Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 20mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ25 mm
- Stroke20 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20SU
The AirTAC MBLC25X20SU is a compact double-acting aluminum mini cylinder engineered for short 20mm strokes. It yields 245 N push and 206 N pull at 0.5 MPa, fitting tight assembly jigs. Unlike the base MBL, this variant integrates a screw-adjustable pneumatic cushion at both ends, letting you dial in end-of-stroke deceleration to protect end covers on fast moves.
The U suffix specifies a rigid flat-end back cover for straight-line thrust. The S code equips the cylinder with a built-in magnet for CMSG reed or DMSG/EMSG electronic sensor switches. A heterogeneous two-way grease-retaining piston seal and a Ø10 mm hard-chrome carbon-steel rod ensure smooth friction dynamics within the riveted rolling-packed barrel.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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 MBLC25X20SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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 MBLC25X20SU Is Used
PCB Pick & Place
Ideal for short-travel pick and place heads moving delicate printed circuit boards, where the 245 N force is sufficient and the tuned cushion stops hard cover impacts at high cycle rates.
Carton Flap Folding
Drives a short 20mm folding arm on packaging lines to tuck small carton flaps, benefiting from the compact riveted barrel fitting between conveyor guide rails.
Connector Insertion
Presses electronic ribbon connectors into housing slots with a gentle 206 N pull, using the DMSG sensor to verify the exact insertion depth before the press retracts.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20SU the Right Cylinder?
For lighter tasks needing less footprint, step down to the 20 mm bore, which provides 157 N push at 0.5 MPa. If your fixture requires more power, step up to the 32 mm bore, giving 402 N push at 0.5 MPa. Choose this MBLC over the fixed-bumper MBL when cycling rapidly over the 20mm travel, as the tuned cushion absorbs kinetic energy that a rubber bumper cannot.
This PT-threaded model uses a G1/8 port and an M10x1.25 rod-end. Because the cushion only decelerates near the stroke ends and is not a brake, the rod will drift if air is lost or the valve centers; add an external rod lock for strict position holding.
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 MBLC25X20SU FAQ
At 0.5 MPa, it provides 245 N push and 206 N pull. At 0.7 MPa, it provides 343 N push. The maximum theoretical force is 50 kgf at 1.0 MPa.
A screw-tunable needle at both stroke ends traps exhaust air to decelerate the piston smoothly. This is superior to a fixed rubber bumper for fast 20mm moves, reducing noise and impact, but it does not lock the rod.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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