This model is discontinued
AirTAC has phased out the MSAL series. You can still order this code here: we ship the direct replacement MSBL40X20CM, 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 MSAL40X20CM
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20CM 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 direct replacement is the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20CM.
- BoreØ40 mm
- Stroke20 mm
- Port sizeG1/4
- Acting typeSingle acting, push (spring return)
- Rod threadM12×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20CM
- 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 MSAL40X20CM
The AirTAC MSAL40X20CM is a discontinued single-acting push mini cylinder with a 40mm bore and 20mm stroke. Air extends the rod to do work, while an internal spring retracts it for a fail-safe home on air loss. It delivers 539.9 N of usable push force at 0.5 MPa and 791.1 N at 0.7 MPa. The direct replacement is the MSBL40X20CM, matching the bore, stroke, G1/4 port, and CM round-end cover.
This SKU lacks the -S magnet, so it cannot take a position sensor. As an upgrade fact, the MSAL uses threaded covers and older CS1-M/DS1-M switches, while the MSBL replacement features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors. It uses a fixed rubber bumper for end-of-stroke damping, not an adjustable cushion. Never apply an external load on the spring return stroke, as the spring only manages its own mass.
Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20CM Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20CM |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20CM |
| 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20CM 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 MSAL40X20CM
| 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 MSAL40X20CM Is Used
Stamping Press Ejection
Ejects small stamped metal parts from a die using 539.9 N at 0.5 MPa, relying on the spring return to safely retract the ejector pin during the press cycle.
PCB Router Clamping
Holds a PCB panel flat against a router fixture during depaneling; the spring return ensures the clamp lifts clear when air is dropped for loading.
Spot Welder Gun Open
Pushes a movable electrode arm to close a spot welder tip, using the 791.1 N peak force at 0.7 MPa, with the fail-safe home pulling the arm back to prevent accidental welding.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20CM with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20CM
To replace this MSAL40X20CM with the MSBL40X20CM, confirm the 40mm bore, 20mm stroke, PT G1/4 port, M12x1.25 rod-end thread, and CM round-end cover. Since this SKU has no -S magnet, you lose position sensing unless you buy an -S MSBL and switch to CMSG/DMSG/EMSG switches. Minimum operating pressure is 0.2 MPa to overcome the spring.
For sizing both ways: if 539.9 N at 0.5 MPa is too much, step down to the 32mm bore (317.7 N at 0.5 MPa). If you need more force, 40mm is the largest MSAL mini bore, so you would step up to an ISO 15552 cylinder. For this 20mm stroke on a 40mm bore, side-load and rod-bending risks are low, but keep the load perfectly axial.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20CM (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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20CM instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL40X20CM FAQ
Yes, the MSAL40X20CM is discontinued. The direct replacement is the MSBL40X20CM, which matches the 40mm bore, 20mm stroke, G1/4 port, and CM cover. The MSBL upgrades the body to a riveted rolling-packed design.
The usable push force (net of the return spring) is 539.9 N at 0.5 MPa and 791.1 N at 0.7 MPa. The minimum operating pressure is 0.2 MPa, which is required to overcome the internal return spring and extend the rod.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL40X20CM 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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