Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X20SCA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X20SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 20mm 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
- Stroke20 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 MBLC40X20SCA
The AirTAC MBLC40X20SCA is a double-acting aluminum mini cylinder featuring a 40 mm bore and a 20 mm stroke. It integrates a screw-adjustable pneumatic air cushion at both ends, allowing you to tune end-of-stroke deceleration for fast or heavy-moving loads, thereby minimizing impact and vibration. Delivering 628 N of push force at 0.5 MPa, this compact actuator is built around a riveted rolling-packed aluminum barrel for lightweight durability rather than a bulky rebuildable tie-rod design.
This specific SKU includes a CA pivot clevis back cover that swings on a pin to accommodate arcing angular loads, making it distinct from rigid flat-end mounts. It also carries the -S code, meaning a built-in magnet is fitted for use with AirTAC CMSG, DMSG, and EMSG sensor switches to detect rod position. The Ø16 mm carbon-steel rod features 20 µm hard-chrome plating, and the heterogeneous two-way grease-retaining piston seal ensures consistent lubrication across its 30-800 mm/s speed range.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X20SCA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X20SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 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 MBLC40X20SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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 MBLC40X20SCA Is Used
Textile Loom Let-Off
Provides 628 N of push force to tension warp beams in textile looms, using the 20 mm stroke for rapid, repeatable micro-adjustments while the cushion absorbs the sudden end-of-stroke shock from high-frequency cycling.
Packaging Diverter Arm
Actuates a sorting arm on a high-speed packaging conveyor to deflect cartons, relying on the CA pivot clevis to handle the angular load and the tunable cushion to prevent end-cap damage during fast 20 mm strokes.
Bottle Capper Press
Presses caps onto beverage bottles in a rotary filling line, using the compact riveted aluminum body to fit tight machine frames while the CMSG reed sensor confirms the short 20 mm retraction for timing control.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X20SCA the Right Cylinder?
When sizing this actuator, stepping down to the 32 mm bore reduces your push force to 402 N at 0.5 MPa, whereas stepping up to the 50 mm bore increases it to 981 N. Choose this MBLC variant over the base MBL when your application runs at high speeds or high cycle frequencies, as the fixed rubber bumper on the MBL cannot adequately absorb heavier kinetic energy. Note that the adjustable air cushion only decelerates the piston near the stroke ends; it is not a brake or load lock. If you need to hold position without live air pressure, install an external rod lock or pilot-operated check valve. This replacement match features a 40 mm bore, 20 mm stroke, G1/4 port, PT threaded connection, CA pivot back cover, and a 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 MBLC40X20SCA FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push increases to 880 N. The theoretical maximum capacity is 128 kgf at 1.0 MPa operating pressure.
The MBLC40X20SCA features a screw-tunable needle at both ends that traps a pocket of exhaust air to smoothly decelerate the piston near the stroke ends. You choose this over the base MBL fixed rubber bumper when cycling faster or moving heavier masses, as it allows you to dial in the exact deceleration rate to protect the end covers from impact wear.
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