
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X500SU 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.
The AirTAC MBLC20X500SU is a double-acting aluminum mini cylinder engineered for compact, extended-trroke automation. Generating 157 N of push force and 132 N of pull force at 0.5 MPa, it integrates an adjustable air cushion at both stroke ends. This screw-tunable pneumatic cushion decelerates the piston smoothly near the limits, absorbing kinetic energy to prevent end-cover impact on long, fast moves. It is a deceleration device, not a load lock or brake.
This 500 mm stroke variant operates at speeds from 30 to 800 mm/s and features a built-in magnet for CMSG, DMSG, or EMSG sensor switches. The riveted rolling-packed aluminum barrel keeps the body light and tight for cramped spaces, while the Ø8 mm carbon-steel rod features 20 µm hard-chrome plating to resist wear. The heterogeneous two-way grease-retaining piston seal maintains lubrication, and the U flat-end back cover provides a rigid, default rear mounting face.
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X500SU |
|---|---|
| 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.
| 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.
| 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).
Decelerates a 500 mm shuttle stroke carrying bare PCBs between pick-and-place heads, using the tunable cushion to stop the 157 N thrust gently without jarring delicate solder joints.
Traverses a yarn guide carriage across a 500 mm loom width, relying on the riveted aluminum barrel and adjustable end cushions to handle high-frequency cycling quietly.
Pushes lightweight blister packs 500 mm into a cartoning station, where the built-in DMSG sensor confirms the full extend position and the cushion prevents tray tipping.
At a 500 mm stroke, the Ø8 mm rod has minimal side-load tolerance; an external guide, an SDB pivot bracket, or a double-rod MBLD type is strongly recommended to prevent rod bending. If you need less reach, the 25 mm bore neighbour offers 245 N push at 0.5 MPa for heavier loads, while stepping down is not an option as this is the smallest available size. Because this SKU lacks a position-holding lock, the rod will drift when air is exhausted or the valve centers; use an external rod lock for failsafe gripping. This U flat-end, PT-threaded configuration with an S magnet is a direct drop-in replacement for any 20 mm bore, 500 mm stroke cylinder with a rigid rear mount and reed/electronic sensor tracking.
Quick checklist
At 0.5 MPa, this 20 mm bore cylinder provides 157 N push and 132 N pull. At 0.7 MPa, it provides 220 N push. The theoretical maximum force is 32 kgf at 1.0 MPa.
A screw-tunable needle at each end traps exhaust air to decelerate the piston smoothly over the final millimeters of stroke. You tune it to match the load and speed, cutting impact noise and vibration—unlike a fixed rubber bumper, it offers controlled energy absorption, but it will not hold a load in place if air is lost.
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