The AirTAC AirTAC MBL63X300U Mini Cylinder | 63mm Bore 300mm Stroke is a genuine double-acting aluminum-barrel mini round cylinder with a Ø63mm bore and 300mm 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 MBL63X300U is a double-acting aluminum mini round cylinder engineered for substantial thrust in confined machinery spaces. Delivering 1558 N push and 1457 N pull at 0.5 MPa, this 63 mm bore unit is built around a riveted rolling-packed body that crimps the covers directly to the tube. This construction keeps weight low and footprint small, though it is not designed to be disassembled like a tie-rod cylinder. The U flat-end back cover provides a rigid rear mounting face for straight-line pushes.
This 300 mm stroke variant relies on a Ø16 mm carbon steel piston rod with 20 µm hard-chrome plating for wear resistance. It uses a heterogeneous two-way piston seal that retains grease for long service life. As a base MBL model, it uses a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable air cushion. Note that because this SKU lacks the -S suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor.
| Model | AirTAC MBL63X300U Mini Cylinder | 63mm Bore 300mm Stroke |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 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. |
| ×300 | 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).
Drives 300 mm stroke diverting arms on packaging conveyors, utilizing 1558 N of thrust to push heavy loaded pallets into secondary processing lanes.
Provides 1457 N of pull force at 0.5 MPa to retract ejection pins in compact plastic injection molds where a larger tie-rod cylinder would not fit.
Folds heavy cardboard carton flaps on continuous flow wrappers, using the 300 mm stroke to clear tall product profiles before sealing.
This 63 mm bore generates 1558 N of push force at 0.5 MPa. If your assembly needs less force, step down to the 50 mm bore, which provides 981 N push at 0.5 MPa. If you require more thrust, the MBL line stops at 63 mm, so you must step up to an ISO 15552 profile cylinder like the AirTAC SAI series. The U flat-end back cover suits rigid dead-end pushes; choose a CA pivot back cover if your mechanism requires angular alignment.
At 300 mm of travel, the unsupported Ø16 mm rod is highly susceptible to side-load bending. Use an external guide rail to prevent rod-bearing damage, or switch to the MBLD double-rod cylinder for anti-rotation support. Because this is a double-acting cylinder, it will drift and drop its load if air pressure is lost or the valve is centered—the fixed rubber bumper softens impact but does not lock the rod. Use an external pilot-operated check valve if you must hold position.
Quick checklist
At 0.5 MPa it provides 1558 N push and 1457 N pull. At 0.7 MPa the push force is 2181 N. The maximum theoretical force is 318 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No. The base MBL uses a fixed rubber bumper to absorb end-of-stroke impact, not an adjustable air cushion (for that, choose the MBLC variant). Additionally, this specific SKU lacks the -S magnet suffix, so it cannot accept CMSG, DMSG, or EMSG electronic sensor switches.
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