Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 40mm 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
- Stroke40 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU
The AirTAC MBLC40X40SU is a double-acting aluminum mini cylinder with a 40mm bore and 40mm stroke. It generates 628 N of push force and 528 N of pull force at 0.5 MPa, making it well-suited for short, high-thrust positioning tasks. Unlike the base fixed-bumper version, this MBLC variant features a screw-adjustable pneumatic cushion at both ends. You tune the needle to decelerate the piston smoothly near the stroke limits, effectively minimizing end-cover impact and vibration on faster moves.
This SKU includes a built-in magnet (-S) for compatibility with AirTAC CMSG, DMSG, and EMSG sensor switches to track rod position. The U designation indicates a rigid flat-end back cover. Constructed with a riveted rolling-packed aluminum barrel for compactness, it uses a heterogeneous two-way grease-retaining piston seal and a Ø16 mm carbon-steel rod plated with 20 µm hard chrome to resist wear.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU Is Used
Injection Mold Ejection
Provides 628 N of push force to eject small plastic parts from molds, using the adjustable cushion to soften the stroke end and protect fragile tooling.
Packaging Line Diverter
Rapidly diverts small cardboard cartons on a packaging conveyor, with the tunable air cushion absorbing the kinetic energy of the 40mm rapid stroke.
PCB Test Socket Actuation
Drives an electrical test socket onto a printed circuit board, using the -S magnet to confirm full extension via a DMSG solid-state sensor.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU the Right Cylinder?
Choosing this 40mm bore makes sense when you need robust thrust in a compact footprint. If your application is lighter, stepping down to the 32mm bore yields 402 N of push force at 0.5 MPa. For heavier demands, the 50mm bore provides 981 N of push force. The adjustable air cushion is specifically beneficial if your short 40mm stroke cycles rapidly or moves a heavier mass, outperforming the standard MBL bumper. Remember that the cushion only decelerates near the ends; it is not a brake, and a plain double-acting cylinder will drift if air is lost. For exact replacements, match the 40mm bore, 40mm stroke, G1/4 port, M12x1.25 rod thread, PT thread form, U flat-end back cover, and the -S 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X40SU FAQ
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At 0.7 MPa, the push force is 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa.
A screw-tunable needle at both ends traps a small pocket of exhaust air to decelerate the piston smoothly before it hits the end cover. You adjust it to match the load and speed, which reduces impact noise and wear compared to a fixed rubber bumper.
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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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