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Over-N-Under Conveyors

Over-N-Under Conveyors

Over-N-Under Conveyors

Product catalog summary
Overview: The document provides technical specifications and descriptions of the Unibilt® and Over-N-Under® conveyor systems by Jervis B. Webb Company. It highlights the features, components, and types of conveyors available, aimed at aiding engineers in preliminary evaluations.
Enclosed Track: The enclosed track is made from high-strength WebbAlloy II steel, offering a lighter weight and up to 26% stronger yield strength than carbon steel. It provides good corrosion resistance and high rigidity over long spans.
Universal Link Chain: This chain features symmetrical chain pins and alternating vertical and horizontal wheels, providing flexibility and reducing friction. It is available with steel or nylon wheels for various applications.
Caterpillar Drive Unit: The drive unit includes a compact, high-efficiency motor/reducer combination that reduces noise and maintenance while improving overload cut-off accuracy. It is designed for maximum flexibility in enclosed track power requirements.
Rigid “H” Attachment: This attachment engages the load wheel axle with a scissor-like action, maintaining perpendicularity to the chain. It has a load capacity of 75 lbs.
Over-N-Under® Conveyors: These conveyors are designed for economical storage and transfer of materials in a closed-loop configuration. Four types are available:
  • Tandem Over-N-Unders: Side-by-side design for increased stability and higher load capacities.
  • Gravity Flow Over-N-Unders: Utilizes product weight and pitching for parts forwarding, offering an inexpensive solution for storage and accumulation.
  • Powered Over-N-Unders: Uses a standard Unibilt drive for flexible movement over aisles and obstacles, not restricted to straight loops.
  • Power & Free Over-N-Unders: Provides a cost-effective solution for storage and accumulation, using a two-track system for power chain and free trolleys.
Certifications: The company is ISO 9001:2000 certified, ensuring quality management standards.
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Catalog excerpts

Over-N-Under Conveyors-1

Some of the many quality components available... Enclosed Track This square tubular section is roll-formed from highstrength WebbAlloy II steel. It features lighter weight, yield strength up to 26% stronger than carbon steel, good corrosion resistance, and high rigidity over long spans. Universal Link Chain Unibilt link chain features symmetrical chain pins, alternating vertical load carrying and horizontal lateral-guide wheels. This gives maximum flexibility in all directions to help reduce friction and promote long wear life. Each pitch features a symmetrical chain pin joint and is easily assembled. With a steel wheel or nylon wheel option, this link chain can meet many needs. Caterpillar Drive Unit Unibilt drive units feature a compact, high-efficiency inverter duty motor/reducer combination that sends more power directly to the drive. This configuration immediately reduces noise and maintenance, while improving overload cut-off accuracy and durability. Specially developed for Unibilt conveyors, the caterpillar drive units are designed to provide maximum flexibility for all enclosed track power requirements. Many outstanding features are available that are not found on any other single compact unit. Rigid “H” Attachment The Rigid “H” Attachment engages the load wheel axle with a scissor-like action. This attachment remains perpendicular to the chain. Load capacity is 75 lbs. ISO 9001:2000 CERTIFIED Webb has a global network of distributors and representatives to serve you. World Headquarters 34375 W. Twelve Mile Rd., Farmington Hills, MI 48331-5624 USA 1-888-UNIBILT FAX: 1-248-553-1253 E-mail: [email protected] www.jervisbwebb.com Data given in this publication are intended only to aid the engineer in preliminary evaluations and are subject to change without notice. Unibilt® and Over-N-Under® are registered trademarks of the Jervis B. Webb Company. Bulletin #8089 032307 ©2001 Jervis B. Webb Company Maximize the use of your valuable floor space

 Open the catalog to page 1
Over-N-Under Conveyors-2

Unibilt When Webb developed its Unibilt Over-NUnder conveyor concept, the idea behind it was to provide more economical storage and/or transfer of materials over designated distances in a closed-loop configuration. Webb manufactures four types of Over-N-Under conveyors to meet different needs. Over-N-Under Conveyors Gravity Flow Over-N-Unders rely on product weight and pitching of the Over-N-Under for parts forwarding. The high end of the conveyor is the load end and the low end is the unload end. Unloading parts creates an unbalanced load across the chain, which causes the remaining parts to...

 Open the catalog to page 2
Over-N-Under Conveyors-3

Unibilt When Webb developed its Unibilt Over-NUnder conveyor concept, the idea behind it was to provide more economical storage and/or transfer of materials over designated distances in a closed-loop configuration. Webb manufactures four types of Over-N-Under conveyors to meet different needs. Over-N-Under Conveyors Gravity Flow Over-N-Unders rely on product weight and pitching of the Over-N-Under for parts forwarding. The high end of the conveyor is the load end and the low end is the unload end. Unloading parts creates an unbalanced load across the chain, which causes the remaining parts to...

 Open the catalog to page 3
Over-N-Under Conveyors-4

Some of the many quality components available... Enclosed Track This square tubular section is roll-formed from highstrength WebbAlloy II steel. It features lighter weight, yield strength up to 26% stronger than carbon steel, good corrosion resistance, and high rigidity over long spans. Universal Link Chain Unibilt link chain features symmetrical chain pins, alternating vertical load carrying and horizontal lateral-guide wheels. This gives maximum flexibility in all directions to help reduce friction and promote long wear life. Each pitch features a symmetrical chain pin joint and is easily assembled....

 Open the catalog to page 4
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.