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Dual Mast Mezzanine Lift (Vertical Reciprocating Conveyor) provides
extra strength for heavy loads up to 12,000 pounds and offers a variety
of larger platform carriage sizes up to 12' x 12'. This lift is great when
overhead space is limited because it only requires 7'2" of height above
the upper level. Also, it can be loaded and unloaded from the front or
the rear.
Made Especially For...
Warehousing/Storage Facilities, Manufacturing Facilities, Paper and
Textile Industries, Aerospace Industry, Military Bases, Ships and
Marine Vessels to name a few.
Standard Features...
• Travel Height: Up to 90'
• Operating Speed: 30 fpm
• Power Requirement: 230v 3-phase 60 hertz
• Operator controls at each level
• Upper and Lower Travel Limit Switches
• Fail-Safe Brake Motors
• Chain Safety Brakes
• Slack Chain Switches
• Soft Start/Soft Stop Operation
• Mount: Surface or Pit
For Heavy Loads In Height
Restricted Areas

Technical Specifications
Operating Speed Increased
Power - 460v 3-phase 60 hertz Ground Level Loading Ramp
Security Enclosures
Gates with Electro -
Mechanical Interlocks
Multi - Level Operation
Special Environments
Technical Specifications for the Dual
Mast Mezzanine Lift are shown below.
Please fill in your desired specifications
in the spaces provided. Contact us for
special requirements or configurations.
1. What weight capacity do you require?
    (1,000 - 12,000 lbs.) _____________
2. What is the height in inches from the
      ground level floor surface to the
      second level floor surface?
      (Up to 90') __________________
Platform Carriage Side
Rails Enclosures
3. Platform carriage size:
    4' - 12' (w) x 4' - 12' (d) ___________

4. What platform load height do you
     require? 72"(h) standard; 78"(h) max.
     through doors. _______________

48"(h) on non-access openings,
snap chains on access ends
5. Which load / unload configuration
    do you require? ____ C _____Z
6. How will the unit be mounted?
    ___surface ___ pit
Surface Mount:
The loading height is 6"-8" from the floor
on the ground level and flush with the
floor on the upper levels.
Pit Mount:
Loading height is flush with the floor on
all levels. (Standard Dual Mast Pit Depth
is 6" - 8".)
Our mezzanine lifts are manufactured to ANSI/ASME B20.1 safety standards. They are not subject to elevator codes as they are
designed for material lifting only. No personnel are permitted to ride on any mezzanine lift. The following items are to be supplied by
others and are not included with the mezzanine lift: (1) Wall and floor hardware to secure the lift to the walls and floor, (2) External
electrical wiring which is to be performed by a qualified electrician to local and national codes, (3) Conduit and disconnect switch
that is required to connect to our control panel, (4) Upper and lower thresholds.
Illustrated As A 2-Level Lift with
Optional Security Enclosures;
Multi-Level Versions are Available

A. Design and manufacturing of one (1) dual mast type Vertical Reciprocating Conveyor (VRC) including
     mechanical drive unit, operator controls, safety gates and enclosures as shown on project drawings and
     as specified herein.
A. ANSI - American National Standards Institute (ANSI B20.1)
B. ASME - American Society of Mechanical Engineers (ASME B20.1)
C. NEMA - National Electrical Manufacturer's Association
A. Product Data: Submit latest edition of Dual Mast VRC datasheet and general drawings with the proposal.
B. Customer Drawings:
1. Submit Customer Engineering Drawings for customer approval within 2 weeks after receipt of an order to
include plans, elevations, sections of the VRC, base plate and lateral loading values, and recommended pit
dimensions if applicable.
2. Submit VRC Specification Sheet for approval within two weeks of receipt of an order to include scope
of work, operating and control voltages, lift speed, type of finish, and any special project notes.
C. Closeout Submittals provided with VRC Equipment:
1. Electrical Schematics Drawing including control panel layout and Bill of Material reflecting original
manufactured part numbers.
