Airtac MBL Aluminum Alloy Mini Cylinder MBL40X400SCA
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X400SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 400mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ40 mm
- Stroke400 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X400SCA
The AirTAC MBL40X400SCA is a double-acting aluminum mini round cylinder engineered for compact machinery where a larger ISO profile body will not fit. It generates 628 N of push force and 528 N of pull force at 0.5 MPa, making this 40 mm bore unit well-suited for moving mid-weight jigs over its 400 mm stroke. The riveted rolling-packed barrel keeps the overall body weight low, though the crimped front and back covers mean the cylinder is not designed to be disassembled for internal rebuilding like a conventional tie-rod unit.
This specific SKU is configured with a CA pivot back cover, allowing the cylinder body to swing on a pin to accommodate arcing or angular motion during the 400 mm travel. It includes a built-in magnet (-S) for non-contact position detection using AirTAC CMSG reed or DMSG and EMSG solid-state sensor switches. End-of-stroke impact is absorbed by a fixed rubber bumper rather than an adjustable cushion valve, which is standard for the base MBL line.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X400SCA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X400SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 MBL40X400SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 MBL40X400SCA Is Used
Textile Loom Guiding
Drives a yarn guide carriage across a 400 mm path, utilizing the CA pivot back cover to absorb slight angular misalignment common in high-speed weaving looms.
Packaging Flap Folder
Actuates a cardboard flap-folding arm on a case erector, using its 628 N push force at 0.5 MPa to cleanly crease heavy corrugated material.
Bottling Line Diverter
Pushes a routing gate on a high-speed bottling conveyor, relying on the -S magnet and a DMSG electronic sensor to confirm gate position to the PLC.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X400SCA the Right Cylinder?
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force. If your application requires less force, stepping down to the 32 mm bore yields 402 N of push force; if you need more power, the 50 mm bore provides 981 N. For faster or heavier loads where end-cushioning is critical, consider the MBLC variant which features an adjustable air cushion instead of the fixed rubber bumper. If you only need a push or pull action without continuous air supply, the MSBL or MTBL single-acting versions are alternatives.
Because the 400 mm stroke is substantial for a mini cylinder with a Ø16 mm rod, side-load tolerance is low and the rod bearing is prone to bending if misaligned. The CA pivot back cover on this unit helps safely absorb angular arcing loads, but for strictly linear travel over this length you should use an external guide or switch to the MBLD double-rod cylinder to prevent binding. Remember that a standard double-acting cylinder does not hold its load if air pressure drops or the valve is centered; the rod will drift. Use an external rod lock or pilot-operated check valve if the mechanism must hold position safely without live pressure. Replacement units must match the 40 mm bore, 400 mm stroke, G1/4 port size, PT thread form, CA pivot back cover, and the -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 MBL40X400SCA FAQ
This 40 mm bore cylinder delivers 628 N push and 528 N pull at 0.5 MPa, and 880 N push at 0.7 MPa. Its maximum theoretical force is 128 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
No, the base MBL cylinder uses a fixed rubber bumper to soften end-of-stroke impacts and cannot be adjusted. If your 400 mm stroke application requires tunable cushioning for heavier moving masses, you should step up to the MBLC variant which features an adjustable air cushion.
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