Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD63X20
The AirTAC Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD63X20 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø63mm bore and 20mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 1458 N each way at 0.5 MPa. Adjustable air cushion (both ends).
- BoreØ63 mm
- Stroke20 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 MBLCD63X20
The AirTAC MBLCD63X20 is a compact double-acting twin-rod mini cylinder featuring a 63mm bore and 20mm stroke. Because a carbon-steel rod protrudes from both end covers, the effective piston area is identical on both sides, yielding equal push and pull forces of 1457N at 0.5 MPa. This symmetrical thrust is crucial for mechanisms requiring consistent dynamics in both directions. The riveted aluminum barrel keeps the frame lightweight for tight spaces.
Unlike the fixed bumper on the base MBLD, this model integrates screw-tunable adjustable air cushions at both ends. This allows you to precisely dial in end-of-stroke deceleration, protecting the end covers from impact when moving heavy jigs at high speeds. Note that this specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors without a model change.
Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD63X20 Technical Specifications
| Model | Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD63X20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø63 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 | 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 (Ø63mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 1458 N |
| 0.7 MPa | 2041 N |
| Max (@1.0 MPa) | 297 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 MBLCD63X20
| MBLCD | MBLCD aluminum-barrel double-rod mini cylinder with adjustable cushion. |
|---|---|
| 63 | 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: MBLD (double rod, fixed bumper), MBLC (single rod + cushion), MBL (single rod).
Where the Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD63X20 Is Used
Stamping Press Ejection
Provides 1457N of equal both-way force to drive a short-stroke knockout pin in a sheet metal stamping die, using the rear rod to actuate a mechanical flag.
Guided Gripper Actuation
The twin-rod geometry resists torsional rotation, ensuring a heavy robotic gripper opens and closes symmetrically without twisting under high 297 kgf loads.
High-Flow Valve Operation
Tunable air cushions absorb the kinetic energy of rapidly cycling a large process valve actuator, preventing end-cover damage during 30-800 mm/s shifts.
Is the Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD63X20 the Right Cylinder?
For applications needing less force, stepping down to the 50mm bore yields 881N at 0.5 MPa, whereas stepping up is not possible as 63mm is the largest MBLCD size. Choose this MBLCD over the single-rod MBLC when you need a cam or second tool on the rear rod, or over the MBLD when your moving mass demands active cushioning rather than a passive rubber bumper. Mounting is strictly limited to Basic, FA flange, or LB foot styles; there is no SDB pivot or back-cover option. Remember that the cushion only decelerates the load near the end of travel—it is not a lock, so an external holding device is required if the rod must maintain position against a load with air removed. When replacing, match the 63mm bore, 20mm stroke, G1/4 port, PT thread, and 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 MBLCD63X20 FAQ
Because the rod exits both ends, the push and pull forces are equal: 1457N at 0.5 MPa, 2040N at 0.7 MPa, and a maximum theoretical 297 kgf at 1.0 MPa. This SKU does not have a built-in magnet (-S), so it cannot accept AirTAC CMSG, DMSG, or EMSG position sensors.
The screw-tunable air cushion at both ends lets you precisely control end-of-stroke deceleration for heavy twin-rod moves, absorbing kinetic energy that would quickly destroy a fixed rubber bumper on the base MBLD. It decelerates the load but does not lock it in place.
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