Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X30U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X30U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 MBLC40X30U
The AirTAC MBLC40X30U is a double-acting aluminum mini cylinder engineered for short, rapid 30 mm strokes where precise end-of-travel control is essential. It generates 628 N of push force and 528 N of pull force at 0.5 MPa. Unlike the base MBL series, this variant features a screw-adjustable pneumatic cushion at both ends, allowing you to tune the deceleration profile to match heavier loads and higher cycling speeds, thereby protecting the end covers from impact wear.
This 40 mm bore unit utilizes a G1/4 port and a robust Ø16 mm carbon-steel rod with 20 µm hard-chrome plating to resist corrosion and scoring. The riveted rolling-packed aluminum barrel keeps the body compact and lightweight for tight machinery spaces. Fitted with a U flat-end rear cover, this specific SKU is built without a magnet, meaning it cannot host CMSG, DMSG, or EMSG position sensors for rod detection.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X30U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X30U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 MBLC40X30U
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X30U Is Used
PCB Router Clamping
Secures printed circuit board panels during high-speed routing operations. The 628 N clamping force prevents panel shift, while the tuned air cushion absorbs the rapid 30 mm retraction without shocking the delicate aluminum tooling plate.
Carton Flap Folding
Folds minor carton flaps in continuous packaging lines. The adjustable cushion allows the 40 mm bore to snap the flap quickly but decelerate gently at the end of the 30 mm stroke, preventing mechanical bounce that could misalign the glue application.
Bottle Divert Gate
Actuates a short diverter gate on a beverage conveyor. The U flat-end cover mounts rigidly to the frame, and the pneumatic cushioning ensures the gate extends and retracts smoothly at high cycling rates without hammering the cylinder's internal end stops.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X30U the Right Cylinder?
Select this 40 mm bore when an application demands 628 N of thrust at 0.5 MPa but lacks the physical envelope for a larger 50 mm cylinder (which offers 981 N). Conversely, if your load is lighter, stepping down to a 32 mm bore reduces air consumption while still providing 402 N of push force. The 30 mm stroke is optimal for very short movements. Because this SKU lacks the -S magnet, you cannot track rod position; if your sequence requires end-of-stroke confirmation, choose the MBLC40X30S variant instead. Remember that the adjustable air cushion only decelerates the piston near the stroke ends and will not hold the load in place if air pressure is lost.
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 MBLC40X30U FAQ
This 40 mm bore cylinder features a G1/4 port and a Ø16 mm rod. At 0.5 MPa it provides 628 N push and 528 N pull force. At 0.7 MPa, push increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa.
The MBLC40X30U has a screw-tunable needle valve at both ends that traps a small pocket of exhaust air to decelerate the piston before it hits the end cover. You adjust it to match your specific load and speed, which reduces impact noise and wear. It is strictly an end-of-stroke shock absorber, not a braking or load-holding lock.
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