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TSL-BLDC-4820 high speed 18v brushless dc motor

High torque 18v brushless dc motor with 15000rpm rated speed

factory wholesale 18v brushless dc motor

18v brushless dc motor with speed controller

Ø44 x 58mm Inrunner BLDC Motor | TSL-BLDC-4820

Price range: $28.00 through $90.00

◆ Basic Info

Brand: TSL
Origin: China
Motor Model: TSL-BLDC-4820
Motor Type: Inrunner Brushless DC Motor
Rated Voltage: 18V / 24V / 36V
No Load Current: ≤2.0A
No Load Speed: 18,000±5%rpm
# More Specifications
# Outline Drawing
# Downloads

◆ Typical Applications: 6/8″ Chain Saws

Samples Pricing

Specification	Quantity	Unit Price	Savings
24V / 36V Motor Only	1 – 4	USD 28.00	—
24V / 36V	5 – 9	USD 26.60	↓ 5%
24V / 36V	10 – 24	USD 24.36	↓ 13%
24V / 36V	25+	USD 21.84	↓ 22%
4820 With Driver	1 – 4	USD 90.00	—
4820 + Driver	5 – 9	USD 85.50	↓ 5%
4820 + Driver	10 – 24	USD 76.50	↓ 15%
4820 + Driver	25+	USD 68.40	↓ 24%

📞 Contact us for bulk production pricing

For higher (production) volumes, please Request a Quote. We response within 24h.

✈️ Global Shipping: free express shipping on orders over $150

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| 18V Brushless DC Motor Specifications

⚡ Engineered for Heavy-Duty 6/8″ Chain Saws

This premium 18v brushless dc motor delivers the massive torque and aggressive cutting power required to drive 6-inch and 8-inch mini electric chain saws through dense wood smoothly.

🔋 Optimized 18V Battery Efficiency & Thermal Management

Tailored for standard 18V wireless tools, its low dynamic resistance (0.187 Ohms) ensures minimal heat buildup and maximum runtime under continuous heavy loads.

Item	Specification
Ambient Temperature	25-30 °C
Test Voltage	18.00 Volts
Circuit Resistance	0.092 Ohms
At No Load
Speed	18100 RPM
Current	1.400 Amp
At Stall (Extrapolated)
Torque	1041.601 m-Nm
Current	96.171 Amp
At Maximum Efficiency
Efficiency	90.81 %
Torque	112.143 m-Nm
Speed	16151 RPM
Current	11.603 Amp
Output Power	189.674 Watts
At Maximum Power
Torque	520.801 m-Nm
Speed	9050 RPM
Current	48.785 Amp
Output Power	493.570 Watts
Calculation at Torque Level: 200.000 m-Nm
Speed	14624.6 RPM
Current	19.597 Amp
Efficiency	86.83 %
Output Power	306.297 Watts

Note:We are the original factory. For OEM/ODM cooperation, the parameters can be customized based on customer needs. The models listed above are our standard specifications.

| 18V Electric Chainsaw Motor TSL-BLDC-4820 Mechanical Drawing

Unless otherwise stated, all dimensions are in millimeters.

Technical dimension drawing of 18v brushless dc motor 53mm

| 18V Brushless DC Motor TSL-BLDC-4820 Performance Curve

The performance curves are the actual values measured by us.

TSL-BLDC-4820 18v brushless dc motor performance curves — 18v brushless dc motor tsl bldc 4820 performance curve

| 18V Brushless DC Motor TSL-BLDC-4820 Driver Specifications

18v brushless dc motor tsl bldc 4820 with controller

🧠 Seamless 20A Intelligent Drive Calibration The paired controller features a 20A rated current and a 15,000 RPM speed loop, unleashing an incredible peak power of 493 Watts for rapid wood cutting.

🛡️ Full-Spectrum Overload & Tool Protection Pre-configured with a 45A current limit, quick brake (<180 MS), and dual MOS/Battery thermal sensors, it provides absolute anti-burnout safety.

