This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU 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 MSAL20X50SU
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SU 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU.
- BoreØ20 mm
- Stroke50 mm
- Port sizeG1/8
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU
About the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SU
The AirTAC MSAL20X50SU is a discontinued single-acting push, spring-return mini cylinder. Air extends the Ø8 mm rod for the 50 mm work stroke, while an internal spring retracts it to a fail-safe home when air is removed. It delivers 106.8 N of usable push force at 0.5 MPa. The exact drop-in replacement is the MSBL20X50SU, matching the bore, stroke, G1/8 port, and U-type flat-end rear cover.
This -S variant includes a magnet for position sensing, but the older MSAL body uses legacy CS1-M / DS1-M switches, whereas the MSBL upgrade accepts the modern CMSG / DMSG / EMSG family. The original MSAL features threaded covers, while the current MSBL uses a riveted rolling-packed body. End-of-stroke deceleration relies on a fixed rubber bumper, as no adjustable cushion exists on this single-acting series.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SU Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SU |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU |
| 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU 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 MSAL20X50SU
| 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 MSAL20X50SU Is Used
PCB Ejector Pin
Pushes bare circuit boards out of an SMT test fixture using 106.8 N at 0.5 MPa, relying on the spring return to clear the bay when air is cut.
Connector Sorting Gate
Diverts plastic connector housings down a reject chute; the fail-safe retracted home ensures the line stays open during an air loss event.
Light Foil Press
Applies a brief 169.6 N stamping force at 0.7 MPa to seat thin adhesive foils onto plastic trays before the spring withdraws the rod.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SU with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU
To replace this MSAL20X50SU, install the drop-in MSBL20X50SU. Confirm the 20 mm bore, 50 mm stroke, PT G1/8 port, M8x1.25 rod thread, and U-type flat-end back cover. You must also swap your CS1-M / DS1-M sensors for CMSG / DMSG / EMSG switches on the new riveted body. Remember the 0.2 MPa minimum operating pressure is required to overcome the return spring, and never apply an external load on the spring return stroke.
If sizing a new application, step down to a non-existent smaller bore or step up to the 25 mm bore, which provides 176.4 N of push force at 0.5 MPa. For a 20 mm bore at a 50 mm stroke, keep an eye on side-load conditions to prevent rod bending, and use an external locking device if you need to hold a load mid-stroke.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU (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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X50SU FAQ
Yes, the MSAL20X50SU is discontinued. The exact drop-in replacement is the MSBL20X50SU, which matches the 20 mm bore, 50 mm stroke, G1/8 port, and U-type back cover. You will need to upgrade your position sensors from the legacy CS1-M / DS1-M to the CMSG / DMSG / EMSG series.
This single-acting push cylinder provides a usable push force of 106.8 N at 0.5 MPa and 169.6 N at 0.7 MPa, with a maximum of roughly 17.3 kgf. The operating pressure range is 0.2-1.0 MPa, but a minimum of 0.2 MPa is required for air to overcome the internal return spring.
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Drop-in Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SU replaces this model 1:1.
Fast Dispatch
MSBL replacements usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
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