Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450U 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 MBLC20X450U
The AirTAC MBLC20X450U is a compact double-acting aluminum mini cylinder engineered for a 450 mm stroke. It integrates a screw-adjustable pneumatic cushion at both ends, allowing you to precisely tune end-of-stroke deceleration. This protects the end covers from impact when moving loads at speed, a clear upgrade over the fixed rubber bumper found on the base MBL series. Delivering 157 N of push force at 0.5 MPa, it utilizes a G1/8 port and an Ø8 mm carbon-steel rod with 20 µm hard-chrome plating.
Because this SKU lacks the -S magnet option, it cannot host a CMSG, DMSG, or EMSG position sensor. The riveted rolling-packed aluminum barrel keeps the body light for tight spaces, while the heterogeneous two-way grease-retaining piston seal ensures consistent friction. The U flat-end back cover provides rigid rear mounting for straightforward installation.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450U |
|---|---|
| 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 MBLC20X450U
| 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 MBLC20X450U Is Used
PCB Depaneling Router
Smoothly routes a cutting head across a 450 mm span, relying on the adjustable air cushion to brake the rapid 157 N traverse without jarring the delicate board edges.
Wafer Cassette Pusher
Advances a semiconductor wafer cassette down a long line; the tunable cushion prevents shock vibration at stroke completion while the compact body fits the cleanroom tooling.
Thin Carton Sorting Diverter
Swings a lightweight deflector flap for 450 mm to sort small packaging, using the double-acting 20 mm bore to extend and retract quickly without end-cover impact.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X450U the Right Cylinder?
Choosing this 20 mm bore makes sense when your application requires a long 450 mm travel but only moderate force (157 N push at 0.5 MPa). If you need less reach, stepping down to the 20 mm bore with a shorter stroke reduces unnecessary rod mass. If your payload exceeds this capacity, stepping up to the 25 mm bore yields 245 N of push force at 0.5 MPa. Remember that MBLC is preferred over the standard MBL when cycle speeds are high enough that a fixed bumper would wear prematurely.
At 450 mm, the thin Ø8 mm piston rod has low side-load tolerance and is susceptible to bending under off-axis loads. To manage this, use an external guide rail, select a CA or SDB pivot bracket to accommodate arcing movements, or switch to an MBLD double-rod cylinder. This specific configuration uses a PT port thread, a U flat-end back cover, and no magnet. It does not hold position without live air; the adjustable cushion only decelerates the piston near the stroke ends rather than locking it in place.
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 MBLC20X450U FAQ
This 20 mm bore cylinder provides a push force of 157 N and a pull force of 132 N at 0.5 MPa. At 0.7 MPa, the push increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
A screw-tunable needle valve traps a pocket of exhaust air at the end of both the extend and retract strokes. You adjust this bleed to decelerate the piston smoothly, which reduces noise and impact stress on faster cycles. It is strictly a deceleration device, not a mechanical lock.
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