Tianjin Kimwan Carbon Technology & Development, Co., Ltd.

Pantograph Carbon Strips
The pantograph is the electrical equipment that draws electrical energy from the catenary. It is installed on the top of a locomotive or a moving car. It is the core component of the electric locomotive to provide power.
After years of unremitting efforts, our company has made significant achievements in the self-developed metal-impregnated carbon strips, from raw materials configuration, extrusion molding, baking to machining. In the railway industry, Kimwan is dedicated to provide customers with cost-effective, personalized products and solutions.

Technical indicators:
Technical specification source: TJ/JW029-2014、TJ/CL328-2014 and TJ054-2014

Item	Unit	Pantograph Pure Carbon Strip		Pantograph Metal-impregnated Carbon Strip
Item	Unit	Technical specification	Inspection result	Technical specification	Inspection result
Bulk density	g/cm³	≤1.8	1.72-1.75	≤4.0	2.2~2.6
Flexural strength	MPa	≥31	50-59	≥50	60~65
Compressive strength	MPa	≥60	70-85	≥100	110~120
Impact toughness	J/cm³	≥0.1	0.15-0.21	≥0.15	0.15~0.2
20℃ Electrical resistance	μΩ·m	≤40	30	≤12	6~9
Rockwell hardness	HRC	45~100	80-85	≤120	50~60