Utilizing Slope and Load for Optimal Gravity Conveyor Performance

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Boxes on a gravity roller conveyor

By Scarlett Barnes

Gravity conveyors are widely used in warehouse logistics to move products smoothly and efficiently without the need for external power. Cost-effective and low-maintenance, these systems are easy to implement and customize. In order to ensure efficiency and maximize productivity, two factors must be considered when implementing a gravity conveyor system: slope and load.

Determining Slope

The primary function of slope is to harness the power of gravity in order to move materials. Installing gravity conveyors to the proper slope is essential for ensuring the products move in a consistent and controlled manner – without stalling or excessive accelerations. 

At a minimum, slope angle for most gravity conveyors begins at 5°. However, the correct incline angle depends on several factors, including product load, flow control, and conveyor type. Roller and skatewheel are the two main types of gravity conveyor and their incline requirements differ: skatewheel conveyor systems typically need less slope than roller systems, since the wheels require less force to initiate movement. Similarly, the flow and layout of the facility are important to consider. Incline requirements will change depending on the length and height of the conveyor system, as well as if there are any curves or leveling points as they reduce flow. Lastly, the desired outcome of the product must be factored in. For example, if the desired flow is to allow products to accumulate at the terminal point, then more slope will be required.

In order to fine-tune slope angles, operators can adjust the supportive stands and brackets as needed. This allows for flexibility and ensures the system can be effective across a wide range of applications. 

In order to fine-tune slope angles, operators can adjust the supportive stands and brackets as needed. This allows for flexibility and ensures the system can be effective across a wide range of applications. For proper setup, consider using adjustable gravity conveyor stands & supports to modify the incline and ensure smooth product flow.

Factoring in Load

Load refers to the products being transported on the conveyor system. Item specifications that need to be considered include weight, shape, and packaging material. 

Weight: Heavier items often need a gentler slope since their greater weight builds momentum, causing the items to move quicker. Conversely, lighter loads typically require more slope.

Shape: Determining the product length to height ratio is important, as taller products are prone to tipping. Similarly, irregularly shaped items can often be more difficult to move, and thus require different slope considerations.  

Packaging: The way products are packaged plays a significant role in how they will move along the conveyor system. Surface characteristics–such as whether the packaging is rigid or flexible–friction levels, weight distribution, and the overall size and shape of the packaging must be considered as the variables can either accelerate or slow down the transport process. Below is a general guide as to how much slope is recommended based on packaging material:

These characteristics will also help determine what type of gravity conveyor is best suited for the items being moved. Skatewheel loads typically need to be lightweight and have a smooth, solid surface. Rollers can accommodate heavier, irregularly shaped loads more effectively.

Balancing Slope and Load for Optimal Performance

Calculating the proper slope takes trial and error. When implementing gravity conveyor systems, the slope should be well tested prior to full operation, as the required slope may differ from initial calculations. Since gravity conveyors are simple and flexible systems, they can be easily adjusted until the product flow is optimized. As products, packaging, or environments change, these systems can be further adjusted to account for any of these variables. 

Understanding the interplay between slope and load is critical in optimizing product line efficiency. Solution specialists at SJF are well versed in determining and carefully calibrating proper slope to ensure their clients systems are executed effectively. For businesses looking to maximize efficiency, custom gravity conveyor solutions and system design can help tailor conveyor setups to specific operational needs. When done properly, gravity conveyors provide an efficient, reliable, and safe solution for material handling.

More Information

If you have questions, want to receive more information, or would like a quote you can contact SJF’s Solutions Specialists at support@sjf.com or by calling 320-485-4974.

Effortless Efficiency: The Role of Gravity Conveyors in the Modern Warehouse

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Gravity Conveyor

By Scarlett Barnes

Gravity conveyors have had a long-standing presence in warehouse logistics, and for good reason. These easy-to-implement systems are not only affordable, but are also versatile across many different industries without the need for mechanical power. Starting in January 2025, SJF will be an official supplier of Roach Conveyors – one of the leading American-made manufacturers of gravity conveyors. This article will cover the basics of gravity conveyors – how they work, their application, and the benefits in hopes that it can help you determine if this is the right type of system for your company’s needs. 

How Gravity Conveyors Work

A gravity conveyor is a non-powered material handling system that moves product using the natural force of gravity. Slope is key in the design and functionality of the overall system. Most systems are designed with a slight decline that is dependent on the product type, product weight, and system length. Flat systems can also be developed using a person pushing the material as the momentum to help the product slide down the line. 

