What We Galvanize
Emerald specializes in galvanizing smaller parts which are usually difficult and often not economical to galvanize in a large kettle. We also galvanize anchors and anchor chain for $1.40 per pound. A non-refundable deposit is required for all chain orders.
You may download the Chain Calculation Excel Sheet at the bottom of this page to figure out how much it may cost for your order, or give us a call.
Most small parts (including all small threaded parts) are run in perforated buckets then centrifuged immediately after hot dipping. The centrifuge spins fast and removes excess zinc. This process keeps sharp edges from forming and keeps bolt threads clean, saving you labor charges. Chain is also put into the centrifuge, to prevent links from sticking together.
Larger fabrications are usually wired or chained up before dipping. Our expert galvanizers use cranes to slowly lift them out of our kettle at an angle so that excess zinc runs off.
Typical types of producst we galvanize include:
The minimum diameter for galvanizing fasteners is 3/8” and the minimum size for galvanizing wood screws is #18. Bolts and chains up to a Rockwell hardness grade of 40 are usually acceptable to galvanize. Call us for our advice on other grades. Parts smaller than 1/2" in diameter cost more per lb than other parts, and need to be evaluated prior to sending us your order. Call us to discuss it.
Calculate your own estimate on chain:
We have weight limits on how much chain can be galvanized at one time. Very long chains may need to be cut into sections. We can cut your chain for you, and have one of our steel shops re-link it for you with a galvanized link. It's low cost and does not affect the strength of your chain. The chart below is a picture only. You can download the excel file for free at the bottom of this page, and type in your own chain length.
Download this free excel file here:
How much time does it take to galvanize my anchor or chain? Approximately 2 weeks. It depends on the sandblaster's schedule. Most chain needs to be sandblasted, but some do not. We call you when your order is done. A non-refundable credit or debit card deposit is required when you drop your chain off, but the balance can be paid via cash or check when you pick up your order. If it has been more than 3 or 4 weeks since you dropped off your order, please call us. Otherwise, we ask that you be patient since our phones are very busy.
Does all chain need sandblasting? Not necessarily. Light surface rust will come off during galvanizing preparation. Deeply pitted rust, lacquer, old zinc coating, and paint markers need to be fully removed using sandblasting prior to galvanizing. The best way for us to know is to see your parts in person. You can drop off material Monday - Friday, between 8:00 am and 3:30 pm. Our gates close promptly at 4:00 pm and we are closed on weekends and major holidays. Our team is at lunch between 12:00 - 12:30 pm.
How much does sandblasting cost? Please understand: Sandblasting charges cannot be estimated because the person doing the work does not know before he begins how long it will take. However, it is billed in 15 minute increments at $200.00 per hour. We keep the costs as low as possible for you. The average cost for most chain orders is a range of approximately $200 - $400.
Still have questions? Check out the other pages of our website or give us a call at (206) 782-8300.