Wood’s Powr-Grip MRPT89DC - Manual (Page 5)

Rev 24.0/12-13 3 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 1 )
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: 2 Powered, 90°; Speed = approx. 17 seconds; Duty = 48 tilts per hour
Vacuum Pumps: 2 diaphragm type, 1 SCFM [28 liters/minute] nominal airflow or
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 AD F RAME O 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 L 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.
1
Load Capacity is based on a friction coefficient of 1; see MAINTENANCE: V ACUUM P AD M AINTENANCE : Friction Coefficient for
additional information.
2
Rated under maximum load; tilt duty increases as load weight decreases.