|
Feature |
ACI |
ACCO |
ACE |
Coffing |
Harrington |
R&M |
Yale |
|
|
|
Rail Size (ASCE) |
Recommended rail sizes
are ASCE 25-60 lbs (depending on Capacity). |
Recommended rail sizes
are ASCE 40-80 lbs. |
Recommended Rail sizes
are ASCE 40 lbs through 8 inch wheel and 60-85 lbs on 10 inch wheel. |
Recommended rail sizes
are ASCE 20-45 lbs. |
Recommended rail sizes
are ASCE 30-60 lbs. |
Similar to ACI. |
Recommended rail sizes
are ASCE 20-45 lbs. |
|
Axles |
Fixed axle bores are
lined in one setup ensuring perfect wheel alignment. Axles are
machined from carbon steel. |
Similar to ACI. |
Rotating & Fixed axles. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
|
Wheel Bearings |
Sealed life-time
lubricated precision ball bearings. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
|
Brake Type |
Externally adjustable
D.C. brakes allow controlled deceleration -- adjustable up to 50% of
rated motor torque. |
Adjustable AC disc type
brakes. |
Optional AC disc brakes. |
Disc brakes are
optional. |
Similar to ACI. |
Disc brakes are
optional. |
Disc brakes are
optional. |
|
Bumpers |
High impact rubber
bumpers are provided as standard. |
Bumpers are optional. |
Similar to ACI. |
Bumpers are optional. |
Similar to ACI. |
Bumpers are optional. |
Bumpers are optional. |
|
Control Panel |
Includes mainline
contactor, 115V control circuit transformer, bridge fusing and
reversing contactor in a NEMA 1 enclosure. NEMA 4/12 panels are also
available as an option. 150V Transformer for hoist trolley and
bridge control . |
Include reversing
contactor, 100 VA control transformer (115V control is standard),
mainline magnetic contactor, and fuse blocks all enclosed in a NEMA
12 enclosure. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
|
Variable Drive |
Optional to add Variable
Frequency Drive. |
Similar to ACI. |
Similar to ACI. |
Not Available. |
Not Available. |
Similar to ACI. |
Similar to ACI. |
|
Construction Type |
Channel fabrication
provides superior strength, rigidity and structural integrity. |
Similar to ACI. |
ASTM A500 structural
tube. |
Similar to ACI. |
ASTM A500 structural
tube. |
ASTM A500 structural
tube. |
Similar to ACI. |
|
CMAA |
Class D. Loads
approaching 50 percent of the rated capacity will be handled
constantly during the working period. High speeds are desirable for
this type of service with 10 to 20 lifts per hour averaging 15 feet. |
Similar to ACI. |
Class C. In this type of
service, the crane will handle loads that average 50% of the rated
capacity with 5 to 10 lifts per hour averaging 15 feet. |
Class C. |
Class C. |
Class C. |
Class C. |
|
Disconnect Switch |
Through-the-door
disconnect rated by NEC 610.32 for added safety. |
Manual disconnect switch
assembly is fusible with an option to add 30 amp. |
Through the door 40 AMP
disconnect. 30 amp line contactor. |
Fused disconnect box has
30 amp disconnect. 30 amp line contactor. |
Through-the-door
fused disconnect switch is OSHA compliant lock out capable. |
Fused disconnect box has
30 amp disconnect. 30 amp line contactor. |
Fused disconnect box has
30 amp disconnect. 30 amp line contactor. |
|
Acceleration
Control |
Mechanical soft start is
standard on slow motors. It checks the initial rush of current to
the motor, and allows smooth acceleration from start to full rated
speed. |
It is optional. |
Not Available. |
It is optional. |
Drives and brakes are
compatible with EAC. |
It is optional. |
It is optional. |
|
Motor |
Drive motors are 30 min.
rated TENV with class "F" insulation. |
Similar to ACI. |
Drive motors are 60 min.
rated TENV with class "H" insulation. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
|
Rail Sweeps |
Rail sweeps and drop
stops are standard. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
|
Drives |
230/460 volt
application, 3 phase, 60 Hz. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
Similar to ACI. |
|
Wheels |
Double flanged, steel
hardened to 350 BHN. |
Double flanged, steel
hardened to 375-425 BHN. |
Forged steel hardened to
320 BHN. |
Ductile iron hardened to
220 BHN. |
Hardened wheels are
optional. |
Ductile iron hardened to
280 BHN. |
Ductile iron hardened to
220 BHN. |