The AirTAC AirTAC MBL63X25SU Mini Cylinder | 63mm Bore 25mm Stroke is a genuine double-acting aluminum-barrel mini round cylinder with a Ø63mm bore and 25mm 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 MBL63X25SU is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces where high force is required. Operating at 0.5 MPa, it delivers 1558 N of push force and 1457 N of pull force, making it well-suited for short 25 mm clamping or ejection strokes. The U flat-end back cover provides a rigid, fixed rear mounting surface for straightforward installation.
This SKU includes a built-in magnet (-S) for non-contact position sensing using AirTAC CMSG reed or DMSG and EMSG solid-state switches. Unlike tie-rod cylinders, the MBL features a riveted rolling-packed aluminum barrel that crimps the covers to the tube, ensuring a lightweight yet durable body. Internally, a heterogeneous two-way piston seal retains grease for long service life, while the Ø16 mm carbon steel rod features 20 µm hard-chrome plating to resist wear and corrosion.
| Model | AirTAC MBL63X25SU Mini Cylinder | 63mm Bore 25mm Stroke |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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. |
| ×25 | 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 1558 N of push at 0.5 MPa to eject dense plastic parts from injection molds within a 25 mm stroke, fitting into tight mold voids.
Delivers up to 318 kgf of theoretical force at 1.0 MPa for permanently staking metal pins in compact assembly machinery without requiring a large profile cylinder.
Acts as a rigid stop gate on a conveyor line, using the U flat-end cover for fixed rear mounting while the short 25 mm stroke cycles rapidly to halt pallets.
For short-stroke, high-thrust tasks, this 63 mm bore cylinder provides 1558 N of push force at 0.5 MPa. If you need less force to fit an even tighter footprint, step down to the 50 mm bore, which offers 981 N of push at 0.5 MPa. If you require even greater thrust, there is no larger bore in the MBL series, so you would need to transition to an ISO 15552 profile cylinder like the AirTAC SAI line. Because this is a 25 mm stroke, side-load bending on the rod is minimal, but for applications with heavy arcing loads, consider the MBLD double-rod variant to prevent twisting.
The base MBL uses a fixed rubber bumper to soften end-of-stroke impacts and is not an adjustable air cushion; for heavier moving masses or faster cycle speeds, select the MBLC variant with adjustable air cushioning. Note that this cylinder does not hold its load if air pressure is lost or exhausted—the rod will drift. For fail-safe load holding, install an external rod lock or a pilot-operated check valve. This specific SKU features a PT port thread, a U flat-end back cover, and a built-in magnet for sensor tracking.
Quick checklist
This 63 mm bore cylinder provides a push force of 1558 N and a pull force of 1457 N at 0.5 MPa. At 0.7 MPa, the push force increases to 2181 N. The maximum theoretical force is 318 kgf when operating at 1.0 MPa.
No, the base MBL63X25SU uses a fixed rubber bumper to absorb end-of-stroke impacts, not an adjustable air cushion or cushion screw. If your application involves heavy moving masses or requires adjustable end-speed control, you should select the MBLC variant, which features adjustable pneumatic cushioning.
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