Contact Information

1390 Business Center Place
San Leandro, CA 94577
+1 510-297-5040
www.genfoundry.com

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About General Foundry Service

At General Foundry Service"We Pour Molten Metal into Useful Shapes in a Precise, Economical, & Timely Manner using Precision Sand Casting, No Bake (Air Set) Sand Casting, Rubber Plaster Molding (RPM), & Permanent Mold Processes." 

We provide comprehensive Prototyping, Pre-Production and Short-Run Production services. 

We show expertise in CNC Machining, Finishing, and Assembly. It isGeneral Foundry Service's quality, engineering, and on time deliveries that keep our customers coming back. 

  • ALUMINUM & ZINC ALUMINUM ALLOY CASTINGS.
  • Prototype, Pre-Production, "Bridge" to Production, & Low-Volume Production Quantities.
  • CNC Machined "Hog-outs" available for Prototypes.
  • Patternmaking and Secondary Machining Performed In-House.
  • Chemical Conversion (Alodine), Plating, Painting, Powder-Coating, Screen-Printing, and Assembly available for "Turn-Key" Solutions.
  • Made in the U.S.A.

Community Reviews Summary

15 Community Reviews 4.73/5 Overall Rating

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General Foundry Service Reviews

General foundry Service - Great Company to work with.


R & D / Engineering , Medical Device
06/01/2014

Speed 4 / Price 5 / Quality 3

Have used General Foundry Service over the last few years for our casting needs. Their process is a lower cost and a good way to keep the product within price constraints. Their staff really understands engineering, manufacturing and quality needs along with operations and able to work seamlessly overall departments. I highly recommend them for any casting needs.

Strengths: Contacted General Foundry Service for the expertise in design and tooling. We needed a customized solution to our existing graphic laminated product. By working with our R&D department we were able to take our existing product(s) and redesign the parts to meet the specific process requirements for the casting. The staff keep us informed every step of the way, so there were no surprises when it came time for delivery of the product.

Needs to improve: to keep the process streamlined or moving forward it is best to be precisely clear on the overall product requirements - what's important.

Great vendor to work with!


Manufacturing , Medical Device
06/10/2014

Speed 4 / Price 4 / Quality 4

Our company uses General Foundry Service to purchase products that value our assembly process on the many medical devices we produce. They have high quality electronic parts that we use in our circuitry and electrical side of our assembly process. The components and equipment we purchase when it comes to assembling small electrical components on the line or in our big machines their equipment are easy to use and great to work with. Their customer service team is very knowledgeable and helpful at ensuring your order is accurate and correct. They have a very efficient shipping process with a fast turnaround time. Overall a great vendor to work with.

Strengths: -Wide selection
-Quality products
-Fast turnaround
-Great customer service

Needs to improve: No weaknesses.

Generally awesome service!


General Administrative , Medical Device
06/10/2014

Speed 5 / Price 5 / Quality 5

Our firm contracted General Foundry Service for their expertise in casting and rubber molding to help us in manufacturing medical devices. Our company has a lot of customized needs and General Foundry was able to work with us and provide us with the proper solutions. We were able to use their guidance and products to take our existing designs and redesign the parts to meet the specific process requirements for the casting. Their customer service staff kept us informed the entire way and were very helpful. With their competitive prices, we will definitely continue partnering with this vendor!

Strengths: quality service, competitive pricing

Needs to improve: none

Great Experience


Operations , Medical Device
06/24/2014

Speed 5 / Price 5 / Quality 5

We contracted General Foundry Service for custom casting and molding for our medical devices. When we discovered we needed custom work for our devices we knew General Foundry was the vendor to turn to. They're very accommodating and competitively priced. We've turned to their design team numerous times for guidance. They're extremely helpful and insightful. Customer service was responsive and knowledgeable. Any issues were taken care of in a timely manner. Overall we've had a great experience working with them and will continue to do so.

Strengths: quality, customer service, reliability

Needs to improve: none encountered

Excellent products for Molds and Casts, with incredible customer service and competitive prices


CEO/Owner , Construction
06/24/2014

Speed 4 / Price 5 / Quality 5

We have used General Foundry's products to renovate buildings at my business's facilities. Their small casted items that they made for us, greatly helped us quickly and safely get our facilities up and running and for use at the members disposal. Additionally, the staff at General Foundry is knowledgeable and will always go to the greatest extent to make sure that you and your products to use are ready, high quality, and overall excellent.

