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B Series Mechanical Box Lift


The B Series Box Lift vertical reciprocating conveyor (VRC), from PFlow Industries is ideal for automatically moving boxes, totes, cartons, sacks, cases and individual parts, with ease and speed, to mezzanines or between floors and conveyor levels.

Similar to a commercial dumbwaiter, and designed for quick and easy installation, PFlow’s B Series Box Lift’s sections are shipped pre-wired with quick-connect wiring. Unlike a commercial dumbwaiter, the B Series Box Lift’s carriage, or platform, is lifted/lowered by dual roller chains connected to a mechanical motor/gear reducer. The motor/gear reducer is located in an easy-to-access location at the base of the unit so that maintenance can be performed quickly and easily, reducing downtime and saving time and money.

B Series Box Lift Overview

  • Lifts loads up to 500 lbs in two-level applications
  • Carriage size is 3’ x 3′
  • Vertical rise to 15’9″
  • Unit is positioned to load/unload at an ergonomic
    30″ above the floor
  • Standard travel speed is 30 feet per minute
  • Unlimited, continuous cycles
  • Indoor use only
  • Lifetime structural warranty
  • Conforms to ASME B20.1 Safety Standards

Advanced safety features are built into each B Series Box Lift

  • Spring-loaded dual safety pins prevent uncontrolled carriage descent in the event of chain failure
  • Electro-mechanical door interlocks prevent opening carriage gate when lift is in motion
  • Full-height safety enclosure keeps loads secure
  • Motor overload protection prevents excessive current draw

For lighter package loads, see our DB Series package handling VRC with a lifting capacity of up to 100 lbs.

Features & Benefits

Vertical Lift Safety​

PFlow’s R&D department is committed to continuous improvement and rigorous research and testing, to ensure the safety and efficiency of our material lifts. The result is a highly durable industrial package handling lift designed with many safety features to protect workers and materials.

Product Specifications

Best for

Moving boxes, packages, cases, crates, and other cargo in production lines, manufacturing plants, storage facilities, and more


Lift loads of up to 500 lbs

Carriage size

The standard carriage size is 3’x3’

Travel Speed

Standard travel speed is 30 FPM


Continuous use and unlimited cycles

Safety Gates

Standard units include interlocked swing gates and full-height enclosures on all sides

Standard power requirements are 230V single-phase or 230V/460V 3-phase. 
Low voltage controls.

Watch Our DB Series in Action

Why Choose PFlow?​

At PFlow, we back up our products with top-notch customer service, and we embrace the concept of “service after the sale” to ensure that you’re never alone in keeping your PFlow lift running optimally. 

We offer a wide range of services, including pre-installation planning, installation, start-up services and troubleshooting. Our highly knowledgeable engineers, field service team, and customer service reps are always ready to provide expert help. Get in touch with us below to learn how we can solve your toughest material-moving challenges.

Frequently Asked Questions

B Series lifts from PFlow are mechanical. The carriage is lifted and lowered by dual roller chains connected to electric motor-reducer assembly.  One of the main differences between the two is that mechanical lifts allow for unlimited / continuous cycle use, which is key to optimizing your operation. Learn more about the other differences between hydraulic and mechanical lifts.

We incorporate a wide range of safety features into our B Series lifts, such as electromechanical safety gate interlocks, motor drive assembly with a brake and gear motor reducer, chain jam sensor, spring-loaded safety pins and full height enclosure panels.