High-quality components manufactured to precise dimensional tolerances and strict electrical specifications.
Located in Shenzhen, the leading city of Guangdong-Hong Kong-Macao Greater Bay Area.
Founded in February 2011 in Songgang Street, Shenzhen, we specialize in the development and manufacturing of premium Pogo Pin and Crown Contact Probe (CCP) systems. Over more than a decade of technological refinement, precision engineering, and customer commitment, we have transformed from a specialized local enterprise into a recognized global industry leader.
Our core operational competency spans the full lifecycle of custom spring-loaded connections—from computational model analysis and prototyping to high-volume manufacturing, plating inspection, and electro-mechanical verification testing. We cater directly to demanding international hardware brands, offering the agility of custom design combined with the scale of high-capacity factory output.
Take a virtual tour of our modern engineering, administrative, and test centers designed for high-performance product execution.
A deep technical analysis of Crown Contact Probes and their functional advantages over traditional connection methods.
Unlike standard pogo pins, a Crown Contact Probe (CCP) features a specialized multi-point tip geometry (frequently crown-shaped, serrated, or multi-point). This ensures reliable scraping of oxide layers on targeted contact pads, preserving high signal fidelity and ensuring low, stable contact resistance (Rc).
We source military-grade alloys: Beryllium Copper (BeCu) for optimum electrical conductivity and durability, and High-Speed Steel (SK4) for rigid mechanical life. Our electroplating line applies high-purity gold coating (Au up to 50u") over a nickel sulfamate barrier, preventing galvanic corrosion.
Every CCP system is configured to optimize the Force-Stroke curve. We design custom springs made of Music Wire or Stainless Steel (SUS) to deliver precise spring force (e.g., 30g to 150g) at working stroke, preventing component indentations while securing stable electrical contact over 100,000+ cycles.
How our integrated factory ecosystem helps procurement managers balance engineering demands and cost parameters.
In high-speed production schedules, connector shortages halt assembly lines. Located in the center of the Greater Bay Area, Shenzhen Rongqiangbin guarantees accelerated toolmaking (7-10 days for prototypes) and seamless custom volume manufacturing to support global shipments.
With volatile metal prices, our supply chain integration guarantees raw material supply (Brass, Copper, SUS, Gold bullion). We pass on structural cost efficiencies to ensure that clients achieve their targets for total cost of ownership (TCO) without quality tradeoffs.
Every batch of OEM spring-loaded probes undergoes Automated Optical Inspection (AOI), X-ray plating thickness verification, mechanical cycle tests, and contact resistance mapping. This minimizes field failures and product returns for high-value applications.
Operating under the core philosophy of "Customer First, Integrity First", we maintain a highly specialized, in-house technical engineering team. By integrating design capabilities directly with automated manufacturing cells, we have developed long-term strategic relationships with premier global OEMs and EMS suppliers.
We are a trusted supplier of choice for industry leaders, including:
Honeywell, Samsung, SIEMENS AG, ZTE, 360, QCY, HAYLOU, Shanghai Laimu, Luxshare Group, Aoni Electronics, Amphenol Group, and many other leading enterprises.
Our ISO9001:2015 certified Quality Management System underpins every stage of production, helping us meet strict environmental and functional standards across international markets.
Custom CCP and spring-loaded connections designed for high-density, rugged, and high-frequency applications.
Engineered with skin-friendly, sweat-resistant plating (nickel-free configurations) to support smartwatches, fitness trackers, and TWS Bluetooth headsets (e.g., QCY, HAYLOU).
Designed for multi-pin diagnostic pods, therapeutic tools, and patient monitoring equipment that require high reliability and stable electrical connection during movement.
Tailored for high-vibration automotive environments, supporting advanced driver assistance systems (ADAS), infotainment systems, and onboard sensor modules.
Featuring aerospace-grade alloys designed to withstand thermal shocks, vacuum-state outgassing, and severe mechanical forces without signal interruption.
Our connectors support a wide range of platforms, including mobile phones (mobile antennas), digital cameras, laptops, learning machines, handheld game consoles, GPS satellite navigation systems, military communications, electronic toys, and various portable electronics.
We combine state-of-the-art Japanese CNC machining with automated assembly and strict validation protocols.
Our automated high-speed turning centers process premium raw brass rods to within ±0.005mm tolerances. This ensures consistent plunger concentricity and thin, uniform barrel walls for reliable electrical performance.
We assemble springs, plungers, and barrels in a temperature-controlled environment. Automated sorting eliminates component variations, ensuring uniform spring force across production runs.
Our QA laboratory features advanced metrology equipment, including force-stroke testers, X-ray fluorescence plating analyzers, micro-resistance meters, and thermal cycling chambers.
How RQB is advancing probe technology to meet the demands of tomorrow's electronic systems.
As silicon chips and portable electronics shrink, our R&D team is refining manufacturing processes to produce reliable micro-probes with pin pitches below 0.3mm for testing next-generation wafer-level packages (WLCSP).
With the rise of fast-charging smart devices, we are optimizing the internal contact structures of our spring probes. This allows them to support continuous currents of 15A to 30A while keeping temperature rise below 20°C.
We design custom, coaxially shielded probes with optimized impedance matching (50Ω / 75Ω). This helps minimize signal loss and reflection, supporting test frequencies up to 40 GHz for 5G and radar electronics.
Clear, technical answers to common queries regarding OEM custom design, manufacturing limits, and ordering processes.
A Crown Contact Probe features a multi-point crown tip designed to bite through surface oxidation or contaminants on the target pad. Standard pogo pins typically use a single point (spear) or flat tip, which can struggle to establish stable electrical contact under low force conditions or on contaminated surfaces.
Yes, we specialize in OEM/ODM design. We can customize the diameter, working stroke, overall length, and spring force (ranging from 15g to over 200g) to match your application's mechanical and electrical specifications.
Our standard barrels are made of high-precision brass alloys, and plungers are machined from Beryllium Copper (BeCu) or SK4 steel. Our typical plating is gold-over-nickel, with customizable thickness from 3u" to 50u" of gold to meet challenging environmental and cycle-life requirements.
Every batch of probes undergoes automated dimensional checks, spring force-deflection testing, and contact resistance measurement. For high-reliability applications, we also perform environmental testing, including salt spray testing, humidity testing, and thermal shock testing.
Depending on the application's stroke, operating environment, and plating thickness, our standard probes are rated for 100,000 to 500,000 cycles. We also design specialized test probes capable of exceeding 1,000,000 cycles for semiconductor test sockets.
Yes. All our products meet European RoHS 2.0 and REACH environmental standards, and we can provide certificate compliance declarations for your documentation.
We typically complete technical drawings within 48 hours. Prototypes are manufactured and shipped within 7 to 10 days, while mass production orders generally ship in 2 to 3 weeks, depending on quantity and design complexity.
Yes. We offer complete custom cable assembly designs that combine our spring-loaded pogo pin connectors with custom magnetic housings, providing a complete charging solution for wearable devices.
Find the right interface solution for your high-performance electronic devices and testing applications.
Rongqiangbin
