Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15SU
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15SU 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 MBL40X15SU
The AirTAC MBL40X15SU is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It provides 628 N of push force and 528 N of pull force at 0.5 MPa, making it a robust choice for short 15 mm clamping or ejection tasks. This specific SKU includes a built-in magnet for position sensing and a U flat-end back cover for rigid mounting.
Unlike ISO 6432 stainless steel bodies, this unit uses a riveted rolling-packed aluminum barrel that is permanently crimped at the factory for extreme lightness, meaning it is not designed to be disassembled. The carbon-steel piston rod features a 20 um hard-chrome plating to resist wear, paired with a heterogeneous two-way piston seal that retains grease for a long service life. End-of-stroke energy is absorbed by a fixed rubber bumper, not an adjustable cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15SU |
|---|---|
| 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 MBL40X15SU
| 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 MBL40X15SU Is Used
Injection Mold Ejection
Uses the 628 N push force at 0.5 MPa to eject small plastic parts from injection molds where a 50 mm bore would consume too much mold space.
PCB Edge Clamping
Secures delicate printed circuit boards during routing operations; the 15 mm stroke and DMSG solid-state sensor provide rapid cycle feedback.
Package Flap Folding
Pivots cardboard flaps on compact packaging lines, leveraging the rigid U flat-end back cover to withstand repeated high-speed impacts.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X15SU the Right Cylinder?
If 628 N is too much force, step down to the 32 mm bore which yields 402 N push at 0.5 MPa; if you need more power, the 50 mm bore provides 981 N. Because this is a 15 mm stroke, side-load is minimal, but remember the U flat-end cover provides a rigid fixed rear mount. The built-in -S magnet allows you to fit CMSG reed or DMSG/EMSG solid-state switches for end-of-stroke confirmation.
This cylinder cannot hold a load if air pressure drops; the rod will drift. Use an external pilot-operated check valve if position holding is required. For exact replacement, match the 40 mm bore, 15 mm stroke, G1/4 port, PT thread form, U flat-end back cover, and the magnet. For high-speed moves needing end-deceleration, step up to the MBLC variant which features an adjustable air cushion instead of the fixed rubber bumper.
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 MBL40X15SU FAQ
At 0.5 MPa, it delivers 628 N push and 528 N pull. At 0.7 MPa, push increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa. It operates at speeds between 30 and 800 mm/s.
The base MBL uses a fixed rubber bumper that cannot be adjusted; for adjustable air cushioning, you need the MBLC variant. This specific SKU includes a built-in magnet (-S), so it is fully compatible with AirTAC CMSG, DMSG, and EMSG sensor switches.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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