2. Mechanical Installation Manual and Electrical Installation Guide.
3. Digital Control Panel trouble shooting guide.
4. Owner's Manual including replacement parts list, exploded parts drawings, operating instructions,
maintenance schedule, and service and troubleshooting guidelines.
A. Manufacturer must have a minimum of five (5) years experience in the manufacturing of vertical
reciprocating conveyors.
B. Vertical Reciprocating Conveyors (VRC) are covered by ANSI/ASME B20.1 Safety Standards for Conveyors.
We have thousands of vertical lifts installed throughout the country and in surrounding countries. NO VRC has ever
been shut down due to lack of elevator code compliance.
C. Installer must have the approval of FSI and have a minimum of five (5) years experience in the installation
of vertical material lifts.
A. The manufacturer shall warrant the VRC against manufacturing defects from date of installation as outlined
1. Electric Motor and Cyclo-Drive Reducer - two (2) years.
2. Electrical Components - ninety (90) days.
3. Mechanical Components - one (1) year.
A. Load Capacity: The VRC shall be rated at a live load capacity of _______ lbs.
B. Operating Speed: The VRC shall have a vertical lifting speed of 20 - 25 feet per minute when loaded to
maximum capacity.
C. Vertical Travel Height: The VRC shall have a vertical lifting height of _____ inches with a total of _____
landings (including lowest level) with a distance between floors of ______ inches.
D. Lift Carriage: The VRC carriage shall be a minimum of _____ inches wide x _____ inches deep
with a steel deck plate and minimum of 48" high welded or bolt-on side panels on all non-operating ends
and safety chains with snap hooks on all operating ends.
E. Vertical Masts: The VRC shall have a two (2) support mast constructed of four (4) 4" square structural grade
steel tubes for vertical support and strengthened by horizontal 2" square steel tubes.
F. Deflection Under Load: No portion of the VRC shall exhibit permanent deflection when loaded to full capacity.
G. Shock Load: The VRC must be able to withstand a shock load of at least 500% to ensure safety.
H. Lifting Means: The drive system shall be comprised of four (4) sprockets transmitting lifting forces through
four (4) chains to the back section of the carriage. The electrical drive motors shall be 100% duty cycle coupled
with a Cyclo-Drive gear reducer with a shock load rating of 500%. Planetary or helical gear reducers are not
I. Safety Brakes and Devices: The Carriage shall be equipped with one (2) broken/slack chain brake that
prevents the carriage from descending more than 6" if tension is lost on either chain. Slack chain switches are
required to disable motor power in the event a chain becomes slack or broken.
J. Security Enclosures: Guarding on all non-operating sides of the VRC shall be by security enclosures extending
a minimum of 8' high at each level consisting of expanded metal which will reject a ½" diameter ball. Security
enclosures shall tie directly into the vertical mast for added structural support.
K. Landing Gates: Gates are required on all operating sides of the VRC at each level of operation.
1. The gates shall be (double swing) (vertical slide) (horizontal slide) (roll-up) type.
2. Each gate must be equipped with an elevator approved electro-mechanical interlock to prevent opening
of the gate unless the carriage is present and to prevent operation unless all gates are closed.
L. Signage: Signs dictating "NO RIDERS" and maximum weight capacity shall be placed at every access point
and visible from all operating ends of the carriage.
M. Approach Ramp: If pit mounting is not specified, the manufacturer shall supply a steel fabricated 8" high
approach ramp to be installed within ½" of the VRC carriage at the ground level.
N. Power Requirements: The VRC shall be manufactured to operate on 230 volts / 3 phase / 60 hertz power.
Controls voltage must be no greater than 24 volts.
