Round Mate® FAQ

Q. What is Round Mate?

A. A patented precision modular mold base system with quick change cavity sets that can reduce mold change over times to 10 minutes, and lower tool costs by as much as 30 percent.

Q. What Steel is used for the Master Frame?

A. The Master Frame is constructed entirely with 420 Stainless Steel mold plate.

Q. What is the coating and what does it do?

A. The coating is a special chrome alloy that gives the Master Frame exterior and bore surfaces a hard, slick coating to guard against wear and corrosion.

Q. What Steels are the inserts available in?

A. Off-the-shelf; P-20; H-13; S-7; 420SS; 420SS Pre Hard

Q. Do you have Aluminum inserts or other steels?

A. Yes, we can provide additional materials to customer specifications.

Q. What is the manufacturing accuracy of the system?

A. Every Master Frame is constructed to strict guidelines with +/- .0002 in the critical insert locating areas.

Q. Is there enough water to cool the system?

A. Yes, with many options to provide more cooling if necessary. See our Mold Build Guides for more details.

Q. Do the O-Rings leak?

A. Not if assembled correctly. This is because we build the system using a unique Duel Size O-Ring and groove design to insure against Rolling or Cutting them during installation.

Q. How do you remove the water before removing the insert?

A. It is helpful to remove the water lines that are connected to the base and blowing air through the base prior to removing the insert, purging the water from the jacket area.

Q. How does the insert lock into place?

A. There are Four Lifter/Retainers 90° apart and a special “T” handle allen wrench used to snug into place. Care must be taken to not over tighten.

Q. Can you use sleeve ejection?

A. Yes, you can.

Q. Can hot bushings and hot tips be installed into a Round Mate Insert?

A. Yes! We support many manufacturers of Hot Bushings and we also produce our own Multi Tip Hot Runner.

Q. What if my part is to tall for standard inserts?

A. Various stand-up options are available. The Master Frame is easily adjustable to various insert thicknesses.

Q. Can I cut the cavity in the solid insert blank?

A. Yes! You can also easily heat treat the inserts to add significant durability to the mold.

Q. How can I check my detail dimensions and location, the insert is round?

A. Datum is from the center and usually radially located about the center line.

Q. What size and configurations are available?

A. Four, six, eight, ten, and twelve-inch diameters are available. We keep our 6” and 8” sizes stocked for quick delivery.

Q. Can you have a three plate mold?

A. Yes, the base can be configured to be a three plate and or a stripper disc can be designed in the center of the mold insert. See our Design Guide for more information. Stripper bolts are easily added to the side of the master frame.

Q. Can you use slides in the inserts?

A. Yes, standard slides and butterfly lifters are frequently used.

Can the mold be heated to 350° F?

A. Yes, however, it requires special O-Ring Seals.

Q. How does it compare to MUD?

A. Round Mate is more accurate, with a faster changeover. Compared to MUD, it is more cost effective, more durable, with a quicker mold delivery. Round Mate can be customized to yours needs and is expandable. Choose from one, two, or four position master frames. Round Mate is high precision with a simplified mold design. It features excellent 360° Cooling. And, lastly, each mold costs less.