
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300SU 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 MBLC63X300SU is a double-acting, single-rod mini cylinder engineered for demanding motion control. It generates 1558 N of push force and 1457 N of pull force at 0.5 MPa, scaling up to 2181 N push at 0.7 MPa. The 300 mm stroke is ideal for longer travel distances in compact machinery. Equipped with a built-in magnet (-S), it supports AirTAC CMSG, DMSG, and EMSG sensor switches for precise end-of-stroke position detection.
Unlike the base MBL series which relies on a fixed rubber bumper, this MBLC model features a screw-adjustable pneumatic air cushion at both ends. This allows you to tune the end-of-stroke deceleration to match heavy loads, preventing end-cover impact and reducing vibration. The cylinder uses a riveted rolling-packed aluminum barrel for a lightweight, space-saving profile, while the Ø16 mm carbon-steel rod features 20 µm hard-chrome plating to resist wear and corrosion.
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300SU |
|---|---|
| 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).
Provides 1558 N of thrust at 0.5 MPa to halt heavy pallets on packaging lines, using the adjustable cushion to absorb the momentum of 300 mm travel smoothly.
Drives 300 mm ejector pins on large plastic molds, relying on the built-in magnet and DMSG electronic sensor to confirm full rod extension before the mold closes.
Transfers heavy totes in high-frequency logistics sorters, where the tunable air cushion prevents mechanical shock to the cylinder end covers during rapid cycling.
At 63 mm bore, this cylinder provides maximum thrust for the MBLC mini series. If you need less force, step down to the 50 mm bore, which yields 981 N push at 0.5 MPa. As the largest available size, there is no step up within this family. Choose this MBLC cushioned version over the fixed-bumper MBL when moving heavy masses at high cycling frequencies, as the tunable needle decelerates the piston smoothly near the ends. Note that the air cushion only decelerates; it is not a lock, so the rod will drift if air is lost.
For replacement, match the 63 mm bore, 300 mm stroke, G1/4 port, PT thread, U flat-end back cover, and -S magnet. Because the 300 mm stroke is relatively long for a mini cylinder, side-load tolerance is low on the 16 mm rod. To prevent rod bending, use an external guide, a CA or SDB pivot mounting, or consider the MBLD double-rod type to handle arcing loads.
Quick checklist
At 0.5 MPa, it provides 1558 N push and 1457 N pull. At 0.7 MPa, it provides 2181 N push and 2040 N pull. The maximum theoretical force is 318 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
A screw-tunable needle at both ends restricts exhaust air to decelerate the piston near the stroke ends. You adjust it to match the load and speed, cutting impact and noise on fast 300 mm moves. It only decelerates and is not a load lock or brake.
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