Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40
The AirTAC Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø50mm bore and 40mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 881 N each way at 0.5 MPa. Adjustable air cushion (both ends).
- BoreØ50 mm
- Stroke40 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM14×1.5
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40
The AirTAC MBLCD50X40 is a compact double-acting twin-rod mini cylinder featuring an adjustable air cushion at both ends. Because a Ø16 mm rod exits both end covers, the effective piston area is identical on extend and retract, yielding 881 N of force each way at 0.5 MPa. The 40 mm stroke is well suited to short, high-cycle reciprocating motions where maintaining equal velocity in both directions is critical.
Screw-tunable end-of-stroke deceleration protects the end covers during heavier twin-rod moves, a distinct advantage over the fixed rubber bumper found on the base MBLD. Note that this specific SKU lacks a built-in magnet (-S) and therefore cannot accept a CMSG, DMSG, or EMSG position sensor. Overall length equals the base body dimension plus twice the stroke, so you must leave physical clearance for the rear protruding rod to avoid collision.
Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40 Technical Specifications
| Model | Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø50 mm |
| Stroke | 40 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 | Adjustable air cushion (both ends) |
| 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 MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40
| MBLCD | MBLCD aluminum-barrel double-rod mini cylinder with adjustable cushion. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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: MBLD (double rod, fixed bumper), MBLC (single rod + cushion), MBL (single rod).
Where the Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40 Is Used
Injection Mold Ejection
Drives an ejection plate with 881 N of equal force on advance and retract, ensuring molded parts are pushed evenly without jerky acceleration on the return stroke.
Print Registration Guide
Uses the twin-rod anti-rotation property to move a paper edge guide 40 mm. The adjustable cushion halts the 1233 N force smoothly at stroke ends to prevent web tearing.
Dual-Side Labeling Head
Applies labels from one rod end while a mechanical flag triggers a gluing station on the rear rod, maintaining perfect synchronization via the shared piston.
Is the Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40 the Right Cylinder?
Stepping down to the Ø40 bore provides 528 N both ways at 0.5 MPa, while stepping up to the Ø63 bore yields 1457 N both ways. Choose this Ø50 model when your mechanism requires roughly 88 N of payload resistance per side. The MBLCD is preferred over the single-rod MBLC when a cam or secondary tool must mount on the rear rod, and over the MBLD when moving loads fast enough to warrant screw-tunable cushioning. Mounting is restricted to Basic, FA flange, or LB foot; there is no SDB pivot or back-cover option. A plain cylinder drifts without live air—the cushion only decelerates near the ends and does not lock position, so use an external guide for holding. Replacement match: 50 mm bore, 40 mm stroke, G1/4 port, M14x1.5 rod thread, PT thread form, no 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 MBLCD Aluminum Alloy Mini Cylinder MBLCD50X40 FAQ
Because the double-rod design has a rod on both sides, push and pull forces are equal: 881 N at 0.5 MPa, 1233 N at 0.7 MPa, and a theoretical maximum of 180 kgf at 1.0 MPa.
No. This SKU lacks the built-in -S magnet, so CMSG reed or DMSG/EMSG electronic switches cannot detect piston position. You must select an MBLCD50X40S variant to use sensors.
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