RFQ 434535 Chipper Specifications.pdf
PDF 264 KB Posted
- Solicitation number
- 434535
- Issued by
- Alameda County, California
About this file
This is a Request for Quotation (RFQ) specification document for the City of Oakland, California, Department of Public Works, Tree Services Division, seeking to procure two (2) wood chippers for installation at the City of Oakland Equipment Services Shop located at 5050 Coliseum Way. The specification document details the technical requirements for a Bandit model chipper with a 12-inch throat opening, 120 feet per minute feed rate, and a 5/8-inch chip capacity. The equipment specifications include detailed measurements (190 to 220 inches in length, 85 inches in width, 101 inches in height, and approximately 7,800 pounds), engine options ranging from 120 to 174 horsepower in both gas and diesel configurations, and a comprehensive list of components including suspension systems, electrical features, hydraulic systems, and safety equipment. Questions regarding the RFQ are due by Monday, October 12, 2026, at 2:00 PM via email to the Procurement Buyer, with any material addenda to be issued no less than 72 hours before the proposal deadline unless extended.
The award will be made to a single vendor based on the lowest, most responsive, and responsible bid. The specification document provides extensive technical detail on the chipper's construction, including frame materials, braking systems, feed wheel configurations, cutting disc specifications, hydraulic specifications (12.0 GPM at 2,500 PSI relief pressure), discharge swivel capabilities, and integrated safety features such as guards, hood engine disable plugs, last chance pull cables, and mechanical spring lock pins. Paint color options include standard Bandit yellow or green, with additional colors available for an additional charge. The document does not specify pricing, set-asides, funding sources, or contract term information, which would be contained in separate RFQ documents.
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| File | Type | Posted |
|---|---|---|
| RFQ 434535 Chipper Specifications Additional Requirements.pdf |
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Text version
Measurements
Dimensions
Engine
Chassis
Electrical
RFQ 434535
Chipper Specifications
Capacity: 12"
Throat Opening: 12 1/2" x 19"
Feed Rate: 120 FPM producing a 5/8" chip
Noise Level: 80 decibels at 50' (360 degrees around)
Length (with infeed tray 190" closed):
Length (with infeed tray open): 220"
Width: 85"
Height: 101"
Weight: 7,800 pounds (approximate)
Tongue Weight: 700 pounds (approximate)
Options: 120 to 174 horsepower gas and diesel engine options
Clutch: NACD over center or spring loaded clutches
Radiator Guards: To include (2) radiator guards mounted in front of radiator to protect from damage
Mount: (2) adjustable mounts are provided to secure belt tension
Drive: 5V drive belt system
Reversing auto feed control Included with Bandit control panel system:
Frame: Mainframe is made from 1/4" X 2" x 6" rectangular tubing with a 3/8" X 3" X 6" tongue
Suspension: Single 8,000 pound Torflex EZ-lube axle
Brakes: Electric
Tires: (2) 215/75R 17.5" tires mounted on 8-bolt HD gray rims
Fenders: Preformed 12 gauge aluminum tread brite fenders with mud shields
Hitch: 2 Position hitch mounting plate with a 2 1/2" pintle hitch. Equipped with 5/16" link type chains and safety chain hooks and lock clips.
Tongue Jack: 8,000 pound "Bulldog" tongue jack, adjustable for height with 15"travel capacity and stationary foot pad.
Battery: (1) 1,000 CCA battery
Electrical Plug: Sure flex 12' long coiled cord with 6 round plug
Taillights: (2) LED stop/turn/taillights
Terminal Junction Box: 7 terminal heavy-duty junction box
Clearance Lights: Side facing, front and rear facing LED clearance light
License Plate Mount: (1) License plate mount with LED light
Feed System
Taillight Covers: Standard
Type: Slide Box
Down Pressure Springs: (2) 17" long adjustable "easy climb" down pressure springs.
