Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA
The AirTAC Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA is a genuine single acting, pull (spring extend) aluminum-barrel mini round cylinder with a Ø40mm bore and 25mm stroke, G1/4 air ports and a fixed rubber bumper. Air drives the pull (work) stroke and the spring returns the rod — it rests extended on air loss.
- BoreØ40 mm
- Stroke25 mm
- Port sizeG1/4
- Acting typeSingle acting, pull (spring extend)
- Rod threadM12×1.25
- CushionFixed rubber bumper
About the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA
The AirTAC MTBL40X25CA is a compact single-acting pull-type mini cylinder with a 40mm bore and 25mm stroke. Air retracts the 16mm hard-chrome carbon-steel rod to perform useful work, while an internal spring drives it back out. It yields a usable pull force of 339.1 N at 0.5 MPa and 550.1 N at 0.7 MPa. The CA pivot back cover allows the body to swing on a clevis pin, absorbing angular alignment shifts during arcing motion.
This configuration uses a G1/4 port and a default PT tapered thread. It lacks the -S magnet option, so it cannot host CMSG, DMSG, or EMSG position sensors. The riveted aluminum barrel keeps the frame light for tight spaces, and overall length equals A plus twice the stroke. A fixed rubber bumper absorbs end-of-stroke impact, as no adjustable air cushion is present.
Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA Technical Specifications
| Model | Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull (spring extend) |
| 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 100 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 Pull Force (Ø40mm)
| Pressure | Pull force (net of spring) |
|---|---|
| 0.5 MPa | 339.1 N |
| 0.7 MPa | 550.1 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 MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA
| MTBL | Single acting, pull (spring extend) aluminum-barrel mini cylinder. |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×25 | 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: MSBL (single-acting push), MBL/MBLC (double acting), MBLD (double rod).
Where the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA Is Used
Press Die Stripper
Pulls a metal stamping stripper plate closed with 550.1 N at 0.7 MPa, then safely springs open to release the part when air pressure drops.
Pivot-Gate Latch
Uses the CA pivot cover to swing with an arcing mechanism, drawing a heavy security gate latch closed with 339.1 N at 0.5 MPa.
PCB Test Socket
Draws an electronics test socket lid downward to seat spring pins, relying on the fail-safe extended home to prevent board damage on air loss.
Is the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA the Right Cylinder?
Choose this 40mm bore when you need high pulling power in a compact body; it generates 339.1 N of pull force at 0.5 MPa. If your mechanism requires less force, step down to the 32mm bore, which provides 224.8 N at 0.5 MPa. If you need even more power, note that 40mm is the largest single-acting pull bore available in this series. Operating pressure must stay between 0.2-1.0 MPa, requiring at least 0.2 MPa to overcome the return spring.
Select the MTBL over the MSBL push type when a fail-safe extended home position is required upon air loss. Never apply external load resistance during the spring-extend return stroke. For a direct replacement, match the 40mm bore, 25mm stroke, G1/4 port, PT thread, CA pivot cover, and confirm no magnet is fitted. The 25mm stroke keeps the rod guided well, minimizing rod bending side-load risks seen in longer small-bore strokes.
Quick checklist
- ✓ Usable pull force at your pressure (min 0.2 MPa)
- ✓ Fail-safe rest position (extended)
- ✓ 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 MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X25CA FAQ
The usable pull force is 22.6 N at 0.2 MPa, 128.1 N at 0.3 MPa, 233.6 N at 0.4 MPa, 339.1 N at 0.5 MPa, 444.6 N at 0.6 MPa, and 550.1 N at 0.7 MPa. Operating pressure must be 0.2-1.0 MPa, with a 0.2 MPa minimum required to overcome the internal return spring.
No. The MTBL40X25CA lacks the -S built-in magnet option, so it cannot host AirTAC CMSG reed or DMSG/EMSG electronic sensors. You must select an MTBL40X25S variant or similar model with the -S code for position detection.
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