Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X40SCA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X40SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 40mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ20 mm
- Stroke40 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X40SCA
The AirTAC MBLC20X40SCA is a compact double-acting aluminum mini cylinder engineered with a screw-adjustable pneumatic cushion at both stroke ends. Generating 157 N of push force at 0.5 MPa, it is tailored for short 40 mm movements. The CA pivot back cover allows the body to swing on a pin, accommodating angular articulation without binding.
This 20 mm bore unit features a 20 µm hard-chrome plated carbon-steel rod and a heterogeneous two-way grease-retaining piston seal. Its riveted rolling-packed aluminum barrel keeps the envelope tight for cramped machine layouts. The integrated -S magnet enables position detection via CMSG reed or DMSG/EMSG electronic sensor switches.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X40SCA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X40SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 MBLC20X40SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 MBLC20X40SCA Is Used
PCB Depaneling Router
Drives the cutting head on a PCB router, using the 40 mm stroke and 157 N force to precisely profile circuit boards while the cushion prevents jarring at stroke end.
Pouch Transfer Arm
Actuates a short transfer arm on a packaging line, where the CA clevis accommodates the slight angular swing needed to push pouches between belts.
Pick-and-Place Z-Axis
Provides vertical pick-up motion for small electronic chips, using the -S magnet with a DMSG sensor to confirm the 40 mm up/down position for the control system.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X40SCA the Right Cylinder?
For lighter duty, the 20 mm bore is the smallest available, so stepping up means choosing the 25 mm size (245 N push at 0.5 MPa). Choose this MBLC over the base MBL when your cycle speed demands smoother end-of-stroke deceleration than a fixed rubber bumper can provide. The adjustable air cushion only dampens the final approach; it will not lock the rod or hold a load if air pressure drops. Replacement match: 20 mm bore, 40 mm stroke, G1/8 port, PT thread, CA pivot back cover, built-in magnet.
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 MBLC20X40SCA FAQ
At 0.5 MPa it delivers 157 N push and 132 N pull. At 0.7 MPa it provides 220 N push, with a maximum theoretical force of 32 kgf at 1.0 MPa.
A screw-tunable needle at both ends traps a pocket of air to decelerate the piston smoothly before it hits the end cover. You adjust the bleed rate to match your load and speed, which cuts impact wear and noise—this replaces the fixed rubber bumper found on the base MBL.
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Genuine AirTAC parts produced by AirTAC factory.
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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Most inquiries answered within 7-8 hours.
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