Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U
The AirTAC MBLC40X350U is a compact double-acting aluminum mini cylinder engineered with a screw-adjustable pneumatic cushion at both stroke ends. Delivering 628 N of push force and 528 N of pull force at 0.5 MPa, this 40 mm bore unit drives a 350 mm travel distance. The adjustable cushion decelerates the piston smoothly near the end caps, specifically cutting impact shock and vibration on heavier or fast-moving loads where a standard fixed rubber bumper would fail.
This SKU features a rigid U flat-end back cover for straightforward mounting and uses a G1/4 port paired with a Ø16 mm carbon-steel rod plated with 20 µm hard chrome. The riveted rolling-packed aluminum barrel keeps the body light and compact for tight spaces. Note that this specific configuration lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG electronic position sensors without modification.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U Is Used
Packaging Line Diverter
Routes heavy cartons on a 350 mm stroke at high cycle rates, relying on the adjustable air cushion to prevent end-cap slamming without slowing the 30-800 mm/s travel speed.
CNC Tool Tray Ejector
Pushes a loaded 628 N tooling tray out of a machining center, using the tunable cushion to stop the 40 mm bore smoothly without jarring precision components.
Palletizing Stop Gate
Acts as a rigid 350 mm stop gate for pallet infeed, where the U flat-end back cover mounts solidly and the pneumatic cushioning absorbs the kinetic energy of arriving loads.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U the Right Cylinder?
Choose this 40 mm bore when an application requires roughly 628 N of push force at 0.5 MPa. If your load is lighter, stepping down to the 32 mm bore yields 402 N of push force, while moving up to the 50 mm bore provides 981 N for heavier demands. The MBLC variant is preferred over the base MBL when cycle speeds are high enough that the fixed rubber bumper cannot adequately absorb the kinetic energy. As a direct replacement match, ensure the 350 mm stroke, G1/4 port, PT thread, U flat-end back cover, and non-magnet configuration are specified.
Because the 350 mm stroke is relatively long for a mini cylinder, the 16 mm rod has a lower tolerance for side loads. To prevent rod bending and premature seal wear, use an external guide rail, select a CA or SDB pivot bracket if the load arcs, or switch to an MBLD double-rod cylinder. Remember that the adjustable air cushion only decelerates the piston near the ends; it is not a mechanical lock, so the rod will drift if air pressure is lost or the valve centers.
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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350U FAQ
This 40 mm bore cylinder uses a G1/4 port and generates 628 N push / 528 N pull at 0.5 MPa, and 880 N push / 739 N pull at 0.7 MPa. The maximum theoretical force is 128 kgf at 1.0 MPa.
No, this specific SKU lacks the built-in magnet (no -S suffix), so it cannot host CMSG reed or DMSG/EMSG electronic switches. You would need the MBLC40X350SU variant for position detection.
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