Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X400S
The AirTAC Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X400S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø50mm bore and 400mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 881 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ50 mm
- Stroke400 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM14×1.5
- 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 MBLD50X400S
The AirTAC MBLD50X400S is a double-acting, double-rod aluminum mini cylinder featuring a 50mm bore and 400mm stroke. Because a rod exits both ends, the annulus area is identical on both sides, yielding exactly 881 N of force at 0.5 MPa on both extend and retract. The built-in magnet (-S) supports CMSG reed and DMSG/EMSG electronic sensors for position feedback. A 400mm travel suits long-indexing tasks like transferring printed circuit boards or large packaging trays.
The twin-rod layout provides inherent anti-rotation stability, allowing you to mount a workpiece on the front rod and a cam or position flag on the rear rod. The riveted rolling-packed aluminum barrel keeps the body compact, while the 20 um hard-chrome plating on the carbon-steel rod resists wear. End-of-stroke impact is absorbed by a fixed rubber bumper. Note that overall length equals A + 2 x stroke, so you must leave rear-rod clearance in your machine layout.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X400S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X400S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø50 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 500 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 (Ø50mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 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 MBLD50X400S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×400 | 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 MBLD50X400S Is Used
PCB Conveyor Transfer
Drives a 400mm indexing arm to shuttle printed circuit boards between SMT inspection stations, using the equal both-way 881 N force to push and pull the carrier smoothly without speed variation.
Textile Beam Reversal
Actuates a long-stroke tensioning gate on a textile weaving machine, utilizing the rear rod end to mount a mechanical cam that triggers a yarn feed cutoff at full extension.
Large Carton Flap Folder
Folds heavy corrugated carton flaps on a continuous packaging line, where the twin-rod anti-rotation property keeps the folding paddle perfectly aligned over the 400mm travel.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X400S the Right Cylinder?
For 881 N both-way force, this 50mm bore is optimal. If you need less force, the 40mm bore provides 528 N at 0.5 MPa; if you need more, the 63mm bore offers 1457 N at 0.5 MPa. This base MBLD uses a fixed rubber bumper—if you need adjustable air cushioning to soften high kinetic energy at 400mm travel, step up to the MBLCD variant. Mounting is limited to Basic, FA flange, or LB foot brackets; there is no back-cover or SDB pivot option. The PT thread port is G1/4. A plain MBLD does not hold position without live air—the rod drifts without an external lock. At 400mm stroke, the Ø16 rod is prone to bending under side loads, so an external guide rail is mandatory.
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 MBLD50X400S FAQ
Because the double-rod design has equal annulus areas on both sides, extend and retract forces are identical: 881 N at 0.5 MPa, 1233 N at 0.7 MPa, and a maximum theoretical output of 180 kgf at 1.0 MPa.
A single-rod cylinder has unequal push/pull forces, but this double-rod design provides equal force and speed both ways while allowing a cam or sensor flag on the rear rod. The -S indicates a built-in magnet for CMSG reed or DMSG/EMSG electronic sensors; without -S, no sensor can be fitted.
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