HELLO

ACCETTABLE RPM is between 9000 to 12000 NO LOAD, some people use 14000 or more for DIRECT DRIVE ROTARY, i think is really a lot, becouse suppose the COILS MACHINES run maybe at 90 to 120 HZ with needles and rubber band, LINER or SHADING depend of course, have one procedure to compare RPM of ROTARY to HZ of COILS machines, i don remenber now, need ask to my fahter , is an electronic technic, him know

DAN, about NICHIBO, is almost same as MABUCHI or other brand of this kind of motor made in TAIWAN, i sty tesT now, is good when they are big size and have more than 5 WATT,
try NICHIBO MS3N-2880, 12000 RPM, operatin range 6-12 VOLT, 5.90 WATT, duty cycle 64%, DON WORRY , FOR ROTARY MACHINES U NEVER GONNA BURN, survive same as MABUCHI, make the test yourself and see

all this kind of motor MABUCHI, NICHICO, CITIZEN, and many more made in ASIA, the factory say they have 5000 HOURS of live, all the same, u can ask , they have different DUTY CYCLE, mean the % when the motor work and when need stop
so immagine u use 3 hours at day, 365 day at year, the motor gonna survive about 5 years, is good

sorry my english not so good, i try to explain better, hope all u understand, the DUTY CYCLE or MAXIMUM EFFICIENCY is espress on %, so mean that this motors cannot run continuosly, have some time for work and some time for stop , i mean, that duty cyle is 50% on the motor, mean that the motor run example 2 hours continuosly and after need stop for same 2 hors

the big difference between expencive DC MOTORS same as MAXON, FAULHABER, PORTESCAP, NAMIKI, and some more , respect normal massive production DC MOTORS same as MABUCHI, NICHIBO, CITIZEN , and many other brand is exatly the duty CYCLE, mean, the quality of the component inside are more strong on the quality motor, so they have more DUTY CYCLE, the MAXON i use on my rotary have 84 % of this, is much more than any other motor, mean, is possible run much more longer and stop much less time respect simple motor, without problem of burn, this is not something im invented, is the TECHNICAL SPECIFICATIONS, u go to the website and ceck

but is also true that ROTARY TATTOO MACHINE don need run constantly, always have the stop time, so the motors always run and stop, run and stop, u never gonna arrive to break the DUTY CYCLE of them,

also, more power have the motor, less is strees, becouse u use maybe just half of this power, so the motor work more easy and survive more

almost any DC motor with around 5 watt or more is possible use good on ROTARY MACHINES, that u have ROTARY machines direct, without the STY UP SRING, u can use very fine a 2-2.5 WATT motor, no problem

the big problem is the size of DC MOTOR on the different brand and quality
example the MAXON MOTOR used on STYGMA or SWASHDRIVE or also now on the new SPEKTRA is the model 216000, very great motor, diameter 16 mm, lenght 25.4 mm, 12 VOLT, 4.5 watt power, 11200 RPM, 75% DUTY, DON EXIST IN THE MARKET ANY MOTOR LIKE THIS, SMALL WITH THAT POWER, for have 4 or 5 watt on MABUCHI u need have 25 mm diameters or more and around 30 or 32 mm lenght, this why MAXON so expencive or FAULHABER

the MAXON i use on my rotary is the 110123, 15 VOLT, 10300 RPM, 5 WATT, 84% DUTY, 22mm diameter, 32 mm lenght , im very happy with him, is strong motor, i like, maybe little bit expencive but im happy

im very surprise now on testing MABUCHI and the model of NICHIBO, becouse they work pretty good and have the same performance of MAXON, they little bit bigger but is ok, son i gonna comeout with a new ROTARY model, much smaller and lighter than one already build, and maybe i move to MABUCHI, i wanna see, maybe i gonna use a big motor more than 6 WATT, so u have all the power u want and gonna survive a lot a alot, i gonna work a lot on the frame, much smaller and lighter possible, we see...

im already sty draw on CAD a couple of different ROTARY, maybe i gonna done more than 1 new model... i also don wanna build 500 dollar of machines, is to much expencive, i mean TATTOOS astart become to much expencive, ljust like the ELITE ARTISTS can spend 500 or more dollar for a machine, in many country the tattoos is cheap and have some great artist also, go in south america, many many good artists but the price of tattoos is not same as UAS or EUROPE,
build expencive machines sound like just wanna have rich tattoo artists than buy them, i dono maybe im wrong but i consider this point of view also,