Posts Tagged ‘Drum Chippers’
Everything You Need to Know About Brunette Chippers
Friday, April 19th, 2024
We don’t need to tell you that wood processing machinery operates under demanding conditions. When you are in the business of producing quality pulp chips you need Chippers that can handle the toughest jobs and deliver the highest production rates.
Today’s sawmills are faced with ever-increasing demands for capacity, efficiency and availability. They require custom solutions and rugged machines that are easy to maintain and perform well under rigorous use. While the main purpose of a sawmill is processing softwood or hardwood logs into quality lumber, they also need the means to process the sawdust, chips and bark as additional value streams.
Brunette Machinery offers a full line of drum chippers available in various sizes and model configurations. With their rigid structural frame and powerful high-inertia rotor, Brunette Chippers are built for optimal performance, lower maintenance costs, and the best quality chips at the highest capacities.
Our Chippers are renowned for producing quality pulp chips from short material that is difficult to control. Some of our models are capable of producing “micro-chips” — giving you access to more markets, and more flexibility.
Designed with a wide throat, Brunette Chippers can accommodate large pieces such as logs, lily pads, cores, and spinouts. The single piece tapered knives process material across the full width of the drum providing even wear and longer life.
Brunette Chippers have many features making them ideal for your application including adjustable chip length and the Brunette Quick-Change knife system for one-person changeouts.
The Benefits
Superior Chipping Performance: Brunette Drum Chippers combine high capacity and excellent cutting geometry to easily process green and dry trim ends, shorts, overs, lily pads, small logs, and butt ends.
High Quality Chips – Minimal Maintenance Costs: Brunette Chippers are furnished with first-class arbor bearings that ensure close knife to anvil clearance for optimum chip quality. The contour of the drum creates a clamping force to securely hold the material between the anvil and the knife path. This prevents the material from tipping up toward the drum, reducing maintenance costs.
Save Time & Money: The swing-away anvil saves valuable production time and repair costs associated with tramp metal.
The Construction
Frame: The rugged main frame is welded with reinforced steel plate bearing mounts and connecting flanges for infeed and rear discharge chutes. It is stress relieved and jig machined for accurate alignment of bearings, knives, and anvil. Heavy-duty bosses are spigotted into frame for pivot pins and shear pins.
Rotor: Constructed with welded steel plate segments, the high inertia rotor processes high volumes and uses less energy than other industrial chippers. The rotor is mounted to a HTSR shaft by two B-LOCs and the entire rotor assembly is supported by Pillow Block bearings. The rotor is adjustable for optimum knife-to-anvil clearance.
Access Hood: The hood opens with a hydraulic cylinder operated from a Hydraulic Power Unit with a 1.5HP 1800 rpm motor for safe, ergonomic, and easy knife changes.
Anvil: The swing away anvil assembly is secured by shear pins and comes complete with a bolt-on hardened, reversible anvil.
Knives: Brunette Chippers are equipped with solid, flat tapered knives, and quick-release knife clamps for easy knife changes. The knives process material across the full width of the drum for even wear and longer life.
Drive: V-belt transmission (where supplied)
Colour: Brunette Blue
The Options
Pneumatic Disk Brakes: These air adjustable, heavy-duty caliper brakes are built to bring the rotor to a stop quickly and safely. This quick stop action also speeds up knife changes. Guard is included for safety.
Screen: A bottom screen is available as an option for all Brunette Drum Chippers. Made from AR400 plate, this rugged bolt-on screen is designed to reduce overs — typically 0% to 3%.
Chute: The infeed chute mounts directly to the Drum Chipper ensuring a smooth transition for material entering the drum from a conveyor. The chute features one-piece construction with a 45-degree slope and comes complete with a large inspection door. The chute is equipped with a containment curtain to prevent debris blow back, heavy duty ribs for durability and an abrasion-resistant liner.
Key Knife Uni-Ridge System: This disposable turn-knife system is an alternative to Brunette’s standard quick-change flat tapered knives. The Key Knife system comes complete with Uni-Ridge Drum Chipper pocket assemblies including Uni-Ridge starter knives, counter knives, holders, and hardware. The Key Knife Uni-Ridge system is compatible with standard Brunette OEM knife clamps & studs.
