Gauge Plate Insulator for Rail Fastening System
Gauge Plate Insulator

The gauge plate insulator is a core component of railway fastening systems. It is installed between the outer rail bottom and the shoulder of the baseplate. It has three core functions: maintaining the standard track gauge, realizing electrical insulation, and restricting and securing the rail laterally. And it is widely applied to high-speed railways, conventional mixed passenger-freight railways, metro and light rail transit lines. We specialize in manufacturing a complete range of railway fasteners, including insulated gauge blocks. Our gauge plate insulator can maintain precise rail gauge and deliver superior electrical insulation performance for all electrified railway lines. Custom solutions can be provided in accordance with customers’ drawings and technical specifications. Whether for railway project procurement, railway improvement or routine maintenance, we will meet all your requirements.
Our Gauge Plate Insulator Types

We manufacture many types of rail gauge plate insulator compatible with UIC, WJ, E-clip fastening systems and etc. Below are our top-selling gauge plate insulator models: UIC54, UIC60, WJ-I9 and other specifications. Our gauge plate insulators can maintain precise rail gauge and deliver superior electrical insulation performance. And we also provide customized solutions tailored to your requirements, including custom dimensions, materials, colors and molds. Feel free to contact us for details.
1. UIC54 Outer Gauge Plate Insulator

UIC54 Outer Gauge Plate Insulator Specification:
Product: UIC54 Outer Insulated Gauge Block
Material: Glass fiber reinforced PA66 / PA6
Applicable Rail: UIC54
Color: Black
Application: Railway Fastener System
Surface Requirement: Uniform color, clean & smooth; free of visible defects, pores, scorch marks and flash burrs
UIC54 Outer Gauge Plate Insulator Insulation and Physical Properties:
| Item | Specification |
|---|---|
| Insulation resistance | Greater than 2×10⁷ Ω |
| Hardness | ≥95HRR |
| Water absorption rate | <1.2% |
| Tensile strength | ≥120MPa |
UIC54 Outer Gauge Plate Insulator Dimensional Design Drawing:

UIC54 Outer Gauge Plate Insulator Dimensional Tolerances:
| Dimension Code | Tolerance | Dimension Code | Tolerance |
|---|---|---|---|
| A | 780+1 mm | F | 4.5±0.5∘ |
| B | 108±2 mm | G | 24±1 mm |
| C | 8±0.15 mm | H | 18±1 mm |
| D | 10.5±0.15 mm | I | 37±1 mm |
| E | 8±0.15 mm | α | 96±0.5∘ |
| β | 20₀⁺¹° | — | — |
2. UIC54 Inner Gauge Plate Insulator

UIC54 Inner Gauge Plate Insulator Dimensional Tolerances:
| Dimension Code | Dimension & Tolerance | Dimension Code | Dimension & Tolerance |
|---|---|---|---|
| A | 108±1 mm | F | 24±0.5 mm |
| B | 78.3−0.3+0.2 mm | G | 31±0.5 mm |
| C | 8±0.15 mm | H | 96.5±0.5∘ |
| D | 18±0.5 mm | K | 20±0.5∘ |
| E | 11±0.15 mm | J | 49±1 mm |
3. UIC60 Gauge Plate Insulator

UIC60 Gauge Plate Insulator Specification:
Product: UIC60 Insulated Gauge Block
Material: Glass fiber reinforced PA66 / PA6
Applicable Rail: UIC60
Color: Black
Application: Railway Fastener System
Surface Requirement: Uniform color, clean and smooth; free of visible defects, pores, scorch marks and flash burrs.
UIC60 Gauge Plate Insulator Insulation and Physical Properties:
| Item | Parameter Standard |
|---|---|
| Hardness | ≥95HRR |
| Water absorption rate | <1.2% |
| Tensile strength | ≥120MPa |
| Insulation resistance | >2×107 Ω |
UIC60 Gauge Plate Insulator Dimensional Design:

UIC60 Gauge Plate Insulator Dimensional Tolerances:
| Dimension Code | Dimension & Tolerance | Dimension Code | Dimension & Tolerance |
|---|---|---|---|
| A | 780+1 mm | F | 27±1 mm |
| B | 108±2 mm | G | 8±0.25 mm |
| C | 60±1 mm | H | 8±1 mm |
| D | 12.5±0.5 mm | K | 3.5±0.5 mm |
| E | 18±1 mm | J | 10.5±0.5 mm |
| α | 90⁺³₋₁.₅° | β | 90⁺³₋₁.₅° |
4. WJ8-I9 Gauge Plate Insulator

WJ8-I9 Gauge Plate Insulator Physical and Mechanical Performance:
| Item | Standard Parameter |
|---|---|
| Hardness | ≥105HRR |
| Internal structure | No bubbles or voids inside |
| Side ear shear property | No crack under 4.5kN shear force |
| Insulation resistance | >5×106 Ω |
| Surface requirement | Uniform color, free of pores, scorch marks, flying hairs and burrs |
WJ8-I9 Gauge Plate Insulator Dimensional Design:

WJ8-I9 Gauge Plate Insulator Dimensional Tolerances:
| Dimension Code | Dimension & Tolerance | Dimension Code | Dimension & Tolerance |
|---|---|---|---|
| A | 84±1 mm | D | 11.5−0.30 mm |
| B | 9±0.15 mm | E | 20−10 mm |
| C | 8±0.2 mm | α | 96.3±1.0∘ |
Certification Note: The above data has been certified by the National Railway Product Quality Inspection and Testing Center.
Advantages of Our Gauge Plate Insulator
1. Cost-effective
2. Long-lasting and durable
3. Lightweight
4. Excellent electrical insulation
5. Custom colors available
6. Wide temperature tolerance, heat and cold resistant
We are an professional and experienced manufacturer of Gauge Plate Insulator
We are a professional and experienced manufacturer of rail gauge plate insulators. We select high-quality raw materials and high-precision molds, which enables efficient mass production to satisfy bulk orders. Our advanced plastic processing technology ensures excellent toughness of finished rail gauge plate insulators. We are equipped with complete testing equipment, a professional QC team and a mature quality management system. Furthermore, we submit samples yearly to CNAS-accredited independent third-party labs for performance verification according to our annual production volume. We also provide customization services for rail gauge plate insulators. Feel free to contact us with your custom requirements.
And we can produce other various railway products, including Rail fasteners: rail clips, rail fish plate, Frozen joint bar, Glued joint bar, Rail brace, Gauge rods; Railway turnouts and parts: rail base plates, slide plates, spacer blocks, Machined Turnout Parts, Complete Turnout. We also supply rail milling trains and railway maintenance tools. We can also customize railway products as your needs. Feel free to contact us anytime.

Certification
We are an experienced and reliable manufacturer of railway products, we emphasize quality control, and we have our own professional inspection center and a comprehensive quality management system. Also, our products have passed the ISO9001 quality management system, ISO14001 environmental management system and ISO45001 occupational health and safety management system triple certification, and we have also passed the product certification of China CRCC.

