
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X400SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø63mm 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.
The AirTAC MBLC63X400SU is a double-acting aluminum mini cylinder engineered for heavy-duty compact automation. It delivers a robust 1558 N push force at 0.5 MPa, utilizing a Ø16 mm hard-chrome carbon-steel rod with an M14x1.5 end thread. The 400 mm stroke provides substantial travel for packaging or transfer tasks while maintaining a riveted rolling-packed aluminum barrel that saves valuable machine space. The U suffix denotes a rigid flat-end rear cover for straightforward fixed mounting.
This model features a screw-adjustable pneumatic air cushion at both stroke ends, allowing you to tune end-of-stroke deceleration for heavy 318 kgf loads moving at high speeds. Unlike a fixed rubber bumper, this cushioning system decelerates the piston smoothly to protect the end covers, though it does not function as a load lock or brake. The built-in magnet (-S) supports AirTAC CMSG, DMSG, and EMSG sensor switches for precise position detection, while the heterogeneous two-way grease-retaining piston seal ensures long-term operational stability.
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X400SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø63 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | 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).
Deploys the 400 mm stroke to fold and seal large shipping cartons, using the 1558 N push force to overcome cardboard resistance while the adjustable air cushion prevents harsh end-of-stroke impacts during continuous cycling.
Pushes heavy plastic parts out of molds on a 63 mm bore, relying on the DMSG electronic sensor for exact ejection confirmation and the tunable cushion to protect the tooling from high-speed kinetic energy.
Drives separating sheets between heavy product layers on a packaging line, where the rigid U flat-end mount handles axial loads and the 318 kgf maximum capacity handles dense palletized goods.
Select this 63 mm bore when your application requires significant thrust, generating 1558 N push and 1457 N pull at 0.5 MPa. If you need less force, stepping down to the 50 mm bore yields 981 N push, while stepping up is not possible as 63 mm is the largest standard MBL/MBLC size. Choose the MBLC over the base MBL when your mechanism cycles quickly or moves a heavy mass that would overwhelm a standard rubber bumper. The U flat-end cover provides rigid mounting; choose CA if your linkage requires a pivoting clevis. For position feedback, the -S magnet works with CMSG reed or DMSG/EMSG electronic switches.
At 400 mm of travel, the Ø16 mm rod is highly susceptible to side-loading and bending. To prevent premature seal failure, use an external guide rail, select a CA or SDB pivot mount to absorb angular misalignment, or switch to an MBLCD double-rod cylinder. Remember that a plain double-acting cylinder does not hold position if air pressure drops; add an external rod lock for fail-safe holding. Replacement parts must match the G1/4 port, PT thread, U cover, and S magnet.
Quick checklist
This 63 mm bore cylinder uses a Ø16 mm rod with an M14x1.5 end thread and a G1/4 port. At 0.5 MPa it provides 1558 N push and 1457 N pull. At 0.7 MPa it provides 2181 N push and 2040 N pull. The maximum theoretical force is 318 kgf at 1.0 MPa.
The cushion is a screw-tunable needle valve at both ends that traps exhaust air to decelerate the piston smoothly before it hits the end cover. You adjust it to match your specific load and speed, which reduces noise and impact wear. It only decelerates near the stroke ends and is not a brake or load lock.
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