Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X40S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X40S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 40mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 528 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ40 mm
- Stroke40 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM12×1.25
- 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 MBLD40X40S
The AirTAC MBLD40X40S is a compact, double-acting double-rod aluminum mini cylinder engineered to deliver 528 N of force in both extend and retract directions at 0.5 MPa. Because a Ø16 mm carbon-steel rod with 20 μm hard-chrome plating protrudes from both end covers, the annular piston area is identical on each side. This guarantees equal push and pull thrust, making the 40 mm stroke highly effective for short-transfer positioning tasks where symmetrical load movement is critical.
The built-in -S magnet enables position detection using AirTAC CMSG (reed), DMSG, or EMSG (solid-state electronic) sensor switches. A defining mechanical benefit of this through-rod layout is the ability to mount the primary workpiece on the front rod while attaching a position flag, cam, or secondary mechanism to the rear rod. The riveted rolling-packed aluminum barrel houses a fixed rubber bumper to soften end-of-stroke impact, and the overall length equals A + 2 x stroke, requiring rear-rod clearance in your machine layout.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X40S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 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 (Ø40mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 MBLD40X40S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | 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: MBLCD (double rod, adjustable cushion), MBLC (single rod + cushion), MBL (single rod).
Where the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X40S Is Used
PCB Edge Connector Seating
Using the 528 N equal both-way thrust to press connectors onto PCB edges, while the rear rod simultaneously trips a limit switch to confirm press completion.
Labeling Machine Transfer
Shuttling label cassettes back and forth over a 40 mm stroke, relying on the twin-rod guidance to prevent torsional twist on the label feed head.
Chip Sorter Reject Gate
Actuating a diverter gate on a semiconductor handling line, where the fixed rubber bumper absorbs the rapid 739 N directional reversals at 0.7 MPa.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X40S the Right Cylinder?
When sizing this 40 mm bore model, stepping down to the 32 mm bore yields 346 N at 0.5 MPa, while stepping up to the 50 mm bore provides 881 N. Choose this MBLD double-rod variant over the single-rod MBL when your mechanism requires equal thrust both ways or needs a rear rod for dual-side guidance and anti-rotation. If your application demands adjustable air cushioning rather than a fixed rubber bumper, select the MBLCD variant instead.
Mounting options are limited to Basic, FA (flange), or LB (foot) brackets; MBLD does not support SDB pivot or back-cover mounts. This SKU features a default PT (tapered) port thread and a G1/4 port. Note that a plain MBLD does not hold position without live air—the rod will drift; use an external locking device if mid-stroke holding is required. For replacement, match the 40 mm bore, 40 mm stroke, PT thread, and -S 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 MBLD40X40S FAQ
Because a rod exits both ends, the effective piston area is identical in both directions. The force is exactly equal for extend and retract: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum theoretical 108 kgf (1058 N) at 1.0 MPa.
The -S suffix indicates a built-in magnet for AirTAC CMSG (reed) or DMSG/EMSG (electronic) sensor switches. The double-rod design means a rod protrudes from both ends, allowing you to mount a workpiece on the front and a cam or position flag on the rear, while providing better anti-rotation resistance than a single-rod cylinder.
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