This model is discontinued
AirTAC has phased out the MSAL series. You can still order this code here: we ship the direct replacement MSBL20X50SCA, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 direct replacement is the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA.
- BoreØ20 mm
- Stroke50 mm
- Port sizeG1/8
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
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 direct 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 direct 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.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X50SCA replaces this model 1:1.
Fast Dispatch
MSBL replacements are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended MSBL Replacements
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