CAB Incorporated | Over 30 Years of Excellence

Custom Designing & Manufacturing of Machine Fixtures

At CAB Incorporated we have been a supplier of precision machining services for over 30 years. Our skills, which include casting and forging, were required when a customer in the mobile refuse collection industry asked us to design, engineer, model, and machine a lifting arm component known as an arm pivot bracket. To ensure proper rotation of the casting while machining, we needed a custom repeatable machining fixture, which we successfully designed and manufactured. Along with critical material requirements, the customer also specified strict dimensional tolerances on key design elements to ensure proper function of the component during operation. Working from 2D CAD drawings and using an ASTM A-487 GR 4A steel casting, we employed our vertical turning lathes, horizontal machining centers, and gantry lathes to manufacture this 6.218" long and 2.5" wide arm pivot bracket. Made to exacting tolerances of ±0.03", we then applied a normalized and tempered finish surfaced to a roughness average of 63Ra. 90-115 ksi tensile, 60 ksi yield, and MAX carbon 0.27 percent testing and inspection were performed during the manufacture of this heavy-duty bracket to certify its integrity. Although not used on this project, we also offer SPC quality control analysis (Cpk, etc.) and Gauge R&R studies. In only four days following our customer's release, we delivered 1,200 of these arm pivot brackets to Fort Payne, IN.

Our engineering skill and expertise in machine tool design and fixturing stands second to none. Contact CAB Incorporated to learn more about our custom precision machining services today.

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Design & Manufacturing of Machine Fixtures Project Highlights

Product Description
Arm pivot bracket
Capabilities Applied/Processes
Primary:
  • Design Engineering/Modeling
  • Machining
Equipment Used to Manufacture Part
Vertical Turning Lathes
Horizontal Machining Centers
Gantry Lathes
Overall Part Dimensions
Length: 6.218"
Width: 2.5"
Tightest Tolerances
±0.03"
Material Used
ASTM A-487 GR 4A Steel Casting
Material Finish
Normalized & Tempered, 63Ra
In process testing/inspection performed
MAX Carbon 0.27%, 90-115ksi Tensile, 60ksi Yield
Industry for Use
Mobile Refuse Collection
Volume
1200pcs/yr.
Delivery/Turnaround Time
4 Business Days After Release Request From Customer
Delivery Location
Fort Payne, AL
Standards Met
Customer Specifications, 2D CAD Drawing

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Component
Truck
Truck
Analysis
Analysis
Analysis
Fixture Design
Fixture Design
Fixture Design
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