Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SCA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SCA 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 MBLC50X125SCA
The AirTAC MBLC50X125SCA is a compact double-acting aluminum mini cylinder engineered with a screw-adjustable pneumatic cushion at both ends. It delivers 981 N of push force and 881 N of pull force at 0.5 MPa, making the 125 mm stroke well-suited for mid-range positioning tasks. The built-in magnet (-S) supports CMSG, DMSG, and EMSG sensor switches for precise end-of-stroke detection.
This SKU features a CA pivot back cover that swings on a pin to accommodate arcing or angular loads, preventing rod binding. Unlike the base MBL's fixed rubber bumper, the MBLC cushion needle is screw-tunable to smoothly decelerate the piston near each stroke end, protecting the end covers on faster or heavier moves. The riveted rolling-packed aluminum barrel keeps the body compact, while the Ø16 carbon-steel rod with 20 µm hard-chrome plating resists wear.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SCA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SCA |
|---|---|
| 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 MBLC50X125SCA
| 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 MBLC50X125SCA Is Used
Packaging Flap Folding
Drives the folding mechanism on medium-speed cartoners, using the 125 mm stroke and 981 N force to tuck flaps securely before sealing.
Pallet Diverting Arm
Actuates a pivoting diverter arm on a packaging line, where the CA clevis mount absorbs angular side-load while the cushion softens the 50 mm bore impact at cycle end.
Board Stacking Ejector
Pushes corrugated boards out of a stacking station, relying on the tunable air cushion to prevent marring the product edges during high-frequency ejection.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X125SCA the Right Cylinder?
If you need less force, step down to the 40 mm bore (628 N push at 0.5 MPa); if you require more power, step up to the 63 mm bore (1558 N push at 0.5 MPa). Choose this MBLC variant over the standard MBL when your application runs at high cycle speeds or moves a heavier mass that would overwhelm a fixed rubber bumper. The CA pivot mounting is ideal for arcing loads, but if your stroke exceeds 300 mm, consider an external guide or the MBLD double-rod type to prevent rod bending. This configuration uses a G1/4 port, M14x1.5 rod thread, PT thread form, and a CA back cover. Note that the air cushion only decelerates the piston near the ends; it is not a brake and will not hold the load 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 MBLC50X125SCA FAQ
At 0.5 MPa, it provides 981 N of push force and 881 N of pull force. At 0.7 MPa, the push increases to 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
The cushion is a screw-tunable needle valve at both ends that traps exhaust air to decelerate the piston smoothly, reducing impact noise and end-cover wear on fast moves; it is not a load lock. The CA back cover is a pivot clevis that swings on a pin, which is necessary when the driven load travels in an arc, preventing rod side-load damage.
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Covers non-human-caused product damage.
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