Process automation

Providing our customized and integrated product solutions for equipment automation industry

SIR, a sub-brand of Wolong, as a leading enterprise of drive system solutions in equipment automation industry, we design and build robotic lines and systems, constructed in accordance with the customer’s specific needs such as aircraft manufacturing, automobile manufacturing and industrial automation production.

Related products

Distribution transformer

The high-voltage distribution transformer is made of high-quality copper wire, and the low-voltage distribution transformer is made of high-quality copper foil/copper wire and high-performance silicon steel sheet by vacuum casting. The performance parameters of 10KV products meet the requirements of national GB20052-2020 for grade 1, 2 and 3 of energy efficiency; 35KV subway products meet the energy-saving requirements of GB35553; Can also provide the design and manufacture of various special transformers according to user requirements; For example: Scott transformer, test transformer, frequency conversion transformer, plateau transformer and so on.

Learn more

Rectifier/Bidirectional Converter Transformer

Suitable for urban rail transit, mine traction, locomotive test line and other DC power supply system, through the combination of rectifier, can form 12 pulse rectification or 24 pulse rectification mode, can effectively suppress and eliminate harmonics, provide guarantee for the reliable operation of electric locomotive

Learn more