Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X400U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X400U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 400mm 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
- Stroke400 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 MBLC40X400U
The AirTAC MBLC40X400U is a double-acting aluminum mini cylinder with a 40mm bore and 400mm stroke, delivering 628N of push force at 0.5MPa. The U suffix denotes a rigid flat-end back cover for straightforward inline mounting. A 400mm travel demands precise end-of-stroke control, making the screw-tunable pneumatic cushion at both ends essential for absorbing kinetic energy rather than relying on a fixed rubber bumper.
This model uses a G1/4 port and a 16mm hard-chrome carbon-steel rod. Because this SKU lacks the S designation, it has no built-in magnet and cannot support CMSG, DMSG, or EMSG position sensing. The riveted rolling-packed aluminum barrel keeps the frame compact for tight machine layouts while the heterogeneous two-way grease-retaining piston seal ensures consistent friction performance across its 30-800mm/s speed range.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X400U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X400U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 MBLC40X400U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 MBLC40X400U Is Used
Carton Erector Transfer
Drives a 400mm carriage arm in packaging machinery to fold cardboard blanks, utilizing the 628N push force and adjustable cushion to halt the long travel without slamming the frame.
CNC Lathe Bar Feeder
Indexes raw material stock into a spindle over a 400mm distance, relying on the tunable end-cushioning to prevent shock loads from damaging the precision collet headstock.
Vertical Pallet Lift
Raises stacked electronic component trays in a cleanroom environment, using the double-acting 528N pull force to lower the 400mm stroke smoothly without impact vibrations.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X400U the Right Cylinder?
At 0.5MPa, this 40mm bore generates 628N push and 528N pull force. If your payload is lighter, stepping down to the 32mm bore yields 402N push, whereas heavier loads require stepping up to the 50mm bore for 981N push. The 400mm stroke is a standard length, but at this travel distance, the 16mm rod is vulnerable to bending under lateral stress; you must use an external guide rail, a CA or SDB pivot bracket to accommodate arcing loads, or switch to an MBLD double-rod cylinder to prevent premature seal wear.
Choose this MBLC variant over the base MBL when moving substantial mass at high velocities, as the adjustable needle decelerates the piston smoothly near the ends to prevent end-cover fracture. Remember that the cushion only slows motion near the endpoints; it is not a mechanical lock. If you need to hold position during a loss of air supply, install an external pilot-operated check valve. Replacement match: 40mm bore, 400mm stroke, G1/4 port, PT thread, U flat-end back cover, no 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 MBLC40X400U FAQ
This 40mm bore cylinder provides 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and reaches a theoretical maximum of 128kgf at 1.0MPa. The 400mm stroke falls within the standard range, which extends up to 500mm.
This specific SKU lacks the S designation, meaning it has no internal magnet and cannot accept CMSG, DMSG, or EMSG sensor switches. The screw-adjustable air cushion at both ends traps exhaust air to decelerate the piston smoothly near the stroke limits, which is critical for protecting the end covers on a 400mm move, but it does not lock the rod.
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