There are two main types of gravity conveyor styles: Roller and Skatewheel

Gravity roller conveyors use tube-like cylinders that rotate so that items can pass over them freely. They come in a wide variety of materials and diameters, making them customizable for anything from light to heavy duty items. To ensure proper support and movement, systems should be designed with a minimum of three rollers under the product at any given time. 

Gravity roller conveyor photo

Gravity skatewheel conveyors use individual wheels mounted on axels to allow smooth product movement. They can be designed with a variety of different materials, but are best suited for lightweight applications. To ensure proper support and movement, systems should be designed with a minimum of 10 wheels under the product at any given time. 

Gravity skatewheel conveyor photo

Application

There are a variety of industries that can benefit from the implementation of gravity conveyors, including fulfillment centers, manufacturing, and even cold storage. These systems can handle a wide array of loads from light to heavy – especially if the items have a firm flat bottom, such as cartons, totes, cases, skids, drums, and more. Gravity conveyors are also flexible and adaptable for a multitude of uses, including production, distribution, shipping and receiving, as well as assembly lines. These conveyors can be installed with different specifications. Their sizes, lengths, widths, heights, and material can all be altered, as well as their method of mounting. They can be mounted on the floor, supported by stands, or even installed in rack systems. All of this together allows for complete customization, tailored to your company’s needs. 

Benefits

Overall, gravity conveyors are a simple and cost-effective solution to warehouse logistics that can provide a number of benefits. 

  • Minimal Investment: Since they rely on gravity there is no need for expensive motors or increased electricity usage. They are easy to install and operate, which keeps start-up and training costs low.
  • Efficiency: Gravity conveyors allow for a swift movement of product with minimal human intervention. This simplifies the workflow, reduces delays, and enhances productivity. 
  • Maintenance: These systems are incredibly easy to maintain. Since there is no motor there is a low risk for mechanical breakdowns. They are made of simple parts that are durable (usually aluminum or steel), easy to clean, and easy to replace.  If parts do break, replacements are typically accessible and made out of affordable material, rarely requiring professional service to fix. 
  • Ergonomic Improvements: Employees also receive benefits from the advent of gravity conveyors. They reduce the need for manual lifting and carrying, which in turn reduces injury risk and worker fatigue. Overall, this makes for a safer work environment.

As the demand for efficient material handling solutions grows, adoption of gravity conveyors is expected to rise. These systems are an economical way to quickly optimize your warehouse logistics while providing a number of additional benefits to the overall operation.

We at SJF recognize the value that these conveyor systems bring to our clients and are proud to offer new gravity conveyor and used gravity conveyor solutions, as well as system integration services for warehouse design and implementation. We’re excited to collaborate with Roach Conveyor and other leading vendors to provide high-quality products that meet our customers’ needs — now and in the future.

If you have questions, want to receive more information, or would like a quote you can contact SJF’s Solutions Specialists at support@sjf.com or by calling 320-485-4974.

This is Part 1 of Our Series on Gravity Conveyor.
For Part 2, read Utilizing Slope and Load for Optimal Gravity Conveyor Performance.

SJF Material Handling Announces Appointment of New Senior Leaders, Frank and Sam Sterner

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SJF’s new President and Vice President leaders committed to upholding the company’s legacy of high-quality service.

SJF Material Handling logo

Winsted, Minnesota, July 25, 2024 — SJF Material Handling , a leading provider of turn-key warehouse solutions, announces the appointment of senior leaders Frank and Sam Sterner. SJF Material Handling has a 45-year legacy of providing end-to-end warehouse system integration services. With the introduction of these new leaders, the company will continue expanding its relationships with companies of all sizes across the US, Canada, Puerto Rico, and Mexico.

In today’s fast-moving world, warehouse solutions are critical for ensuring the timely, accurate delivery of goods. The pandemic highlighted the need for effective, tech-enabled technologies globally as supply chain issues appeared overnight. SJF Material Handling is a premier provider of futureproof warehouse solutions, with a specific emphasis on integration, automation, and robotics services.

The company has accumulated countless testimonials for its excellent customer service, product knowledge, and professionalism. SJF Material Handling has retained a competitive advantage in the market due to its flexibility toward customer needs. After recognizing that technology was essential for helping customers’ businesses thrive, the company prioritized developing its offerings. As a new President and Vice President overtake leadership, the pair are equally committed to increasing customer satisfaction while investing in cutting-edge technologies.

