Specifications – Wood’s Powr-Grip MRPT89DC User Manual

Page 5

Rev 24.0/12-13

MRPT89DC: #35062

SPECIFICATIONS

Model Number:

MRPT89DC(O)

Description:

Designed for use with a crane or other hoisting equipment, the MRPT89DC(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:

12 volts DC, 54 amps

Battery Capacity:

35 amp-hours

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:

306 lbs [139 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. 17 seconds; Duty = 48 tilts per hour

Vacuum Pumps:

2 diaphragm type, 1 SCFM [28 liters/minute] nominal airflow

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

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

extends battery life by reducing pump cycles required to maintain vacuum.

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" Hg [-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 = 7000 feet [2133 meters]

Operating Temperatures: 32° to 104° F [0° to 40° 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.

Rated under maximum load; tilt duty increases as load weight decreases.