Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X30CA
The AirTAC Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X30CA is a genuine single acting, pull (spring extend) aluminum-barrel mini round cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 MTBL40X30CA
The AirTAC MTBL40X30CA is a compact single-acting pull-type mini cylinder with a 40mm bore and 30mm stroke. Air retracts the rod while an internal spring extends it, yielding a fail-safe extended home position. It generates 339.1 N of usable pull force at 0.5 MPa and 550.1 N at 0.7 MPa. The CA pivot clevis back cover accommodates arcing loads. This SKU lacks the -S magnet option, so it cannot accept CMSG, DMSG, or EMSG position sensors.
Built with a riveted rolling-packed aluminum barrel and a 20 um hard-chrome plated carbon-steel rod (Ø16 mm), it handles pressures of 0.2-1.0 MPa. The fixed rubber bumper absorbs end-of-stroke impact without adjustable cushioning. Overall length equals A + 2 x stroke, making the body longer than a double-acting MBL. The G1/4 port matches the 40mm bore specification.
Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X30CA Technical Specifications
| Model | Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X30CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 MTBL40X30CA
| MTBL | Single acting, pull (spring extend) aluminum-barrel mini cylinder. |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×30 | 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 MTBL40X30CA Is Used
Packaging Flap Folding
Draws corrugated carton flaps closed on a case sealer using the 339.1 N pull force, with the CA clevis allowing the rod to swing as the flap articulates.
Textile Beam Tensioning
Pulls a warp beam tensioning arm back into its locked seat during a machine changeover, relying on the fail-safe extended home to keep the beam loose when air is removed.
Stamping Strip Ejection
Retracts a latch to release a metal scrap stripper plate in a press line, using the 30mm stroke to clear the die area before the upstroke.
Is the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X30CA the Right Cylinder?
To size this 40mm bore correctly, note the neighbouring options: stepping down to a 32mm bore drops the 0.5 MPa pull force to 224.8 N, while a 40mm bore provides 339.1 N. As the largest single-acting pull bore available, there is no larger MBL pull size. Choose MTBL over the MSBL push type when your mechanism requires a fail-safe extended state upon air loss. Remember the 0.2 MPa minimum pressure required to overcome the spring. Apply no external load during the spring-extend return stroke. For replacements, match the 40mm bore, 30mm stroke, G1/4 port, PT thread, CA pivot cover, and no-magnet configuration.
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 MTBL40X30CA FAQ
The usable pull force (net of the return spring) is 339.1 N at 0.5 MPa and 550.1 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the internal spring and retract the rod.
No. This specific SKU lacks the built-in -S magnet, meaning it cannot accept AirTAC CMSG (reed), DMSG, or EMSG (electronic) sensor switches. You would need the MTBL40X30SCA variant for position detection.
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