Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20
The AirTAC Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø50mm bore and 20mm 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
- Stroke20 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 MBLD50X20
The AirTAC MBLD50X20 is a double-acting, double-rod aluminum mini cylinder engineered to deliver identical thrust in both directions. Because a Ø16 mm carbon-steel rod protrudes from both end covers, the annular piston area is symmetrical, generating 881 N of force at 0.5 MPa on both extend and retract. The 20 mm stroke suits high-force short-travel tasks. The riveted rolling-packed barrel and grease-retaining piston seal ensure reliable service in tight spaces.
This configuration uses a G1/4 port and M14x1.5 rod-end thread. It features a fixed rubber bumper to soften end-of-travel impacts rather than an adjustable air cushion. Because this specific SKU lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG position sensors. The twin rods provide inherent anti-rotation guidance, allowing you to mount a workpiece on one side and a cam or position flag on the opposing rear rod.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø50 mm |
| Stroke | 20 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 MBLD50X20
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 MBLD50X20 Is Used
Injection Mold Ejection
Drives a short 20 mm knockout pin stroke on an injection molding press, using the 881 N equal both-way force to eject parts and retract the tooling at identical speeds.
PCB Edge Guide Trimming
Trims uneven edges on printed circuit board panels, where the twin rods keep the cutting shear guided against rotation across the compact 20 mm travel.
Dual-Side Labeling Cam
Mounts the applicator blade on the front rod and a mechanical trip-cam on the rear rod to trigger a downstream glue valve, exploiting the synchronized double-rod extension.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20 the Right Cylinder?
When sizing this 50 mm bore, stepping down to the 40 mm bore reduces your equal both-way force to 528 N at 0.5 MPa, whereas stepping up to the 63 mm bore yields 1457 N at 0.5 MPa. Choose the MBLD over the single-rod MBL when your mechanism requires equal push and pull velocities or a rear cam. If your machine needs adjustable end-cushioning to dissipate kinetic energy, select the MBLCD variant instead. Mounting is restricted to Basic, FA flange, or LB foot brackets; there is no SDB pivot or back-cover option. Remember that the fixed rubber bumper is not a locking device—the cylinder drifts without live air pressure, so fit an external lock for position holding. To replace this unit, match the 50 mm bore, 20 mm stroke, G1/4 port, PT thread, and no-magnet configuration.
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 MBLD50X20 FAQ
Because the double-rod design creates equal annular areas on both sides, the push and pull forces are identical: 881 N at 0.5 MPa, 1233 N at 0.7 MPa, and a maximum theoretical 180 kgf at 1.0 MPa.
No. This MBLD50X20 SKU lacks the built-in magnet (-S suffix), so it cannot accept CMSG, DMSG, or EMSG electronic or reed switches. You must utilize the rear rod for external mechanical flags or upgrade to an -S model for magnetic sensing.
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