
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X25SCA 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.
The AirTAC MBLC20X25SCA is a compact double-acting aluminum mini cylinder featuring a screw-adjustable air cushion at both ends. Generating 157 N of push force and 132 N of pull force at 0.5 MPa, this 20 mm bore unit is built for tight spaces. The 25 mm stroke provides short, precise linear movement, while the integrated magnet enables position detection.
Unlike the standard MBL which relies on a fixed rubber bumper, this MBLC variant lets you tune the end-of-stroke deceleration via a needle valve, reducing impact and noise on fast cycling. The riveted rolling-packed aluminum barrel keeps the body light, and the 20 um hard-chrome plating on the carbon-steel rod defends against wear. The CA pivot back cover swings on a pin to accommodate arcing loads, which is critical given the low side-load tolerance of the 8 mm rod.
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X25SCA |
|---|---|
| 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.
| 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.
| 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).
Ideal for 25 mm micro-stroke lifting on SMT nozzles, where 157 N push force and tunable cushioning prevent jarring stops that could dislodge delicate chips.
The CA pivot clevis handles the angular rod movement required to flap a lightweight sorting guide on a packaging conveyor at high frequency.
Short 25 mm stroke provides the exact downward travel needed to seat ribbon cable connectors, using the DMSG electronic sensor to confirm seating depth.
For slightly less force in an even tighter footprint, the neighboring 20 mm bore is the smallest available size, so stepping down is not an option; you would instead step up to the 25 mm bore, which yields 245 N push at 0.5 MPa if your payload increases. Choose this MBLC over the base MBL when your cycle speeds exceed what a fixed rubber bumper can absorb without bouncing. Note that the adjustable air cushion only decelerates the piston near the stroke ends; it is not a brake and will not hold the load if air pressure drops. For exact replacement, match the 20 mm bore, 25 mm stroke, G1/8 port, PT thread, CA pivot cover, and the S magnet.
Quick checklist
At 0.5 MPa it provides 157 N push and 132 N pull. 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 adjustable air cushion uses a screw needle to tune end-of-stroke deceleration, protecting the end covers on fast moves. The built-in S magnet works with AirTAC CMSG reed switches or DMSG/EMSG electronic sensors for rod position detection.
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