Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 125mm 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
- Stroke125 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 MBLC50X125SU
The AirTAC MBLC50X125SU is a double-acting aluminum mini cylinder featuring a 50 mm bore and 125 mm stroke. It generates 981 N of push force and 881 N of pull force at 0.5 MPa, making it well-suited for moving heavier mid-sized payloads. The integrated -S magnet allows CMSG, DMSG, or EMSG electronic sensor switches to track rod position accurately throughout the stroke.
This model uses a screw-adjustable pneumatic air cushion at both ends to decelerate the piston smoothly near stroke limits, cutting impact noise and end-cover wear on fast cycles. The riveted rolling-packed aluminum barrel keeps the body compact and light for tight machinery, while the 20 um hard-chrome carbon-steel rod pairs with a heterogeneous two-way grease-retaining piston seal for lasting friction control. The U flat-end back cover provides a rigid rear mounting interface.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 MBLC50X125SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 MBLC50X125SU Is Used
Carton Erector Pusher
Drives the flap-folding arm on a continuous-motion carton erector, using the 125 mm stroke and 981 N force to cleanly fold heavy corrugated board without bouncing the frame.
CNC Lathe Bar Feeder
Acts as the rear pusher in an automatic bar feeder, advancing 50 mm steel stock into the spindle where the adjustable cushion prevents slamming the collet at the end of the 125 mm move.
Pallet Diverter Gate
Pivots a heavy steel diverter gate on a high-speed packaging conveyor, relying on the tunable air cushion to absorb the gate inertia and protect the U flat-end cover during rapid routing.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SU the Right Cylinder?
At 0.5 MPa, this 50 mm bore provides 981 N push and 881 N pull force. If your payload is lighter, stepping down to the 40 mm bore yields 628 N push and 528 N pull, saving space and air consumption. If you need to move heavier masses, the 63 mm bore offers 1558 N push and 1457 N pull. Choose this MBLC cushioned version over the fixed-bumper base MBL when cycling rapidly or driving high-inertia loads that need tunable end-of-stroke deceleration. Note that the pneumatic cushion only reduces impact speed; it is not a brake. If the air supply drops or the valve centers, the rod will drift, so fit an external rod lock or pilot-operated check valve for strict position holding. Replacement parts must match the 50 mm bore, 125 mm stroke, G1/4 port, PT thread, U back cover, and -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 MBLC50X125SU FAQ
At 0.5 MPa, it delivers 981 N push and 881 N pull force. At 0.7 MPa, it provides 1374 N push. The maximum theoretical force is 200 kgf at 1.0 MPa.
A screw needle at each end lets you tune the pneumatic cushioning to match your load and speed. It traps exhaust air to decelerate the piston smoothly before the end cover, reducing impact on fast or heavy moves. It does not lock the rod; it only softens the stop.
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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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