The Safety Features
All Brunette Drum Chippers are equipped with the following safety features:
Electrical Safety Interlocks
• Hood lift
• Swing-away anvil
• Shaft motion sensor
Mechanical Safety Locks
• Hood lock
• Rotor lock
• Anvil restraints
Automatic shutdown
Devices wired to common junction box
Which Brunette Chipper is Right for Your Mill?
The Brunette Drum Chippers are available in various sizes, models, and both drop feed and horizontal configurations to suit your needs. Find out which one is right for you
Brunette Drum Chipper Model 3230
This Drum Chipper is built for the production of high-quality pulp chips from oversized chips, trim blocks, and small edgings. The precision machined, high inertia rotor and the large infeed ensures high capacity and optimum chipping performance that yields a consistently uniform, quality product. The 3230 Drum Chipper comes with three or four knives and is available with a drop feed or a horizontal feed and either a bottom or rear discharge.
Technical Data:
• Rotor Size: 32″ diameter
• Rotor Speed: 650 RPM (Nominal)
• Knives 3 or 4
• Infeed Width: 30″
• Shaft End Diameter: 4.9375″
• Chip Length, adjustable: 0.625″ to 1.25″
Brunette Horizontal Drum Chipper Model 4840H
The newest Chipper in our Drum Chipper line is the 4840 Horizontal Drum Chipper. This Chipper is designed with a horizontal feed (including feedworks), and either a bottom or rear discharge. Available in two models: the 4840HV Veneer and the 4840HT Sawmill. Both models are built with the same robust features as our other Chipper models. They are available with 3,4, or 6 knives.
The 4840H4V model features an anvil that is raised closer to the rotor so that the knives hit at an angle for thinner material. This model processes veneer waste rejects, round-up, cores, and spinouts all in one machine.
The 4840HT model significantly reduces overs from trim blocks and reject boards.
Technical Data:
• Rotor Size: 48″ diameter
• Rotor Speed: 533 RPM (Nominal)
• Knives: 3, 4, or 6
• Infeed Width: 40″
• Infeed Height: 18″
• Powered Top Press Roll, with a standard 7½ HP reducer, & a hydraulic cylinder to adjust down pressure
• Powered Bottom Feed Rolls with electric motor/reducer, roll to roll chain drive,
• Bottom Feed Rolls have replaceable chromed bed plates and bolt-on side liners. Optional speed up roll
• Upper frame has a large access door for maintenance, and a bolt-on removable section for rotor access
• Upper feedworks are contained in a pivoting modular housing (removeable)
Brunette Whole Log Drum Chipper Model 6040
The Brunette Whole Log Chipper is a horizontal-feed extreme-duty machine that can process logs up to 26″ in diameter. Hydraulic-driven powered feedworks — a top pressroll and two lower bedrolls — control log feed to produce high quality pulp chips for pulp and paper mills or micro-chips consistent in thickness and size for biomass and pellet industries.
Two rotors are available for our Whole Log Chipper – the standard rotor, for up to 1″ nominal pulp chip, and our unique MicroChip rotor which is designed to produce a ¼” nominal chip. Each rotor can be outfitted with either our standard Brunette quick-change knife system or the Key Knife disposable turn-knife system.
Technical Data:
• Rotor Size: 60″ diameter
• Rotor Speed: 375 RPM (Nominal)
• Knives: 4, 6, or 8
• Infeed Width: 40″
• Infeed Height: 26″
• Pulp Chip Length, adjustable: 0.625″ to 1″
• “Micro” Chip Length, adjustable: 0.25″ to .875″
• Powered Top Press Roll has two hydraulic cylinders, hydraulic motor mounted into roll
• Powered Bottom Feed Roll has 7.5HP electric motor/reducer, and standard flex insert coupling
• Bottom Feed Roll also has replaceable chromed bed plates and bolt-on side liners
Whole Log Chipper 6040 Optional Feature
The Brunette Whole Log Chipper can be supplied in a modular format complete with infeed conveyor, chipper drive motor and hydraulic power unit, all designed on a rigid-structured, one-piece frame suitable for containerizing.
