Fall 2015: Robertson Review
Download Fall 2015: Robertson Review in PDF
Offering Bronze Casting Technology
A visit to Robertson’s sand cast foundry tells you we excel in producing every kind of casting from bronze boat and ship fittings and submerged bearings for valves, heat exchanger applications and high voltage switching components. Manufacturers count on us for bronze bearings, electrical connectors and other components for their end product assemblies.
Bronze Advantages
Pre-production measurement verifies final casting and machining requirements.
Bronze castings can replace steel and other metal castings since bronze resists corrosion longer than most other alloys and has a shorter lead time. Bronze offers excellent machinability and corrosion resistance, is non-sparking, lacks magnetism, and provides unique wear characteristics and aesthetics. It melts at about 950 degrees centigrade but the melt temperature varies depending on the amount of tin included in the alloy.
Bronze castings are used in various industries and applications, including metering, fluid power, hardware and locks, power generation, artistic pursuits and many others.
Delivering Bronze Perfection
Robertson offers its customers CMM verification and reporting. The foundry is ISO 9001
How do we get to a perfect bronze casting for your project? We begin with a prototype. Prototyping makes the tooling and final pieces more affordable. Included in our prototyping services are the temporary tooling and pre-production tooling necessary to verify the final casting and machining requirements for your product.
Today, Robertson Foundries is a leaner, cleaner and more efficient foundry operation than at any time in our
history. Education and training continues to meet the changing needs of our customers. We are more technically competent, more educated, more diverse and more “in-tune” with global foundry dynamics. We invite your interest in learning how Robertson can meet your production requirements.
Our goal is to deliver spectacular results for you in our ISO 9001:2008 certified facilities. On your visit to the
sand cast foundry at Robertson, you’ll notice how we turn raw bronze ingot into finished components.
Your tour isn’t complete without checking out our heat treating and Coordinate Measuring Machine (CMM) verification capabilities. You’ll witness how we save our customers time, while avoiding outsourcing costs by doing all the work here in one location. When you reach the end of the line, you’ll find bronze pieces in sizes ranging up to 24” x 24” x 6” and weighing up to 100 lb.
When completed, your cast components are ready for immediate use in your shop as soon as you get access to them. This won’t take long with such delivery programs as Just-in-Time.
Getting Started with Bronze Casting
Our sand foundry includes these processes: jolt squeeze, shell coremaking, no-bake cores and molds and Hunter automatic.
Are you ready to produce a part in bronze? We welcome the opportunity to provide our quote for tooling and production. To initiate a bronze casting project, send a 2D and/or 3D drawing. We’ll need to know more about your part to process your quote. Explain your quality expectations so we know the parts we ship will conform to your specifications exactly.
Let us know what kind of finish your part requires. Will your part require tooling? How soon will you need your part? You’ll need to allow proper time for tooling and production. We’ll discuss all this information with you to help you understand what goes into a bronze part order. Based on these factors, we’ll prepare a quote for your review and acceptance.
Processing your Production Order
Experienced operator readies and checks equipment for Hunter matchplate molding at Robertson.
When we receive your order, we first verify all work required and pricing for consistency with our quote. If you require new tooling, we review all requirements at a senior management level before processing the order to ensure accuracy.
Next, we enter your part order into a scheduler to determine a projected delivery date. We issue an order acknowledgement confirming price and delivery/supply and standard quality procedures.
Lead Time Planning Schedule
Depending on the degree of complexity, the following
lead times can apply for tooling:
Sand casting: 2 – 6 weeks
Sand casting with core features: 3 – 8 weeks
Permanent mold: 8 –12 weeks
Besides tooling, we need time to produce your part, including casting, tooling, finishing and any other operations required. Lead time for production can run:
Castings: 3 – 4 weeks
Casting and machining: 6 – 8 weeks
If you purchase castings on a recurring basis, these lead
times are not required.
Minimum Customer Orders
Our minimum order size is $575.00 per order.