Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X400SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X400SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm 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.
- BoreØ50 mm
- Stroke400 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X400SU
The AirTAC MBLC50X400SU is a double-acting aluminum mini cylinder engineered for compact spaces requiring a 400 mm stroke. It generates 981 N of push force and 881 N of pull force at 0.5 MPa, making it suitable for moving heavier masses. The defining feature over the base MBL is the screw-adjustable pneumatic cushion at both ends. By tuning the needle, you decelerate the piston smoothly near stroke extremes, reducing end-cover impact and vibration on fast cycles.
This SKU includes a U flat-end back cover for rigid mounting and a built-in magnet (-S) for position detection. The riveted rolling-packed aluminum barrel keeps the body light, while the Ø16 carbon-steel rod features 20 µm hard-chrome plating to resist wear. The internal heterogeneous two-way grease-retaining piston seal maintains lubrication over long strokes. It accepts AirTAC CMSG reed and DMSG or EMSG electronic sensor switches to track rod extension.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X400SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X400SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 MBLC50X400SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 50 | 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 MBLC50X400SU Is Used
Pallet Transfer Diverters
Drives 400 mm diverting arms on packaging lines, using the 981 N thrust to push loaded pallets while the adjustable cushion prevents harsh stops at full extension.
CNC Lathe Bar Feeders
Pushes raw material stock into collets with precise 400 mm travel, relying on the -S magnet to confirm material seating before the spindle starts.
Vertical Lift Gates
Actuates heavy 400 mm lift gates on sorting machinery, using the tunable air cushion to safely lower the mass without slamming the end cover.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X400SU the Right Cylinder?
Select this 50 mm bore when an application demands 981 N of thrust at 0.5 MPa across a 400 mm travel. If you need less force, stepping down to the 40 mm bore provides 628 N. If you require more power, stepping up to the 63 mm bore yields 1558 N. Choose this MBLC cushioned variant over the standard MBL when cycling heavier loads at high speeds where a fixed rubber bumper would wear out quickly. For exact replacements, match the 50 mm bore, 400 mm stroke, G1/4 port, PT thread, U flat-end cover, and the -S magnet.
Because the 400 mm stroke combined with an 8-16 mm rod offers low side-load tolerance, long-stroke applications are prone to rod bending. To manage this, use an external guide rail, select a CA or SDB pivot bracket to accommodate arcing loads, or switch to an MBLD double-rod cylinder. Note that the adjustable air cushion only decelerates the piston near the ends; it does not lock the rod. If position holding is required when air is lost or the valve centers, install an external rod lock or pilot-operated check valve.
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 MBLC50X400SU FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, the push force increases to 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa.
The cushion is a screw-tunable pneumatic needle at both ends that traps exhaust air to decelerate the piston before it hits the end cover. You tune it to match the load and speed, which cuts impact noise and vibration on fast, heavy moves. It is strictly a deceleration device, not a load lock or brake.
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