Frank Sterner, the newly appointed company President, has served SJF Material Handling for over 20 years. The family-owned business was created by his father, Jerry Sterner. Alongside his entrance, Frank’s son Sam is now serving as Vice President. This father-son duo will uphold SJF Material Handling’s family values while spearheading personalized, innovative services.

SJF Material Handling is exploring new avenues for improving the effectiveness of its storage, sortation, and conveyor systems to ensure that customers continue receiving tailor-made solutions. Alongside these developments, the company hopes to support more businesses by continuing to provide services outside of automation and integrations.

“The SJF team is excited to enter a new chapter of business that holds immense potential for organizational growth,” says President Frank Sterner. “Sam and I are grateful for the opportunity to guide SJF Material Handling to new heights and equip our customers with the equipment, services, and support they need to prosper.”

For more information about SJF Material Handling, please visit www.sjf.com.

Contact Information:
SJF Material Handling Inc.
Denise Rosenau, Director of Marketing
(800) 598-5532
drosenau@sjf.com
Website : www.sjf.com

About SJF Material Handling:
Founded in 1979, SJF Material Handling is well known as an industry leader in warehouse system integration, design and layout, automation and robotics, and the sale of new and used warehouse equipment such as pallet racking, cantilever racks, and conveyor systems. SJF has been serving clients since 1979.

A Simple Guide to Pallet Racking Options

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Large warehouse with various types of pallet racking storage.

In the world of warehouse management, pallet racking plays a pivotal role. It’s the backbone of industrial storage, optimizing space and efficiency.

But with a myriad of options available, how do you choose the right one? This guide aims to simplify that decision. We are also always available to answer questions or to help you decide what’s right for you. Contact a SJF Solutions Specialist at (320) 485-4974 or email support@sjf.com, or fill out our simple online form. Our advice is always free.

We’ll delve into the different types of pallet racking systems, from selective to teardrop, and drive-in to cantilever. Each type has its unique benefits and considerations.

We’ll also explore factors to consider when selecting a system. These include load capacity, warehouse layout, and inventory accessibility.

Finally, we’ll touch on the future of pallet racking in warehouse storage. As technology evolves, so do the possibilities for more efficient and effective storage solutions.

So, whether you’re a warehouse manager, a logistics professional, or a business owner, this guide is for you. Let’s dive in and explore the world of pallet racking options.

Understanding Pallet Racking and Its Importance

Pallet racking is a storage system designed to hold materials on pallets or skids. It’s a crucial component of warehouse storage, enabling businesses to store more in less space.

The importance of pallet racking extends beyond space optimization. It also enhances efficiency, allowing for quicker access to stored items. This can significantly improve inventory management and order fulfillment processes.

Types of Pallet Racking Systems

Teardrop Pallet Rack for Putco

There are several types of pallet racking systems, each with its unique features and benefits. The choice of system depends on the specific needs of a warehouse, including the type of goods stored, space availability, and inventory management requirements.

Selective Pallet Racking

Selective pallet racking is the most common type of racking system. It allows for the direct access to all pallets, making it a versatile choice for a wide range of industries.

This system is ideal for warehouses with a high variety of SKUs and lower volumes of each. It’s also suitable for both FIFO (First In, First Out) and LIFO (Last In, First Out) inventory management.

Teardrop Pallet Racking

Teardrop pallet racking is named for the teardrop-shaped holes on the upright frames. This design allows for easy assembly and reconfiguration, making it a flexible option for dynamic warehouse environments.

The system is compatible with various brands, offering a cost-effective solution for businesses looking to expand or modify their existing racking.

Drive-In and Drive-Through Racking

Drive-in and drive-through racking systems are designed for high-density storage. They allow forklifts to drive directly into the racking, enabling more efficient use of space.

Drive-in racking is ideal for LIFO inventory management, while drive-through racking supports FIFO management. These systems are best suited for warehouses with large quantities of similar products.

Push-Back Racking Systems

Push-back racking systems allow pallets to be stored in depth, increasing storage density. When a new pallet is added, the existing ones are pushed back.

This system is a form of high-density storage that allows for both selectivity and efficient use of space. It’s ideal for LIFO inventory management.

Pallet Flow Racking

Pallet flow racking, also known as gravity flow racking, uses a first-in, first-out storage system. Pallets are loaded onto one end of the rack and move towards the other end due to gravity.

This system is ideal for high-volume, high-turnover businesses that require efficient stock rotation. It’s particularly useful for perishable goods that need to be moved out quickly.

Cantilever Racking

Cantilever racking is designed for long or bulky items that don’t fit on regular pallets. The system features arms extending from a single column, allowing for easy loading and unloading.

