Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X25
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X25 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 25mm 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
- Stroke25 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 MBLD40X25
The AirTAC MBLD40X25 is a double-acting, double-rod aluminum mini cylinder featuring a 40 mm bore and 25 mm stroke. Because a Ø16 mm carbon-steel rod with 20 µm hard-chrome plating exits both end covers, the effective piston area is identical on extend and retract. This yields exactly 528 N of force each way at 0.5 MPa, making it ideal for short, symmetrical positioning tasks.
This configuration uses a PT tapered port thread and a fixed rubber bumper to soften end-of-stroke impacts. Lacking the -S code, this specific SKU has no built-in magnet and cannot host a CMSG or DMSG position sensor. The twin-rod architecture provides inherent anti-rotation resistance, allowing you to mount a workpiece on the front rod and a mechanical cam or limit flag on the rear.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X25 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X25 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 25 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 MBLD40X25
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 MBLD40X25 Is Used
PCB Edge Guiding
Drives a dual-sided guide rail on a conveyor to keep fiberglass panels aligned during etching, using the equal 528 N extend and retract force to prevent skewing.
Transfer Arm Ejection
Pushes a stamped metal part out of a press while the rear rod simultaneously trips a mechanical limit flag to count the cycle.
Connector Seating Jig
Applies 528 N of symmetrical pressure to seat multi-pin electronic connectors into housings without twisting the delicate 25 mm stroke payload.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X25 the Right Cylinder?
Select the 40 mm bore when an application demands roughly 528 N of symmetrical thrust. If you need less force, step down to the 32 mm bore (346 N at 0.5 MPa); if you require more, step up to the 50 mm bore (881 N at 0.5 MPa). For longer 300 mm+ strokes, external side-load guides are recommended to prevent rod bending despite the dual-rod support.
This base MBLD variant uses fixed rubber bumpers rather than adjustable air cushions—choose the MBLCD series if your cycle speeds demand tunable shock absorption. Mounting is restricted to Basic, FA flange, or LB foot brackets; there is no SDB pivot or back-cover option. A plain MBLD does not hold position without live air, so fit an external locking device for fail-safe holding. For a direct replacement, match the 40 mm bore, 25 mm 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 MBLD Dual Axis Type Mini Cylinder MBLD40X25 FAQ
Because the MBLD40X25 is a double-rod cylinder, the annulus area is equal on both sides. 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.
Unlike a single-rod MBL where push force exceeds pull force, the MBLD40X25 provides equal thrust and speed in both directions. The rear protruding rod can also drive a secondary mechanism or position flag, but note this SKU lacks a magnet for sensor feedback.
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