Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X250CA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X250CA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 250mm 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
- Stroke250 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 MBLC40X250CA
The AirTAC MBLC40X250CA is a double-acting aluminum mini cylinder featuring a tunable pneumatic cushion at both stroke ends. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa, making it well-suited for driving heavier mechanisms over a 250 mm travel distance. The CA back cover provides a pivot clevis that articulates on a pin to absorb angular trajectory misalignment.
This variant lacks the -S code, so it is built without a magnet and cannot host CMSG, DMSG, or EMSG position sensors. It relies on a heterogeneous two-way grease-retaining piston seal and a 20 um hard-chrome carbon-steel rod to maintain smooth, low-friction operation across its 30-800 mm/s speed range.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X250CA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X250CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 MBLC40X250CA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 MBLC40X250CA Is Used
Packaging Palletizer Arm
Drives a 250 mm lifting arm in a case palletizer, using the tunable cushion to softly stop the 628 N push force without slamming the end cap at high cycle rates.
Textile Guiding Mechanism
Shifts a fabric guide roller through 250 mm of travel, where the CA pivot clevis accommodates the slight arc of the linkage while maintaining steady tension.
CNC Tool Change Carousel
Indexes a tool magazine rack outward to clear the spindle, relying on the adjustable needle to decelerate the heavy rack smoothly before the end of the stroke.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X250CA the Right Cylinder?
For 0.5 MPa operations needing less thrust, the 32 mm bore yields 402 N push and 346 N pull, whereas stepping up to the 50 mm bore provides 981 N push and 881 N pull. Choose this MBLC over the base MBL when your cycle speeds or moved mass outpace what a fixed rubber bumper can safely absorb.
Because this 250 mm stroke exceeds 300 mm limits in compact assemblies, manage side-load risks by utilizing the CA pivot clevis, adding an external guide, or switching to an MBLD double-rod cylinder. The direct replacement match is: 40 mm bore, 250 mm stroke, G1/4 port, PT thread, CA back cover, no magnet, no sensor.
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 MBLC40X250CA FAQ
At 0.5 MPa, the 40 mm bore generates 628 N of push force and 528 N of pull force. At 0.7 MPa, push increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa.
A screw-tunable needle at both ends restricts exhaust flow to decelerate the piston smoothly near stroke limits, protecting the end covers on fast or heavy moves. It only dampens end-of-stroke motion; it is not a lock and will not hold the load if air pressure is lost.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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