Item	Specification
Rated Voltage	18 V
Rated Current	20 A
Stepless Speed Regulation	None
Gear Speed Regulation	None (x gears)
Speed Limit	15000±5% RPM
Forward/Reverse Control	None
Soft Start Time	Less than 500 MS
Brake Time	Less than 180 MS
Communication Function	None
Voltage Protection Parameters
Overvoltage Protection Value	31±1 V
Overvoltage Protection Delay	50±10 MS
Standby Undervoltage Protection Value	14±0.5 V
Standby Undervoltage Protection Delay	50±10 MS
Working Undervoltage Protection Value	28.0±0.5 V
Working Undervoltage Protection Delay	1000±150 MS
Undervoltage Recovery Voltage Value	31.0±0.5 V
Undervoltage Recovery Delay	50±10 MS
Overload Protection Parameters
Overload Protection Current	45 A
Current Limiting Protection Value	45±3 A
Short Circuit Protection Value	>150 A
Overload Protection Delay	50±10 MS
Stall Protection Delay	50±10 MS
Motor Low-Speed Operation Protection Parameters (All 3 conditions must be met simultaneously)
Speed Value	Less than 3000 RPM
Current Value	Greater than 15±3 A
Duration	500±50 MS
MOSFET Temperature Parameters (B3435)
Overtemperature Protection Value	90±5 °C
Overtemperature Protection Recovery Value	80±5 °C
Overtemperature Protection Delay	500±50 MS
Overtemperature Protection Recovery Delay	500±50 MS
Battery Pack Temperature Parameters (B3950)
Overtemperature Protection Value	N/A °C
Overtemperature Protection Delay	500±50 MS
Overtemperature Protection Recovery Delay	500±50 MS

| 18V Brushless DC Motor TSL-BLDC-4820 Driver Mechanical Drawing

Technical specification of driver for 18v brushless dc motor

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| Payment & Shipping

To ensure a smooth purchasing experience, we partner with world-class couriers and trusted payment gateways. Below you will find our standardized policies designed to guarantee secure payments and rapid global delivery for your motor components.

Payment Terms

1.T/T (Bank Transfer) - Default & Required: Our standard payment method for all orders (samples, small batches, and bulk wholesale alike). Upon checkout or order confirmation, our secure bank-to-bank wire instructions (including SWIFT code) will be automatically provided.

2.PayPal: Available strictly as an alternative backup option for immediate online sample checkout under special circumstances. (Please contact our sales team if you require a PayPal invoice).

Shipping & Logistics Policy

Transit Time: Shipments are primarily routed through DHL or FedEx express networks. While the estimated transit time for major destinations is typically 3 to 5 business days, the actual delivery window varies depending on the destination country, region, specific shipping terms (Incoterms), and local customs clearance procedures.
Order Processing: Shipments are executed within 3 to 5 business days once your payment has been successfully cleared and verified.
Logistics Inquiry: In the event of an unexpected delivery delay, please contact us promptly. Our service team will investigate and respond within 24 hours. In rare cases where our email is filtered, please review your spam folder. We remain dedicated to ensuring your order arrives safely.
Shipping Address: Buyers are strictly required to verify that the registered shipping address is complete and accurate prior to final payment submission.

| TSL MOTOR Shop Online Sample Request

Whether you need a standard off-the-shelf component for immediate testing or a highly customized motor tailored to your unique application, we have you covered. Choose between our fast online checkout for rapid sampling or contact our engineering team for bespoke technical support.

🛒 1.Buy Samples & Small Batches Online

Need a quick sample or small batch to test your prototype? You can order directly right here.

In Stock & Ready to Ship: Standard specifications are pre-packed and ready for rapid dispatch.
Secure Checkout: Complete your purchase smoothly with our secure payment gateway.
Fast Global Delivery: Ideal for engineers, makers, and agile manufacturing projects.

🛠️2. Custom Sample Request & Engineering Support

Need custom shaft dimensions, a different voltage rating, or integrated encoders? Our engineering team is here to tailor the motor to your exact specifications.

Customizable Features: Output shafts, winding configurations, lead wires, and connectors can be fully customized.
Flexible Testing: Get the precise performance curves (RPM, torque, efficiency) required for your application.
Direct Expert Communication: Submit your technical drawings or requirements, and we will reply within 24 hours.

| Notice Before Ordering

To ensure a seamless sourcing experience and continuous support for your projects, please review our standard ordering guidelines below:

1.Inventory & Production Confirmation:

As an original manufacturer with an extensive catalog, our real-time stock levels may fluctuate. Please contact us immediately after placing your order to verify stock availability. Please kindly understand that as a volume factory, we are unable to pause active production lines to manufacture a single, non-stock motor component.

2.Professional Selection Support:

For Retail & Sample Selection: If you are unsure which motor model best fits your prototype, please reach out to support@micronixmotor.com for engineering guidance.
For Volume & Bulk Inquiries: For commercial scaling, customized batch specifications, or wholesale pricing, please submit your requirements directly to inquiry@micronixmotor.com.