Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD20X125 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø20mm bore and 125mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 132 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ20 mm
- Stroke125 mm
- Port sizeG1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- CushionFixed rubber bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125
The AirTAC MBLD20X125 is a double-acting, double-rod aluminum mini cylinder built for compact setups needing balanced bilateral motion. Because a Ø8mm carbon-steel rod (hard-chrome plated to 20um) protrudes from both end covers, the annulus piston area is identical on extend and retract. This yields exactly 132N of force both ways at 0.5MPa, making it perfect for 125mm travel tasks where push and pull dynamics must match perfectly.
The riveted rolling-packed barrel houses a fixed rubber bumper at each end to soften impact, while the heterogeneous two-way grease-retaining piston seal maintains lubrication. As this specific SKU lacks the -S magnet code, it cannot accept a CMSG reed or DMSG/EMSG electronic position sensor. The rear rod protrudes by the same 125mm stroke length, providing a secondary mounting point for a cam or position flag, though total length (A + 2 x stroke) demands rear clearance planning.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø20 mm |
| Stroke | 125 mm |
| Acting type | Double acting, double rod |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 300 mm |
Double-rod overall length = A + 2 × stroke — leave clearance for the rear rod. MBLD/MBLCD mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Output Force (Ø20mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 kgf |
A rod on both piston faces makes the annulus area equal, so extend and retract force (and speed) are the same. Actual usable force is lower due to friction.
Model Code: Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 20 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
| FA / LB | Mounting: FA flange or LB foot (no SDB on double-rod). |
Related: MBLCD (double rod, adjustable cushion), MBLC (single rod + cushion), MBL (single rod).
Where the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125 Is Used
PCB Depaneling Router
Drives a 125mm stroke cutting head with 132N of equal force both ways, ensuring smooth engagement and retraction without twisting the lightweight guide rail.
Semiconductor Test Handler
Uses the rear protruding rod to trip an external mechanical flag, confirming 125mm travel completion without needing a built-in cylinder sensor.
Label Applicator Press
Applies 185N at 0.7MPa to press labels onto small cartons, leveraging the twin-rod anti-rotation properties to keep the pad perfectly level over the 125mm stroke.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125 the Right Cylinder?
With 132N of force at 0.5MPa, stepping down to the neighbouring bore is not an option as 20mm is the smallest available. Stepping up to the 25mm bore provides 206N at 0.5MPa if your payload requires more push or pull. If your machine cycle creates severe end-of-stroke shocks, consider the MBLCD variant which adds an adjustable air cushion instead of this model's fixed rubber bumper.
Mounting is restricted to Basic, FA flange, or LB foot brackets; there is no SDB pivot or back-cover option for the double-rod design. The PT (tapered) port thread and G1/8 porting are standard for this 20mm bore. Note that a plain MBLD does not hold position without continuous live air pressure—the rod will drift if air is removed. For a direct replacement, match the 20mm bore, 125mm stroke, G1/8 port, PT thread, and lack of magnet.
Quick checklist
- ✓ Equal force both ways at your pressure
- ✓ Rear-rod clearance (length = A + 2 × stroke)
- ✓ Mounting: Basic / FA / LB only
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Leave clearance for the rear rod (length = A + 2 × stroke).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125 FAQ
Because the MBLD20X125 is a double-rod cylinder, the force is identical in both directions: 132N at 0.5MPa, 185N at 0.7MPa, and a maximum theoretical 27kgf (approx 265N) at 1.0MPa.
A rod exits both ends, meaning the effective piston area is equal on both sides, yielding equal extend and retract force and speed. The rear rod can drive a secondary mechanism or cam. This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors.
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