What ever the job, we can solve it.

Our welding and machine shops combine the art of repair and fabrication to deliver customized solutions for your most demanding projects. Countless prototype models have emerged from our shop over the years: some at the request of customers, others through a combined effort between Peterson and Caterpillar. Many have been patented and have found their way into the Caterpillar product line itself. 

Our in-house engineering staff, using AutoCAD's sophisticated computer graphics, can design, simulate and test potential ideas even before a single pattern is laid out to cut. From there, special tooling like the giant Giddings & Lewis boring mill, the 500-ton Pacific Brake Press, the automatic-tracing burning machine, dual ram press, tungsten application machine, and automatic wire welders, are used by a crew long-experienced in customer fabrication.

Combined, these tools and teamwork turn customers' equipment problems into finished products quickly and efficiently with the quality people have come to expect from Peterson.

10 Cubic Yard Bucket & Counterweight System

Our Magnum 75 Metric Ton Class Bucket will dig and top load more than 20 cubic yards per minute. This system dug and loaded more than 12,000 cubic yards in one shift. Cost per yard equals in the range of $1.75, including equipment cap cost per hour, operator and labor support cost, and haul trucks.

Key Features:

  • J460 Series Adapters
  • Sidebar Protectors
  • Leading Edge with*TC (tungsten carbide) facing
  • 1/2" WEARCO "400" Plates

Our general purpose material buckets may be configured for a variety of impact and abrasive conditions and is available with bolt-on cutting edge, bolt-on adapters or bolt-on adapters with segments

Our High Versatility Design for 963 , 973 , 977, 983 can load material, doze with the straight blade, grab items with the hydraulically operated front clamp, or meter out the load. The Rotating Front Clamp provides maximum rigidity and strength and versatility for cutting edge options, bolt-on edges, bolt-on teeth or teeth with segments.

Standard designs are ideal for a wide range of material densities Agriculture, Construction, Forestry, Heavy Construction, Industrial, Mining, Quarry/Aggregate, Waste. Custom Designs and Special sizes can be developed based upon customer needs or other material densities.

Capacity: 10.38 cubic yards

Our general purpose material buckets may be configured for a variety of impact and abrasive conditions and are available with:

  • Bolt-on cutting edge (optional tungsten carbide facing)
  • Bolt-on adapters or bolt-on adapters with segments
  • Shell-tine construction
  • Tine reinforced bucket floor from the hinge plates to the cutting edge
    • Provide protection against impact and twisting forces.
  • Integral spill plates for better material retention
  • Steel rollback stop blocks protect the boom from damage and impact forces
  • Replaceable; weld-on wear plates to protect the bottom of the bucket
  • Sidebar protectors on straightedge and spade-nose buckets

Low, wide, large-capacity, scraper bowl conversion and wear package designs boost production and provide an inexpensive way to prolong your equipment service life.

Edge supports & steel router base bits help strengthen supports, floor plates and high-abuse components as well as providing dent resistance to bowl sides and floor.

Ejector and apron re-enforcement features box section design with integral casting, increasing dent-resistance wear life and overall rigidity. Floor plate liners and high-abuse components such as gussets are added for strength.

Bowl sideboards and rock deflectors are available for protection and offer increased volume for materials.

The push-pull arrangement includes a hydraulically actuated bail and cushioned plate which are bolted to the front of the tractor and a hook which is attached to the rear of the scraper.

Scraper wear package 651E – 657E:

  • ¼" H.T. bowl side liners
  • 3/8" H.T. bowl bottom liner
  • Additional moldboard reinforcement gussets
  • ¾" H.T. outside bottom wear bars
  • ¼" H.T. outside gusset overlays
  • Router bit support leading edge pin on protectors
  • Apron center gusset extension
  • ½" H.T. wear plates above router bits
  • Stinger push plate
  • 30" high scraper bowl removable side boards and rock deflectors

Bowl conversion 631E – 637E:

  • 1/4" H.T. side liners
  • 3/8" H.T. bottom liner
  • 3/4" extra moldboard gussets
  • 3/4" H.T. outside bottom wear bars
  • 1/4" H.T. outside gusset overlays & wear bars above router base
  • Apron center gusset extension
  • 3/4" H.T. apron bottom lip
  • 18" C-10 sideboard extension & 1/4" C-10 sideboard gussets
  • 1" C-10 stinger push plate
  • 9J9600 pin on shin guards & mounting brackets
  • 1/2" C-10 formed bumper overlays
  • Ejector cylinder rod guard

Peterson's Fab Shop  teamed up with Peterson's Power Systems to design and build a custom undercarriage for repowering Morningstar Farm's Tomato Harvester. The machine is a unique two-row harvester that was requiring constant and costly repairs on the poorly-sized undercarriage. Using a hybrid mix of CAT undercarriage components, we came up with a design that met the functional requirements of an 8-to-9 mph hwy travel speed, 70,000 lb load capacity and a short deadline.

Conveyor System for tunnel contractor

Peterson's Fab Shop built a conveyor system for customer Shank/Torno for their water tunnel contract in San Francisco. The system consisted of over 100 feet of conveyors, laid out and built in Peterson's San Leandro shop. The project required 2 seven-ft erector arms and a giant nine-ton backhoe arm to assist in the tunnel excavation ... all built at Peterson.

Clinch Control for Hydraulic Excavators

Peterson’s “clinch” load-sensing tool control system for hydraulic-excavators has been another winning idea. “We made many, many of these over a five-year span,” states Peterson engineer Bud Collins, whose idea it was to add multi-functionality while still maintaining factory cycle times. "Caterpillar has since incorporated the function into their excavators at the factory. It’s a different system than we used but it does exactly the same thing.” Peterson sold 400 of these units until Caterpillar came out with their upgraded C models.