The AirTAC AirTAC MBL63X250U 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 MBL63X250U is a double-acting aluminum mini round cylinder engineered for tight machine spaces. It generates 1558 N of push force and 1457 N of pull force at 0.5 MPa, making it the highest thrust class in the MBL range. The 250 mm stroke provides substantial travel extension for a compact body. This specific SKU features a U flat-end back cover, providing a rigid, fixed rear mounting face that prevents unwanted movement during heavy pushes.
Because this model lacks the -S suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor switch. Instead of an adjustable air cushion, the base MBL relies on a fixed rubber bumper to soften end-of-stroke impacts. The riveted rolling-packed aluminum barrel is permanently crimped to the covers, keeping the footprint small and lightweight but not designed for field disassembly like a tie-rod cylinder. Inside, a heterogeneous two-way piston seal retains grease for long service life, while the Ø16 mm carbon-steel piston rod features 20 µm hard-chrome plating for wear and corrosion resistance.
| Model | AirTAC MBL63X250U 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).
Delivers 1558 N of push force at 0.5 MPa to firmly secure PCB panels against a router table fixture during high-speed spindle routing, utilizing the 250 mm stroke to accommodate varying panel widths.
Extends 250 mm to push heavy pallets onto a secondary packaging conveyor line, where the rigid U flat-end back cover withstands the high rear impact loads of the divert stroke.
Drives a mechanical folding blade on a case packing machine, using the 250 mm travel to clear large carton profiles while the fixed rubber bumper absorbs the rapid return impact.
With a 0.5 MPa push force of 1558 N, this is the largest bore in the MBL family. If you need less force, step down to the 50 mm bore, which provides 981 N of push at 0.5 MPa. If you require higher kinetic energy absorption at the end of this 250 mm stroke, consider the MBLC variant, which adds an adjustable air cushion instead of the standard fixed rubber bumper. If your application only needs a push motion, the MSBL single-acting cylinder covers up to a 40 mm bore.
A plain MBL does not hold its load when air pressure is lost or the valve is centered; the rod will drift or drop. The rubber bumper only softens the end-of-stroke impact and is not a mechanical lock, so use an external rod lock or pilot-operated check valve if gravity loads must be held. For this 250 mm stroke, the small Ø16 mm rod has limited side-load tolerance; use an external guide rail or pair it with an MBLD double-rod cylinder to prevent rod-bearing bending under offset loads. Replacement match: 63 mm bore, 250 mm stroke, G1/4 port, PT thread, U flat-end back cover, no magnet.
Quick checklist
The MBL63X250U generates 1558 N push and 1457 N pull at 0.5 MPa. At 0.7 MPa, the push force is 2181 N. The maximum theoretical force is 318 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, the base MBL uses a fixed rubber bumper to soften end-of-stroke impacts and does not have an adjustable cushion screw. If you need adjustable air cushioning for heavier loads or faster speeds, select the MBLC variant.
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