Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175SCA
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 175mm 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
- Stroke175 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 MBL25X175SCA
The AirTAC MBL25X175SCA is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It delivers a push force of 245 N at 0.5 MPa over a 175 mm stroke, making it well-suited for mid-travel positioning tasks. 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 CA pivot back cover, allowing the cylinder to swing on a pin to accommodate arcing or angular loads. It also features a built-in magnet (-S) for non-contact position detection using AirTAC CMSG (reed) or DMSG/EMSG (electronic) sensor switches. The carbon-steel piston rod is plated with 20 µm of hard chrome for wear resistance, and the heterogeneous two-way piston seal retains grease for a long service life.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175SCA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 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 MBL25X175SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×175 | 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 MBL25X175SCA Is Used
PCB Router Z-Axis
Drives the vertical plunge of a light routing spindle on a desktop PCB prototyping machine, where the 245 N push force and CA pivot cover absorb minor angular misalignments during rapid Z-axis plunges.
Pouch Packaging Flap
Actuates a secondary folding flap on a small vertical form-fill-seal pouch machine, using its 175 mm travel to clear the film web path during product drop and retraction.
Semiconductor Wafer Gate
Opens and closes a mini access gate inside a wafer sorting chamber, relying on the built-in magnet to trigger a DMSG solid-state switch for precise end-position confirmation.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175SCA the Right Cylinder?
Stepping down in force, the neighbouring Ø20 bore provides 157 N of push at 0.5 MPa, which may be insufficient for a 175 mm travel under load. Stepping up, the Ø32 bore offers 402 N at 0.5 MPa for heavier moving masses. Because this is a 175 mm stroke on a small Ø10 rod, external guidance is recommended to prevent rod-bearing bending under side loads.
The base MBL uses a fixed rubber bumper to soften end-of-stroke impacts; if your application requires adjustable end-speed control, select the MBLC variant. Note that this cylinder does not hold its load when air pressure is lost or exhausted—the rod will drift. Use an external pilot-operated check valve or rod lock for position holding. Replacement match: 25 mm bore, 175 mm stroke, G1/8 port, PT thread, CA pivot back cover, with -S magnet.
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 MBL25X175SCA FAQ
This 25 mm bore cylinder provides a push force of 245 N and a pull force of 206 N at 0.5 MPa. At 0.7 MPa, the push force is 343 N, and it reaches a maximum theoretical force of 50 kgf at 1.0 MPa.
No, the base MBL uses a fixed rubber bumper to absorb impact, not an adjustable air cushion. If your application requires adjustable end-speed control for heavier moving loads, you should select the MBLC variant instead.
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