Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X30
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X30 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 MBLD40X30
The AirTAC MBLD40X30 is a double-acting, double-rod aluminum mini cylinder engineered for applications requiring identical push and pull dynamics. Because a Ø16 mm carbon-steel rod with 20 µm hard-chrome plating exits both end covers, the annular piston area is identical on both sides, yielding an equal 528 N of force in both directions at 0.5 MPa. The 30 mm stroke is ideal for short, high-cycle clamping or ejecting motions where a compact footprint is required.
This PT-threaded SKU lacks a built-in magnet (-S), meaning it cannot accept CMSG, DMSG, or EMSG position sensors. It features a fixed rubber bumper to soften end-of-stroke impact and relies on a riveted rolling-packed barrel with a grease-retaining two-way piston seal. The twin-rod design allows you to mount a workpiece on the front rod and a mechanical cam or position flag on the rear rod, simultaneously improving anti-rotation resistance for guided loads.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X30 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 30 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 MBLD40X30
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 MBLD40X30 Is Used
Injection Mold Ejection
Provides 528 N of equal both-way force to eject small plastic parts from a 30 mm stroke mold bed, using the rear rod to drive a synchronized cutoff knife.
Print Head Registration
Shifts a printing roller guide 30 mm with identical 739 N push/pull force at 0.7 MPa, ensuring precise registration without rotational drift.
PCB Test Fixture
Drives a 40 mm bore double-rod probe plate for microswitch testing, using the fixed rubber bumper to absorb high-frequency 30 mm stroke impacts.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X30 the Right Cylinder?
When sizing this 40 mm bore model, stepping down to the 32 mm bore reduces your equal both-way force to 346 N at 0.5 MPa, while stepping up to the 50 mm bore increases it to 881 N. If your application requires adjustable air cushioning rather than a fixed rubber bumper, choose the MBLCD variant. For single-rod standard extensions, the MBL series is the equivalent.
Mounting is limited to Basic, FA (flange), or LB (foot) brackets; there is no back-cover (CA/U) or SDB pivot option available for this double-rod body. A plain MBLD does not hold position without continuous live air pressure—the rod will drift. For exact replacement, match the 40 mm bore, 30 mm stroke, G1/4 port, PT thread, and confirm no magnet is required.
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 MBLD40X30 FAQ
Because the MBLD40X30 is a double-rod cylinder, the annular area is equal on both sides, meaning push and pull forces are identical: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum theoretical 108 kgf at 1.0 MPa.
A double-rod cylinder has a rod exiting both ends, providing equal extend/retract force and allowing a rear-mounted cam or flag. This specific MBLD40X30 SKU lacks the -S magnet, so it cannot accept CMSG (reed) or DMSG/EMSG (electronic) sensors.
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