBL20X400S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
The B05-MBL20X400S 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.
Model Code: Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S
| MAL | Aluminum-barrel mini round cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×400 | 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.
Where the Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S Is Used
Pick-and-Place Robot Arms
Drives the vertical Z-axis extension on Cartesian manipulators moving lightweight electronic components, utilizing the 400 mm stroke to reach into deep trays.
PCB Board Ejection
Pushes populated printed circuit boards out of an SMT line conveyor lane, relying on the 157 N push force at 0.5 MPa to overcome edge friction.
Small Part Sorting
Actuates a diverting finger on a high-speed packaging sorter to flick small plastic housings into secondary chutes without stalling.
Replacing the Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S with B05-MBL20X400S
To replace this discontinued cylinder, order the MBL20X400S, ensuring your manipulator setup matches its 20 mm bore, 400 mm stroke, G1/8 PT port, and magnet configuration. If your pick-and-place payload requires less force, stepping down to the 16 mm bore class is not an option in this series, but stepping up to the 25 mm bore yields 245 N of push force at 0.5 MPa. If your robot arm needs precise end-of-stroke deceleration, note that the fixed rubber bumper on this unit cannot be tuned; you must switch to the current MBLC line for an adjustable air cushion. Furthermore, a plain double-acting cylinder drifts when air pressure is lost, so fit a pilot-operated check valve if the manipulator arm must hold its vertical position during an emergency stop. At 400 mm of travel, side-load tolerance is minimal, making a pivot mount or external linear guide essential. Finally, the -S magnet on this legacy MAL works with CS1-M / DS1-M switches, whereas the MBL replacement requires the newer CMSG / DMSG / EMSG sensor family.
Upgrade checklist
- ✓ Order the B05-MBL20X400S (same bore/stroke/force)
- ✓ Same G1/8 port and mounting accessories
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
- ✓ Need a cushion? use MBLC (adjustable air cushion)
- ✓ Confirm back cover (CA / U) and thread (PT/NPT/G)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.1 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Front/rear covers are threaded — not intended for field disassembly.
- check Use the correct mounting accessory (LB / FA / SDB) and back cover (CA / U / CM).
- check For new builds, specify the B05-MBL20X400S instead of this discontinued model.
Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S FAQ
Yes, the B05-MAL20X400S is discontinued. The exact drop-in replacement is the MBL20X400S, which shares the same 20 mm bore, 400 mm stroke, G1/8 port, and mounting dimensions. The B05- prefix simply marked it as a robot/manipulator-dedicated variant, and the MBL replacement functions identically. Note that the MBL uses a riveted body instead of threaded covers, and its magnet requires CMSG / DMSG / EMSG switches instead of the older CS1-M / DS1-M sensors.
The 20 mm bore generates a push force of 157 N and a pull force of 132 N at 0.5 MPa. At 0.7 MPa, the push force increases to 220 N, with a maximum theoretical force of 32 kgf at 1.0 MPa. It operates on filtered air at 0.1-1.0 MPa, runs at 30-800 mm/s, and uses a fixed rubber bumper rather than an adjustable cushion.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The B05-MBL20X400S replaces this model 1:1.
Fast Dispatch
MBL replacements usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended AirTAC MBL Replacements
Request a Quote (Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X400S → B05-MBL20X400S)
Tell us the quantity and destination — we quote the drop-in B05-MBL20X400S replacement with price, stock and lead time, usually within 7-8 hours.