Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL25X50CA
The AirTAC Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL25X50CA is a genuine single acting, pull (spring extend) aluminum-barrel mini round cylinder with a Ø25mm 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.
- BoreØ25 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 MTBL25X50CA
The AirTAC MTBL25X50CA is a compact single-acting pull-type mini cylinder with a 25 mm bore and 50 mm stroke. Air retracts the rod while an internal spring extends it, yielding a usable pull force of 132.6 N at 0.5 MPa. The riveted rolling-packed aluminum barrel keeps weight low for tight spaces, and the 20 µm hard-chrome carbon-steel rod resists wear. It uses a fixed rubber bumper for end-of-stroke damping.
This CA variant features a pivot/clevis back cover that swings on a pin to accommodate arcing loads. The overall length follows A + 2 x stroke, and the heterogeneous two-way grease-retaining piston seal ensures stable lubrication. Without a -S code, this SKU cannot accept a CMSG or DMSG position sensor.
Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL25X50CA Technical Specifications
| Model | Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL25X50CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 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 (Ø25mm)
| Pressure | Pull force (net of spring) |
|---|---|
| 0.5 MPa | 132.6 N |
| 0.7 MPa | 215.0 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 MTBL25X50CA
| MTBL | Single acting, pull (spring extend) aluminum-barrel mini cylinder. |
|---|---|
| 25 | 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 MTBL25X50CA Is Used
Packaging Flap Tensioning
Draws a sealing arm inward on a 50 mm pull stroke to tension packaging film, relying on the 132.6 N pull force at 0.5 MPa to hold the web taut before a heat sealer closes.
Battery Cell Seating
Pulls a lithium-ion cell down into a test fixture pocket; the CA clevis allows the arm to arc slightly without binding as the cell seats under spring-extend fail-safe pressure.
Textile Draw-Off Mechanism
Retracts a yarn guide roller out of the thread path on a weaving loom, using the single-acting pull stroke to draw the mechanism clear when air is applied.
Is the Airtac MTBL Single Acting Aluminum Alloy Mini Cylinder MTBL25X50CA the Right Cylinder?
For sizing, the 20 mm bore neighbor offers 84.8 N at 0.5 MPa, while the 32 mm bore provides 224.8 N, letting you step down or up if 132.6 N is insufficient. Choose this MTBL pull type over the MSBL push type when a fail-safe extended home position is required upon air loss. It needs a minimum of 0.2 MPa to overcome the return spring and uses a 3/2 valve. Apply no external load during the spring-extend return stroke. Replacement match: 25 mm bore, 50 mm stroke, G1/8 port, PT thread, CA pivot cover, 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 MTBL25X50CA FAQ
This single-acting pull cylinder requires a minimum of 0.2 MPa to overcome the return spring. It generates a usable pull force of 132.6 N at 0.5 MPa and 215 N at 0.7 MPa. Because the spring opposes the air stroke, this net pull force is lower than a same-bore double-acting MBL.
No, this specific SKU lacks the -S code, so it has no built-in magnet and cannot accept AirTAC CMSG, DMSG, or EMSG sensor switches. Additionally, on air loss, the internal spring drives the rod to its extended fail-safe home position, meaning it will not hold a mid-stroke load without continuous air pressure.
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