HXT900, one of the most famous and the best value micro servos available. Used by tens of thousands of hobbyiests world wide. The HXT900 is the #1 trusted low cost 9g servo.
Size : 21x12x22 mm / 0.74x0.42x0.78 in Voltage : 3v ~ 6v Weight: 9g / 0.32oz Speed : 0.12 sec/60(4.8V) Torque : 1.6 kg-cm Working Temp : -30C~60C Teflon Bushing, 15cm wire, coreless motor Servo arms & screw included
WARNING These servos can be found on eBay and other asian sellers at close to this price, however be warned, they do not contain Taiwan/Japan components. HexTronik (the manufacturers of these servos) have two standards, one is for local sale, and the other is export quality with imported connectors and resin gears from Taiwan and Japan. Our HXT500 and HXT900 are export only, and not built for the domestic market. You will not find the same quality servo for less, anywhere!
I bought this servos for HK-450TT PRO V2 Flybarless 3D Torque-Tube Helicopter Kit (Align T-Rex Compat.) and one servo got a few tooth broke down, have to buy a stronger one for this heli.
I would not recommend them for this type of heli.
I resolved the issue by adjusting the flap programming with 100% down 30 up under flaps programming. If I exceed 30 up, the hum starts. When the hum was occurring, the linkages were not attached yet. So, it must have been strictly a programming induced issue. Thanks!
Has anyone measured or do you know the "average" amp draw of these? I have a bixler 2 I'm about to build. I boutat a HK 30 Amp ESC w/3amp BEC. So I was wondering if the 3amp BEC in the ESC could handle all the servos? 2 - Aileron, 2 Flaps, Rudder, Elevator, Pan/ Tilt. 8 servos total.
you will need a 6 amp bec but i would go bigger just to be safe. with a 3 amp bec you can run 5 micros pushing it and 4 would handle just fine but since you are running that many servos you will need a 6 amp minimum
I'm new to RC and was wondering will these replace the flap servos in a 1100mm Corsair?? I can't seem to find which servo it has or the speed of it being a slow servo from what I have been reading around the forums. Thanks!
just burned up a second one of these today inflight? never had a problem with them until I started using 4s. wondering if that contributed? any one know the answer.
thanks Rc Roller
if you need to know it was the 64mm t-45 sold here I had the programming on the radio going just shy of full throw to keep it safe.
If I were you I would go with a metal gear of the same size. Cost a little more, but better than losing plane. How big is your cub?? Try to match the size of the elevator and rudder servo if not bigger! Happy flying
the super cub he is referring to is most likely the parkzone brand,which is only about 1100mm wing span...so i would say from my experience these servos should be just fine... servos usually give you signs they are going to fail during pre flight check...I use these servos in a couple of my planes and they are rock solid for me...
Victor, on a particularly bad crash w/my Super Cub (I was trying to do an outside loop and didn't have enough altitude) I ended up breaking the gears in my elevator servo. After replacing the fuselage (yes, the crash was that bad) I replace both servos w/this servo and even used these when I added ailerons. This servo works just fine for the Super Cub.
These things take a licking and keep on ticking. I put them thru the worst punishment .I have 6 grand kids and they all know how to fly thanks to HK . I have never had any problems with these servos .The kids have had there share of crashes and so have I and we keep on using them.Buy them and go out and Fly. Hope this helps
These suckers survive almost everything. I've had quite a few crashes on my planes using these servos and never had any problems. Buy these while you can because they are going to run out of stock really soon in USA warehouse.
I agree with Koo. I have been amazed by the resiliency of these servos. I have been able to keep the tail of my PA Katana Mini very light by using these on the rudder/elevator. Until I have a major blowback issue or stripped gears, I'll continue to do so and save the weight of the metal gear servos.
Are the HXT's stocked in the US warehouse the originial white gear versions?
The new black gear versions are not nearly as good as the original white HXT900. They jitter, and are not nearly as smooth or as quiet.
You can combine an HXT900 with a Hextronic MG-14 or Turnigy MG-90S) and make a metal gear HXT900 by swapping the gears and top cap from the donor servo to the HXT900. (you need the top cap because the ourput shaft on these two servos has a radial bearing)
Great to finally get these in the US warehouse, thanks HK. I've purchased 30 of these and only had one with a problem. These are great servos that I regularly use and abuse. The gears can be purchased from the international warehouse and long control arms can be found from Dubro for those foamie applications. I regularly exceed their torque, stall them, crash them, and have only replaced a couple of gear sets from abuse. I highly recommend these guys.
No comments. Reply..
Thank you HK for stocking these 900's in the USA warehouse. They are great on my hobby budget especially with the economy in the states and all. people tell me to buy name brand servos and I tell them I do... they are called Hextronik and they Rock!
No comments. Reply..
I bought this for my rc18 associated truck. The end isnt even close to matching what goes in the truck. I dont know if there is a better one for my application but there was not alot to choose from in the us warehouse. The overall size was about 1mm to 2mm bigger than the original had to modify to make it fit. Seems like a strong fairly fast servo. I just would not reccommend for the associated 18th scale.
1 comment. Reply..
HXT 900 servos are an excellent substitution for Hitec HS-55's. I, personally, don't recommend the Hextronic servos for cyclic control in a heli; but, these servos will work if no other option is available. My main use for the HXT 900's is GWS airplanes and 1/16th off-road buggies. The Hextronic servos fit, snug, so be prepared to remove material, if neccessary. Also, don't bother buying too many replacement gear sets, because the servo motors burn-out and provide plenty of extra gears to transfer, if you strip a new servo.