Airtac MBL Aluminum Alloy Mini Cylinder MBL40X30SU
The AirTAC MBL Aluminum Alloy Mini Cylinder MBL40X30SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 30mm stroke, 1/8" air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ40 mm
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
- 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 MBL Aluminum Alloy Mini Cylinder MBL40X30SU
The AirTAC MBL40X30SU is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. With a 40mm bore and 30mm stroke, it provides 628N push and 528N pull force at 0.5 MPa, making it suitable for medium-duty clamping and ejection tasks. The U flat-end back cover provides a rigid rear mounting face for secure, stationary attachment. Equipped with a built-in magnet (-S), it supports AirTAC CMSG reed and DMSG/EMSG electronic sensor switches for precise end-of-stroke detection.\n\nUnlike tie-rod cylinders, the MBL body features a riveted rolling-packed aluminum barrel where the covers are crimped directly to the tube, ensuring a lightweight, compact profile that is not designed to be disassembled. Internal longevity is driven by a heterogeneous two-way piston seal that retains grease, paired with a carbon steel piston rod hardened with 20μm chrome plating for superior wear and corrosion resistance. The base MBL relies on a fixed rubber bumper to soften end-of-stroke impact, rather than an adjustable air cushion found on the MBLC variant.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X30SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X30SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| 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 MBL40X30SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 MBL40X30SU Is Used
Injection Mold Ejection
Provides 628N of push force at 0.5 MPa to eject small plastic parts from tight injection mold tooling where a larger profile cylinder cannot fit.
Packaging Diverter Gate
Uses the 30mm rapid stroke and built-in magnet to trigger a CMSG sensor switch for sorting small cartons on a high-speed packaging conveyor.
PCB Test Fixture
Applies 528N pull force to secure electronic test probes against printed circuit boards, utilizing the rigid U flat-end back cover for stable mounting.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X30SU the Right Cylinder?
For lower force requirements, step down to the 32mm bore (402N push @0.5 MPa); for heavier moves, step up to the 50mm bore (981N push @0.5 MPa). Choose the MBLC variant if your application requires adjustable air cushioning for faster cycling or heavier loads, or the MSBL/MTBL single-acting versions if you need spring-return operation. The MBL40X30SU features a 1/8" port, PT tapered thread, U flat-end back cover, and a built-in magnet.\n\nBecause the MBL uses a fixed rubber bumper rather than a locking mechanism, the rod will drift or drop if air pressure is lost or the valve is centered. If your application requires the load to be held without live pressure, install an external rod lock or a pilot-operated check valve. For this 30mm stroke, side-load on the 16mm rod is minimal, but external guides are recommended for any off-axis loads.
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 MBL40X30SU FAQ
At 0.5 MPa, the push force is 628N and the pull force is 528N. At 0.7 MPa, the push force increases to 880N. The maximum theoretical force is 128 kgf at 1.0 MPa.
No, the base MBL40X30SU uses a fixed rubber bumper to soften end-of-stroke impact. It does not have an adjustable cushion screw. If you need adjustable air cushioning for heavier loads, select the MBLC variant.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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