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Old Nov 13, 2012, 04:17 AM
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Hong Kong, New Territories
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RC OMG's Servo

Specification of Brushless Servos

High voltage 15kg.cm brushless Digital servos
Item No. :HDT065150B
Modulation : Digital
Weight : 65 g (2.29oz)
Dimensions: 40 x 20 x 38mm (1.57 x 0.79 x 1.50in)
Gear Type: Titanium
Motor Type: Brushless
Rotation: Dual Bearings
Stall Torque: @6V: 14 kg-cm (194 oz-in) @7.4V: 15 kg-cm (208 oz-in)"
Speed: @6V: 0.08sec/60 @7.4V: 0.06 sec/60

High voltage 20kg brushless Digital servos
Item No. :HDT065200B
Modulation : Digital
Weight : 65 g (2.29oz)
Dimensions: 40 x 20 x 38mm (1.57 x 0.79 x 1.50in)
Gear Type: Titanium
Motor Type: Brushless
Rotation: Dual Bearings
Stall Torque: @6V: 18 kg-cm (250 oz-in) @7.4V: 20 kg-cm (278 oz-in)
Speed: @6V:0.09sec/60 @7.4V: 0.08 sec/60

Low voltage 7kg brushless Digital servos
Item No. :LDT062070B
Modulation : Digital
Weight : 62g (2.19oz)
Dimensions: 40.2 x 20.1 x 38.9mm (1.58 x 0.79 x 1.53 in)
Gear Type: Titanium
Motor Type: Brushless
Rotation: Dual Bearings
Stall Torque: @4.8V: 5 kg-cm (69 oz-in) @6V: 7 kg-cm (97 oz-in)
Speed: @4.8V: 0.06sec/60 @ 6V: 0.05sec/60

Low voltage 15kg brushless Digital servos
Item No. :LDT062150B
Modulation : Digital
Weight : 62g (2.19oz)
Dimensions: 40.2 x 20.1 x 38.9mm (1.58 x 0.79 x 1.53 in)
Gear Type: Titanium
Motor Type: Brushless
Rotation: Dual Bearings
Stall Torque: @4.8V: 14 kg-cm (194oz-in) @6V: 15 kg-cm (208 oz-in)
Speed: @4.8V: 0.08sec/60 @ 6V: 0.07sec/60

Low voltage 20kg brushless Digital servos
Item No. :LDT062200B
Modulation : Digital
Weight : 62g (2.19oz)
Dimensions: 40.2 x 20.1 x 38.9mm (1.58 x 0.79 x 1.53 in)
Gear Type: Titanium
Motor Type: Brushless
Rotation: Dual Bearings
Stall Torque: @4.8V: 18 kg-cm (250 oz-in) @6V: 20 kg-cm (278 oz-in)@
Speed: @4.8V: 0.09sec/60 @ 6V: 0.07sec/60
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Old Nov 13, 2012, 04:28 AM
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Hong Kong, New Territories
Joined Aug 2012
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DigitalTitanium Gear brushless servos For 500 Heli Rotor
Item No. :LDT025025C
Modulation : Digital
Weight : 25g (0.88oz)
Dimensions: 36 x 15.2 x 28.8mm (1.42 x 0.60 x 1.23in)
Gear Type: Titanium
Motor Type: Coreless
Rotation: Dual Bearings
Stall Torque: @4.8V: 2.2kg-cm (31 oz-in) @6V: 2.5kg-cm (36 oz-in)
Speed: @4.8V: 0.14sec/60 @ 6V: 0.12sec/60

DigitalTitanium Gear brushless servos For 500 Heli Tail
Item No. :LDT025022C
Modulation : Digital
Weight : 25g (0.88oz)
Dimensions: 36 x 15.2 x 28.8mm (1.42 x 0.60 x 1.23in)
Gear Type: Titanium
Motor Type: Coreless
Rotation: Dual Bearings
Stall Torque: @4.8V: 2 kg-cm (28 oz-in) @6V: 2.2kg-cm (32 oz-in)
Speed: @4.8V: 0.09sec/60 @ 6V: 0.07sec/60

DigitalTitanium Gear brushless servos For 450 Heli Tail
Item No. :LDT013012C
Modulation : Digital
Weight : 13g(0.36oz)
Dimensions: 22.9 x 12 x 25.4 mm (0.90 x 0.47 x 1.00 in)
Gear Type: Titanium
Motor Type: Coreless
Rotation: Dual Bearings
Stall Torque: @4.8V: 1kg-cm (14 oz-in) @6V: 1.2kg-cm (17 oz-in)
Speed: @4.8V: 0.10sec/60 @ 6V: 0.08sec/60


DigitalTitanium Gear brushless servos For 450 Heli Rotor
Item No. :LDT013015C
Modulation : Digital
Weight : 13g(0.36oz)
Dimensions: 22.9 x 12 x 25.4 mm (0.90 x 0.47 x 1.00 in)
Gear Type: Titanium
Motor Type: Coreless
Rotation: Dual Bearings
Stall Torque: @ 1.2 kg-cm (17oz-in) @6V: 1.5kg-cm (21 oz-in)
Speed: @4.8V: 0.12sec/60 @ 6V: 0.10sec/60
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Old Nov 13, 2012, 04:30 AM
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Wish all R/C Hobbiest can enjoy RC OMG's Servo.
For more information, you can contact Tony via email: sales@rcomg.net
Its website is :www.rcomg.net
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Old Nov 14, 2012, 02:18 AM
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Now it was on the HUSY 1/6 Dragger.
OMG Servo (0 min 43 sec)
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Old Nov 14, 2012, 02:20 AM
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The Centering test of Low voltage Brushless Servo.
OMG brushless test (0 min 39 sec)
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Old Nov 16, 2012, 07:53 PM
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OMG SERVO REVIEW

After receiving some sample servos from OMG company of China, HDT064200C, and LDT062200B, coreless and brushless respectively, I unpackaged them and what I found were very nice , well engineered servos.

