This model is discontinued
AirTAC has phased out the MSAL series. You can still order this code here: we ship the direct replacement MSBL25X55U, 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 MSAL25X55U
The AirTAC Airtac MSAL Front Single Acting Compact Cylinder MSAL25X55U is a single acting, push (spring return) aluminum-barrel mini cylinder with a Ø25mm bore and 55mm 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL25X55U.
- BoreØ25 mm
- Stroke55 mm
- Port sizeG1/8
- Acting typeSingle acting, push (spring return)
- Rod threadM10×1.25
- StatusDiscontinued → AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL25X55U
- 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 MSAL25X55U
The AirTAC MSAL25X55U is a discontinued single-acting push cylinder with a 25mm bore and 55mm stroke. Air extends the rod to do its work, while an internal spring retracts it for a fail-safe home when air is removed. It delivers a usable push force of 176.4 N at 0.5 MPa (274.5 N at 0.7 MPa). The direct replacement is the MSBL25X55U, matching the bore, stroke, G1/8 port, and U back cover.
This U-cover SKU has no magnet, so it cannot take a position sensor. As an upgrade fact, the MSAL uses threaded covers and older switches, while the MSBL replacement uses a riveted rolling-packed body. Another detail is the fixed rubber bumper, which absorbs end-of-stroke impact without adjustable cushioning. Remember that the return spring provides a rest, not a lock, so use an external device to hold a load mid-stroke.
Airtac MSAL Front Single Acting Compact Cylinder MSAL25X55U Technical Specifications
| Model | Airtac MSAL Front Single Acting Compact Cylinder MSAL25X55U |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL25X55U |
| Bore size | Ø25 mm |
| Stroke | 55 mm |
| Acting type | Single acting, push (spring return) |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL25X55U carries the same single-acting ratings.
Usable Push Force (Ø25mm)
| Pressure | Push force (net of spring) |
|---|---|
| 0.5 MPa | 176.4 N |
| 0.7 MPa | 274.5 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 MSAL25X55U
| MSAL | Single acting, push (spring return) aluminum-barrel mini cylinder (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×55 | 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 MSAL25X55U Is Used
PCB Ejector Pin
Pushes a bare board out of a test fixture with 176.4 N at 0.5 MPa; the spring safely retracts the pin when air drops.
Aluminum Extrusion Clamp
Holds a framing profile against a saw stop; the flat U cover mounts rigidly while air holds the 55mm stroke.
Packaging Flap Diverter
Extends to route a cardboard carton down a packing lane, relying on the fail-safe home if the air supply fails.
Replacing the Airtac MSAL Front Single Acting Compact Cylinder MSAL25X55U with AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL25X55U
To replace this MSAL25X55U with the MSBL25X55U, confirm the 25mm bore, 55mm stroke, G1/8 PT port, and flat U back cover. Because this SKU lacks the -S magnet, you lose position sensing entirely unless you step up to an MSBL25X55US and adopt the newer CMSG/DMSG/EMSG switch family. Maintain at least 0.2 MPa working pressure so air can beat the return spring.
When sizing, stepping down to the 20mm bore drops the 0.5 MPa push force to 106.8 N, while stepping up to the 32mm bore raises it to 317.7 N. At this 55mm stroke on a small bore, mind the side-load to avoid rod bending. Also, apply no external load on the spring return stroke for safety.
Upgrade checklist
- ✓ Order the AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL25X55U (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 AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL25X55U instead of this discontinued model.
Airtac MSAL Front Single Acting Compact Cylinder MSAL25X55U FAQ
Yes, the MSAL25X55U is discontinued. The direct replacement is the MSBL25X55U, which matches the 25mm bore, 55mm stroke, G1/8 port, and flat U back cover. The MSBL upgrades the body to a riveted rolling-packed design.
The usable push force is 176.4 N at 0.5 MPa and 274.5 N at 0.7 MPa. The maximum force is about 28 kgf. It requires a minimum operating pressure of 0.2 MPa to overcome the internal return spring.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The AIRTACMSBLFRONTSINGLEACTINGCOMPACTCYLINDERMSBL25X55U 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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