SMAC is an all-electric solution that can be used as a "drop-in" replacement for air actuators.
High speed, compact and price-competitive cylinder actuators that provide an alternative to pneumatic cylinders with superior performance. SMAC electric cylinders offer life cycle well beyond 100 million cycles and the ability to repeat a move within one millisecond with no stiction. The conventional cylinder actuator shape and multiple mounting points allow the electric cylinders to be directly retrofitted in most cases.
SMAC CBL vs Pneumatics Performance
|Speed||> 2,500 CPM||<1,200 CPM (higher rates = reduced Durability)||> 1.5x throughput increase|
|Durability||> 200 Million Cycles||10-20 Million Cycles||CPM = 250
CB = 6,000 hrs. MTBF
Air = 1,200 hrs. MTBF
|Configurability||Speed, Positions and Force||None, limited to mechanical adjustment||Quick & Easy to set up/change|
|Energy Consumption||Low (24/48v) voltage/amps (1.7A peak)||High cost of Air supply + Electricity for control||>30x lower energy consumption than Air
8 HP of electricity to produce 1 HP of air
|Noise Level||< 55 dB||Typically > 85 some > 110 dB||Achieves ‘Silent’ Industrial classification|
|Repeatability||+/- 1 ms cycle time variance||20 ms cycle time variance||Enables increased throughput & synchronisation of process|
|Validation||Encoder feedback & control of all movement parameters available||Sensors/Switches cannot control the movement, only set fixed limits||Less destructive movements
No separate sensors
|In-line Changeover||Reconfigure for different movements in seconds||Change unit or adjust for small variations, in minutes/hours||Reduce change over time and cost|
|Cost of Ownership||One time buy, no maintenance/adjustment||Regular replacement , adjustment/repair, compressor and control valves, tubing etc||Air = Between 5-7x cost of CB moving coils solution|
|Position Verification||Interface visually displays rod’s exact position for setup and evaluation||Location of rod un unknown and must be visually debugged||Faster setup and more precise motion profiling|
Reduce Noise Pollution
In an internal study, SMAC Moving Coil Actuators showed evidence of a 50% reduction in decibels generated by moving coil actuators versus traditional pneumatic actuators.
People who work in a traditional production environment, often accept noise pollution as a necessary occupational hazard. However, evolving moving coil technology is making strides in noise control/reduction. Pneumatics range from 100-120 dBA. SMAC's team averaged this to 110 dBA for the study. (As a point of reference, shouting directly into someone’s ear is rated at 110 dBA.) By comparison, SMAC Moving Coil Actuators came in at 40-60 dBA, depending on conditions, averaging at 50 dBA, literally less than half of the noise produced by pneumatics. This level of noise is comparable to a quiet library or office environment.
While there are methods to muffle pneumatic actuators, few will reduce noise generated to the 40-60 dBA range measured in SMAC Moving Coil Actuators.
The low noise generated by SMAC actuators is attributed to its airless operation. There is no compressed air generation required with SMAC. At the heart of all SMAC actuators is the moving coil, also described as a voice coil actuator. The essential principle is the same as a permanent magnet loudspeaker. The voice coil sits in a strong magnetic field, and by passing a current through the coil a force is generated in either direction.
SMAC and Pneumatics in Switch Testing Application