Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X300SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X300SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 300mm 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
- Stroke300 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 MBLC25X300SU
The AirTAC MBLC25X300SU is a double-acting aluminum mini cylinder engineered for compact spaces requiring a 300 mm stroke. It delivers 245 N of push force and 206 N of pull force at 0.5 MPa. Unlike the standard MBL series, this variant utilizes a screw-adjustable pneumatic air cushion at both ends to decelerate the piston smoothly near stroke limits, significantly reducing end-cover impact and vibration on longer travels. The built-in magnet (-S) enables position detection with CMSG, DMSG, or EMSG sensor switches.
This model features a 25 mm bore, a Ø10 mm carbon-steel rod with 20 µm hard-chrome plating, and a G1/8 port. The riveted rolling-packed aluminum barrel keeps the body light and compact, while the heterogeneous two-way grease-retaining piston seal ensures consistent lubrication over the 30-800 mm/s speed range. The U flat-end back cover provides a rigid rear mounting face for secure, non-articulating installation.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X300SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X300SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 300 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 MBLC25X300SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×300 | 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 MBLC25X300SU Is Used
PCB Shuttle Gating
Routes bare printed circuit boards between SMT processing stations using the 245 N push force and 300 mm travel, relying on the air cushion to stop the shuttle smoothly without jarring delicate solder paste.
Carton Flap Folder
Folds secondary cardboard flaps on a packaging line where the 300 mm stroke provides the necessary reach, while the tunable cushion prevents hard mechanical stops that would skew lightweight carton alignment.
Chip Tray Ejector
Pushes populated semiconductor trays out of a test handler, using the -S magnet to confirm full ejection and the pneumatic cushion to decelerate the 206 N pull force before it impacts the rear cover.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X300SU the Right Cylinder?
At 0.5 MPa, this 25 mm bore generates 245 N push and 206 N pull force. If your application requires less force, step down to the 20 mm bore (157 N push / 132 N pull); if you need to move a heavier mass, step up to the 32 mm bore (402 N push / 346 N pull). Choose this MBLC cushioned version over the base MBL when running at higher speeds or cycling frequently, as the fixed rubber bumper on the MBL cannot adequately absorb the kinetic energy of a 300 mm move. To replace this unit exactly, match the 25 mm bore, 300 mm stroke, G1/8 port, PT thread, U flat-end back cover, and the -S magnet.
Because the stroke is 300 mm, the Ø10 mm rod is highly susceptible to side-load deflection and bending. To manage this, use an external guide rail, switch to a CA or SDB pivot bracket to accommodate arcing loads, or select an MBLD double-rod cylinder to prevent rod twist. Note that the adjustable air cushion only decelerates the piston near the stroke ends; it does not lock the rod or hold position if air pressure is lost or the valve centers.
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 MBLC25X300SU FAQ
This 25 mm bore cylinder provides 245 N push and 206 N pull at 0.5 MPa, 343 N push at 0.7 MPa, and a maximum theoretical force of 50 kgf at 1.0 MPa. The 300 mm stroke is within the standard range, which extends up to 500 mm (special orders can reach 800 mm).
A screw-tunable needle at both ends traps a pocket of exhaust air to decelerate the piston smoothly before it hits the end cover. You adjust the needle to match the load and speed of your 300 mm stroke, which cuts impact noise and wear. It is strictly an end-of-stroke damper, not a load lock or brake.
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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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