This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U 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 MSAL40X20U
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20U is a single acting, push (spring return) aluminum-barrel mini cylinder with a Ø40mm bore and 20mm stroke, G1/4 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U.
- BoreØ40 mm
- Stroke20 mm
- Port sizeG1/4
- Acting typeSingle acting, push (spring return)
- Rod threadM12×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U
About the Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20U
The AirTAC MSAL40X20U is a discontinued single-acting push, spring-return mini cylinder. Air extends the rod for the work stroke, while an internal spring retracts it to a fail-safe home when air is released. It delivers a usable push force of 539.9 N at 0.5 MPa and 791.1 N at 0.7 MPa. The exact drop-in replacement is the MSBL40X20U, which matches the 40 mm bore, 20 mm stroke, G1/4 port, and U back cover.
This SKU lacks the -S magnet and cannot accept a position sensor. The original MSAL uses threaded covers and the older CS1-M / DS1-M switches on magnetized variants, whereas the MSBL upgrade features a riveted rolling-packed body and CMSG / DMSG / EMSG sensors. End-of-stroke damping relies on a fixed rubber bumper, not an adjustable cushion.
Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20U Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20U |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push (spring return) |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U carries the same single-acting ratings.
Usable Push Force (Ø40mm)
| Pressure | Push force (net of spring) |
|---|---|
| 0.5 MPa | 539.9 N |
| 0.7 MPa | 791.1 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 MSAL40X20U
| MSAL | Single acting, push (spring return) aluminum-barrel mini cylinder (discontinued). |
|---|---|
| 40 | 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 MSAL40X20U Is Used
Stamping Press Ejection
Ejects small stamped metal parts from a die using 539.9 N of push force at 0.5 MPa, with the spring safely pulling the rod back to clear the die before the next cycle.
PCB Router Clamping
Holds a PCB panel flat against a router bed during depaneling; the single-acting push design requires only one 3/2 valve and a single air line for simplified machine wiring.
Packaging Flap Folding
Folds carton flaps on a packaging line, relying on the fixed rubber bumper to absorb the 50-800 mm/s impact and the fail-safe spring return to retract the rod if air pressure drops.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20U with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U
To replace the MSAL40X20U, install the MSBL40X20U. Confirm the 40 mm bore, 20 mm stroke, G1/4 port, PT thread, U flat-end back cover, and the lack of a magnet. Because this is a single-acting push cylinder, the minimum operating pressure is 0.2 MPa to overcome the return spring, and you must apply no external load on the spring return stroke for safety. The 20 mm stroke is short enough to avoid rod-bending side-load issues.
If you need to step down, the 32 mm bore neighbor provides 317.7 N at 0.5 MPa. If you need more force, note that 40 mm is the largest standard MSAL size, so the next step up requires migrating to a different double-acting cylinder family.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U (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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20U FAQ
Yes, the MSAL40X20U is discontinued. The exact drop-in replacement is the MSBL40X20U, which matches the 40 mm bore, 20 mm stroke, G1/4 port, and U back cover. The MSBL upgrades the body to a riveted rolling-packed design.
The usable push force is 539.9 N at 0.5 MPa and 791.1 N at 0.7 MPa. The minimum operating pressure is 0.2 MPa because the air must overcome the internal return spring. This SKU has no magnet and cannot take a position sensor.
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Drop-in Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20U 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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