Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X20SCA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X20SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 20mm 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
- Stroke20 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 MBLC20X20SCA
The AirTAC MBLC20X20SCA is a compact double-acting aluminum mini cylinder engineered for short 20mm strokes, delivering 157 N of push force and 132 N of pull force at 0.5 MPa. Its defining feature over the base MBL is a screw-adjustable pneumatic cushion at both ends. By tuning the needle, you decelerate the piston smoothly near stroke limits, cutting end-cover impact and noise on fast, repetitive small-part moves. It is a deceleration device, not a load lock.
This SKU includes a CA pivot/clevis back cover that swings on a pin to accommodate arcing loads, paired with a built-in magnet (-S) for CMSG, DMSG, or EMSG sensor switches. The riveted rolling-packed aluminum barrel keeps the frame light for tight spaces, while the Ø8 mm carbon-steel rod features 20 µm hard-chrome plating to resist wear. A heterogeneous two-way grease-retaining piston seal ensures consistent lubrication across the 30-800 mm/s speed range.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X20SCA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X20SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 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 MBLC20X20SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | 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 MBLC20X20SCA Is Used
PCB Pick & Place
Ideal for electronics assembly actuators where the 20mm stroke and 157 N force swiftly position small pick heads, relying on the adjustable cushion to prevent jarring stops that could dislodge tiny components.
Connector Insertion
Provides the precise linear push needed to seat ribbon cable connectors, using the CA clevis to absorb slight angular misalignment during the 20mm downward drive.
Pharma Vial Diverting
Drives a lightweight routing flap in packaging lines; the CMSG reed switch tracks the 20mm stroke position, while the cushion silently decelerates the pivot motion.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X20SCA the Right Cylinder?
Select this 20mm bore when an application demands 157 N of thrust at 0.5 MPa within a very tight 20mm stroke envelope. If you need less force, the series does not offer a smaller bore, so you would step up to the 25mm bore (245 N push at 0.5 MPa) for heavier loads. Choose this MBLC over the fixed rubber bumper of the standard MBL when cycling speeds are high enough that impact shock would prematurely wear the end covers. The PT tapered port thread mates with standard pneumatic fittings. Note that a plain double-acting cylinder does not hold position if air pressure drops; use an external rod lock for fail-safe holding. The replacement match is bore 20, stroke 20, port G1/8, rod thread M8x1.25, PT thread, CA back cover, and magnet included.
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 MBLC20X20SCA FAQ
At 0.5 MPa, this 20mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push increases to 220 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
Unlike the fixed rubber bumper in the base MBL, the MBLC features a screw-tunable needle at both ends. You adjust it to trap a pocket of exhaust air, decelerating the piston smoothly before it strikes the end cover. This reduces impact noise and vibration on fast cycles, but it does not lock or hold the rod in place.
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