Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X250U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X250U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 250mm 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
- Stroke250 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 MBLC50X250U
The AirTAC MBLC50X250U is a double-acting aluminum mini cylinder featuring a 50mm bore and a 250mm 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 jigs or workpieces over a long travel distance. A defining trait of this SKU is the U flat-end back cover, providing a rigid, fixed rear mounting plane that resists pivot play in firmly anchored installations.
Unlike the base MBL series, this MBLC variant utilizes a screw-adjustable pneumatic air cushion at both stroke ends. Tuning the cushion needle lets you smoothly decelerate the piston near the end limits, effectively cutting end-cover impact, vibration, and noise during fast or high-frequency cycling. The body relies on a riveted rolling-packed aluminum barrel for a compact footprint, while the 20 µm hard-chrome plated carbon-steel rod works with a heterogeneous two-way grease-retaining piston seal to maintain steady lubrication. Note that this specific SKU lacks a built-in magnet, so it cannot host CMSG, DMSG, or EMSG position sensors.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X250U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X250U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 MBLC50X250U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 50 | Bore size in mm. |
| ×250 | 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 MBLC50X250U Is Used
Pallet Diverting Gate
Actuates a heavy routing flap on a packaging line, using the 981 N push force to deflect loaded pallets while the air cushion prevents end-of-stroke slamming during rapid cycling.
CNC Lathe Bar Feeder
Pushes raw bar stock through a spindle over the 250mm stroke, where the rigid U flat-end back cover keeps the mounting from shifting under the 881 N retraction pull.
Vertical Lift Table
Raises a stacked parts tray in a tight electronics assembly cell, relying on the tunable cushion to gently settle the 50mm bore load at the top without bouncing.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X250U the Right Cylinder?
At 0.5 MPa, this 50mm bore yields 981 N push and 881 N pull. If your payload is lighter, stepping down to the 40mm bore provides 628 N of push force while saving valuable space. For heavier loads requiring more thrust, the 63mm bore jumps to 1558 N of push force. Choose this MBLC model over the fixed-bumper MBL when your cycle times are fast or the moved mass is high enough that a standard rubber bumper would prematurely wear or cause impact shock.
This 250mm stroke exceeds 300mm? No, but at 250mm it is still a long travel for a mini cylinder. The 16mm rod has limited side-load tolerance, so guiding the load externally or using a pivot bracket is recommended if lateral forces are present. Remember that the adjustable air cushion only decelerates the piston near the ends; it is not a mechanical lock, and the rod will drift if air pressure is lost or exhausted. The replacement match is: 50mm bore, 250mm stroke, G1/4 port, PT thread, U flat-end back cover, no magnet, double-acting.
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 MBLC50X250U FAQ
At 0.5 MPa, this 50mm bore cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, push increases to 1374 N, with a maximum theoretical output of 200 kgf at 1.0 MPa. It uses a G1/4 port, a 16mm rod, and an M14x1.5 rod-end thread.
The MBLC50X250U features a screw-adjustable air cushion at both ends, allowing you to tune the deceleration of the 250mm stroke to protect the end covers on fast moves, unlike a fixed rubber bumper. The cushion only slows the piston near the ends; it is not a brake, so the rod will drift if air is lost. Additionally, this SKU lacks a built-in magnet and cannot be fitted with CMSG, DMSG, or EMSG sensors.
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