Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 450mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ20 mm
- Stroke450 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450SU
The AirTAC MBLC20X450SU is a double-acting aluminum mini cylinder engineered for compact spaces, delivering 157 N push and 132 N pull at 0.5 MPa. Because it is an MBLC variant, it replaces the standard fixed rubber bumper with a screw-adjustable air cushion at both stroke ends. This lets you dial in the deceleration profile to match your load and speed, absorbing kinetic energy smoothly rather than slamming into the end cover. At 450 mm, this stroke is ideal for pushing small trays or actuating lightweight gates over a long, precise travel distance.
This SKU includes a built-in magnet (the -S code) for pairing with AirTAC CMSG, DMSG, or EMSG sensor switches to track rod position. The U code denotes a rigid flat-end back cover for straightforward rear mounting. The riveted rolling-packed aluminum barrel keeps the body light and compact, while the 20 µm hard-chrome plating on the carbon-steel rod protects against wear and scoring.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 MBLC20X450SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×450 | 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 MBLC20X450SU Is Used
PCB Shuttle Conveyor
Moves populated PCB trays across a 450 mm gap in pick-and-place machinery, using the adjustable cushion to stop the lightweight carrier smoothly without dislodging surface-mounted components.
Wafer Cassette Ejector
Pushes a semiconductor wafer cassette out of a loading dock, relying on the 157 N push force and the -S magnet to confirm full extension for the robotic arm.
Carton Flap Deflector
Actuates a thin sheet-metal guide in a packaging line to fold cardboard flaps, fitting into the tight machine frame thanks to the compact 20 mm riveted barrel.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450SU the Right Cylinder?
With a 20 mm bore, this cylinder provides 157 N of push force at 0.5 MPa. If your load is lighter, you could drop to a 20 mm bore unit, but if you need more force, stepping up to the 25 mm bore yields 245 N push at 0.5 MPa. Choose this MBLC cushioned version over the base MBL when your 450 mm stroke operates at high speeds or high cycle frequencies, as the fixed bumper would degrade quickly under heavy impacts. Note that the air cushion only decelerates the piston near the ends; it is not a brake and will not hold the load if air pressure is lost.
For replacement matching, verify the 20 mm bore, 450 mm stroke, G1/8 port, PT thread, U flat-end back cover, and the -S magnet. Because this 450 mm stroke is long relative to the small 8 mm rod, side-load tolerance is low. To prevent rod bending and premature seal wear, use an external guide rail, a CA or SDB pivot mounting, or consider the MBLD double-rod cylinder to handle lateral forces.
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 MBLC20X450SU FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push increases to 220 N. The theoretical maximum output is 32 kgf at 1.0 MPa operating pressure.
The cushion is a screw-tunable needle valve at both ends that traps a small pocket of exhaust air. By turning the needle, you restrict the air escape, decelerating the piston smoothly before it hits the end cover. This is critical for a 450 mm stroke running at high speeds, as it prevents impact damage that a fixed rubber bumper cannot absorb.
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