This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is B05-MBL20X90S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the B05-MBL20X90S 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-MAL20X90S
The AirTAC Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X90S is a double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 90mm stroke, G1/8 air ports and a fixed rubber bumper. This model is discontinued — the drop-in replacement is the B05-MBL20X90S, which matches its bore, stroke, force and mounting.
- BoreØ20 mm
- Stroke90 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- StatusDiscontinued → B05-MBL20X90S
About the Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X90S
The AirTAC B05-MAL20X90S is a discontinued compact double-acting aluminum mini round cylinder. The leading "B05-" prefix designates this as a robot and manipulator (pick-and-place) dedicated variant, mechanically identical to the standard MAL20X90S. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa. AirTAC replaced the MAL series with the MBL line, making the MBL20X90S the exact drop-in replacement. It matches the 20 mm bore, 90 mm stroke, G1/8 port, and M8x1.25 rod thread perfectly.
This legacy model features a threaded front and back cover design, whereas the modern MBL utilizes a riveted rolling-packed body. Equipped with a magnet (-S), this cylinder was designed to work with older CS1-M or DS1-M reed switches for position detection. When upgrading to the MBL20X90S, the sensor family changes to the current CMSG, DMSG, or EMSG series. The bore uses a heterogeneous two-way grease-retaining seal and a self-lubricating front-cover bearing guide to support the 8 mm carbon-steel rod, which is plated with 20 um of hard chrome for wear resistance.
Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X90S Technical Specifications
| Model | Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X90S |
|---|---|
| Series | MAL aluminum-barrel mini round cylinder (discontinued) |
| Replacement | B05-MBL20X90S |
| Bore size | Ø20 mm |
| Stroke | 90 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-MBL20X90S 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-MBL20X90S 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-MAL20X90S
| MAL | Aluminum-barrel mini round cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×90 | 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-MAL20X90S Is Used
Pick-and-Place Robot Arms
Drives the vertical Z-axis on Cartesian manipulators for rapid electronic component placement, utilizing the 90 mm stroke and 157 N push force to grip and lift lightweight PCBs.
Semiconductor Wafer Handling
Actuates small gripper fingers in cleanroom wafer sorting modules, where the compact 20 mm bore and self-lubricating bearing prevent particulate generation.
Small Part Ejection
Pushes molded plastic parts out of an injection mold cavity, using the 8 mm hard-chrome plated rod to withstand repetitive cycling without scoring.
Replacing the Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X90S with B05-MBL20X90S
To replace the B05-MAL20X90S, order the MBL20X90S. Confirm your 90 mm stroke, G1/8 port, and default PT tapered thread. Because this SKU includes the -S magnet, you must also upgrade your sensing components: the older CS1-M and DS1-M switches are incompatible with the MBL body, requiring a switch to CMSG, DMSG, or EMSG sensors. If your application requires an adjustable air cushion rather than the fixed rubber bumper found on this MAL, step up to the MBLC20X90S on the current line.
For sizing flexibility, stepping down to a 16 mm bore is not an option in this mini series, but stepping up to the 32 mm bore yields 402 N of push force at 0.5 MPa if you need greater rigidity. If you need less force to reduce impact on delicate manipulator jaws, the 20 mm bore is the smallest available. Note that a plain MAL or MBL cylinder does not hold its position when air pressure is lost; the rod will drift. Use an external rod lock or pilot-operated check valve if gravity must be restrained during an emergency stop.
Upgrade checklist
- ✓ Order the B05-MBL20X90S (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-MBL20X90S instead of this discontinued model.
Airtac B05-MAL Robot-Dedicated Pneumatic Cylinder B05-MAL20X90S FAQ
Yes, the B05-MAL20X90S is discontinued. The exact drop-in replacement is the MBL20X90S. The B05- prefix simply marked it as a robot pick-and-place variant, and the MBL replacement matches the 20 mm bore, 90 mm stroke, 157 N push force, G1/8 port, and mounting dimensions. You must upgrade your position sensors, as the MBL body requires CMSG, DMSG, or EMSG switches instead of the older CS1-M or DS1-M.
The 20 mm bore provides 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 theoretical maximum of 32 kgf at 1.0 MPa. It operates at speeds between 30-800 mm/s. It relies on a fixed rubber bumper for end-of-stroke deceleration and does not feature an adjustable cushion.
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Drop-in Upgrade
The B05-MBL20X90S replaces this model 1:1.
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MBL replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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