KST MS565 HV Contactless Hall Sensors Coreless Tail Servo 6.5Kgf.cm 0.035sec
Shipping within 72 hours
*Excluding pre-order items
KST MS565 HV Contactless Hall Sensors Coreless Tail Servo 6.5Kgf.cm 0.035sec
The KST MS565 HV Contactless Hall Sensors Coreless Tail Servo is a compact 760us tail servo for 450-550 class RC helicopters. KST's MS series uses contactless magnetic Hall sensing to improve accuracy, repeatability, and reliability compared with conventional position feedback.
Verified KST data lists a DC 6.0V-8.4V voltage range, up to 6.5Kgf.cm stalling torque at 8.4V, and 0.035sec/60deg no-load speed at 8.4V. It uses a coreless DC motor, hardened steel gears, contactless position sensing, aluminum alloy case, and 2 ball bearings.
The 35.5 x 15 x 32.5mm case, 25T 6mm output spline, and about 38g weight make MS565 a strong tail-servo option for builders who want fast response with contactless feedback.
Product Images



Features
- 6.5Kgf.cm peak torque - Listed stalling torque reaches 6.5Kgf.cm at 8.4V.
- 0.035sec ultra-fast response - Listed no-load speed reaches 0.035sec/60deg at 8.4V.
- Contactless Hall sensor - KST lists contactless magnetic sensing for improved repeatability.
- 450-550 helicopter focus - KST positions it for this RC helicopter class.
- 760us/560Hz tail format - Intended for compatible tail gyro/control systems.
- Coreless DC motor - Supports smooth, fast tail output.
- Hardened steel gears - Adds durability for tail loads.
- Aluminum alloy case - Provides a rigid mini-servo housing.
- 25T 6mm output spline - Uses the listed spline for compatible horns.
- 2BB construction - Dual ball bearings support the output train.
Specifications
| Parameter | Value |
|---|---|
| Model | KST MS565 |
| Shopify SKU | KST-MS565 |
| Rated Voltage | DC 7.4V |
| Voltage Range | DC 6.0V-8.4V |
| Stalling Torque | 4.2Kgf.cm @ 6.0V; 5.5Kgf.cm @ 7.4V; 6.5Kgf.cm @ 8.4V |
| No-load Speed | 0.05sec/60deg @ 6.0V; 0.04sec/60deg @ 7.4V; 0.035sec/60deg @ 8.4V |
| Working Frequency | 760us / 560Hz |
| Output Shaft Spline | 25T, 6mm |
| Case Material | Aluminum alloy |
| Motor Type | Coreless DC motor |
| Gear Set Material | Hardened steel |
| Position Sensor | Contactless |
| Ball Bearing | 2BB |
| Case Dimensions | 35.5 x 15 x 32.5mm +/-0.2mm |
| Weight | 38g +/-10% |
| Temperature Range | -10C to +65C |
| Soft Start | Programmable |
| Programmable | Yes |
Reference Documents
Application
- 450-550 class RC helicopter tail control - KST positions MS565 for compatible tail-servo applications.
- 760us gyro systems - Intended for systems that support 760us/560Hz tail-servo control.
- Contactless sensor upgrades - Useful when Hall/contactless position sensing is preferred.
- High-speed yaw response - Useful where the setup needs the listed 0.035sec/60deg response.
- HV receiver systems - Works within the listed DC 6.0V-8.4V range when powered correctly.
- Custom compact mechanisms - Can be used outside RC helicopters after verifying signal, voltage, and load.
Packing List
| Description | Quantity |
|---|---|
| KST MS565 coreless servo | 1 |
| Accessory pack | 1 |
FAQ
How does MS565 compare with DS565X?
MS565 uses contactless position sensing and lists 6.5Kgf.cm at 8.4V. DS565X uses potentiometer feedback and lists 6.0Kgf.cm at 8.4V.
Does OpenELAB list multiple Shopify variants for this product?
No. The current Shopify product is a single variant with SKU KST-MS565.
What is the maximum listed torque?
The technical specification lists 6.5Kgf.cm at 8.4V.
What is the fastest listed speed?
The fastest listed no-load speed is 0.035sec/60deg at 8.4V.
Does it use a contactless sensor?
Yes. KST lists the MS565 position sensor as contactless and describes the MS series as using magnetic Hall sensing.
What is included in the package?
KST's package section confirms one MS565 coreless servo and one accessory pack.
What spline does it use?
The technical specification lists a 25T, 6mm output shaft spline.
What should I check before installation?
Confirm the 35.5 x 15 x 32.5mm case, 25T 6mm spline, 760us/560Hz signal support, voltage range, and tail linkage clearance.
1. General Shipping Information
- We provide reliable shipping services with a tracking number for each order.
- Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
- Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
- In-stock orders are usually dispatched within 1 business day after order confirmation.
- Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
- If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.
🚀 Need Faster Shipping?
If you require expedited shipping, please contact our customer support team at info@openelab.io for a customized quote based on your destination.
2. Shipping Rates & Options
Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.
2.1 Germany Domestic Shipping
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0.00 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0.00 - €50.00 | €6.95 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
€50.00 - €100.00 | €2.00 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
Over €100.00 | Free | 1-3 Business Days |
2.2 Selected EU Countries / Regions
Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| FedEx Regional Economy | €0.00 - €100.00 | €7.95 | 3-5 Business Days |
| FedEx Regional Economy | Over €100.00 | Free | 3-5 Business Days |
EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0.00 - €45.00 | €4.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0.00 - €45.00 | €16.95 | 1-4 Business Days | |
| USPS Priority Mail | Over €45.00 | €14.95 | 1-4 Business Days | |
|
Non-Continental U.S. (AK, HI, PR, etc.) |
USPS Ground Advantage | €0.00 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.
2.4 International Destinations Outside the EU
For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:
| Order Amount | Shipping Cost |
|---|---|
| €0.00 - €300.00 | €19.95 |
| Over €300.00 | Free |
For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.
3. Warehouses & Fulfillment
Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.
3.1 Munich Warehouse
For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.
3.2 Arlington Warehouse
For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.
3.3 Shenzhen Warehouse
For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
4. Inventory, Pre-orders & Split Shipments
- Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
- Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
- Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.
5. Customs, Taxes & Delivery Issues
5.1 Customs and Taxes
For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.
5.2 Damaged, Delayed, or Lost Parcels
Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.
If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@openelab.io. We will assist you in checking the shipment status with the courier.
5.3 Incorrect Address or Failed Delivery
If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.
6. VAT
For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.






