Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 500mm 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
- Stroke500 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 MBLC40X500U
The AirTAC MBLC40X500U is a double-acting aluminum mini cylinder engineered for a 500 mm stroke, delivering 628 N of push force and 528 N of pull force at 0.5 MPa. Because this model utilizes a screw-adjustable pneumatic air cushion at both stroke ends rather than a fixed rubber bumper, operators can fine-tune the end-of-stroke deceleration to match heavy or fast-moving loads. This significantly dampens impact noise and protects the end covers during high-frequency cycling. It is a compact, riveted rolling-packed body designed to fit tight spaces where a standard ISO 15552 tie-rod cylinder would be too bulky.
This specific SKU features a flat-end U back cover for rigid rear mounting and uses a G1/4 port paired with a Ø16 mm hard-chrome carbon steel rod (M12x1.25 thread). It does not include a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors. The heterogeneous two-way grease-retaining piston seal maintains lubrication over long strokes, while the adjustable cushion needle ensures smooth stops without acting as a physical load lock.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 MBLC40X500U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500U Is Used
Carton Erector Pusher
Drives a 500 mm stroke to fold and erect heavy corrugated cartons on a packaging line, using the tunable air cushion to softly decelerate the 628 N push force without slamming the frame.
Textile Beam Lifter
Raises heavy textile warp beams into a loom loading position, where the adjustable end cushion absorbs the kinetic energy of the vertically lifted mass to protect the machinery.
Pallet Divider Feeder
Separates sheet metal blanks or wooden pallet boards in a magazine feeder, relying on the 500 mm stroke and rigid U flat-end mount to push heavy stacks consistently.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500U the Right Cylinder?
Select this 40 mm bore when an application requires roughly 628 N of push force at 0.5 MPa across a 500 mm travel. If you need less force, stepping down to the 32 mm bore yields 402 N push, while stepping up to the 50 mm bore provides 981 N push. Choose this MBLC variant over the base MBL when your cycle speeds or moved masses are high enough that a fixed rubber bumper would wear out or cause damaging end-cover impact. Remember that the adjustable air cushion only decelerates the piston near the ends; it is not a brake, so the rod will drift if air pressure is lost.
At 500 mm of travel, the Ø16 mm rod is highly susceptible to side-loading and bending. To prevent premature seal failure and rod scoring, you must use an external guide rail, pair the cylinder with a pivot bracket (SDB) or clevis (CA) back cover for arcing loads, or switch to an MBLD double-rod cylinder. This SKU uses a default PT tapered port thread and a rigid U back cover. As it lacks the -S magnet suffix, position sensing is not possible on this unit.
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 MBLC40X500U FAQ
This 40 mm bore cylinder uses a G1/4 port and a Ø16 mm rod. At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it provides 880 N push and 739 N pull. The maximum theoretical force is 128 kgf at 1.0 MPa.
A screw-tunable needle valve at both ends traps a pocket of exhaust air to decelerate the piston smoothly before it hits the end cover. You adjust it to match your load and speed, which cuts impact vibration. It only functions near the stroke ends and does not lock or hold the rod in place.
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