Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X75SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X75SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 MBLC40X75SU
The AirTAC MBLC40X75SU is a double-acting aluminum mini cylinder featuring a 40mm bore and 75mm stroke, delivering 628N of push force at 0.5 MPa. Unlike the base MBL series, this variant uses a screw-adjustable pneumatic cushion at both stroke ends. Tuning the needle valves lets you decelerate the piston smoothly, minimizing end-cover impact and vibration on heavier loads without acting as a mechanical lock.
This 75mm travel version is equipped with a built-in magnet (S) for CMSG, DMSG, or EMSG sensor switches, and a U flat-end back cover for rigid mounting. The riveted rolling-packed barrel keeps the body compact for tight spaces, while the Ø16 carbon-steel rod with 20µm hard-chrome plating resists wear. A heterogeneous two-way grease-retaining piston seal ensures consistent lubrication across its 30-800mm/s operating speed range.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X75SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X75SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MBLC40X75SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MBLC40X75SU Is Used
PCB Drill Spindle Lift
Raises and lowers a precision spindle on an electronics assembly line, using the tunable cushion to prevent harsh stopping that could misalign micro-drills during rapid 75mm strokes.
Bottle Diverter Gate
Actuates a routing flap on a packaging conveyor, relying on the 628N push force to move heavier cartons while the adjustable air cushion softens the end-of-stroke impact at high cycle rates.
Pallet Component Pusher
Indexes small aluminum brackets into a robotic pick station, where the built-in magnet triggers a DMSG sensor to confirm the 75mm extension before the robot enters the workspace.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X75SU the Right Cylinder?
Choose this 40mm bore when you need 628N push at 0.5 MPa but want to avoid the bulk of the 50mm bore (981N). If your load is lighter, the 32mm bore offers 402N. Step up to the 50mm only if your mass requires higher thrust. Select the MBLC over the fixed-bumper MBL when cycling fast or moving heavy payloads that would prematurely wear a rubber stop. For exact replacements, match the 40mm bore, 75mm stroke, G1/4 port, PT thread, U back cover, and S magnet. Note that the adjustable cushion only decelerates near the ends; it will not hold position if air pressure drops.
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 MBLC40X75SU FAQ
At 0.5 MPa, this 40mm bore cylinder provides 628N of push force and 528N of pull force. At 0.7 MPa, push increases to 880N. The maximum theoretical force is 128 kgf at 1.0 MPa.
The cushion is a screw-tunable needle valve at both ends that traps exhaust air to decelerate the piston before it hits the end cover. You adjust it to match your specific load and speed, which reduces noise and wear compared to a fixed rubber bumper. It is strictly a deceleration device and does not lock the rod in place.
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