
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X500SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 500mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
The AirTAC MBL25X500SCA is a double-acting aluminum mini round cylinder engineered for compact spaces requiring a very long 500 mm stroke. It delivers 245 N of push force and 206 N of pull force at 0.5 MPa, making it suitable for moving light components across extended distances. This non-standard 500 mm stroke is manufactured to order up to the 800 mm maximum. The body uses a riveted rolling-packed aluminum barrel, crimping the covers directly to the tube for a lightweight footprint that is not designed to be disassembled like a tie-rod cylinder.
This SKU includes a CA pivot back cover, allowing the cylinder body to swing freely on a pin to accommodate arcing or angular loads during its long traverse. It also features a built-in magnet (-S) for compatibility with AirTAC CMSG reed and DMSG/EMSG electronic sensor switches to track rod position. The carbon-steel piston rod is plated with 20 µm of hard chrome for wear and corrosion resistance, while a heterogeneous two-way piston seal retains grease internally for a long service life. End-of-stroke impact is absorbed by a fixed rubber bumper rather than an adjustable air cushion.
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X500SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 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.
| 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.
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×500 | 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).
Uses the 500 mm stroke and CA pivot to smoothly arc and guide yarn carriers across a wide weaving bed, relying on the 245 N push force at 0.5 MPa to tension light threads without snapping them.
Swings corrugated box flaps closed on a continuous conveyor line, where the compact aluminum body fits between roller gaps and the magnet triggers a DMSG sensor to confirm the fold.
Pushes populated circuit board trays out of a wave soldering chamber over a long 500 mm travel, using the fixed rubber bumper to deaden the stop impact at high cycle rates.
To size this bore correctly, stepping down to the 20 mm bore reduces the 0.5 MPa push force to 157 N, while stepping up to the 32 mm bore increases it to 402 N. Because this is a 500 mm stroke on a small Ø10 mm rod, side-load tolerance is very low; the rod bearing will bend under lateral stress without external guidance. The CA pivot back cover is essential here to absorb angular misalignment, but you should also add an external guide rail or consider the MBLD double-rod type to prevent binding over this long extension. If you need softer end-of-stroke deceleration for heavier moving masses, switch to the MBLC variant which features an adjustable air cushion instead of the standard fixed rubber bumper. Remember that this base MBL does not hold its load if air pressure is lost or the valve is centered; the rod will drift and drop, so fit an external pilot-operated check valve if position holding is critical. Replacement match: 25 mm bore, 500 mm stroke, G1/8 port, PT thread, CA pivot back cover, no mounting accessory specified, with magnet.
Quick checklist
At 0.5 MPa this 25 mm bore cylinder provides 245 N of push force and 206 N of pull force, increasing to 343 N push at 0.7 MPa, with a theoretical maximum of 50 kgf at 1.0 MPa. The 500 mm stroke specified here is a non-standard made-to-order length, extending up to an absolute maximum of 800 mm for this bore size.
No, the base MBL uses a fixed rubber bumper to soften end-of-stroke impacts and cannot be adjusted. If your application requires tunable end-position deceleration for heavier or faster-moving loads, you must select the MBLC variant, which features an adjustable air cushion screw.
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