O. Load Pattern: The pattern for loading and unloading the carriage at different levels must be a "Z" or "C"
A. Electric Motor:
1. Each of two (2) motors shall have a minimum duty cycle of 100%.
2. Each motor and Cyclo-Drive gear reducer must be able to withstand a shock load of at least 500% to ensure
3. Motor horsepower shall be sized to handle the carriage weight in addition to the rated live load and
specified speed.
4. All motors are three phase and shall be designed for continuous duty at ambient temperatures for 32° to 102°
5. The motors shall not automatically restart when the overload device is reset.
6. Each motor shall be equipped with a heavy-duty, long life, fast-acting fail-safe disc brake to ensure the brake
will hold in case of power failure.
B. Controls:
1. Each operating floor shall be equipped with a momentary contact push-button control station with full call,
send and mushroom style E-stop switches for manual control of lift operation.
2. An internally pre-wired, NEMA 12 rated Intelitroll self-diagnostic control panel shall be provided with
appropriate transformer, overload relay, phase monitor device, field wiring terminal block and breakers.
3. Limit Switches: The VRC shall be equipped with a floor level switch at each level, upper level, and over
travel limit switch to provide precise positioning of the carriage.
4. Slack Chain Safety Switches: Two switches shall be provided to monitor slack chain situations and disable
power to the motor while engaging carriage safety brakes in the event of a slack or broken chain.
5. The control voltage shall not exceed 24 volts for safety reasons.
C. Power Source: Owner shall terminate high voltage operating power within 10 feet of the location designated
for the VRC installation.
A. All carbon steel surfaces shall be coated with an industrial enamel finish - color slate gray and black.
B. Prior to applying finish, all dirt, mill scale, oil and grease shall be removed from carbon steel surfaces
by a combination of brushing, wiping and use of solvents.
A. Prior to commencing installation of the VRC, the installer shall visually examine the conditions under which
the VRC is to be installed and notify the architect in writing of conditions detrimental to the proper and timely
completion of the work.
A. Installer must comply with manufacturer's detailed mechanical and electrical installation instructions for proper
installation and to meet safety codes. All thresholds and extra installation materials needed must be supplied
by the installer.
A. Inspection: Upon completion of installation, the VRC shall be inspected to verify that it meets all
requirements set forth by FSI and Parts 1, 2 and 3 of this Section.
B. Tests:
1. Operating Load Test: The owner will provide a _______ pound test load and load the VRC at the lowest
level. The loaded VRC carriage shall be conveyed to an upper floor level and returned to the lowest level to
assure proper operation. If the VRC cannot lift or lower the load, the VRC shall fail the test.
2. Performance Test: This test is to be performed in conjunction with Test 1 above. During the demonstration
of the lifting and lowering test, the owner shall measure the time required to lift and lower the capacity load.
The owner will average times for lifting and lowering the load and calculate the average feet per minute travel
speed. If the VRC does not lift the load within 10% of the specified speed, or if the lowering speed exceeds
the lifting speed by more than 10%, the VRC shall fail the test.
3. Stationary Load Test: This test is to be performed in conjunction with Test 1 above. The loaded VRC
carriage shall remain stationary at an upper level for a minimum of one (1) hour. After the one (1) hour period,
the VRC will be inspected for deflection of the components or drift of the platform. If deformation or downward
drift is evident, the VRC shall fail the test.
A. Installer shall touch up all scratches, abrasions, and other defects in the pre-finished surfaces with the same
material color and type of finish as that used at time of fabrication.
B. Installer will remove and dispose of all rubbish and debris caused by the work under this section.
C. Verification that equipment is properly installed in accordance with manufacturer's guidelines and guarded to
meet or exceed ANSI/ASME B20.1 Safety Standards for Conveyors.
Dual Mast Mezzanine Lift, Mezzanine Material Lifts, Custom Industrial Material Lift, Vertical Conveyor, Freight Elevator,
Vertical Material Lifts, Vertical Platform Lifts, Vertical Reciprocating Conveyor, Pallet Master, and VRC form your
source for material handling equipment.
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