Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X500CA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X500CA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 500mm 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
- Stroke500 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 MBLC20X500CA
The AirTAC MBLC20X500CA is a compact double-acting mini cylinder engineered with a screw-adjustable pneumatic air cushion at both ends. Delivering 157 N push and 132 N pull force at 0.5 MPa, it uses an 8 mm carbon-steel rod with 20 µm hard-chrome plating to resist corrosion and wear. The 500 mm stroke is the maximum standard length for this 20 mm bore, making it ideal for long-travel tasks where space is tight.
Unlike the base MBL series which relies on a fixed rubber bumper, this MBLC variant lets you tune end-of-stroke deceleration to match heavier or faster loads, effectively minimizing impact shock, vibration, and noise. The riveted rolling-packed aluminum barrel keeps the body lightweight and compact rather than relying on bulky tie-rods. The heterogeneous two-way grease-retaining piston seal ensures consistent lubrication across the 30-800 mm/s speed range, while the CA pivot/clevis back cover accommodates arcing angular movements. Note that this specific SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG position sensing without modification.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X500CA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X500CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 500 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 MBLC20X500CA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×500 | 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 MBLC20X500CA Is Used
Textile Loom Thread Guide
Shifts a thread guide across a 500 mm path on a weaving loom; the CA clevis pivots to absorb slight misalignment while the air cushion prevents end-cap slamming during rapid 30-800 mm/s traverses.
Packaging Diverter Arm
Actuates a 500 mm swing arm to sort small cartons on a packaging line, using the 157 N push force to overcome hinge friction while the tunable cushion halts the long lever smoothly.
PCB Shuttle Conveyor
Moves populated PCB panels into an inspection station over a 500 mm stroke, where the compact riveted aluminum barrel saves space and the cushion protects fragile solder joints from sudden stops.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X500CA the Right Cylinder?
With a 500 mm stroke on a 20 mm bore, this cylinder operates at the extreme limit of standard rod overhang, making the Ø8 mm rod highly susceptible to bending under side loads. For this length, you must use an external guide rail, rely on the CA pivot back cover to self-align, or switch to an MBLD double-rod cylinder to prevent premature seal failure. The adjustable air cushion is critical here to brake the piston before it strikes the end covers at high velocities.
If you need to step down in force, the next smaller option is not available in this mini series, but if you require greater thrust, the 25 mm bore provides 245 N push at 0.5 MPa. Remember that a plain double-acting cylinder does not hold position when air is lost or the valve centers; the air cushion only decelerates motion near the ends and acts as no lock or brake. For exact drop-in replacement matching, this SKU features a 20 mm bore, 500 mm stroke, G1/8 port, PT thread form, CA pivot back cover, and no magnet (no -S).
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 MBLC20X500CA FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N push and 132 N pull force. At 0.7 MPa, it delivers 220 N push, with a maximum theoretical output of 32 kgf at 1.0 MPa. It features a G1/8 port, an 8 mm rod with an M8x1.25 rod-end thread, and a default PT (tapered) port thread form.
The MBLC20X500CA uses a screw-adjustable pneumatic air cushion at both ends rather than a fixed rubber bumper, allowing you to tune the deceleration to protect the end covers on long, fast 500 mm strokes. This cushion only decelerates the piston near the stroke ends; it is not a brake or load lock, and the cylinder will drift if air is lost or the valve centers. Additionally, because this SKU lacks the -S magnet suffix, it cannot be fitted with CMSG, DMSG, or EMSG sensor switches for position detection.
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