Questions?
Would you like more information about our Drum Chipper Line? Do you want to get more from your mill?
Call us at 604.522.3977 or Toll Free: 1.800.686.6679 or email us at:
Our sales team can answer all your questions. Ask us about our complete line of wood processing equipment.
This article is reprinted from our Brunette Machinery email campaign “Everything You Need to Know About Brunette Chippers” published Feb. 27, 2023
Tags: Brunette Machinery, Drum Chippers, Forestry Equipment, Forestry Industry
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Brunette Machinery’s Newest Drum Chipper — The 4840 Horizontal
Tuesday, January 2nd, 2024
We don’t need to tell you that wood processing machinery operates under demanding conditions. To produce quality pulp chips, you need machines that can handle the roughest material and deliver the highest production rates.
Today’s sawmill owners face an ever-increasing demand for capacity, efficiency and availability. They require custom solutions and rugged machines that are easy to maintain and perform well under rigorous conditions. While the purpose of a sawmill is to process softwood or hardwood logs into quality lumber, they also benefit from processing the resulting sawdust, chips and bark into additional value streams.
Brunette Machinery offers a line of Drum Chippers in various sizes and model configurations that are built to increase revenue from your residuals. With their rigid structural frame and powerful high-inertia rotor, Brunette Chippers deliver optimal performance, lower maintenance costs, and quality chips.
Our Drum Chippers produce uniform pulp chips and “micro-chips” from short material that is difficult to control, giving you access to more markets and flexibility.
Brunette Machinery 4840 Horizontal Chipper
The 4840 Horizontal is the newest Chipper in our Drum Chipper line and has the same heavy-duty fabrication as our other wood processing machines. The 4840 is available in two models, the 4840H4V Veneer (shown above) and the 4840H4T Sawmill. Both models have a horizontal feedworks and are available with either a bottom or rear discharge.
The 4840H4V model features an anvil raised closer to the rotor, so the knives hit at an angle for thinner material. This model processes veneer waste rejects, round-up, cores, and spinouts in one machine. The 4840HT model significantly reduces overs from trim blocks, reject boards and edgings.
Features:
The 4840 Horizontal Drum Chipper is built to the same exacting criteria as our other Chipper models and has the same standard features, including:
- A wide throat to accommodate large pieces such as logs, lily pads, cores, spinouts, and trim blocks.
- One-piece, tapered knives that process material across the width of the drum provide even wear and longer life.
- A rear access hood, opened with a hydraulic cylinder operated from a Hydraulic Power Unit, provides safe, easy access for knife change.
- Shear pins protect the anvil saving valuable production time and repair costs associated with tramp metal.
- The swing-away anvil assembly includes a bolt-on hardened reversible anvil.
- The rugged, stress-relieved main frame is a welded construction with steel plate reinforced bearing mounts. Heavy-duty pillow blocks support the rotor assembly.
Safety:
All Brunette Chippers have the following safety features.
Electrical Safety Interlocks
• Hood lift
• Swing-away anvil
• Shaft motion sensor
• Devices are wired to a common junction box
Mechanical Safety Locks
• Hood lock
• Rotor lock
Ask About Available Options:
The Brunette 4840H4T Chipper (shown above), like our other Chipper models, is available with optional features to customize your production line. Some of these options are:
- Pneumatic disc brakes — air adjustable, heavy-duty caliper brakes
- Screen: An optional bottom screen is available for all Brunette Drum Chippers.
- KeyKnife Uni-Ridge system: This disposable turn-knife system is an alternative to Brunette’s standard quick-change flat tapered knives.
- Guard and drive components
- Vibrating infeed conveyor
Click here for more details on the 4840H4V and 4840H4T Drum Chippers, or download the brochure here. For information on our complete line of products, visit our Equipment page.
Questions? Call our office at 604.522.3977 to speak with a member of our sales team or email: .
