ZT18-4 42V DC Brushless Motor Control Switch for Cordless Power Tools
Built for Modern Battery Powered Tools
ZT18-4 BLDC brushless motor speed control switch is designed for next-generation cordless power tools and battery-powered equipment. Suitable for brushless drills, impact drivers, screwdrivers, grinding tools and other BLDC motor applications used by professional contractors and OEM manufacturers.
Brushless Motor Control
Precise electronic commutation for brushless DC motors. Higher efficiency and longer motor life.
Stepless Speed Regulation
Smooth PWM-based speed control with wide adjustment range.
Soft Start Function
Gradual motor acceleration reduces mechanical shock and extends gear life.
Forward/Reverse & Brake
Complete motor control in one module. Bi-directional operation with electronic braking.
ZT18-4 Specifications
ZT18-4 at a Glance
ZT18-4 Reliable 42V DC Control Switch Solution
DKLD ZT18-4 is a professional DC brushless motor control switch developed for modern cordless power tools and battery-powered equipment.
Designed for DC42V applications, ZT18-4 provides reliable electrical performance, long service life and stable operation under demanding working conditions.
With compliance to EN61058 and GB15092 standards, ZT18-4 is suitable for global OEM power tool manufacturers requiring customized DC switch solutions.
Dimensions & Electrical Circuit Diagram
ZT18-4 BLDC brushless motor speed control switch is designed for next-generation cordless power tools and battery-powered equipment. Suitable for brushless drills, impact drivers, screwdrivers, grinding tools and other BLDC motor applications used by professional contractors and OEM manufacturers.
BLDC Brushless Motor Switch Applications
ZT18-4 BLDC brushless motor speed control switch is designed for next-generation cordless power tools and battery-powered equipment. Suitable for brushless drills, impact drivers, screwdrivers, grinding tools and other BLDC motor applications used by professional contractors and OEM manufacturers.
Cordless Brushless Drill
Electronic commutation switch for brushless drill motors. Stepless speed control with signal brake for precision drilling in multiple materials.
Brushless Impact Driver
High-current BLDC speed control switch for impact drivers. Electronic reversing with soft start function for controlled fastening.
Brushless Screwdriver
Compact BLDC switch for brushless screwdrivers. Precise speed adjustment for assembly and installation tasks.
Brushless Grinding Tool
High-current BLDC switch for cordless brushless grinders. Electronic commutation with LED work light support.
Brushless Cutting Tool
Variable speed BLDC switch for cutting tools. Signal brake function for safe and precise cutting operations.
Battery Powered Equipment
Versatile BLDC switch for 36V and 40V cordless battery equipment. OEM customization for specific electrical and mechanical requirements.
Built for Global OEM Standards
Dongke Electric products are manufactured in our ISO 9001:2015 facility with UL- and TUV-certified in-house laboratories. Every unit passes four quality gates before it ships.
Four Quality Gates, One Reliable Product
Each stage is backed by documented procedures, trained personnel and calibrated instruments.
IQC
Raw materials and components are inspected on arrival. We verify material certifications, dimensional accuracy and electrical properties against our specifications.
IPQC
Automated assembly lines are checked at every station. Regular line inspections, first-article checks and SPC monitoring detect and correct deviations in real time.
FQC
Every unit is tested before shipment. Key parameters including contact resistance, insulation resistance and switching operation are verified on 100% of products.
OQC
Packed batches are re-checked before dispatch. Our team performs sampling inspections based on AQL standards, verifying packaging integrity and labeling accuracy.
Quality You Can Trust
Dongke Electric operates a dual-accredited testing laboratory (UL + TUV) — a distinction shared by only a handful of manufacturers in our industry.
Difference Between a Brushed Motor Switch and a Brushless Motor Switch
A brushed motor switch controls traditional DC motors with mechanical commutation, while a brushless motor switch integrates electronic control functions for BLDC motors with advanced speed regulation and protection.
| Feature | Brushed Motor Switch | Brushless Motor Switch |
|---|---|---|
| Main Function | On/Off and basic speed control | Electronic commutation and precise speed control |
| Motor Type | DC brushed motor | BLDC (brushless DC) motor |
| Speed Control | Basic variable speed | Advanced electronic speed regulation |
| Protection | Limited | Over-current, over-temperature, battery protection |
| Efficiency | Standard | Higher efficiency with electronic control |
| Typical Application | Cordless drills, basic power tools | Brushless drills, impact wrenches, saws, grinders |
ZT18-4 — Frequently Asked Questions
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