This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBL20X400-S-CM — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBL20X400-S-CM 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 MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM
The AirTAC Airtac MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM 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 MBL20X400-S-CM, which matches its bore, stroke, force and mounting.
- BoreØ20 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- StatusDiscontinued → MBL20X400-S-CM
About the Airtac MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM
The AirTAC MAL20X400-S-CM is a discontinued double-acting aluminum mini round cylinder. It features a 20mm bore, delivering 157N push and 132N pull at 0.5MPa. The exact drop-in replacement is the MBL20X400-S-CM, which matches the bore, stroke, force, G1/8 port, and CM round-end mounting. This legacy model used threaded front and back covers, whereas the modern MBL utilizes a riveted rolling-packed body for equally robust performance.
This specific SKU includes a built-in magnet (-S) for position sensing. On the MAL, this magnet interfaces with legacy CS1-M or DS1-M reed switches, but upgrading to the MBL requires switching to the current CMSG, DMSG, or EMSG sensor families. The 8mm carbon-steel rod features 20μm hard-chrome plating and relies on a heterogeneous two-way grease-retaining seal. Because it reaches 400mm of stroke, the small 8mm rod has low side-load tolerance, making the CM round-end back cover essential for arcing loads.
Airtac MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM Technical Specifications
| Model | Airtac MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM |
|---|---|
| Series | MAL aluminum-barrel mini round cylinder (discontinued) |
| Replacement | MBL20X400-S-CM |
| 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 MBL20X400-S-CM 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 MBL20X400-S-CM 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 MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM
| 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 MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM Is Used
PCB Conveyor Gating
Drives a 400mm pop-up gate arm in a PCB conveyor to divert boards, using the 157N push force and the CM round-end to accommodate the lever's arcing motion.
Wafer Cassette Ejector
Ejects wafer cassettes from a loading bay over a 400mm travel, where the -S magnet triggers a CS1-M sensor to confirm full extension before the robot retrieves the cassette.
Packaging Tray Reject
Pushes misaligned trays off a packaging line using the 132N pull force to retract the 8mm rod quickly at 30-800mm/s without stalling the lightweight reject arm.
Replacing the Airtac MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM with MBL20X400-S-CM
To replace the MAL20X400-S-CM, order the MBL20X400-S-CM. Confirm your port thread (default PT tapered), the CM round-end back cover, and the magnet option. If you need position feedback, remember the MBL mandates an upgrade from the old CS1-M/DS1-M switches to the modern CMSG/DMSG/EMSG series. The MAL relies on a fixed rubber bumper; if your application requires adjustable end-of-stroke cushioning, step up to the MBLC variant on the current line.
For sizing, this 20mm bore provides 157N push at 0.5MPa. If you need less force, there is no smaller standard MAL bore, so you must look outside the mini round family. If you need more force, step up to the 25mm bore, which yields 245N push at 0.5MPa. At 400mm of stroke, the 8mm rod is highly susceptible to bending under side-loads; always use an external guide rail or ensure the CM round-end pivots freely to prevent premature seal failure. Note that a plain bumper does not hold the load if air pressure drops; install a pilot-operated check valve for position holding.
Upgrade checklist
- ✓ Order the MBL20X400-S-CM (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 MBL20X400-S-CM instead of this discontinued model.
Airtac MAL20 Aluminum Alloy Mini Cylinder MAL20X400-S-CM FAQ
Yes, the AirTAC MAL20X400-S-CM is discontinued. The exact drop-in replacement is the MBL20X400-S-CM, which offers the same 20mm bore, 400mm stroke, G1/8 port, CM round-end mounting, and output force. The main upgrade is the body construction: the MAL uses threaded covers while the MBL uses a riveted rolling-packed body.
At 0.5MPa, the 20mm bore provides 157N push and 132N pull. At 0.7MPa, push is 220N, with a theoretical maximum of 32kgf at 1.0MPa. Because this SKU includes the -S magnet, it works with legacy CS1-M and DS1-M switches on the MAL. When upgrading to the MBL replacement, you must use the current CMSG, DMSG, or EMSG sensors.
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Drop-in Upgrade
The MBL20X400-S-CM 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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