Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA
The AirTAC Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA is a genuine single acting, push (spring return) aluminum-barrel mini round cylinder with a Ø40mm bore and 15mm stroke, G1/4 air ports and a fixed rubber bumper. Air drives the push (work) stroke and the spring returns the rod — it rests retracted on air loss.
- BoreØ40 mm
- Stroke15 mm
- Port sizeG1/4
- Acting typeSingle acting, push (spring return)
- Rod threadM12×1.25
- CushionFixed rubber bumper
About the Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA
The AirTAC MSBL40X15CA is a compact single-acting push-type mini cylinder with a 40 mm bore and 15 mm stroke. Air extends the rod to perform work, while an internal spring retracts it, providing a fail-safe retracted home position on air loss. As the largest standard bore in this series, it delivers a usable push force of 439.6 N at 0.5 MPa (690.8 N at 0.7 MPa), already net of the opposing spring. The short 15 mm travel is ideal for high-cycle, short-stroke ejection or clamping tasks.
This configuration uses a CA pivot/clevis back cover, allowing the cylinder body to swing on a pin to accommodate arcing or angular loads without binding. It features a riveted rolling-packed aluminum barrel and a 20 µm hard-chrome plated carbon-steel rod. Because this SKU lacks the -S magnet code, it cannot accept a CMSG, DMSG, or EMSG position sensor. The end-of-stroke impact is managed by a fixed rubber bumper, as single-acting designs do not use adjustable air cushions.
Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA Technical Specifications
| Model | Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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. Thread options: PT / G / NPT.
Usable Push Force (Ø40mm)
| Pressure | Push force (net of spring) |
|---|---|
| 0.5 MPa | 439.6 N |
| 0.7 MPa | 690.8 N |
These are the usable single-acting forces after the return spring — lower than a same-bore double-acting MBL. Size with a margin.
Model Code: Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA
| MSBL | Single acting, push (spring return) aluminum-barrel mini cylinder. |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×15 | Stroke length in mm. |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
| CA / U | Back cover: CA pivot (clevis) or U flat-end. |
Related: MTBL (single-acting pull), MBL/MBLC (double acting), MBLD (double rod).
Where the Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA Is Used
Stamping Press Ejector
Uses the 439.6 N push force at 0.5 MPa to eject small stamped metal parts from a die, with the 15 mm stroke providing fast retraction and the spring return ensuring the ejector clears the press on air loss.
Pivoting Parts Diverter
Leverages the CA pivot clevis to swing a diverter arm on a packaging conveyor, accommodating the arcing motion while pushing lightweight cartons into a secondary lane.
Woodworking Clamp
Applies 690.8 N of push force at 0.7 MPa to hold a wooden workpiece against a router fence, with the fail-safe spring return releasing the part instantly if compressed air drops.
Is the Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA the Right Cylinder?
At 40 mm, this is the largest bore in the MSBL series, yielding 439.6 N of usable push force at 0.5 MPa. If your application requires less force, stepping down to the 32 mm bore provides 281.3 N at 0.5 MPa, simplifying the 3/2 valve and air requirements. Because 40 mm is the maximum size, stepping up is not an option; for higher force needs, consider a double-acting MBL cylinder. Remember that the minimum operating pressure is 0.2 MPa to overcome the return spring, and the operating range spans 0.2-1.0 MPa.
The CA pivot back cover is essential for applications where the rod end travels an arc, preventing side-load binding. Never apply an external load during the spring return stroke, as the return force is small and meant only to retract the rod itself. For replacements, match the 40 mm bore, 15 mm stroke, G1/4 port, PT thread, CA pivot cover, and confirm no magnet is present. The 15 mm stroke keeps the rod fully supported, minimizing rod bending even at high speeds up to 800 mm/s.
Quick checklist
- ✓ Usable push force at your pressure (min 0.2 MPa)
- ✓ Fail-safe rest position (retracted)
- ✓ No external load on the spring return stroke
- ✓ Magnet (S) for sensors?
- ✓ Side load — consider a guided cylinder
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 Use the correct mounting accessory (LB / FA / SDB) and back cover (CA / U).
- check Installation by qualified personnel per AirTAC docs.
Airtac MSBL Aluminum Alloy Mini Cylinder MSBL40X15CA FAQ
The usable push force is 62.8 N at 0.2 MPa, 314.0 N at 0.4 MPa, 439.6 N at 0.5 MPa, and 690.8 N at 0.7 MPa. The operating pressure range is 0.2-1.0 MPa, with a 0.2 MPa minimum required to overcome the return spring.
No, this specific SKU lacks the -S code, meaning it has no built-in magnet and cannot accept CMSG, DMSG, or EMSG sensor switches. It also uses a fixed rubber bumper instead of an adjustable air cushion to manage end-of-stroke impact.
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