This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU in place of this model. The replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU is a single acting, push (spring return) aluminum-barrel mini cylinder with a Ø20mm bore and 20mm stroke, G1/8 ports and a fixed rubber bumper. Air drives the push (work) stroke and the spring returns the rod — it rests retracted on air loss. This model is discontinued; the drop-in replacement is the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU.
- BoreØ20 mm
- Stroke20 mm
- Port sizeG1/8
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU
About the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU
The AirTAC MSAL20X20SU is a discontinued single-acting push, spring-return mini cylinder. Air extends the Ø20 mm rod for the 20 mm work stroke, while an internal spring retracts it to a fail-safe home when air is removed. It delivers a usable push force of 106.8 N at 0.5 MPa. The exact drop-in replacement is the MSBL20X20SU, matching the bore, stroke, G1/8 port, and U back cover.
This SKU includes the -S magnet for position sensing. On the legacy MSAL, this uses the older CS1-M or DS1-M switches; the MSBL replacement upgrades to CMSG, DMSG, or EMSG sensors. The MSAL features threaded covers, whereas the current MSBL uses a riveted rolling-packed body. Both retain a fixed rubber bumper for end-of-stroke damping, as no adjustable cushion exists for this single-acting series.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU |
| Bore size | Ø20 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push (spring return) |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 150 mm |
Single-acting minimum working pressure is 0.2 MPa (the air must overcome the return spring). Do not apply an external load during the spring return stroke. The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU carries the same single-acting ratings.
Usable Push Force (Ø20mm)
| Pressure | Push force (net of spring) |
|---|---|
| 0.5 MPa | 106.8 N |
| 0.7 MPa | 169.6 N |
Usable single-acting force after the return spring — lower than a same-bore double-acting cylinder. Size with a margin.
Model Code: Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU
| MSAL | Single acting, push (spring return) aluminum-barrel mini cylinder (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×20 | Stroke length in mm. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MSBL uses CMSG/DMSG/EMSG). |
| CA / U / CM | Back cover: CA pivot, U flat-end or CM round-end. |
Replacement: MSAL → MSBL. Related: MTAL/MTBL (single-acting pull), MAL/MBL (double acting).
Where the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU Is Used
PCB Ejector Pin
Pushes delicate printed circuit boards out of an SMT testing fixture with 106.8 N at 0.5 MPa, relying on the spring return to retract the pin safely when air is cut.
Connector Sorter Gate
Acts as a diverter gate on a vibratory bowl feeder for electronic connectors, using the compact 20 mm stroke and fail-safe home to prevent jamming during air loss.
Light Part Stamper
Extends to stamp date codes onto small plastic enclosures, where the fixed rubber bumper absorbs the 20 mm end-of-stroke impact without damaging the part.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU
To replace this MSAL20X20SU, order the MSBL20X20SU. Confirm the 20 mm bore, 20 mm stroke, G1/8 PT port, M8x1.25 rod-end thread, and the U flat-end back cover. Note the sensor family change from CS1-M/DS1-M to CMSG/DMSG/EMSG. Remember the 0.2 MPa minimum operating pressure required to overcome the return spring, and apply no external load on the return stroke.
If sizing a new application, step down or up based on push force. This 20 mm bore provides 106.8 N at 0.5 MPa. Stepping down is not possible as 20 mm is the smallest size. Stepping up to the 25 mm bore increases the push force to 176.4 N at 0.5 MPa. For this 20 mm stroke, side-load and rod-bending risks are minimal, but always ensure rigid front-guide alignment.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU (same bore/stroke/force)
- ✓ Same push direction and retracted fail-safe home
- ✓ Min 0.2 MPa; no external load on the spring return
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
- ✓ 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 0.2 – 1.0 MPa (min 0.2 to overcome the spring).
- check Apply no external load on the spring return stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20SU FAQ
Yes, the MSAL20X20SU is discontinued. The exact drop-in replacement is the MSBL20X20SU. It matches the 20 mm bore, 20 mm stroke, single-acting push function, G1/8 port, and U back cover. You only need to upgrade the magnet switches from the old CS1-M/DS1-M to the new CMSG/DMSG/EMSG family.
The usable push force is 106.8 N at 0.5 MPa and 169.6 N at 0.7 MPa, with a maximum of 17.3 kgf. Because it is single-acting push with a spring return, the minimum operating pressure is 0.2 MPa to overcome the internal spring. The cylinder operates between 0.2 and 1.0 MPa.
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Drop-in Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20SU replaces this model 1:1.
Fast Dispatch
MSBL replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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