Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X50SU
The AirTAC Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X50SU is a genuine single acting, pull (spring extend) aluminum-barrel mini round cylinder with a Ø32mm bore and 50mm 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
- Stroke50 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 MTBL32X50SU
The AirTAC MTBL32X50SU is a compact single-acting pull-type mini cylinder where air retracts the rod and an internal spring extends it. The 32mm bore generates 224.8 N of usable pull force at 0.5 MPa, drawing mechanisms closed over a 50mm stroke. The U code specifies a flat-end back cover for rigid rear mounting, while the S code adds a built-in magnet for position sensing.
This configuration provides a fail-safe extended home position upon air loss, making it ideal for tensioning or seating tasks that must rest open. The body uses a riveted rolling-packed aluminum barrel to save space, and the 12mm carbon-steel rod features a 20 um hard-chrome plating to resist wear. Because it is single-acting, it relies on a fixed rubber bumper at stroke ends rather than an adjustable air cushion.
Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X50SU Technical Specifications
| Model | Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X50SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø32 mm |
| Stroke | 50 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 MTBL32X50SU
| MTBL | Single acting, pull (spring extend) aluminum-barrel mini cylinder. |
|---|---|
| 32 | Bore size in mm (20/25/32/40). |
| ×50 | 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 MTBL32X50SU Is Used
Packaging Flap Sealing
Pulls cardboard carton flaps closed during a 50mm travel to apply adhesive, using the 224.8 N pull force at 0.5 MPa before releasing to an extended rest.
PCB Test Socket Tensioning
Draws a test fixture cover down onto a printed circuit board, relying on the fail-safe extended home to clear the board when air pressure drops.
Textile Loom Draw-in
Tensions and pulls yarn guides into the closed loom position, using the integrated magnet to confirm retraction before the weaving cycle starts.
Is the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL32X50SU the Right Cylinder?
This 32mm bore provides 224.8 N of pull force at 0.5 MPa. If your pulling task requires less force, the 25mm bore offers 132.6 N at the same pressure; for heavier drawing loads, step up to the 40mm bore which provides 339.1 N. The MTBL pull-type gives a fail-safe extended rest state, contrasting with the MSBL push-type which fails retracted, or the double-acting MBL which holds position only with continuous air.
A minimum operating pressure of 0.2 MPa is required to overcome the return spring. Ensure no external load is applied during the spring-extend return stroke to prevent buckling. This SKU uses a G1/8 port with PT threads, an M10x1.25 rod end, and a U flat-end cover. The built-in magnet supports AirTAC CMSG (reed), DMSG, and EMSG (electronic) switches.
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 MTBL32X50SU FAQ
The usable pull force is 224.8 N at 0.5 MPa and 363 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the internal spring and retract the rod.
Air retracts the rod for the work stroke, but on air loss the spring drives it to an extended fail-safe home. The built-in -S magnet allows AirTAC CMSG (reed) or DMSG/EMSG (electronic) switches to detect rod position.
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