Airtac MBL Aluminum Alloy Mini Cylinder MBL20X500SCA
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL20X500SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm 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.
- BoreØ20 mm
- Stroke500 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X500SCA
The AirTAC MBL20X500SCA is a double-acting aluminum mini round cylinder engineered for tight spaces, pairing a 20mm bore with an extended 500mm stroke. As a made-to-order non-standard stroke, it delivers 157N of push force and 132N of pull force at 0.5 MPa. The riveted rolling-packed body keeps the footprint small and lightweight, though the crimped front and back covers mean it is not designed to be disassembled for rebuilding like a tie-rod cylinder.
This SKU includes a CA pivot back cover, allowing the cylinder body to swing on a pin to absorb arcing or angular loads. It also features a built-in magnet (-S) for use with AirTAC CMSG, DMSG, and EMSG sensor switches to track rod position. The carbon-steel piston rod is plated with 20 um of hard chrome to resist wear and corrosion, and the heterogeneous two-way piston seal retains grease for a long service life.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X500SCA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X500SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 MBL20X500SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | 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).
Where the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X500SCA Is Used
Textile Loom Thread Guide
Uses the 500mm stroke and CA pivot to traverse a yarn guide across a wide loom carriage, absorbing angular misalignment while keeping the cylinder body compact within the frame.
Packaging Reject Diverter
Extends a paddle to push misaligned cartons off a narrow conveyor belt, relying on the 157N push force at 0.5 MPa and the -S magnet to confirm diversion via a DMSG sensor.
PCB Panel Sorting Gate
Actuates a lightweight sorting flap in an electronics assembly line, where the small 20mm bore footprint fits between dense machine guards and the fixed rubber bumper softens the flap impact.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X500SCA the Right Cylinder?
For sizing flexibility, stepping down is not an option as 20mm is the smallest MBL bore. Stepping up to the 32mm bore increases push force to 402N at 0.5 MPa if your application needs more authority. Because this is a 500mm stroke on an Ø8mm rod, side-load tolerance is very low; the CA pivot back cover on this specific SKU is essential to prevent rod-bearing bending, though an external guide is still recommended for rigid loads. If you need adjustable end-of-stroke deceleration instead of the fixed rubber bumper, select the MBLC variant. Note that a plain MBL cannot hold a load without live air pressure; the rod will drift if air is lost or the valve is centered, so use an external pilot-operated check valve if position holding is required. Replacement match: 20mm bore, 500mm stroke, G1/8 port, PT thread, CA back cover, no mounting accessory, with 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 MBL20X500SCA FAQ
At 0.5 MPa, the push force is 157N and the pull force is 132N. At 0.7 MPa, the push force is 220N. The theoretical maximum force is 32 kgf at 1.0 MPa. The operating speed ranges from 30-800 mm/s.
No, the base MBL uses a fixed rubber bumper to soften end-of-stroke impact, not an adjustable cushion screw. If your load requires adjustable air cushioning for heavier or faster moves, you must use the MBLC variant.
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