They both have aluminum center case anodized in green for better cooling, both have TG (titanium gears) for long lasting without slop.

The brushless servo example I received is of the low voltage variety, meaning 5to 6 volts, while the coreless servo is of the high voltage , 6 to 7.2 volts.




Both servos have 20 kg of torque and the speed is .18s/60 degree for the coreless and .07s/60 degrees for the brushless.

Now for the test.

First, the coreless “HDT064200C”, was set up for centering precision, and speed, on lipo battery.
The centering test showed repeated precision, to be as good as any I used or tested.
As for speed, it is as fast as claimed, but what I was amazed at, was the response time from the transmitter , again better then most I have seen.

Now for the Brushless “LDT062200B”, using lower voltage, of 6 volts .
The speed and centering is absolutely first class. But one thing I did notice, the brushless was much more quiet then the coreless, although the coreless was well within the noise level of other digital servos, and a bit more quiet then many.

For the not so good part:
The only thing I didn’t like was the servo wheels included , they are OK lower class servos, but I believe better servo arms should accompany these first class servos.
With this being said, most people using these servos will most likely go with after market arms…

I am now building a 55% Scale Pitts S2A and will be using these servos for controls…


OMG servo centering test (1 min 10 sec)
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Old Nov 18, 2012, 07:28 AM
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Thanks aerografixs!
Wait for your phicture on airplanes!
Wish you could enjoy the flight!
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Old Nov 18, 2012, 07:32 AM
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Some more photo of Digital Coreless Servos!
Wish you can enjoy it.
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Old Nov 18, 2012, 09:29 AM
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here is one servo installed on the aileron of my 55% Pitts
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Old Nov 18, 2012, 07:07 PM
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That is cool!
Roger, Your 55% pitts is great.
Wish you it could fly well with our servos.
Best regards
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Old Nov 19, 2012, 05:40 PM
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I'm really impressed in the best way with this OMG servos.

Just unpack the package, I came to my computer and made a expanded scale of degrees in Rhino, to see where they stood these servos OMG. And really surprised me as I have a JR 8611 is not as accurate as these OMG. Always return to ZERO!!

Here are some video testing the accuracy and soon I will have to do a test flight with a plane.

Soon I'll make the spanish video version.

Greetings.


OMG HDT056100C Servos precision test (2 min 52 sec)
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Old Nov 19, 2012, 07:45 PM
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Now more picture on German Friends Whelhem HUSY's beast!
Wish you could enjoy!
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Old Nov 20, 2012, 01:00 AM
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Thanks for Wilhelm Husemeyer's test review.
It pit that it is JPG format.
I will ask him to send me the PDF format!
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Old Nov 20, 2012, 03:38 AM
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Wilhelm Husemeyer's test review in PDF format!
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Old Nov 20, 2012, 06:25 AM
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Quote:
Originally Posted by omgsales View Post
Wilhelm Husemeyer's test review in PDF format!
here is the translation

We were asked for a review of
To write OMG servos.
The contact to OMG is very good and the delivery of the servos is provided to us was
except for neatly and quickly.
The servos make a neat and very stable
Impression. Unfortunately, the servo arms are quite short and is also very sparingly supplied with.
The first servo installed by us:
Art. Nr. LDT050150C
Digital type
Bushing or bearing bearing
Operating voltage range 4, 8-6.0Volts DC
Storage type dual ball bearings
Speed (s / 60 @ 4.8V/6.0V) 0.18 / 0.16
Torque oz / in. (4.8V/6.0V) 194 / 208
Torque kg. / Cm. (4.8V/6.0V) 14/15
Size in inches 1.58 x 0.79 x 1.47
Size in mm 40.1 x 20.1 x 37.3
Weight 1.76 oz
Weight 50 g.
Engine of type Coreless motor
Control system + pulse width control 1500usec neutral
Required pulse 3-5 volts peak to place Wellenberg
Operating temperature range (o F) 14 - 122
Operating temperature range (℃)-10 - 50
No-load current of 5mA
No. load operating current (6.0V/7.4V) 110mA
Install current (6.0V/7.4V) 2800m / 3000mah
Dead zone width 2μs
Potentiometer type rotating (max. 220 )
Connectors cable length 11.8 in. / 300 mm.
Connection wire gauge AWG 25
Connection type JR
Gearbox type titanium gears
Wave 6 mm, 25T
To test this servo, we built
"THE ROCKET"
OMG Servo (0 min 43 sec)

This is a Hawaiian dragster in the scale 1/6
The installed servo works here very carefully. The long Anlenkweg no problem preparing the servo.
It is very sensitive, and very accurately. Unfortunately, we have not included here
Servo arm fitted by the size of the model because the wheelbase is 55 cm.
Our final opinion:
A high-quality product which represents an asset on the market.
SO LONG HUSY
I'm not old, I'm a classic
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