Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X250
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X250 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 250mm 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
- Stroke250 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 MBLD40X250
The AirTAC MBLD40X250 is a double-acting, double-rod aluminum mini cylinder engineered for equal thrust in both directions. Because a Ø16mm carbon-steel rod exits both end covers, the annular piston area is identical on extend and retract, yielding 528N of force each way at 0.5 MPa. The 250mm stroke is well within the 500mm maximum for this bore, making it ideal for longer linear transfers. The riveted rolling-packed barrel keeps the body light for tight machine layouts.
This SKU has a standard PT thread and no built-in magnet (-S omitted), meaning it cannot accept a CMSG reed or DMSG/EMSG electronic position sensor. Impact at the stroke ends is absorbed by a fixed rubber bumper. Because a rod protrudes from the rear, overall length equals the base body length plus twice the stroke—rear clearance must be accounted for in your design. The twin-rod architecture inherently resists torsional rotation better than a single-rod unit.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X250 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X250 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 250 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 MBLD40X250
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 MBLD40X250 Is Used
Pallet Push-Off Station
Uses the 528N equal retract force to positively eject a 250mm stroke wood pallet from a packaging conveyor without dropping speed.
Twin-Spindle Drill Head
Mounts a drill on the front rod and a return-spring flag on the rear protruding rod to trigger a limit switch at 250mm extension.
Web Edge Guide Frame
Counter-rotates a fabric web guide roller using the torsional rigidity of the double-rod assembly to maintain tracking on a textile line.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X250 the Right Cylinder?
If 528N is excessive for your payload, step down to the MBLD32 bore, which provides 346N at 0.5 MPa. If your mechanism requires more push, the MBLD50 offers 881N. For this 250mm stroke, the twin rods provide anti-rotation guidance, but the small 16mm rod diameter means long-stroke side loads still require an external linear guide to prevent bending. Mounting is limited to Basic, FA flange, or LB foot brackets—there is no SDB pivot or back-cover option. Note that the fixed rubber bumper softens end impact but does not lock the rod; the cylinder drifts without live air. To replace this unit, match the 40mm bore, 250mm stroke, G1/4 port, PT thread, and no-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 MBLD40X250 FAQ
The MBLD40X250 provides equal force in both directions because the rod occupies both piston sides. Output is 528N at 0.5 MPa, 739N at 0.7 MPa, and a maximum theoretical 108kgf (approx 1059N) at 1.0 MPa.
No. This specific SKU lacks the -S code, meaning no internal magnet is fitted. To use CMSG reed or DMSG/EMSG electronic switches for rod position detection, you must order the MBLD40X250S variant.
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