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SUCCESS STORIES

From Blueprint to Volume Production,
Proven in the Most Demanding Scenarios

Every story is a breakthrough at the limits of materials — decades of service inside nuclear reactors, potting for the world's first ultra-high-speed test facility, and long-term volume supply to three major generator OEMs.

CASE 01 · NUCLEAR POWER

Coil Bobbins for Control Rod Drive Mechanisms (CRDM)

GRT participated in the design and manufacturing of coil bobbins for control rod drive mechanisms at SNPP (State Nuclear Power Technology) and CGN. The coil bobbin is the core insulation and structural component of a CRDM, operating long-term in extreme environments of high temperature, humidity, radiation and vibration.

We successfully developed an integrally compression-molded 230℃-class silicone coil bobbin with fully independent intellectual property. Since 2017, it has been applied in 9 nuclear power units.

9
Nuclear Units in Service
230℃
Integral Molding
2017
Volume Application Since
NEXT-GEN

New-Generation 440℃-Class Assembly

The temperature index of the new-generation coil bobbin rises substantially from 230℃ to 440℃, with a 60-year service requirement. We have completed development of CRDM components including 250℃ ceramic coil bobbins, ceramic sealing compounds, ceramic casting materials, 4-meter rod-position coil bobbins, silicone impregnating varnishes, and 440℃-class impregnating varnishes and casting compounds — with 250℃-class products already in supply.

440℃ Temp Index60-Year Life250℃ In Supply
KEY POINTS

Key Project Value

  • ✓Fully independent IP — free from import dependency
  • ✓Validated under heat / humidity / radiation / vibration extremes
  • ✓Full CRDM component development from parts to materials
  • ✓4-meter rod-position bobbins by integral filament winding
CASE 02 · SPECIAL MOTORS · INSULATION

Insulation Localization for Large Generators & Frontier Equipment Potting

Since 2001, working with Shanghai Generator Works on localizing imported epoxy adhesives and potting compounds for 300MW, 600MW and 1000MW generator units — in volume production for many years. Also with Harbin Electric Machinery on localizing imported varnishes and adhesives for nuclear and hydro power, likewise in volume production.

GRT is a qualified supplier to Shanghai Generator Works, Harbin Electric Machinery and Dongfang Electric Machinery. Our resin adhesives are applied in high-speed motors, linear motors, rail transit and high-speed rail.

3
Qualified OEM Supplier
1000MW
Localized Unit Coverage
20+ yrs
Continuous Volume Supply
FLAGSHIP

GRT_1839 Epoxy Potting Compound · Electromagnetic Sled

GRT_1839 epoxy potting compound features low viscosity, self-defoaming and low exothermic curing — ideal for on-site large-volume potting of motor insulation. It has been successfully applied in CAS's world-first electromagnetic-drive ultra-high-speed ground test facility — the Electromagnetic Sled.

Low ViscositySelf-DefoamingLow ExothermLarge-Volume Potting
KEY POINTS

Key Project Value

  • ✓Import substitution securing the supply chain
  • ✓Covering thermal, hydro and nuclear generation equipment
  • ✓Extended to high-speed motors, linear motors and rail transit
  • ✓Serving a national big-science facility — the world-first electromagnetic sled
03 MORE APPLICATIONS

One Materials Capability, Many Industries

A-01

High-Speed / Linear Motors

Resin adhesive systems for insulation and structural bonding in high-speed and linear motors, supporting long-term operation under high rotational speed and dynamic loads.

High-Speed MotorsLinear Motors
A-02

Rail Transit & High-Speed Rail

VPI impregnation and insulation bonding materials for traction motors, resistant to vibration and thermal cycling, in volume application on rail transit equipment.

Traction MotorsHigh-Speed Rail
A-03

Defense HF Electronics

Hydrocarbon resins type-approved and volume-supplied as military high-frequency wave-transparent and insulation materials, validated against stringent military standards.

HF TransparencyType Approved
A-04

High-Temperature Structures

500℃-class high-temperature silicon-carbon resin composites for wave-transparent, thermal-protection, ablation-resistant and high-temperature insulation structures.

Thermal ProtectionAblation Resistant
A-05

Electronic Potting & Insulation

Epoxy potting compounds and impregnating varnish systems for insulation and potting of motors, generators, appliances and electronic components.

Insulation PottingComponents
A-06

Carbon-Fiber Composite Bonding

GRT_5627 nitrile rubber adhesive achieves reliable metal-to-CFRP bonding with high peel strength.

Metal-CFRP BondingOil-Heat Resistant

Your project could be the next milestone.

From material selection to joint development, GRT looks forward to defining the next generation of equipment materials with you.

Start a Collaboration →