Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X100U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X100U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 100mm 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
- Stroke100 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 MBLC20X100U
The AirTAC MBLC20X100U is a double-acting aluminum mini cylinder with a 20mm bore and 100mm stroke, delivering 157N push and 132N pull force at 0.5 MPa. A screw-adjustable pneumatic cushion at both stroke ends decelerates the piston smoothly, protecting the end covers on faster cycles where a fixed rubber bumper would wear out. This U back cover provides a rigid flat-end rear mount for straightforward in-line installations.
Built with a riveted rolling-packed aluminum barrel for a compact, lightweight envelope, it fits tight machine spaces without needing a rebuildable tie-rod frame. The 8mm carbon-steel rod features 20µm hard-chrome plating, paired with a heterogeneous two-way grease-retaining piston seal for low-friction service. Note that this specific SKU lacks a built-in magnet, so it cannot host a CMSG, DMSG, or EMSG position sensor.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X100U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X100U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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 MBLC20X100U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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 MBLC20X100U Is Used
PCB Depaneling Router
Drives a light cutting head across 100mm to singulate populated circuit boards, using the adjustable cushion to brake the 157N thrust smoothly at stroke end without jarring fragile SMD components.
Semiconductor Wafer Cassette Ejector
Pushes wafer cassettes out of a load port using 132N pull retraction force, relying on the tunable air cushion to prevent end-cover impact in cleanroom environments.
Pharma Vial Feed Separator
Actuates a 100mm gating finger to single-file glass vials on a conveyor, with the compact riveted barrel fitting within the narrow 20mm frame clearance of the starwheel.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X100U the Right Cylinder?
For sizing, step down to the smaller AirTAC bore if you need less force, or step up to the 25mm bore (245N push at 0.5 MPa) if your load exceeds the 20mm capacity. Choose this MBLC cushioned version over the base MBL when your 100mm move runs at higher speeds or cycle frequencies that would punish a fixed rubber bumper. The cushion needle is screw-tunable to match your load and velocity, but it only decelerates near the ends—it is not a brake. The plain MBLC does not hold position if air is lost or the valve centers; the rod will drift, so add an external rod lock or pilot-operated check valve if mid-stroke holding is required. Replacement match: 20mm bore, 100mm 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC20X100U FAQ
At 0.5 MPa, this 20mm bore cylinder provides 157N of push force and 132N of pull force. At 0.7 MPa, it delivers 220N push. The theoretical maximum force is 32 kgf at 1.0 MPa operating pressure.
The screw-adjustable pneumatic cushion at both ends lets you dial in the exact deceleration rate for your specific load and speed. Unlike a fixed rubber bumper that degrades over time on high-frequency cycles, tuning the cushion needle minimizes end-cover impact, noise, and vibration. It only decelerates the piston near the stroke ends and does not function as a load lock or brake.
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