Airtac MBL Aluminum Alloy Mini Cylinder MBL20X450U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL20X450U 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 MBL Aluminum Alloy Mini Cylinder MBL20X450U
The AirTAC MBL20X450U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa, making it suited for light-duty positioning across its 450 mm stroke. The U suffix denotes a rigid flat-end rear cover for fixed mounting.
Unlike tie-rod bodies, this cylinder uses a riveted rolling-packed aluminum barrel where the covers are crimped to the tube, keeping weight low but preventing field disassembly. The Ø8 mm carbon-steel piston rod features 20 µm hard-chrome plating for wear resistance, and a heterogeneous two-way piston seal retains grease for a long service life. Because this specific SKU lacks the -S magnet suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X450U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X450U |
|---|---|
| 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 MBL Aluminum Alloy Mini Cylinder MBL20X450U
| 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 MBL Aluminum Alloy Mini Cylinder MBL20X450U Is Used
PCB Conveyor Diversion
Pushes routing gates on a 450 mm travel to divert printed circuit boards between testing stations using 157 N of push force at 0.5 MPa.
Carton Push-Off Arm
Extends a lightweight paddle to eject small packaged goods from a packaging line, relying on the rigid U flat-end cover for stable foot mounting.
Film Roll Tension Arm
Shifts an idler roller into position on flexible film converting machinery where a long 450 mm extension is required in a narrow footprint.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X450U the Right Cylinder?
If you need less reach, the neighbouring MBL20X400 offers the same 157 N push force at 0.5 MPa in a shorter body. Stepping up to the MBL25X450 increases push force to 245 N while keeping the 450 mm stroke. At 450 mm, the small Ø8 mm rod has low side-load tolerance; use an external guide or pivot bracket to prevent rod-bearing bending under lateral stress.
The base MBL uses a fixed rubber bumper to soften end-of-stroke impact, not an adjustable air cushion (choose the MBLC variant for adjustable cushioning). Note that this cylinder does not hold its load if air pressure drops; add an external rod lock or pilot-operated check valve for fail-safe positioning. Replacement match: 20 mm bore, 450 mm stroke, G1/8 port, PT thread, U flat-end back cover, no magnet.
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 MBL Aluminum Alloy Mini Cylinder MBL20X450U FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N push and 132 N pull force. At 0.7 MPa, push increases to 220 N, with a theoretical maximum of 32 kgf at 1.0 MPa. The operational speed ranges from 30-800 mm/s.
No. The base MBL20X450U uses a fixed rubber bumper, not an adjustable air cushion (for that, use the MBLC variant). Additionally, because this SKU lacks the -S suffix, it has no built-in magnet and cannot accept CMSG, DMSG, or EMSG electronic or reed position sensors.
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