Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X75CA
The AirTAC Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X75CA is a genuine single acting, pull (spring extend) aluminum-barrel mini round cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 MTBL40X75CA
The AirTAC MTBL40X75CA is a 40 mm bore, 75 mm stroke single-acting pull-type cylinder with a spring-extend return. Pressurized air retracts the rod to perform useful work, while an internal spring drives it back out to a fail-safe extended home when air is released. It delivers a usable pull force of 339.1 N at 0.5 MPa and 550.1 N at 0.7 MPa, making it the highest-force option in the MTBL series. The 75 mm stroke is well-suited for drawing mechanisms closed over a moderate distance.
This SKU features a CA pivot/clevis back cover, allowing the cylinder to swing on a pin to accommodate arcing or angular loads. It uses a G1/4 port and an M12x1.25 rod-end thread. Because this configuration lacks the -S magnet code, it cannot accept a CMSG, DMSG, or EMSG position sensor. The riveted rolling-packed aluminum barrel and 20 um hard-chrome plated carbon-steel rod provide durability in compact spaces, while the fixed rubber bumper absorbs end-of-stroke impact without adjustable cushioning.
Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X75CA Technical Specifications
| Model | Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X75CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MTBL40X75CA
| MTBL | Single acting, pull (spring extend) aluminum-barrel mini cylinder. |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×75 | 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 MTBL40X75CA Is Used
Furnace Door Sealing
Pulls a heavy industrial furnace door tightly closed against its frame using 339.1 N of force at 0.5 MPa, with the spring-extend function safely opening the door when air pressure is dropped.
Stamping Blank Holder
Draws a metal blank into a stamping press die over a 75 mm stroke. The CA pivot bracket accommodates the angular movement of the holding linkage during the draw cycle.
Tensioning Headblock
Maintains tension on a packaging wire or cable puller. The fail-safe extended state releases the tension immediately if the plant air supply is interrupted, preventing material snapping.
Is the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL40X75CA the Right Cylinder?
Choose this 40 mm bore when you need the maximum single-acting pull force in the MTBL range (339.1 N at 0.5 MPa). If your application requires less force, stepping down to the 32 mm bore yields 224.8 N at 0.5 MPa; there is no larger standard MTBL bore. Compared to the MSBL push type, this MTBL fails safe in the extended position, which is critical for mechanisms that must lock or rest open during an air loss event. Unlike a double-acting MBL, it requires only a 3/2 valve and one air line to the pull side. Ensure a minimum operating pressure of 0.2 MPa is maintained to overcome the return spring, and never apply an external load during the unpowered spring-extend return stroke. For a 75 mm stroke on this compact body, minimize side-loading to prevent rod bending by using the CA clevis to self-align. Replacement matches must specify the 40 mm bore, 75 mm stroke, PT port thread, CA pivot back cover, and no magnet.
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 MTBL40X75CA FAQ
This 40 mm bore cylinder generates a usable pull force of 339.1 N at 0.5 MPa and 550.1 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 internal return spring. The maximum force is 550.1 N (approximately 56.1 kgf).
No, this specific SKU lacks the -S magnet option, so it cannot accept CMSG, DMSG, or EMSG electronic or reed sensors. Regarding fail-safe operation, it is a single-acting pull type: air retracts the rod, and the internal spring extends it. Upon air loss, the spring pushes the rod out to a defined extended home position.
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