Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 50mm stroke, 1/8" air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ40 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50U
The AirTAC MBL40X50U is a double-acting aluminum mini round cylinder engineered for tight machine spaces. With a 40mm bore and 50mm stroke, it generates 628 N of push force and 528 N of pull force at 0.5 MPa. The U suffix denotes a rigid flat-end rear cover, providing a solid fixed mounting foot for straightforward linear actuation. Because this specific SKU lacks the -S suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor switch.
Inside this compact riveted rolling-packed barrel, a heterogeneous two-way piston seal retains grease for long service life. The carbon steel piston rod features 20 um hard-chrome plating to resist wear and surface corrosion. End-of-stroke energy is absorbed by a fixed rubber bumper rather than an adjustable air cushion, making this variant ideal for predictable, moderate-speed moves rather than heavy high-impact loads.
Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| 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 MBL40X50U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MBL40X50U Is Used
PCB Router Clamping
Secures printed circuit board panels during high-speed routing operations, utilizing the 628 N push force to prevent substrate vibration.
Carton Flap Folding
Folds minor corrugated box flaps prior to case sealing on compact packaging lines, fitting easily into narrow conveyor side-guards.
Connector Insertion
Presses IDC connectors onto ribbon cable headers in electronics assembly, applying consistent 528 N retraction force for proper seating.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50U the Right Cylinder?
This 40mm bore provides 628 N of thrust at 0.5 MPa. If your assembly needs less force, step down to the 32mm bore which provides 402 N of push force. If you require greater power, step up to the 50mm bore which delivers 981 N at 0.5 MPa. For faster cycle times or heavier moving masses, consider the MBLC variant which replaces the fixed rubber bumper with an adjustable air cushion. If your mechanism only requires air to extend the rod, the MSBL single-acting push cylinder (available in 40mm) saves space and one air line.
Because this base MBL model operates via a fixed rubber bumper, it does not hold the load position when air pressure is lost or the valve is centered—the rod will drift. Use an external rod lock or pilot-operated check valve if gravity loads must be safely suspended. Replacement parts must match the 40mm bore, 50mm stroke, 1/8" port size, PT thread form, and the U flat-end back cover.
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 MBL40X50U FAQ
At 0.5 MPa this 40mm bore cylinder provides 628 N push and 528 N pull force. At 0.7 MPa the push force is 880 N, and the maximum theoretical force is 128 kgf at 1.0 MPa. It uses a Ø16 mm carbon steel rod with an M12x1.25 rod-end thread.
No. The MBL40X50U uses a fixed rubber bumper to soften end-of-stroke impacts; it does not have an adjustable cushion screw. For adjustable air cushioning, select the MBLC variant. Additionally, this specific SKU lacks a built-in magnet, so CMSG, DMSG, or EMSG sensor switches cannot be fitted to detect rod position.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MBL Aluminum Alloy Mini Cylinder MBL40X50U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.