Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD20X125S 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 MBLD20X125S
The AirTAC MBLD20X125S is a compact, double-acting double-rod aluminum mini cylinder featuring a 20mm bore and 125mm stroke. Because a rod exits both end covers, the annulus area is identical on both sides, yielding exactly 132 N of force at 0.5 MPa for both extension and retraction. The built-in magnet (-S) allows a CMSG reed or DMSG/EMSG electronic sensor to track rod position. Equipped with a fixed rubber bumper, it handles light-duty positioning where space is tight.
The twin-rod design keeps light loads guided against rotation better than a single rod. You can mount a workpiece on the front rod and a position flag or cam on the rear rod, though you must leave rear-rod clearance as overall length equals A plus 2 x stroke. The riveted rolling-packed aluminum barrel and 20 um hard-chrome plated carbon-steel rod provide durable service in tight spaces.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125S |
|---|---|
| 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 MBLD20X125S
| 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 MBLD20X125S Is Used
PCB Edge Deburring
Drives a small deburring blade on the front rod and a position flag on the rear rod, applying 132 N of equal force to scrape PCB edges cleanly.
Microchip Test Handler
Uses the twin-rod anti-rotation stability to press a test probe onto microchips, relying on the -S magnet to confirm contact position.
Thin Film Cutting
Mounts a slitting blade on one end and a cam on the other, maintaining consistent blade tracking across a 125mm stroke for thin film slitting.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X125S the Right Cylinder?
Stepping down to the MBLD variant is not an option below 20mm, but stepping up to the 25mm bore yields 206 N at 0.5 MPa if you need more push. Choose this 20mm model for light mechanisms under 132 N. Mounting is limited to Basic, FA flange, or LB foot; there is no back-cover or SDB pivot option. The fixed rubber bumper softens end-of-stroke impact but does not lock the rod—drift occurs without live air. To replace this unit, match the 20mm bore, 125mm stroke, G1/8 port, PT thread, and the -S magnet. At 125mm, the 8mm rod is relatively slender; use an external guide to prevent bending under side loads.
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 MBLD20X125S FAQ
The MBLD20X125S provides equal force in both directions because the rod exits both ends. It delivers 132 N at 0.5 MPa, 185 N at 0.7 MPa, and a maximum theoretical 27 kgf at 1.0 MPa.
The -S suffix means a built-in magnet for AirTAC CMSG reed or DMSG/EMSG electronic sensors to detect position. The double-rod design means a rod protrudes from both ends, giving equal extend/retract force and allowing a cam or flag to be mounted on the rear rod.
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