The AirTAC AirTAC MBL63X250SU Mini Cylinder | 63mm Bore 250mm Stroke is a genuine double-acting aluminum-barrel mini round cylinder with a Ø63mm 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.
The AirTAC MBL63X250SU is a compact double-acting aluminum mini round cylinder engineered to deliver substantial thrust in tight machine envelopes. It provides 1558 N of push force and 1457 N of pull force at 0.5 MPa, making this 250 mm stroke variant well-suited for moving heavier jigs or actuators. Despite its high force output, the riveted rolling-packed aluminum barrel keeps the overall footprint small and lightweight, explicitly avoiding the bulk of an ISO 15552 profile cylinder.
This specific SKU includes a built-in magnet (-S) for non-contact position detection using CMSG reed or DMSG and EMSG electronic sensor switches. The U suffix denotes a rigid flat-end rear cover for fixed mounting, while the carbon-steel piston rod features 20 um hard-chrome plating to resist wear and corrosion. A heterogeneous two-way piston seal retains grease internally for long service life, and the base MBL design relies on a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable air cushion.
| Model | AirTAC MBL63X250SU Mini Cylinder | 63mm Bore 250mm Stroke |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø63 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.
| 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. |
| ×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).
Uses the 1558 N push force at 0.5 MPa to deflect heavy loaded pallets off a powered roller conveyor at the end of a packaging line.
Provides 250 mm of extended reach to safely push large molded plastic parts out of an injection molding press cavity.
Drives a folding mechanism on a continuous carton sealing machine, utilizing the CMSG reed sensor to trigger the glue gun sequence.
Selecting this 63 mm bore cylinder makes sense when your application requires the top standard thrust available in the MBL range (1558 N push at 0.5 MPa). If you need slightly less force, stepping down to the 50 mm bore yields 981 N of push force, while the 63 mm remains the largest standard option in this mini series. Because this is a 250 mm stroke, the Ø16 mm piston rod is highly susceptible to bending under side loads; you should use an external guide rail or consider the MBLD double-rod variant to prevent premature seal wear and rod deflection.
The fixed rubber bumper softens impact but does not lock the rod in place if air pressure is lost or the valve is centered. If your machine requires true load holding without live pressure, install an external pilot-operated check valve. For exact replacement, match the 63 mm bore, 250 mm stroke, G1/4 port, PT thread form, U flat-end back cover, and the -S magnet. If your cycle times generate too much kinetic energy at the end of this long stroke, upgrade to the MBLC variant for an adjustable air cushion.
Quick checklist
This 63 mm bore cylinder delivers 1558 N push and 1457 N pull at 0.5 MPa, 2181 N push at 0.7 MPa, and a maximum theoretical force of 318 kgf at 1.0 MPa. It operates at a speed range of 30-800 mm/s.
No, the base MBL uses a fixed rubber bumper to absorb end-of-stroke impact, not an adjustable air cushion (you would need the MBLC variant for that). Additionally, the bumper is not a locking mechanism; the rod will drift if air pressure is removed.
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