The AirTAC AirTAC MBL63X300SU Mini Cylinder | 63mm Bore 300mm 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 MBL63X300SU is a double-acting aluminum mini round cylinder engineered for high-force actuation in tight machine envelopes. Delivering 1558 N of push force at 0.5 MPa (up to 2181 N at 0.7 MPa), this 63 mm bore unit provides robust linear motion for heavy small-part handling. The 300 mm stroke makes it suitable for extended reach applications where a standard profile cylinder would be too bulky. The riveted rolling-packed barrel ensures a lightweight, compact footprint, though it is not designed to be disassembled like a tie-rod body.
This specific SKU includes a built-in magnet (-S) for non-contact position sensing using AirTAC CMSG (reed), DMSG, or EMSG (electronic) switches. It features a U flat-end back cover for rigid rear mounting and a carbon-steel piston rod with a 20 µm hard-chrome plating to resist wear and corrosion. The heterogeneous two-way piston seal retains grease internally for a long service life. End-of-stroke deceleration is handled by a fixed rubber bumper, which softens impact but does not lock the rod in place when air pressure is removed.
| Model | AirTAC MBL63X300SU Mini Cylinder | 63mm Bore 300mm |
|---|---|
| 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).
Utilizes the 1558 N push force at 0.5 MPa to eject heavy plastic parts from tight injection molding tooling cavities where space is strictly limited.
Leverages the 300 mm stroke to reach across a narrow conveyor belt and deflect heavy product flow into a secondary packaging lane.
Uses the built-in -S magnet with an EMSG solid-state switch to confirm rod extension before lowering a heavy test probe head onto circuit boards.
At 0.5 MPa, this 63 mm bore generates 1558 N of push and 1457 N of pull force. If you need less force, stepping down to the 50 mm bore yields 981 N of push, while the 40 mm bore offers 628 N. As the largest standard MBL bore, there is no larger step-up within this mini cylinder family; for even higher loads, consider transitioning to an ISO 15552 profile cylinder. Because the MBL63X300SU uses a fixed rubber bumper rather than an adjustable air cushion, applications requiring precise end-of-stroke deceleration should specify the MBLC variant.
With a 300 mm stroke driven by a Ø16 mm rod, the cylinder is highly susceptible to side-load bending and rod-bearing wear. For this length, you should implement an external guide rail, use a pivot mounting accessory, or switch to the MBLD double-rod cylinder to prevent rod deflection. Additionally, this cylinder cannot hold a load if air pressure is lost or exhausted; the rod will drift. Use an external rod lock or a pilot-operated check valve if position holding is required for safety. Replacement parts must match the 63 mm bore, 300 mm stroke, G1/4 port, PT thread form, U flat-end back cover, and the -S magnet configuration.
Quick checklist
At 0.5 MPa, the push force is 1558 N and the pull force is 1457 N. At 0.7 MPa, the push force increases to 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 MBL63X300SU uses a fixed rubber bumper to soften end-of-stroke impacts, not an adjustable cushion screw. If your application involves high-speed or heavy moving masses that require tunable deceleration, you should select the MBLC variant, which features an adjustable air cushion.
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