Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD20X300S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø20mm bore and 300mm 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
- Stroke300 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 MBLD20X300S
The AirTAC MBLD20X300S is a double-acting, double-rod aluminum mini cylinder with a 20mm bore and 300mm stroke. Because a rod exits both ends, the annulus area is identical on extend and retract, yielding 132N of force each way at 0.5 MPa. The built-in magnet (-S) supports CMSG reed and DMSG/EMSG electronic sensors for position detection. A 300mm stroke is the absolute maximum standard length for this 20mm bore.
This configuration uses a fixed rubber bumper to soften end-of-travel impacts rather than an adjustable air cushion. The riveted rolling-packed aluminum barrel and 20um hard-chrome carbon-steel rod provide compact durability. Because the rear rod protrudes, you must leave overall clearance equal to A + 2 x stroke. The twin rods help resist torsional loads, but with an 8mm rod at 300mm, an external guide is still required to prevent rod bending.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø20 mm |
| Stroke | 300 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 MBLD20X300S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 20 | Bore size in mm. |
| ×300 | 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 MBLD20X300S Is Used
PCB Edge Routing
Drives a light routing spindle on one end while the opposite rod carries a position flag, using the 132N both-way force for consistent PCB edge profiling.
Label Applicator
Twin rods prevent yaw during 300mm travel, keeping a labeling head perfectly parallel to a moving web without torsional twist.
IC Test Handler
Cycles a test probe over 300mm; the DMSG electronic sensor tracks exact position while the equal retract speed ensures rapid, balanced tool withdrawal.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300S the Right Cylinder?
Stepping down, the MBLD20X300S is the longest standard stroke for this bore; if you need less travel, choose any shorter 20mm stroke which maintains the same 132N both-way force. Stepping up to the 25mm bore raises the both-way force to 206N at 0.5 MPa. Unlike the single-rod MBL which offers higher push force, this double-rod MBLD provides equal push and pull. If you need adjustable cushioning instead of the fixed rubber bumper, select the MBLCD variant.
Mounting is limited to Basic, FA flange, or LB foot brackets; there is no SDB pivot or back-cover option. A plain MBLD does not hold position without live air—the rod drifts, so use an external lock for holding. To replace this unit, match the 20mm bore, 300mm stroke, G1/8 port, PT thread, and the -S magnet. At 300mm, side-load bending is a major risk; always use an external linear guide to support the load.
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 MBLD20X300S FAQ
Because a rod occupies both sides of the piston, the push and pull forces are equal: 132N at 0.5 MPa, 185N at 0.7 MPa, and a maximum theoretical 27kgf at 1.0 MPa.
A rod exits both ends, providing equal extend/retract force and speed. You can mount a workpiece on one end and a cam or position flag on the rear rod. However, it lacks a back-cover mount and requires rear-rod clearance.
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