Your Trusted Switch & OEM Parts Manufacturer
Established in Hong Kong in 1976, Toneluck (CK Group) has grown into a group company with more than 3,000 employees and registered subsidiaries at home and abroad. We design and manufacture micro switches, push button switches, door switches, power switches, rotary switches and OEM parts for many world-famous companies in the home appliance, automotive and industrial industries.
Read MoreOur Micro Switch Series
High-precision waterproof and dustproof micro switches for automotive, appliance and industrial applications.
Micro Switch
Snap action micro switches and limit switches for home appliances, automotive and industri…
View SeriesDoor Switch
Door switches for washing machines, dryers, refrigerators and lighting applications.
View SeriesPush Button Switch
Push button on/off switches for control panels, power tools and electronic equipment.
View SeriesPower Switch
Mains power switches and on/off switches for appliances and equipment.
View SeriesRotary Switch
Rotary switches for multi-position selection in control and equipment applications.
View SeriesKey & Start Switch
Key-operated push button start switches for secure equipment and vehicle control.
View SeriesWater Level & Pressure Switch
Water level and air pressure switches for appliances and pneumatic control systems.
View SeriesAuto Part
OEM auto parts and automotive switches for new energy vehicles and traditional vehicles.
View SeriesFeatured Products
Selected micro switches ready for sample and mass production.
Why Choose Unionwell
A complete quality assurance system backed by strong R&D and automated production.
Global Approvals
UL, cUL, ENEC, CQC and CE certified, RoHS and Reach compliant, tested to EN 61058-1 (VDE 0630).
In-House R&D & Tooling
Mold design, plastic injection, metal stamping, electroplating, assembly and QC all under one roof.
OEM / ODM & Custom
Rich OEM/ODM experience with custom designs and quick prototypes for domestic and foreign customers.
One-Stop Manufacturing
From design to mass production, delivering reliable switches and OEM parts for global brands.
Applications
From home appliances to automotive and industrial automation, micro switches are everywhere.
Home Appliances
Washing machines, dishwashers, refrigerators, ovens, water heaters and other hom…
Automotive
Car door locks, air conditioning controllers, seat and position sensors, new ene…
Industrial Equipment
Vending machines, ice machines, automation equipment, travel control and positio…
Entertainment Device
Multi-function telephones, mixing consoles, audio equipment and consumer electro…
Smart Home & Others
Smart home devices, gas appliances, dental equipment and other applications requ…
Certifications & Approvals
Latest News
Company updates, product highlights and technical guides.
Enhancing Reliability: The Indispensable Role of Sealed Micro Switches in Harsh Industrial Environments
Sealed micro switches deliver dependable switching in wet, dusty and high-vibration industrial envir…
Optimizing Electromechanical Micro Switches for Extreme Operating Temperature Ranges
How high-temperature micro switch grades extend reliable operation in demanding applications.
Optimizing Electromechanical Switch Sourcing: Toneluck Solution to Supply Chain Volatility
One-stop in-house manufacturing reduces lead time and supply chain risk for switch buyers.
Need a Custom Micro Switch?
Contact our engineers for OEM / ODM solutions, samples and a fast quote.
Get a Quote