Specifications – Wood’s Powr-Grip MT49AC User Manual
Page 2
Rev 11.0/12-10
MANUAL TILTER • AC-VOLTAGE • 4-SCFM
#35084: 1
SPECIFICATIONS
Model Number:
MT49AC
Description:
Designed for use with a crane or other hoisting equipment, the MT49AC
lifter employs vacuum to hold a load for lifting, and it provides manual 90°
tilt movement for load manipulation.
Power Source:
See serial number plate for specific AC voltage, frequency and amperage.
Vacuum Pads:
Four 9" [23 cm] diameter (Model VPFS9), 55 durometer natural-
polybutadiene rubber, spring-mounted (¼" [7 mm] travel), with #60 filter
screen
Maximum Pad Spread:
23½" x 46½" [597 mm x 1184 mm] to outer edges
Load Capacity:
(rated at 16" Hg [-54 kPa] on clean, smooth, nonporous flat surfaces
1
)
Per-Pad:
125 lbs [56.5 kg]
Maximum:
500 lbs [225 kg]
Lifter Weight:
88 lbs [40 kg]
Tilt Capability:
Manual, 90°; Latch engages when pad frame is in vertical orientation.
Vacuum Pump:
Rotary vane type, 4 SCFM [113 liters/minute] nominal airflow
or
Diaphragm type, 3 SCFM [85 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" Hg [-54 kPa]).
Options:
See appendix for 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.
ASME Standard BTH-1:
Design Category "B", Service Class "0" (see www.powrgrip.com for more
information)
Wiring Diagram:
The following wiring diagrams are attached for reference in servicing the
lifter or trouble-shooting a deficiency:
!!-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.