This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA 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 MSAL20X50SCA
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SCA is a single acting, push (spring return) aluminum-barrel mini cylinder with a Ø20mm bore and 50mm 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA.
- BoreØ20 mm
- Stroke50 mm
- Port sizeG1/8
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA
About the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SCA
The AirTAC MSAL20X50SCA is a discontinued single-acting push cylinder with a 20mm bore and 50mm stroke. Air extends the rod, while an internal spring retracts it to a fail-safe home. It delivers a usable push force of 106.8 N at 0.5 MPa. The exact drop-in replacement is the MSBL20X50SCA, matching the bore, stroke, and CA pivot cover.
This SKU includes the -S magnet for position sensing. The older MSAL uses CS1-M or DS1-M reed switches, whereas the MSBL upgrade uses CMSG, DMSG, or EMSG sensors. The MSAL features threaded covers, while the current MSBL utilizes a riveted rolling-packed body. Both share the fixed rubber bumper design, meaning there is no adjustable cushioning.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SCA Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SCA |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA |
| Bore size | Ø20 mm |
| Stroke | 50 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA 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 MSAL20X50SCA
| MSAL | Single acting, push (spring return) aluminum-barrel mini cylinder (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×50 | 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 MSAL20X50SCA Is Used
PCB Ejector Pin
Pushes delicate printed circuit boards out of a test fixture using 106.8 N at 0.5 MPa; the spring safely retracts the pin when air drops.
Packaging Flap Guide
Extends to guide cardboard carton flaps on a packing line, with the CA clevis accommodating arc misalignment during the stroke.
Light-Duty Part Stop
Acts as a retractable stop for small plastic bottles on a conveyor, relying on the fail-safe home position to clear the path during jams.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SCA with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA
To replace this MSAL20X50SCA, install the MSBL20X50SCA. Confirm the 20mm bore, 50mm stroke, G1/8 port, PT thread, and CA pivot back cover. Swap the CS1-M/DS1-M sensor for a CMSG/DMSG/EMSG switch. Maintain a 0.2 MPa minimum air pressure to overcome the spring, and apply no external load on the return stroke. At 50mm stroke on a small bore, watch for side-load rod-bending.
If sizing alternatives, stepping down is not an option as 20mm is the smallest bore. Stepping up to the 32mm bore yields 317.7 N at 0.5 MPa, providing much greater thrust if your fixture exceeds the 20mm capacity.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA (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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SCA FAQ
Yes, the MSAL20X50SCA is discontinued. The exact drop-in replacement is the MSBL20X50SCA, matching the 20mm bore, 50mm stroke, G1/8 port, and CA mounting. You must update your sensors: the MSAL -S magnet uses CS1-M/DS1-M switches, while the MSBL uses CMSG/DMSG/EMSG.
The usable push force is 106.8 N at 0.5 MPa and 169.6 N at 0.7 MPa. The maximum equivalent is roughly 17.3 kgf. It requires a minimum operating pressure of 0.2 MPa to overcome the return spring and extend the rod.
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Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA replaces this model 1:1.
Fast Dispatch
MSBL replacements usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended MSBL Replacements
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