Specifications – Wood’s Powr-Grip MRPT89AC User Manual

Page 5

Rev 30.0/6-13

MRPT-AC: #35060

SPECIFICATIONS

Model Number:

MRPT89AC(O)

Description:

Designed for use with a crane or other hoisting equipment, the MRPT89AC(O)

lifter employs vacuum to hold a load for lifting, and it provides manual 360°

rotation and powered 90° tilt movements for load manipulation.

Power Source:

See serial label for specific AC voltage, frequency and amperage.

Vacuum Pads:

Eight 9" [23 cm] nominal diameter (Model VPFS9), standard rubber, spring-

mounted (¼" [7 mm] travel), with #60 filter screen)

Maximum Pad Spread:

29¼" x 59¼" [740 x 1502 mm] (to outer edges, w/standard pad frame―see

Options)

Load Capacity:

(rated at 16" Hg [-54 kPa] on clean, smooth, nonporous flat surfaces

)

Per-Pad:

125 lbs [57 kg]

Maximum:

1000 lbs [455 kg]

Lifter Weight:

278 lbs [126 kg] (does not include options;

see serial label for weight including options, when applicable)

Rotation Capability:

Manual, 360°, with automatic locking at each ¼ revolution (when desired)

Tilt Capability:

Powered, 90°; Speed = approx. 9 seconds; Duty = 60 tilts per hour

Vacuum Pump:

Diaphragm type, 3 SCFM [85 liters/minute] nominal airflow

Rotary vane type, 4 SCFM [113 liters/minute] nominal airflow

Vacuum Reserve Tank: Vacuum reservoir helps prevent immediate vacuum loss in case of power failure.
Vacuum Gauge:

Dial gauge indicates current vacuum level in positive inches of Hg and negative

kPa.

Vacuum Lift Light:

Green light is energized whenever vacuum level is sufficient for lifting maximum

load weight (higher than 16" [-54 kPa]).

Options:

Available

with various pad frame options, including CF1IFO, CF2EAO and CF3TAO.

See ASSEMBLY: P

RAME

PTIONS

for alternative Pad Spread dimensions.

See separate instructions about optional features.

Operating Elevation:

Maximum = 10,000 feet [3048 meters]

Operating Temperatures: 32° to 100° F [0° to 38° C]
Service Life:

This lifter is designed to have a service life of at least 20,000 lifting cycles, when

used and maintained as intended. Vacuum pads, filter elements and other wear-

out items are excluded; see MAINTENANCE and REPLACEMENT PARTS LIST for

more information. For the D

ISPOSAL OF THE

IFTER

after its service life, see

INTENDED USE.

ASME Standard BTH-1: Design Category "B", Service Class "0" (see www.powrgrip.com for more

information)

!!-CE-!! Note: This symbol appears in the

INSTRUCTIONS

manual only when requirements of a CE Standard are

different

from requirements of other standards that also apply to this vacuum lifter. CE requirements are mandatory

in geographical areas where CE Standards apply, but may be optional in other locations.

Load Capacity is based on a friction coefficient of 1; see MAINTENANCE: V

ACUUM

AINTENANCE

: Friction Coefficient for

additional information.

Specifications shown for 120 V AC lifters; characteristics may vary for other voltages.