Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X125S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X125S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 125mm 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
- Stroke125 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 MBLD40X125S
The AirTAC MBLD40X125S is a compact double-acting double-rod aluminum mini cylinder engineered for equal force in both directions, delivering 528 N on extend and retract at 0.5 MPa. A single piston carries a Ø16 mm hard-chrome plated carbon-steel rod out of both end covers. The 125 mm stroke suits mid-travel positioning tasks, and because the annulus area is identical on both sides, push and pull speeds remain perfectly matched. The built-in magnet (-S) allows CMSG reed or DMSG/EMSG electronic sensors to track rod position.
This configuration uses a G1/4 port and M12x1.25 rod-end thread. The riveted rolling-packed aluminum barrel and grease-retaining piston seal ensure long service life, while the fixed rubber bumper absorbs end-of-travel impact. Overall length equals A plus 2x stroke, meaning the rear rod actively protrudes and requires clear space to prevent collision during operation.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X125S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X125S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 125 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 MBLD40X125S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×125 | 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 MBLD40X125S Is Used
PCB Edge Deburring Station
Drives a rotating brush on the front rod while the rear rod operates a position flag, using the 528 N equal both-way force to consistently process 125 mm board widths without speed mismatch.
Textile Loom Takedown Guide
Balances fabric tension across a 125 mm stroke, leveraging the twin-rod anti-rotation stability to keep the guide carriage perfectly aligned during high-speed weaving.
Semiconductor Wafer Cassette Transfer
Uses the built-in magnet for DMSG sensor feedback to shuttle a 125 mm stroke, moving cassettes with matched extend/retract speeds to prevent sudden acceleration jerks.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X125S the Right Cylinder?
For sizing flexibility, stepping down to the 32 mm bore drops the equal both-way force to 346 N at 0.5 MPa, while stepping up to the 50 mm bore raises it to 881 N. If your application requires adjustable air cushioning rather than the fixed rubber bumper found here, select the MBLCD variant. Mounting is limited to Basic, FA flange, or LB foot brackets; MBLD lacks back-cover or SDB pivot options. To replace this unit, match the 40 mm bore, 125 mm stroke, G1/4 port, PT thread, and the -S magnet. Note that a plain MBLD does not hold position without live air; the rod drifts without an external lock.
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 MBLD40X125S FAQ
Because a rod exits both ends, the effective piston area is identical in both directions. The force is equal for extend and retract: 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 cylinder with unequal push/pull areas, the double-rod design provides equal force and speed both ways, plus a rear rod for mounting a cam or secondary mechanism. The -S indicates a built-in magnet compatible with AirTAC CMSG (reed) and DMSG/EMSG (electronic) sensors for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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