Strengths: -Great Customer Service
-Great Quality
-Reliable Employees
-Reliable Products
-Good, Competitive prices
-Knowledgeable Staff

Needs to improve: None

Great Products


Customer Service , Consumer Products
06/20/2014

Speed 5 / Price 5 / Quality 5

We sourced General Foundry Service for their expertise in casting and rubber molding to construct our consumer products. Our company has a lot of customized needs and General Foundry was able to work with us and provide us with the proper solutions. We were able to partner with them and use their suggestions to make our product much much better. I also interacted with the customer service department and they were a pleasure to work with. I would highly recommend General Foundry Service.

Strengths: Products

Needs to improve: None

Excellent services offered for molding and design. Great customer service too.


CEO/Owner , Architectural And Engineering
06/10/2014

Speed 5 / Price 5 / Quality 5

We have used General Foundry over the years for various design and casting needs. They are great to work with because we usually get clients that need a fast turnaround and General Foundry is one of the few vendors that can accommodate our crazy schedule. Their pricing is excellent and their staff is also very friendly and knowledgeable. I highly recommend this group.

Strengths: Very high knowledge on intricate design and tooling. Great customer service and very competitive prices offered.

Needs to improve: None.

Investment casting expertise


General Administrative , Medical Device
03/19/2014

Speed 4 / Price 5 / Quality 5

Molding long thin Zn parts for medical research equipment; and aluminum parts for doors of same equipment.

Strengths: Very good a designing tooling and molding parts using investment casting ans rubber/plaster molding. Zinc products purchased to very high tolerances.

Needs to improve: To best utilize their knowledge base, the customers need to be very clear on what is truly important about their parts, especially with lower cost methods like they offer at General Foundry.

Aluminum casting


R & D / Engineering , Medical Device
05/30/2014

Speed 5 / Price 4 / Quality 5

Solid knowledge of casting processes. Staff is very proficient and does high quality work. Be sure to know exactly what your needs are to maximize the service that you receive. Good experience dealing with GFS. Job was completed ahead of promised delivery date.

Strengths: Casting, knowledgeable staff

Needs to improve: Make sure that you know exactly what you want...development process may take a while if you don't

A Good Source If You Are Looking for A Machine Shop


Manufacturing , Medical Device
06/01/2014

Speed 4 / Price 4 / Quality 4

High Quality work and Price Competitive. On Time Delivery

Strengths: We use General Foundry Service for their precision sand casting for our prototyping needs. Their technical and manufacturing staff are very knowledgeable. The manufactured parts are of high quality. A reliable source. The deliveries are on time as they have promised. Customer service is friendly and easy to work with. Price is competitive. Quotes are accurate.

Needs to improve: None

Great tooling partner


Operations , Consulting
05/29/2014

Speed 5 / Price 5 / Quality 5

We contracted General Foundry for their design and tooling services. We need a customized solution for rubber molding and were very pleased with their schematics and ultimate product. Great team knew their stuff and the service staff kept us updated throughout. Quality work product and quick lead time. Will use again.

Strengths: product quality, customer service, reliability, value

Needs to improve: none

very satisfied with the product and services


Purchasing , Medical Device
06/17/2014

Speed 5 / Price 5 / Quality 5

design tooling

Strengths: They are great to work with because we usually get clients that need a fast turnaround and General Foundry is one of the few vendors that can accommodate our crazy schedule. Their pricing is excellent and their staff is also very friendly and knowledgeable. I highly recommend this group.

Needs to improve: non

Great Customer Service and Knowledge


Manufacturing , Medical Device
12/11/2013

Speed 3 / Price 3 / Quality 4

Used General Foundry for several different casting processes, they have a lot of instutional knowledge in this area.

Strengths: Sand Casting and Rubber Plastic Molding. CNC machinging and Assembly.

Needs to improve: intial prototype requests may take longer than expected.

Great Foundry


R & D / Engineering , Medical Device
12/10/2013

Speed 4 / Price 4 / Quality 4

good quality, good support, knowledgeable staff.

Strengths: great customer service

Needs to improve: We have had issues with the powder coating quality on some parts, but they worked with us, and rectified the situation.

superb services


Manufacturing , Medical Device
06/01/2014

Speed 5 / Price 5 / Quality 5

Reliable service and excellent service!!

Strengths: Great customer service!! Good turnaround!

Needs to improve: nothing