The AirTAC AirTAC MBL63X350U Mini Cylinder | 63mm Bore 350mm is a genuine double-acting aluminum-barrel mini round cylinder with a Ø63mm bore and 350mm 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 MBL63X350U is a double-acting aluminum mini round cylinder engineered to deliver substantial thrust in spatially constrained machinery. Operating at 0.5 MPa, it generates 1558 N of push force and 1457 N of pull force across its 350 mm stroke. The U suffix designates a flat-end back cover, providing a rigid, fixed rear mounting face ideal for straight-line thrust applications without inducing angular swing.
This model features a riveted rolling-packed barrel where the covers are crimped to the tube, yielding a lightweight footprint that was never designed for field disassembly like a tie-rod cylinder. Internal longevity is ensured by a heterogeneous two-way piston seal that actively retains grease, while the Ø16 mm carbon steel rod is protected by 20 µm hard-chrome plating to resist wear and corrosion. Note that this specific SKU lacks the -S magnet suffix, meaning it cannot accept a CMSG, DMSG, or EMSG sensor switch for rod position detection.
| Model | AirTAC MBL63X350U Mini Cylinder | 63mm Bore 350mm |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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. |
| ×350 | 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).
Pushes heavy 40 kg pallets onto a secondary packaging line using 1558 N of thrust, fitting neatly within the 60 mm side-frame gap of the conveyor structure.
Acts as a rigid 350 mm stroke pusher to index raw steel bar stock into the collet, leveraging the fixed U flat-end rear mount to absorb straight-line recoil.
Lifts corrugated cartons to a 350 mm elevation platform in a compact palletizer, relying on the retained-grease piston seal to survive continuous dusty warehouse cycles.
As the largest bore in the MBL series, the 63 mm size sits at the top of the range with no internal step-up option; if higher force is required, you must step up to an ISO 15552 profile cylinder like the AirTAC SAI series. Stepping down to the 50 mm bore reduces the push force to 981 N at 0.5 MPa, which is suitable if your payload allows for a lighter actuator. Because this is a 350 mm stroke, the unsupported Ø16 mm rod is highly susceptible to bending under side loads—always incorporate an external guide rail, select a CA pivot back cover for arcing loads, or switch to the MBLD double-rod anti-rotation type to prevent premature seal failure.
The base MBL relies on a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable cushion screw. If your application involves moving large masses at high velocities and requires precise end-of-stroke deceleration, step up to the MBLC variant which features adjustable air cushioning. Furthermore, a standard MBL cannot hold a load in place if air pressure is lost or the valve is centered; the rod will drift. For safety-critical vertical loads, integrate an external pilot-operated check valve or a dedicated rod lock. Replacement specifications: 63 mm bore, 350 mm stroke, G1/4 port, PT thread, U flat-end back cover, no magnet.
Quick checklist
At 0.5 MPa this 63 mm bore cylinder outputs 1558 N push and 1457 N pull force. At 0.7 MPa the push force increases to 2181 N, with a theoretical maximum of 318 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
No, the base MBL uses a fixed rubber bumper that cannot be adjusted; for adjustable air cushioning, you need the MBLC variant. Additionally, because this SKU lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG position sensors.
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