PFlow Industries, Inc.
Since 1977, PFlow has been solely devoted to the design and manufacturer of vertical reciprocating conveyors (VRC’s) material handling equipment, systems, and specials. As the VRC pioneer, PFlow has led the industry from the start.
6720 N. Teutonia Avenue Milwaukee, WI, 53209 USA
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VRC & Lift FAQs

What Type of Vertical Conveying Systems Does PFlow Offer?
Hydraulic lifts and mechanical lifts. Both straddle and cantilever are available, along with four post and modular designs.

Where Would a Hydraulic or Mechanical Lift be Used?
The hydraulic VRCs are the least expensive to purchase and install. The PFlow D Series or PFlow 21 Series would be specified for two-level applications when the load capacity is not greater than 4,000 – 6000 lbs, the carriage sizes range from 6’ x 6’ up to 12′ x 10′ and the vertical rise is 22′ or under.

A mechanical lift is used where larger carriages are needed, the vertical rise is greater than 22′, or requires three or more level stops.

We suggest discussing your application with a PFlow representative or authorized dealer to ensure the proper lift is specified.

How is the Lift Supported?
The carriage is supported by wide flange columns. The columns need to be lagged to a ground level or surface. The columns are required to be braced at the upper levels and typically attached to the floor’s support structure.

What is the Lowered Height of the Carriage?
The profile of a typical carriage is 3″ to 10″ when mounted on the surface. When a flush first level transition is required, a pit is needed; ranging from 4″ to 12″ and up.

What Size Lift Can Be Fit Into an Opening?
This varies by model. Please refer to CAD DRAWINGS located on the Products Pages for exact dimensions.

How Much Room Does the Power Unit Require?
The motor pump for a typical hydraulic lift is 20″ wide x 30″ long x 20″ high. It can be mounted anywhere within 15′ of the lift. On a mechanical lift, the power unit is located at the top of the guide rail columns. It requires approximately 3′ of space above the carriage load height.

What is a Mezzanine Backstop Safety Panel?
The MBSP is a fixed guard used at the upper level (s) where there is a snap chain or drop bar, but no railing on the backside of the carriage. Used primarily on two or 90° load patterns for an edge of mezzanine application. The panel attaches to the guide rail columns of the lift at the upper level. Its purpose is to enclose the back of the carriage so that there is no possibility of someone walking onto the lift carriage and falling off and to help prevent product (s) from falling while loading at the upper level.

Are Safety Gates and Enclosures Required?
To meet OSHA, ANSI, ASME and common sense standards; anywhere a person can come in contact with the lift, an enclosure guard is required. Where the lift is to be loaded, a safety gate with an interlock is required.

What is an Interlock?
An interlock prevents a gate from being opened unless the lift is present at that level. The interlock also prevents the lift from running when the gate or door is not closed.

Are Controls Provided?
All electrical components needed to make the lift function are included with the lift. The standard controls are self-maintained contact controls. Constant pressure or dead-man controls are also available.

What is the Lead-Time for a Lift?
Approval drawings are typically prepared and sent out within two-three weeks after the receipt of an order.
Standard lifts are typically shipped six to ten weeks after the signed approval drawing is returned to PFlow.

How is the Lift Shipped?
The lift is typically shipped via common carrier. The major components in the shipment:

  • Carriage
  • Guide columns approximately 20′ (dependent on vertical rise and splicing)
  • Parts crate
  • Drive base (mechanical) or power unit (hydraulic)
  • Control panel

How Difficult is Installation?
The basic steps for installing a lift:

  1. Columns are set in place and temporarily braced
  2. The carriage is placed between the columns and attached
  3. For mechanical lifts, the drive base must be raised to the top of the columns and attached
  4. Gates are assembled, set in place, anchored, and braced
  5. Enclosures are assembled, set in place, and anchored
  6. Wiring of electrical components

What Maintenance is Required to Maintain Peak Performace?
Standard preventative maintenance of the lift is well within the capabilities of the plant maintenance personnel.

  1. Inspect the lift on a quarterly basis
  2. Lubricate lift parts as required