Processing equipment service and support
The support of our products is a big reason whey Olivers sold in the 1930s are still in use today.
Oliver Manufacturing provides parts, maintenance, troubleshooting, refurbishing, training, and technical support for Oliver processing equipment. From routine preventive maintenance and replacement parts to operator training and comprehensive equipment refurbishment, our team helps processors keep equipment performing reliably throughout its service life.
Your Oliver machine is the lifeblood of your processing operation. We keep detailed records on nearly every Oliver ever built, which means we’re your best resource to repair, maintain, and upgrade your equipment. Our engineering and manufacturing teams can service machines far outside the warranty period.
Genuine replacement parts from a large in-stock inventory, a fast order and shipping system, meaningful technical support and professional engineering and installation help from the best distributing dealers in the business. Many parts orders ship the same day.
We stand behind every Oliver gravity separator, sizer, destoner, and fluidized bed dryer no matter how old it is, whether in warranty or out.
Our equipment lasts for decades, and that’s attributed to quality engineering and construction. To keep your gravity separator or destoner operating at peak efficiency, it still requires regular machine maintenance.
It’s a great idea to perform equipment maintenance prior to the start or at the conclusion of processing season to make certain that your equipment is ready to deliver when you need it the most.
Oliver has the resources to do just that:
• In-shop or on-site options
• Seasonal maintenance plans
• Online & phone support
• Full line of equipment
• Operating specifications
• Manuals & instructions
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Automation refit
Oliver’s factory upgrade kit* brings full automation to gravity table adjustment, operation, and cleanout. Programmable logic controls, electronic controls, and hydraulic sensors provide greater precision and repeatability, helping operators maintain consistent separator settings and performance from run to run.
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Refurbishing service
When your gravity separator or destoner carries the Oliver name, you can expect decades of reliable, durable performance. As components wear, the same skilled technicians who build new Oliver equipment can remanufacture or replace worn parts, restoring your machine to dependable, factory-level performance.
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Training & education
Equipment often serves multiple generations, but the knowledge needed to operate it effectively can fade over time. Employee turnover and seasonal staffing compound the problem, causing maintenance, best practices, and settings to vary between operators—costing you time, productivity, and profit.
Frequently asked questions about Oliver support
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Oliver equipment is capable of processing a wide variety of products in the agriculture, industrial, mining, recycling and beyond. For example, vegetable, flower, grass, grains, and row crop, as well as corn, beans, coffee, nuts, and many specialty crops, glass, metal, rubber, wood chips.
Product size requirements vary by application. Contact our team to discuss your specific product and processing goals.
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The best way to evaluate a solution is through testing.
Three principles of separation guide our recommendations
Particles of the same size but differing slightly in density can be separated.
Particles of the same specific density but differing in size will be graded according to the size of the particles.
Particles differing in specific densities and differing in size will not be effectively separated.
To determine the best solution for your application, we offer sample testing in our laboratory located in La Junta, Colorado. Our team will review results with you and recommend the equipment and settings best suited to your operation.
To get started, complete our Sample Test Request Form.
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Choosing the right machine starts with understanding your operation and objectives. Our team will help you identify the best solution based on:
Required throughput or capacity
Product type and characteristics
Processing goals (separation, destoning, sizing, drying, sorting, cleaning, or treating)
Available floor space
Desired level of automation
Future growth plans
Not sure where to start? Contact our team and we'll help guide you through the selection process. You can also explore our machine models and capacities on our Products page.
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Purchasing Oliver equipment is the beginning of a relationship, not the end of a transaction. For nearly a century, we have had skin in the game. As a family owned company now led by the fourth generation working alongside the fifth, we take pride in knowing our grandfathers name is on every machine we build. Our success is directly tied to the success of the people who trust us with their business.
Over the years we’ve overcome many of the same challenges our customers have, economic downturn, changing markets, supply chain disruptions, and industry shifts. Through it all, we’ve had the opportunity to adapt, innovate, and invest in our people and products, adding value to our customers processing solutions.
People choose Oliver because they want more than a machine, they want a partner they can rely on. Many of our customers are operating Oliver equipment that has been running for decades, supported by the same company that built it. When you choose Oliver, you're choosing craftsmanship, high quality components, experience, and a team that stands behind its work long after the sale is complete. That's how we've earned the trust of generations of customers, and it's how we intend to earn yours.
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When making an investment it depends on several factors, including machine type, capacity, level of automation, added features, and customizations.
Generally, larger-capacity machines and advanced automation packages require a greater investment, while smaller systems offer a more economical entry point.
Purchasing an Oliver is an investment for your future.
For budgetary pricing or a customized quotation, please contact our sales team or connect with your regional sales representative.
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Every Oliver machine is built to order and configured to meet the needs of your operation.
Lead times vary based on machine type, production schedules, and order volume. Most orders ship within approximately 8–14 weeks, although larger projects or multi-machine orders may require additional time.
For the most current lead time information, please contact our sales team.
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Oliver offers support before, during, and after installation.
Our service team provides:
Commissioning and startup assistance
Preventative maintenance programs
Equipment inspections
Troubleshooting support
Remote technical assistance
Upgrades and retrofit services
On-site service visits
On-site & online training
New equipment includes a one-year warranty as outlined in Oliver's Terms and Conditions, which are provided at the time of order confirmation.
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Our goal is to keep your operation running with minimal downtime. Olivers top priority is to maximize your uptime, we will ensure to rush your parts if you’re experiencing downtime.
Many replacement parts are stocked and can ship within 3–7 business days. Orders received early in the day are often shipped the same day when inventory is available.
Our experienced parts and technical support teams can assist with troubleshooting, parts identification, maintenance questions, machine optimization and repair recommendations. We strive to respond to customer inquiries as quickly as possible, although response times may vary during periods of high demand.
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Oliver equipment is available in a wide range of capacities, from laboratory and pilot-scale machines to high-capacity commercial systems processing many tons per hour. Actual throughput depends on several factors, including the product being processed, moisture content, material cleanliness, desired separation quality, and machine configuration.
When evaluating capacity requirements, it's important to consider not only the volume of product you need to process, but also the level of separation performance required. Higher throughput rates may affect separation quality, while lower throughput rates can often improve precision and recovery.
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While every manufacturer has its strengths, Oliver has built its reputation on delivering reliable performance, long-lasting equipment, and exceptional customer support.
We design, build, and test our machines in-house and continue to support equipment that has been operating for decades.
When comparing suppliers, we encourage customers to look beyond the initial purchase price and consider factors such as separation quality, durability, service support, and total cost of ownership.
Oliver Manufacturing. Almost a century of innovation.
For nearly a century, Oliver Manufacturing has led the way as a gravity separator manufacturer with high-quality products that businesses in the seed, nut, coffee, lumber, recycling, and mining industries can rely on. We’ve always been committed to combining durability and efficiency in our equipment, and these gravity separators are no different. Contact us today to learn more about how these machines can save you time and money!
Give your Oliver a new beginning
Your Oliver may have years—or decades—of productive life left. Talk with the Oliver service team about your machine’s condition, current performance, and available refurbishment options. We’ll help determine whether repair, refurbishment, upgrades, or replacement makes the most sense for your operation.