This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU 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 MSAL20X40SU
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL20X40SU is a single acting, push (spring return) aluminum-barrel mini cylinder with a Ø20mm bore and 40mm 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU.
- BoreØ20 mm
- Stroke40 mm
- Port sizeG1/8
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU
About the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X40SU
The AirTAC MSAL20X40SU is a discontinued single-acting push, spring-return mini cylinder. Air extends the 8mm rod, while an internal spring retracts it, providing a fail-safe retracted home on air loss. It delivers 106.8 N of usable push force at 0.5 MPa (169.6 N at 0.7 MPa) and requires a minimum 0.2 MPa to overcome the spring.
The exact drop-in replacement is the MSBL20X40SU, matching the 20mm bore, 40mm stroke, G1/8 PT port, and U flat-end back cover. The MSAL uses a threaded front cover and an -S magnet compatible with CS1-M / DS1-M switches; the MSBL upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors. End-of-stroke damping relies on a fixed rubber bumper, not an adjustable cushion.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X40SU Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL20X40SU |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU |
| Bore size | Ø20 mm |
| Stroke | 40 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU 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 MSAL20X40SU
| MSAL | Single acting, push (spring return) aluminum-barrel mini cylinder (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×40 | 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 MSAL20X40SU Is Used
PCB Ejector Pins
Pushes finished circuit boards out of test fixtures with 106.8 N at 0.5 MPa, relying on the spring return to retract the pin safely when air is removed.
Connector Insertion Stop
Acts as a hard stop for electronic connector alignment, using the fixed rubber bumper to absorb the impact without damaging delicate components.
Packaging Flap Deflector
Extends to guide carton flaps during case erecting, with the fail-safe retracted home ensuring the mechanism clears the packaging path during jams.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL20X40SU with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU
To replace this MSAL20X40SU, specify the MSBL20X40SU to match the 20mm bore, 40mm stroke, G1/8 PT port, U flat-end cover, and -S magnet (noting the switch family changes from CS1-M/DS1-M to CMSG/DMSG/EMSG). Ensure your air supply meets the 0.2 MPa minimum to drive the stroke, and apply no external load on the return stroke to avoid spring damage.
For sizing flexibility, 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 if your clamp requires more force. At 40mm stroke on this compact bore, keep the load centered to prevent rod-bending side loads.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU (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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL20X40SU FAQ
Yes, the MSAL20X40SU is discontinued. The exact drop-in replacement is the MSBL20X40SU, which matches the 20mm bore, 40mm stroke, G1/8 port, U back cover, and -S magnet. You only need to update your sensors from CS1-M/DS1-M to the CMSG/DMSG/EMSG family.
The 20mm bore single-acting push force is 12.6 N at 0.2 MPa, 106.8 N at 0.5 MPa, and 169.6 N at 0.7 MPa (max 17.3 kgf). A minimum of 0.2 MPa is required to overcome the return spring.
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Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL20X40SU 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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