Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 15mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ40 mm
- Stroke15 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U
The AirTAC MBL40X15U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It features a 40mm bore and a short 15mm stroke, generating 628N of push force and 528N of pull force at 0.5 MPa. The U flat-end back cover provides a rigid, fixed rear mounting surface for straightforward in-line installation.
This genuine AirTAC unit utilizes a riveted rolling-packed aluminum barrel that crimps the front and rear covers directly to the tube, yielding a lighter body that is not designed to be disassembled like a tie-rod cylinder. Internal longevity is handled by a heterogeneous two-way piston seal that retains grease, paired with a carbon-steel piston rod plated with 20 um of hard chrome for wear and corrosion resistance. Because this specific SKU lacks the -S suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor switch.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| 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 | Rubber bumper (MBLC variant: adjustable air cushion) |
| Max stroke | Up to 500 mm |
Specifications follow the official AirTAC MBL series datasheet. Confirm against the product label before installation. Standard stroke to 500 mm (special order to 800 mm). Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: MBLC (adjustable cushion), MBLD (double rod), MBLJ (adjustable stroke), MSBL/MTBL (single acting).
Where the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U Is Used
Injection Mold Ejection
Uses the 628N push force at 0.5 MPa to knock small plastic parts out of tight mold cavities where a standard profile cylinder is too bulky.
Carton Flap Folding
Executes rapid 15mm tucks on packaging lines, leveraging the short stroke and U flat-end cover for rigid direct mounting on folding jigs.
PCB Test Fixtures
Applies precise 528N pull force to pull test heads away from circuit boards, benefiting from the grease-retaining two-way piston seal for millions of cycles.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U the Right Cylinder?
If your application requires less force, step down to the 32mm bore, which provides 402N of push force at 0.5 MPa. If you need more power, step up to the 50mm bore, delivering 981N of push force at 0.5 MPa. The base MBL relies on a fixed rubber bumper to soften end-of-stroke impacts; for heavier or faster moving masses, select the MBLC variant, which features an adjustable air cushion.
Remember that a plain MBL does not hold its load or position when air pressure is lost or exhausted; the rod will drift or drop. The rubber bumper only softens the end-of-stroke impact and is not a lock or brake. If your mechanism must hold position without live pressure, specify an external rod lock or a pilot-operated check valve. This exact replacement match is: 40mm bore, 15mm stroke, G1/4 port size, PT port thread, U flat-end back cover, no mounting accessory, and no built-in magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB / FA / SDB) and back cover (CA pivot / U flat-end).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15U FAQ
At 0.5 MPa, this 40mm bore cylinder outputs 628N push and 528N pull. At 0.7 MPa, the push force is 880N, with a maximum theoretical force of 128 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
No, this base MBL model has a fixed rubber bumper, not an adjustable air cushion (you would need the MBLC variant for that). Additionally, because this SKU lacks the -S suffix for a built-in magnet, you cannot mount a CMSG, DMSG, or EMSG sensor switch to detect rod position.
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1-Year Warranty
Covers non-human-caused product damage.
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