Airtac MBL Aluminum Alloy Mini Cylinder MBL25X450SU
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X450SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X450SU
The AirTAC MBL25X450SU is a double-acting aluminum mini round cylinder engineered for compact spaces requiring a long 450mm stroke. It delivers a push force of 245 N and a pull force of 206 N at 0.5 MPa, making it well-suited for routing parts across a wide span. The riveted rolling-packed barrel keeps the body light and small, though it is not designed to be disassembled like a tie-rod cylinder. This specific SKU includes a U (flat-end) rigid rear back cover for fixed mounting.
This model features a built-in magnet (-S) for use with AirTAC CMSG, DMSG, and EMSG sensor switches to track rod position over the long travel. Internally, a heterogeneous two-way piston seal retains grease for long service life, while the Ø10 mm carbon-steel piston rod features 20 µm hard-chrome plating for wear and corrosion resistance. As a base MBL, end-of-stroke impact is absorbed by a fixed rubber bumper rather than an adjustable air cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X450SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X450SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 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 MBL Aluminum Alloy Mini Cylinder MBL25X450SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×450 | 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 MBL Aluminum Alloy Mini Cylinder MBL25X450SU Is Used
PCB Shuttle Transfer
Pushes populated PCB panels 450 mm between an SMT pick-and-place line and the inspection station, utilizing the 245 N push force and compact 25 mm body to fit under the conveyor frame.
Carton Sorting Diverter
Extends a flat belt diverter arm to route small packaging cartons on a 450 mm lane shift, where the lightweight riveted aluminum body minimizes the moving mass on the overhead gantry.
Test Handler Escapement
Feeds semiconductor IC tubes into a marking machine over a 450 mm span, using the -S magnet and a DMSG solid-state switch to confirm the gripper has fully retracted before the next cycle.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X450SU the Right Cylinder?
For lower force needs, stepping down to the 20 mm bore offers 157 N push at 0.5 MPa, while stepping up to the 32 mm bore provides 402 N push if your payload exceeds 245 N. The fixed rubber bumper is adequate for standard speeds, but for heavier moving masses at the end of a 450 mm travel, consider the MBLC variant which adds an adjustable air cushion. If you need the rod to spring-return, the MSBL (push) or MTBL (pull) single-acting versions are the correct choice.
Because this 450 mm stroke is well above the 300 mm threshold, the small Ø10 mm rod has low side-load tolerance and is prone to bending under lateral forces. To manage this, use an external guide rail, pair the cylinder with an SDB pivot bracket (which requires a CA back cover instead of this U type), or switch to the MBLD double-rod cylinder for anti-rotation. Note that a plain MBL does not hold its load if air pressure drops; use an external rod lock or pilot-operated check valve for safety. Replacement match: 25 mm bore, 450 mm stroke, G1/8 port, PT thread, U flat-end back cover, no mounting accessory, with magnet (-S).
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 MBL Aluminum Alloy Mini Cylinder MBL25X450SU FAQ
At 0.5 MPa, the push force is 245 N and the pull force is 206 N. At 0.7 MPa, the push force is 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa. The operating speed range is 30-800 mm/s for this double-acting cylinder.
No, the base MBL25X450SU uses a fixed rubber bumper to absorb end-of-stroke impact and does not have an adjustable cushion screw. If your moving mass causes hard impacts at the end of the 450 mm travel, you should step up to the MBLC variant, which features an adjustable air cushion.
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