Production Flow
Heading: A coil of wire is cut to the required length and each piece compressed and shaped into balls using a pressing machine.
Flashing: The surface of the balls is ground to remove the bands generated in the heading process.
Heat treatment: After the bands have been removed, the balls are quenched adn tempered to give them sufficient strength and durability.
Grinding: In addition to removing parts decarburized in the heat treatment, this process adjusts dimensional precision and finishes the balls to the stipulated dimensional difference.
First lapping: The dimensional precision of the balls is further improved and they are finished to the specified dimensional difference.
Second lapping: In addition to increasing the balls' dimensional precision to grade level, this process gives the surface of the balls a smooth, glass like finish.
Visual inspection: All of the finished steel balls and all of their surface visually inspected automatically. These visual inspection ensure that the balls supplied to customers have no flaws.
Packing: Balls that pass visual inspection are treated with anti-corrosive oil and then packed in paperboard boxes.
Packing&Shipping
1.25kg poly /woven bag in one carton box with size 28cmx18cmx15cm
2.40 cartons in a plywood box with size 80cmx65cmx80cm
3.250KG per steel drum, 4 drums in one pallet with size 75cmx75cmx65cm
4.Customized packing
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below:
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