This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U 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 MSAL40X50U
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL40X50U is a single acting, push (spring return) aluminum-barrel mini cylinder with a Ø40mm bore and 50mm 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U.
- BoreØ40 mm
- Stroke50 mm
- Port sizeG1/4
- Acting typeSingle acting, push (spring return)
- Rod threadM12×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U
About the Airtac MSAL Front Single Acting Compact Cylinder MSAL40X50U
The AirTAC MSAL40X50U is a discontinued single-acting push, spring-return mini cylinder. Air extends the 16mm rod for the 50mm work stroke, and an internal spring retracts it to a fail-safe home when air is released, requiring only a 3/2 valve. The exact drop-in replacement is the MSBL40X50U, matching the 40mm bore, 50mm stroke, G1/4 port, and U flat-end back cover.
This SKU delivers a usable push force of 539.9 N at 0.5 MPa and 791.1 N at 0.7 MPa (net of the return spring). It features a fixed rubber bumper, PT thread form, and threaded covers, whereas the MSBL upgrade uses a riveted rolling-packed body. Because this specific code lacks the -S option, it cannot accept a position sensor; the MSBL -S upgrade uses CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M.
Airtac MSAL Front Single Acting Compact Cylinder MSAL40X50U Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL40X50U |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U |
| Bore size | Ø40 mm |
| Stroke | 50 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U 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 MSAL40X50U
| MSAL | Single acting, push (spring return) aluminum-barrel mini cylinder (discontinued). |
|---|---|
| 40 | 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 MSAL40X50U Is Used
Injection Mold Ejection
Ejects plastic parts from a mold cavity using 539.9 N at 0.5 MPa. The spring-return fail-safe ensures the rod retracts clear of the mold plate before the press closes, preventing crash damage on air loss.
Sheet Metal Spot Clamp
Pushes a clamp arm to hold 16-gauge steel sheets for robotic welding. The U flat-end back cover mounts rigidly to the fixture frame, while the single-acting push design keeps pneumatic wiring to one 3/2 valve.
Packaging Gate Divert
Extends a flap to divert cardboard cartons on a conveyor line. The fixed rubber bumper absorbs the 50mm stroke impact, and the fail-safe spring return opens the gate automatically if the air supply drops.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL40X50U with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U
To replace this MSAL40X50U, order the MSBL40X50U. Confirm the 40mm bore, 50mm stroke, G1/4 port, PT thread, and U flat-end back cover. Note the sensor change: this no-magnet SKU cannot take a switch, while an MSBL-S uses CMSG/DMSG/EMSG. Maintain a 0.2 MPa minimum pressure to overcome the spring, and apply NO external load on the return stroke.
If you need to step down, the 32mm bore neighbor provides 317.7 N at 0.5 MPa. If you need more force, 40mm is the largest standard MSAL size, so you would step up to an ISO 15552 profile. For a 50mm stroke on this compact 40mm bore, check side-load and rod-bending forces if guiding is misaligned.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U (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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL40X50U FAQ
Yes, the MSAL40X50U is discontinued. The exact drop-in replacement is the MSBL40X50U, which matches the 40mm bore, 50mm stroke, single-acting push function, G1/4 port, and U flat-end back cover. The MSBL upgrade features a riveted rolling-packed body instead of threaded covers.
The usable push force is 539.9 N at 0.5 MPa and 791.1 N at 0.7 MPa (already net of the return spring). The operating pressure range is 0.2-1.0 MPa, but 0.2 MPa is the absolute minimum because the air must overcome the internal return spring to extend the rod.
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Drop-in Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X50U 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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