Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X30SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X30SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 30mm 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
- Stroke30 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 MBLC20X30SU
The AirTAC MBLC20X30SU is a compact double-acting aluminum mini cylinder engineered for short 30 mm strokes in tight assemblies. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa. The defining feature over the base MBL series is its screw-adjustable pneumatic cushion at both ends, which decelerates the piston smoothly near stroke extremes rather than relying on a fixed rubber bumper.
This specific SKU includes a built-in magnet (S) for CMSG, DMSG, or EMSG sensor switches, and uses a rigid U flat-end back cover. The Ø8 mm hard-chrome carbon-steel rod operates within a riveted rolling-packed aluminum barrel, while a heterogeneous two-way grease-retaining piston seal maintains lubrication for speeds up to 800 mm/s.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X30SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X30SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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 MBLC20X30SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×30 | 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 MBLC20X30SU Is Used
PCB Probe Ejection
Uses the 30 mm short stroke and 157 N push force to eject printed circuit boards from test fixtures, relying on the adjustable cushion to prevent bouncing delicate components off the end cap.
Pharmacy Vial Diverting
Actuates a routing gate for small plastic vials on a packaging line, where the tunable air cushion ensures the high-speed 20 mm bore does not slam violently into the rear U flat-end cover.
Micro-Clamp Actuation
Drives a small clamping jaw in electronics assembly, using the -S magnet and a DMSG electronic sensor to confirm the 8 mm rod has reached the extended position before a robotic arm places a microchip.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X30SU the Right Cylinder?
At 157 N push at 0.5 MPa, this 20 mm bore is the smallest available in the MBLC range. If your application requires more force, stepping up to the 25 mm bore yields 245 N push at 0.5 MPa. Choose this MBLC version over the standard MBL when cycling speeds are high enough that a fixed bumper would cause premature end-cover wear or excessive noise. Remember that the adjustable air cushion only decelerates the rod near the ends; it is not a brake and will not hold a load if air pressure is lost. For position holding without live air, an external rod lock is required. This configuration uses a PT port thread, M8x1.25 rod-end thread, and a G1/8 port.
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 MBLC20X30SU FAQ
This 20 mm bore cylinder uses a G1/8 port and an M8x1.25 rod thread. At 0.5 MPa it provides 157 N push and 132 N pull force. At 0.7 MPa it provides 220 N push and 185 N pull. The maximum theoretical force is 32 kgf at 1.0 MPa.
The MBLC20X30SU features a screw-tunable needle valve at both ends that traps a pocket of exhaust air to decelerate the piston before it hits the end cover. You tune the needle to match your load and speed, which reduces impact noise and vibration compared to a fixed rubber bumper. It is strictly an end-of-stroke deceleration device, not a load lock.
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