Tags: 4840 Horizontal Chipper, Brunette Machinery, Drum Chippers, Wood Processng Machinery
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Our Top Five Maintenance Tips To Help You Get More From Your Mill
Wednesday, November 1st, 2023
Every mill owner wants to maximize their equipment lifespan and prevent major machine crashes. They know unplanned downtime can mean heavy financial costs and lengthy production delays.
Your wood-processing machinery is a significant investment and the heart of your business. Keeping your equipment in optimum condition is fundamental to increasing your ROI and extending the life of your machines. Regular maintenance can identify potential safety problems, prevent costly breakdowns, optimize performance, and maintain product quality.
Below are our top five maintenance tips for Brunette Chippers, Grinders, BioSizers and other wood-processing machines to help you get more from your mill.
Our Top 5 Maintenance Tips
1. READ YOUR PARTS AND SERVICE MANUAL
We provide a manual that contains information about your specific machine, including safety instructions, installation and start-up instructions, maintenance & lubrication schedules, mechanical drawings, spare parts lists and more.
2. PROVIDE OPERATOR TRAINING
Ensure that operators and technicians understand the operation and safety procedures of every machine. Training should include knowledge of equipment limitations and the workings of all systems and controls. Trained operators and technicians are often the first to notice minor problems before they become major failures. Training programs also ensure that operators learn the proper usage of the machines, thereby minimizing the chance of unintentional damage.
3. PERFORM DAILY CHECKS
A daily checklist of maintenance tasks completed at the beginning or end of the workday can identify signs of wear or other minor problems that require attention. These tasks are in your Parts and Service manual. It’s a good practice to keep records of the dates/times of the completed tasks.
4. FOLLOW A LUBRICATION SCHEDULE
Proper lubrication is essential to peak machine function. Lubricant reduces friction between moving parts, protecting them from wear and tear. Monitoring and replacing your machines’ lubrication levels will significantly increase your equipment’s lifespan. Recommended lubrication schedules are found in your Parts & Service manual.
5. STOCK KEY PARTS
To increase your mill’s efficiency, Brunette recommends stocking an inventory of parts. A supply of critical spare parts can allow your team to quickly get your machine running and minimize downtime and service costs. We provide a list of spare parts you can purchase to have on hand to prevent untimely shutdowns.
PARTS & SERVICE DEPARTMENT
If you need help getting an emergency part because of a breakdown or ordering recommended spare parts, trust our team of qualified experts to get you what you need — fast!
We have a reputation for excellent customer after-sale care. Our team members are experienced professionals who take pride in providing the best customer service possible.
We want to help you get more from your mill, which means keeping your machines running at optimum performance. Our qualified service technicians are available to answer your questions or provide you with technical service, either remotely or on-site.
Our technicians are OEM factory-trained. Our on-site service includes complete machine inspections, detailed follow-up reports and preventative maintenance recommendations. We can provide remote training and instructional sessions if required.
Explore our Parts & Service page on this site for details, order forms, service bulletins, maintenance sheets and more, available for download.
To contact our Parts & Service Department during regular business hours, please call 604.522.3977 or toll-free 1.800.686.6679 — we are ready to assist you. You can also reach us online through our online contact form or email us at .
If you require our Prince George facility, please call 250.563.0596 or email Prince George office or the Prince George shop.
Our Parts & Service Department has a 24-hour emergency contact for unexpected after-hours incidents that require immediate attention. To reach us in an emergency, call 604.813-3394
Maintaining your wood-processing equipment is critical to your bottom line. By developing a regular maintenance schedule and following our maintenance tips and the guidelines in your parts and service manual, you can expand the working life of your machinery, maximize the efficiency of your operations and eliminate costly downtime.
QUESTIONS?
Want to know more about our wood-processing systems including rebuilds, upgrades, and our innovative product line, please contact our sales team.
This article is reprinted from the Brunette Machinery email campaign “Our Top Five Maintenance Tips To Help You Get More From Your Mill” published Oct. 25, 2023
Tags: Brunette Machinery, Chippers, Drum Chippers, Forestry Equipment, Maintenance Tips, Wood Chips
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