DAOLER® Diamond Friction Shims | Game-Changing Patented Technology Redefining the Reliability Standard for High-End Equipment Connections
In high-end smart manufacturing sectors such as wind power, rail transit, intelligent robotics, new energy vehicles, and aerospace, connection shims are critical miniature components that ensure stable equipment operation, prevent loosening and slippage, and extend overall system service life. Conventional shims commonly suffer from inherent limitations—low friction coefficients, severe torque decay, failure under extreme temperature conditions, pronounced fretting wear, and poor adaptability—which have long constrained the pursuit of higher precision, lightweight design, and extended durability in advanced equipment.
As a specialized domestic brand dedicated to high-reliability friction-based anti-loosening solutions, DAOLER® has devoted years of intensive R&D and precision manufacturing expertise to friction shim technology. Leveraging our proprietary core patents, rigorous production processes, and a comprehensive validation system spanning diverse operating conditions, we have developed the DAOLER® Diamond Friction Shim series as a benchmark product line. With distinct brand differentiation, disruptive technical performance, and drop-in replacement compatibility, our shims fundamentally resolve industrial bolted-joint loosening issues, establishing DAOLER® as the preferred component partner for high-end equipment manufacturing and precision machinery upgrades.
I. DAOLER® Core Brand Differentiators | Exclusive Capabilities That Set Us Apart from Ordinary Shims
Unlike generic off-the-shelf metal shims or coated shims, DAOLER® adheres to three strategic brand pillars: "original in-house R&D, precision intelligent manufacturing, and application-specific customization." All DAOLER® products are developed independently and produced on our own dedicated production lines—no off-the-shelf molds, no OEM homogenization. This creates an insurmountable competitive moat, with distinctive features that speak for themselves:
1. Exclusive Diamond Patent Technology – A Core Industry Differentiator
DAOLER® exclusively employs a patented nickel-plated steel substrate combined with a micron-scale diamond-embedding process, paired with our proprietary laser micro-etching technology to create a micro-interlocking surface architecture. This approach eliminates the shallow-layer defects inherent in conventional sprayed or coated shims. Through precision electroplating, diamond particles are uniformly embedded into the substrate surface—ensuring no detachment, no wear, and no performance degradation—while simultaneously establishing a controlled three-dimensional frictional topography. The result is a dual anti-loosening mechanism combining mechanical interlocking with frictional locking, fundamentally addressing chronic industry challenges including bolt micro-slippage, torque decay, and joint loosening.
Backed by multiple independent proprietary patents, DAOLER® delivers stable performance across a wide pressure range and full-temperature operating conditions, decisively outperforming homogenized commodity shims. We are one of the few specialized brands in the industry to have achieved commercial-scale production of diamond-friction-structure shims.
2. Superior Performance Parameters – Outperforming Conventional Shim Categories
DAOLER® Diamond Friction Shims have undergone tens of thousands of cyclic vibration tests, thermal shock cycles, and high-pressure load assessments, with performance metrics far exceeding industry standards and competitor offerings: static friction coefficient consistently maintained between 0.65 and 0.70—three to five times that of conventional metal shims; friction coefficient exhibiting no significant fluctuation across a broad pressure range of 30–400 MPa; preload retention rate ≥98% under severe vibration and extreme-temperature conditions; and torque transmission efficiency improved by 40%–55%, significantly optimizing bolt preload utilization while eliminating loosening, displacement, abnormal noise, and precision degradation during equipment operation.
In addition, our shims feature exceptional wear resistance, thermal stress resistance, and interlayer delamination resistance, effectively mitigating high-frequency fretting wear, thermal deformation, and oil-film infiltration. Even under challenging conditions involving oil contamination, moisture, or dust, performance remains stable and unaffected by common operating medium interference.
3. Drop-In Replacement Compatibility – Lightweight, Minimalist Design
DAOLER® places strong emphasis on engineering applicability and industrial-scale production readiness, with key compatibility advantages: no modification to existing joint structures, no new tooling development, and no adjustment to assembly processes required. Our shims serve as direct replacements for conventional standard shims, seamlessly compatible with lightweight advanced substrate materials including electrocoated steel, aluminum alloys, and carbon fiber, and adaptable to the vast majority of standard connection architectures in high-end equipment.
Through an ultra-lightweight precision design philosophy, our shims effectively reduce component volume and overall system mass while maintaining ultra-high joint rigidity and anti-loosening performance—perfectly aligned with industry trends toward lightweighting in new energy vehicles, joint miniaturization in robotics, and structural densification in wind power equipment. This enables customers to reduce costs, enhance efficiency, simplify assembly workflows, and shorten product iteration cycles.
4. Full-Scenario Rigorous Validation – Authoritative Certification in Premium Sectors
All DAOLER® product series have passed stringent validation testing across four core industries: wind power, rail transit, robotics, and new energy vehicles. Certification encompasses fatigue life testing, thermal cycling tests, alternating vibration endurance tests, and salt-spray corrosion testing, with proven adaptability across an ultra-wide temperature range of –60°C to 280°C. Our products are widely deployed in critical precision joint applications including wind turbine flange connections, rail transit undercarriage systems, industrial robot joint modules, new energy vehicle battery packs and chassis systems, and precision machinery engine flanges. Backed by consistently reliable performance, DAOLER® has earned long-term recognition and volume procurement from leading advanced manufacturing enterprises.
5. Customized Engineering Services – Full-Process Technical Enablement
Distinguishing ourselves from standardized off-the-shelf alternatives, DAOLER® provides one-on-one dedicated engineering support for product selection, application-specific customization, and technical integration. We develop tailored friction shim solutions with custom dimensions, friction ratings, and wear specifications based on each customer's equipment operating conditions, load requirements, assembly standards, and service environment. Our full-process services encompass assembly guidance, operational parameter optimization, and post-installation technical follow-up, ensuring comprehensive joint reliability and long-term system durability.
II. DAOLER® Product Core Application Scenarios
Leveraging our differentiated technological advantages and consistent performance, DAOLER® Diamond Friction Shims have achieved comprehensive coverage across core high-end smart manufacturing sectors: new energy vehicles (battery packs, chassis, motor connections); industrial intelligent robots (joint modules, precision transmission interfaces); wind power generation (tower flanges, blade connections); rail transit (vehicle undercarriages, braking systems); aerospace; and precision construction machinery. Our solutions holistically address the critical challenges of connection loosening, precision degradation, and insufficient service life in advanced equipment.
