Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U 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.
- BoreØ63 mm
- Stroke300 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U
The AirTAC MBLC63X300U is a double-acting, 63 mm bore aluminum mini cylinder engineered with a screw-adjustable pneumatic cushion at both stroke ends. Delivering 1558 N of push force and 1457 N of pull force at 0.5 MPa, this 300 mm stroke variant is built for moving heavier masses through compact machinery envelopes. The U code specifies a rigid flat-end back cover for straightforward rigid mounting.
Unlike fixed rubber bumpers, the integrated air cushion lets you dial in end-of-stroke deceleration to match your load and velocity, effectively silencing impact noise and protecting the end covers. The body utilizes 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 paired with a heterogeneous two-way grease-retaining piston seal for prolonged operational life.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U |
|---|---|
| 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.
Theoretical Output Force (Ø63mm)
| 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.
Model Code: Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U
| 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).
Where the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U Is Used
Injection Mold Ejection
Provides the 1558 N of 0.5 MPa push force required to knock out heavy automotive interior panels, while the tuned air cushion prevents harsh ejection impacts at the end of the 300 mm travel.
Pallet Diverting
Shifts loaded pallets across packaging lines where the 300 mm stroke provides full lateral displacement, and the double-acting air operation ensures reliable retraction under heavy inertial load.
Heavy Carton Squaring
Squares bulky corrugated cartons on case erectors by applying up to 318 kgf of theoretical maximum force at 1.0 MPa, with the cushion needle adjusted to gently decelerate the heavy squaring arm.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U the Right Cylinder?
At 0.5 MPa, this 63 mm bore generates 1558 N of thrust, sitting directly above the 50 mm bore option that provides 981 N of push force. If your application requires less force, step down to the 50 mm bore; if you need more power, the 63 mm is the largest standard size in this mini-cylinder family. Choose this MBLC variant over the base MBL when your cycle speeds or payload weights surpass what a fixed rubber bumper can safely absorb.
Because this model spans 300 mm of stroke on a Ø16 mm rod, it is highly susceptible to side-load friction and rod bending. To prevent premature seal wear and tube scoring, you must guide the load externally, utilize a CA or SDB pivot bracket for arcing movements, or switch to an MBLD double-rod cylinder. Note that this specific U-type, non-magnetized SKU lacks a built-in magnetic ring, so it cannot accept CMSG, DMSG, or EMSG position sensors. Additionally, the adjustable cushion only decelerates the piston near the ends—it is not a brake, and the rod will drift if air pressure is lost or the valve centers.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB / FA / SDB) and back cover (CA pivot / U flat-end).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X300U FAQ
At 0.5 MPa, this 63 mm bore cylinder outputs 1558 N of push force and 1457 N of pull force. At 0.7 MPa, the push force increases to 2181 N, with a theoretical maximum of 318 kgf at 1.0 MPa. It uses a G1/4 port, a Ø16 mm carbon-steel rod, and an M14x1.5 rod-end thread.
The cushion is a screw-tunable needle valve at both ends that traps exhaust air to decelerate the piston smoothly before it hits the end cover, which is critical for protecting the cylinder on fast or heavy 300 mm strokes. It is strictly a deceleration device, not a lock; if air is removed or the valve centers, the rod will drift and drop.
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