Adjustments For Springs: (4) adjustments are provided that will allow for 0" to 6" of travel before you start spring tension
Yoke Sides: Slides for the box are (4) 1" X 1" X 11 1/2" replaceable "Phenolic" wear strips
Feed Wheels: (2) horizontal
Feed Wheel Dimensions: 18 3/4" wide x 10 5/8" diameter
Feed Wheel Teeth: Top & bottom wheels are equipped with special non-wrapping knife edge teeth, 1" high, full length of wheel. Top feed wheel has (9) teeth, and bottom feed wheel has (12) teeth
Feed Wheel Shafts: 2"
Feed Wheel End Caps: Toothed to eliminate wrapping around shafts
Sharpened Scraper Bar: Mounted behind bottom feed wheel to reduce wrapping
Number of Hydraulic Motors: (2)
Displacement: 32.3 CID
Feed wheel motor torque (each 12,858 (inch/ pounds) feed wheel):
Feed wheel pulling power 2,420 (pounds) (each feed wheel):
Attachment: Tapered fit coupling system lnfeed Hopper Dimensions: 29" high x 64" wide lnfeed Thickness: 3/16" thick lnfeed Tray: 30" fold down infeed tray Also to include a safety control bar located on three sides of infeed hopper to allow actuation of feed wheels forward/neutral/reverse. The control bar is supported by (2) 1" threaded rods.
Spring Lift Assists: To be located on each side of the infeed tray to assist in folding
Feed Roller to End of lnfeed 66" Table:
lnfeed Slope: 3 degrees
Bottom Clean Out Door: Included
Hydraulic Lift Cylinder: Standard
Style: Disc
Dimensions: 40" diameter x 2" thick with 1" hub
Drum I Disc Weight: 790 pounds
RPM: 1,150 RPM's
Knife Pockets: (2), each pocket holds two knives
Knives: (4) 1/2" thick X 4 1/2" wide X 7 1/4" long
Thrower: (2) disc fan blades 4" x 4" x 12 ". These blades assist with throwing chips, fully loading chip vans.
Anvil: (4-sided) 1/2" thick x 4 1/2" x 12 1/2"
Chipper Shaft: 4" diameter at hub, held in place by a 3/4" thick X 7 1/2" diameter steel lock ring and (4) 5/8" grade 8 hardness bolts.
Chipper Bearings: (2) 2 7/16" bore, 4-bolt Flange mount, greasable and easily replaceable bearings.
Chipper Hood: Hinged chipper hood to be constructed of 3/16" steel and fold back for easy access to disc. Transition half of hood to be constructed of 3/16" material. Hood is held in place with (1) 1" diameter locking pin.
Cutting System
Discharge
Fuel Tank
Battery/ Tool Boxes
Safety Features
Chipper Base (Front): 1/2"
Chipper Base (Back): 1/2"
Belly Band: 1/4"
Right Throat Side: 1/2"
Left Throat Side: 1/4"
Throat Bottom: 1/4"
Type: Open Center
Filtration: 3 Micron return, 100 micron suction
Pump: Gear style
Pump GPM: 12.0
Relief Pressure: 2,500 PSI
Hydraulic Hoses: 1/2" & 5/8" single and double braid
Hydraulic Hose Burst 12,000 PSI Pressure:
Swivel: 360 degree manual swivel
Deflector: 3 position manual chip deflector
Hand Crank Swivel Discharge: Standard
Hand Crank Height Discharge: Standard
Capacity: 40 gallon steel fuel tank
Mount: Rubber Shock Mounted
Magnetic Drain Plug: Standard
Sight Gauge: Standard
Lockable Filler Caps: Standard
Capacity: 13 gallon steel hydraulic tank
Mount: Rubber Shock Mounted
Magnetic Drain Plug: Standard
Sight Gauge: Standard
Lockable Filler Caps: Standard
Colors: Two standard colors available: Bandit yellow or Green (additional colors available for an additional charge)
Battery Box: Aluminum
Tool Box: Aluminum
Safety Features: Guards covering all moving parts Chipper hood engine disable plug Disc lock bar Wooden pusher paddle Mechanical spring lock pi for hood pin
(2) last chance pull cables (patented) Safety control bar
Construction
Hydraulic System
Hydraulic Tank
Paint
File details come from the government source that posted it. Updated .