The production workshop spans more than 8,000 square meters. It is outfitted with over 80 sets of production equipment, including 27 sets of vertical pressing machines in capacities ranging from 40 tons to 250 tons, 8 sets of threading machines and 4 net-belt type heat treatment production lines. Backed by the efficient production devices, the annual production capacity of bolt spike is 12,000 tons, annual capacity of spring bar is more than 10 million pieces, and the heat treatment capacity is 8,000 tons.

• Raw materials processing workshop
• Profiling shop

Our raw materials are supplied by large steel manufacturers, such as SHAGANG Group and SHOUGANG Group. The raw materials are classified into different categories and are strictly tested according to our company’s quality control procedures. The stable quality of the raw materials ensures the quality of our products.

• Steel pipes

The 3 automatic feeding cutting machines achieve the output of 60,000 parts. Designed and manufactured by our own technicians, the automatic feeding device effectively controls the workpiece size of the broken material to 0.5mm, thus guaranteeing the accuracy of broken materials.

• Cutting of raw materials
• Steel

We are equipped with 10 sets of semi-automatic chamfering, turning and pointing machines with the output of 6-8 million parts per shift. The semi-automatic turning and pointing machine can control the turning and pointing angle and length to realize effective control of the quality of the turning process.

• Chamfering
• Close view of chamfering

We have 7 sets processing equipment and 2 sets of CNC lathes. The molds are independently processed by our company to ensure high quality of the mold and saves production costs.

• Workpiece polishing
• CNC lathe operation
• Close view of CNC lathe processing

• Forging machines
• Forging

SUYU’s production workshop is furnished with 18 forging presses and 9 sets of automatic infrared-control 160-ton punching machines. The machines are easy to operate and adjust. It features high production efficiency and protect workers from injury caused by incorrect operation during the operation of machines.

• Cutting edge

• Thread pressing
• Medium frequency heating device for thread pressing

There are 10 threading machines in our production workshop and 5 thread rolling machines are modified for infrared control. The automatic temperature control medium frequency heating device is equipped to ensure the length of products.

• Thread rolling

The screw spikes are finished with wax and automatic temperature control ensures the quality of wax finishing.

• Semi-finished products to be tested
• Screw spikes
• Spikes
• Wax finishing

We strictly control the quality of the fasteners before packaging to remove the unqualified products. The packaging workers and the products are identified with specified numbers, so the packaging quality and quantity are clear to trace.

• Packaging and sorting
• Top view of packaging and sorting

• Finished products warehouse
• Railway spring bar production shop ready for production