Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X40CA
The AirTAC Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X40CA is a genuine single acting, pull (spring extend) aluminum-barrel mini round cylinder with a Ø32mm bore and 40mm stroke, G1/8 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.
- BoreØ32 mm
- Stroke40 mm
- Port sizeG1/8
- Acting typeSingle acting, pull (spring extend)
- Rod threadM10×1.25
- CushionFixed rubber bumper
About the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X40CA
The AirTAC MTBL32X40CA is a compact single-acting pull-type mini cylinder with a 32mm bore and 40mm stroke. Air retracts the rod to develop 224.8N of usable pull force at 0.5 MPa, while an internal spring extends it back out. The CA back cover provides a pivot clevis that swings on a pin, making it ideal for arcing or angular load paths. It uses a G1/8 port and a 12mm carbon-steel rod plated with 20um hard chrome.
This SKU has no built-in magnet, so it cannot accept a CMSG or DMSG position sensor. Because it is single-acting, the overall length equals A + 2 x stroke, and a fixed rubber bumper absorbs end-of-stroke impact. On air loss, the spring drives the rod to a fail-safe extended home position, which is critical for mechanisms that must lock open or clear safely during an emergency stop.
Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X40CA Technical Specifications
| Model | Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X40CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Single acting, pull (spring extend) |
| 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 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 (Ø32mm)
| Pressure | Pull force (net of spring) |
|---|---|
| 0.5 MPa | 224.8 N |
| 0.7 MPa | 363.0 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 MTBL32X40CA
| MTBL | Single acting, pull (spring extend) aluminum-barrel mini cylinder. |
|---|---|
| 32 | Bore size in mm (20/25/32/40). |
| ×40 | 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 MTBL32X40CA Is Used
Packaging Flap Sealing
Draws a carton sealing arm closed against a spring hinge. The 224.8N pull force at 0.5 MPa securely seats the flap, while the fail-safe extended home reopens the arm safely if air pressure drops.
Textile Fabric Tensioning
Pulls a fabric guide roller back into a web-tensioning position. The CA pivot clevis accommodates the angular movement as the fabric tracks side-to-side during high-speed winding.
Press Brake Tool Clearing
Retracts a small locating pin on a metal press brake during stroke transitions. The spring-extend function pushes the pin back out into a defined resting position when the machine halts.
Is the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X40CA the Right Cylinder?
When sizing this 32mm bore, consider stepping down to the 25mm model if your load is lighter—it yields 132.6N of pull at 0.5 MPa and saves space. If your mechanism requires more power, stepping up to the 40mm bore provides 339.1N at 0.5 MPa. This MTBL pull-type differs from the MSBL push-type because its fail-safe home is extended, not retracted. Unlike a double-acting MBL, the return spring opposes the air stroke, meaning usable force is lower and requires a minimum 0.2 MPa operating pressure to overcome the spring. Never apply an external load during the spring-extend return stroke. For a direct replacement, match the 32mm bore, 40mm stroke, G1/8 PT thread, CA pivot cover, and confirm no magnet is needed.
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 MTBL32X40CA FAQ
This 32mm bore cylinder generates 224.8N of usable pull force at 0.5 MPa and 363N at 0.7 MPa. Because an internal spring opposes the air stroke, a minimum working pressure of 0.2 MPa is required to overcome the spring tension before the rod can retract.
No, this specific SKU lacks the built-in magnet required for sensor switches. To use AirTAC CMSG reed or DMSG electronic sensors, you must select the -S variant of this model. Additionally, this unit uses a CA pivot clevis for arcing loads and a fixed rubber bumper instead of an adjustable air cushion.
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