This type of racking is commonly used in industries dealing with timber, pipes, or other long materials. It offers a flexible storage solution that can be adjusted to accommodate different load lengths.

Factors to Consider When Selecting Pallet Racking

Choosing the right pallet racking system is crucial for efficient warehouse operations. Several factors come into play when making this decision. These include load capacity, warehouse layout, and inventory management needs.

empty warehouse

Load Capacity and Material Handling

The load capacity of a racking system is a key factor to consider. It’s important to choose a system that can safely support the weight of your goods. The type of material handling equipment used also influences the choice of racking. For instance, some systems are designed to accommodate forklift access.

Warehouse Layout and Space Utilization

The layout and available space in your warehouse significantly impact the type of racking system you can install. Some systems, like VNA (Very Narrow Aisle) and drive-in racking, are ideal for warehouses with limited space. Others, like selective racking, require more aisle space for easy access to pallets.

Inventory Accessibility and Management

Your inventory management strategy also influences the choice of racking. For instance, if you operate on a FIFO basis, a pallet flow racking system would be suitable. On the other hand, if you use a LIFO system, push-back or drive-in racking might be a better choice.

Pallet Racking Accessories and Customization

Pallet racking systems can be enhanced with various accessories to improve functionality and safety. These accessories can also help customize the system to better suit your specific needs.

Some common pallet racking accessories include:

Safety First graphic

Safety and Compliance in Pallet Racking

Safety is a paramount concern in any warehouse setting. Pallet racking systems should be designed and installed with safety in mind, adhering to industry standards and regulations.

Regular inspections and safety audits are crucial to ensure the integrity of the racking system. Training staff on safe racking practices can also help prevent accidents and maintain a safe working environment.

The Future of Pallet Racking in Warehouse Storage

The future of pallet racking is likely to be influenced by advancements in technology. Automated storage and retrieval systems (AS/RS) and software for managing pallet racking systems are already making an impact.

Sustainability is another key trend, with more businesses considering the environmental impact of their racking materials and seeking out sustainable solutions.

Conclusion: Optimizing Your Warehouse with the Right Pallet Racking

Choosing the right pallet racking system is crucial for optimizing your warehouse. It can enhance storage capacity, improve inventory management, and boost operational efficiency. Always consider your specific needs, safety standards, and future growth plans when selecting a pallet racking solution.

Industry Insider Sales – May 16, 2024

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SJF Material Handling Marks 45 Years of Innovation and Excellence

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SJF Material Handling logo

Winsted, MN (May 15, 2024) – SJF Material Handling, Inc. is proud to announce its 45th anniversary. Founded in 1979, SJF evolved into an award-winning full-service turnkey provider of warehouse solutions from its originas one of the largest stocking distributors of used material handling equipment. While still active in the used equipment sector, it is SJF’s integration and automation services, combined with partnerships with some of the industry’s best manufacturers of conveyor systems, robotics, AMRs, scanning, and storage solutions, that provided for SJF’s success and growth. Driven by technological advancements within the industry and its commitment to offering its customers superior service, SJF serves companies from startup to Fortune 500 across the United States, Canada, Puerto Rico, and Mexico.

“Reflecting on the past 45 years, we are immensely proud of what we’ve achieved and the relationships we’ve built,” said Frank Sterner, CEO of SJF. “Our journey from used equipment seller to a comprehensive solution provider in material handling reflects our dedication to evolving with the industry and our clients’ needs.”

Embracing technology has been a cornerstone of SJF’s success in its mission to better serve clients nationwide. From building one of the industry’s first websites (SJF.com) in 1995, SJF continues to make the customer experience easier with the addition of its online store, which offers an ever-growing selection of new material handling products. SJF’s website also offers its customers volumes of information and the ability to request quotes, chat with a solution specialist, or just ask questions.

As SJF Material Handling looks to the future, the company remains committed to providing top-tier material handling solutions and continuing its tradition of excellence and innovation.

For more information about SJF Material Handling, please visit www.sjf.com.

Contact Information:
SJF Material Handling Inc.
Denise Rosenau, Director of Marketing
(800) 598-5532
drosenau@sjf.com
Website: www.sjf.com

About SJF Material Handling:

Founded in 1979, SJF Material Handling is well known as an industry leader in warehouse system integration, design and layout, automation and robotics, and the sale of new and used warehouse equipment such as pallet racking, cantilever racks, and conveyor systems. SJF has been serving clients since 1979.

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