Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X25CA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X25CA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 25mm 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
- Stroke25 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 MBLC20X25CA
The AirTAC MBLC20X25CA is a double-acting aluminum mini cylinder with a 20mm bore and 25mm stroke, delivering 157N of push force at 0.5MPa. It features a screw-adjustable pneumatic cushion at both ends, allowing you to tune end-of-stroke deceleration for fast, repetitive moves. This protects the end covers from impact and cuts vibration, outperforming a fixed rubber bumper on high-frequency tasks. The cushion only decelerates near the ends; it is not a load lock.
This SKU uses a CA pivot clevis back cover that swings on a pin to accommodate arcing or angular loads. It has a Ø8mm carbon-steel rod with 20µm hard-chrome plating and a heterogeneous two-way grease-retaining piston seal. The riveted rolling-packed aluminum barrel keeps the body compact and light. Note that this specific configuration lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG sensor switches for position detection.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X25CA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X25CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 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 MBLC20X25CA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 MBLC20X25CA Is Used
PCB Router Gantry
Actuates a light pick head on a printed circuit board routing gantry, where the 25mm stroke and tunable cushion prevent shock at the 157N force level during rapid indexing.
Pharmaceutical Diverter
Swings a small parts deflector flap on a pill-sorting conveyor, using the CA pivot clevis to accommodate the arc of the 132N pull load while diverting vials.
Battery Tab Press
Tamps lithium-ion battery tabs in a cell assembly machine, relying on the 20µm hard-chrome rod and adjustable air cushion to decelerate the 32kgf max impact smoothly.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X25CA the Right Cylinder?
At 0.5MPa, this 20mm bore yields 157N push and 132N pull. If your application requires less force, there is no smaller standard MBL bore, so you would step down by reducing pressure. If you need more power, step up to the 25mm bore, which provides 245N push and 206N pull at 0.5MPa. Choose the MBLC over the base MBL when your cycle speed is high enough that the fixed bumper cannot absorb the kinetic energy. This CA pivot model is ideal for arcing loads, but a plain double-acting cylinder does not hold position when air is lost; use an external rod lock for fail-safe holding. The replacement match is bore 20, stroke 25, G1/8 port, PT thread, CA back cover, no mounting, 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 MBLC20X25CA FAQ
At 0.5MPa it pushes 157N and pulls 132N. At 0.7MPa it pushes 220N and pulls 185N. The maximum theoretical force is 32kgf at 1.0MPa. It uses a G1/8 port with PT tapered thread, an Ø8mm rod, and an M8x1.25 rod-end thread.
No. This MBLC20X25CA configuration does not have a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG sensor switches. You would need the MBLC20X25CAS variant to mount reed or electronic solid-state sensors for rod position detection.
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