
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X40SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 40mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
The AirTAC MBLC50X40SU is a compact double-acting aluminum mini cylinder engineered to deliver a robust 981 N push force at 0.5 MPa. Driven by a Ø16 mm hard-chrome carbon-steel rod with an M14x1.5 end thread, this 40 mm stroke unit is purpose-built for short, high-impact moves. Its riveted rolling-packed aluminum barrel keeps the body light and tight for machine integration, while a heterogeneous two-way grease-retaining piston seal ensures lasting lubrication.
Unlike the standard bumper-equipped MBL, this MBLC variant features a screw-adjustable pneumatic air cushion at both ends. You can tune the needle to smoothly decelerate the piston near the stroke limits, effectively cutting end-cover impact, noise, and vibration on heavier loads. The built-in magnet (-S) enables direct position detection using AirTAC CMSG, DMSG, or EMSG sensor switches, and the U flat-end back cover provides a rigid rear mounting face.
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC50X40SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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.
| 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.
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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).
Provides a fast 981 N push to knock out dense plastic parts from molds, using the adjustable cushion to soften the 40 mm end-of-stroke impact and protect the tooling.
Drives a heavy cardboard lane diverter on a high-speed packaging line, where the tunable air cushion absorbs the abrupt stops of frequent 40 mm strokes.
Actuates a rigid test probe plate downward onto circuit boards, relying on the -S magnet and DMSG electronic sensor to confirm the 40 mm extended position.
Select this 50 mm bore when your application requires substantial thrust within a compact footprint, specifically 981 N push and 881 N pull at 0.5 MPa. If you need less force, step down to the 40 mm bore, which offers 628 N push at 0.5 MPa; if you require more power, the 63 mm bore provides 1558 N push at 0.5 MPa. Choose this MBLC cushioned version over the base MBL when cycling faster or moving heavier masses that would overwhelm a fixed rubber bumper. To replace this unit exactly, match the 50 mm bore, 40 mm stroke, G1/4 port, PT thread, U flat-end back cover, and the -S magnet. Note that a plain MBLC does not hold position when air is lost or the valve centers; the cushion only decelerates near the ends and acts as no brake.
Quick checklist
The MBLC50X40SU uses a G1/4 port and a Ø16 mm rod. At 0.5 MPa it generates 981 N push and 881 N pull; at 0.7 MPa it generates 1374 N push. The maximum theoretical force is 200 kgf at 1.0 MPa.
A screw-tunable needle at both ends traps a pocket of exhaust air to decelerate the piston smoothly before it hits the end cover. You adjust it to match your load and speed, which reduces impact noise and wear. It is strictly an end-of-stroke damper, not a load lock or brake.
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