This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U 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 MSAL20X20U
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20U 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U.
- BoreØ20 mm
- Stroke20 mm
- Port sizeG1/8
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U
About the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20U
The AirTAC MSAL20X20U is a discontinued single-acting push cylinder with a 20mm bore and 20mm stroke. Air extends the rod to do its work, 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 MSBL20X20U, which matches the bore, stroke, G1/8 port, and U back cover.
This U-cover SKU has no -S magnet, so it cannot accept a position sensor. When upgrading to the MSBL, note the construction change: the MSAL uses threaded covers, while the MSBL features a riveted rolling-packed body. Both retain a fixed rubber bumper for end-of-stroke damping. Apply no external load on the return stroke, as the spring only drives the rod home.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20U Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20U |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U |
| 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U 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 MSAL20X20U
| 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 MSAL20X20U Is Used
PCB Ejector Pin
Pushes a bare logic board out of a testing fixture with 106.8 N at 0.5 MPa. The spring return guarantees the pin retracts clear of the board before the handler unloads it.
Connector Sorter Gate
Acts as a diverter flap on a vibratory bowl feeder for RJ45 jacks. Air extends the gate to reject bad parts, and the fail-safe home closes the lane on air loss to stop flow.
Foam Label Press
Tamps a small adhesive label onto a plastic injection mold housing. The fixed rubber bumper softens the 20mm stroke impact without requiring adjustment.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20U with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U
To replace this MSAL20X20U, specify the MSBL20X20U to match the 20mm bore, 20mm stroke, PT G1/8 port, and flat U back cover. Because this SKU lacks the -S magnet, you lose position sensing entirely; if you need a sensor, step up to an MSBL20X20S and use the modern CMSG/DMSG/EMSG switches instead of the legacy CS1-M/DS1-M. Remember the 0.2 MPa minimum working pressure required to overcome the return spring.
If sizing a new machine, step down or up based on your push needs. The 20mm bore gives 106.8 N at 0.5 MPa and 169.6 N at 0.7 MPa. If you need less force, no smaller standard bore exists in this family. If you need more, the 25mm bore provides 176.4 N at 0.5 MPa. Even at this short 20mm stroke, avoid side-loading the 8mm rod to prevent premature seal wear and bending.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U (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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X20U FAQ
Yes, the MSAL20X20U is discontinued. The exact drop-in replacement is the MSBL20X20U, which matches the 20mm bore, 20mm stroke, G1/8 port, and flat U back cover. The MSBL upgrades the body to a riveted rolling-packed design instead of threaded covers.
This single-acting push cylinder provides a usable force of 106.8 N at 0.5 MPa and 169.6 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the internal return spring. The maximum holding force is roughly 17.3 kgf at 0.7 MPa.
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Drop-in Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X20U 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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