Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X250SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X250SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 250mm 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
- Stroke250 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 MBLC25X250SU
The AirTAC MBLC25X250SU is a double-acting aluminum mini cylinder with a 25mm bore and 250mm stroke. It delivers 245N of push force and 206N of pull force at 0.5 MPa. Unlike the base MBL series, this MBLC variant features a screw-adjustable pneumatic air cushion at both ends of the stroke. You tune the needle to smoothly decelerate the piston near the end caps, which is critical for reducing impact, noise, and vibration on faster or heavier moves.
This specific SKU includes a built-in magnet (-S) for compatibility with AirTAC CMSG, DMSG, and EMSG sensor switches to detect rod position. The U code denotes a rigid flat-end back cover. The body utilizes a riveted rolling-packed aluminum barrel for a compact, lightweight footprint, while the Ø10mm carbon-steel rod features 20µm hard-chrome plating paired with a heterogeneous two-way grease-retaining piston seal for lasting friction control.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X250SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X250SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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 MBLC25X250SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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 MBLC25X250SU Is Used
Textile Loom Weft Insertion
Drives the rapier head on a weaving loom, utilizing the 245N push force and tuned air cushion to smoothly reverse the 250mm stroke at high cycle rates without jarring the rigid U back cover.
PCB Panel Pusher
Transfers bare circuit boards across a testing lane, where the 250mm travel and CMSG reed sensor confirm the extended position before the tester descends.
Carton Flap Folder
Folds minor flaps on a packaging line, relying on the adjustable end-of-stroke deceleration to prevent crushing the cardboard at the end of the 250mm move.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X250SU the Right Cylinder?
At 0.5 MPa, this 25mm bore yields 245N push and 206N pull. If your load requires less force, step down to the 20mm bore offering 157N push; if you need more clamping power, step up to the 32mm bore providing 402N push. Choose this MBLC cushioned version over the standard MBL when your cycle speeds are high or the moved mass is substantial, as the fixed rubber bumper of the MBL cannot absorb heavier kinetic energy. Note that the air cushion only decelerates the piston near the ends; it is not a brake. A plain double-acting cylinder does not hold position if air is lost or the valve centers, so add an external rod lock for fail-safe holding. This 250mm stroke uses a G1/8 port, PT thread, M10x1.25 rod-end, U flat-end cover, and an S magnet. Because the stroke is 250mm, the small Ø10mm rod has limited side-load tolerance; use an external guide, a CA/SDB pivot, or an MBLD double-rod cylinder to prevent rod bending.
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 MBLC25X250SU FAQ
At 0.5 MPa, it provides 245N push and 206N pull. At 0.7 MPa, it provides 343N push and 289N pull. The maximum theoretical force is 50 kgf at 1.0 MPa.
The cushion is a screw-tunable needle at both ends that traps exhaust air to decelerate the piston smoothly near the end of the stroke; it is not a load lock or brake. The S in the model code means a built-in magnet is fitted, allowing you to mount CMSG, DMSG, or EMSG sensor switches for position detection.
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