40JM/16/2/5/32 - 2Pole - 3PH - Long Cased Axial Fan - EJ431273
SPECIFICATIONS
Max Airflow: 8250m3/hr
Motor Power: 1730W
Motor RPM:2840 rpm
Max Amps :3.48A
Temp Rating: -40°C to +50°C
Weight:37Kg
IMPELLER:
BLADE DESIGN: Woods’ AEROFOIL blades incorporate
bespoke aerodynamic profiles that are optimised to
provide high levels of performance and efficiency with
minimal noise generation whilst providing a robust
mechanical design.
HUB DESIGN: Profiled hub and clamp-plates are used
to retain the blades, whilst permitting blade angle
adjustment when the impeller is at rest. Hubs are fitted
with an integral steel insert to provide a resilient
interface with the motor drive shaft.
STRUCTURAL DESIGN: Impellers are designed with a
minimum safety factor of 2.0 when performing within
their qualified operating range.
MANUFACTURE: Hub and blade components are
precision die cast, or for larger fan diameters, have
gravity cast components, using aluminium alloys that
have a high levels of strength/weight ratio and provide
excellent corrosion resistance. All impeller components
undergo real time X-ray inspection to assure structural
integrity.
BALANCE: In accordance with ISO 14694, Grade G16 to
G2.5, depending on rated motor power.
FORM OF RUNNING: Form B: Airflow through impeller then
over the motor (as standard). Form A with airflow over the
motor then through the impeller is also available.
IMPELLER LOCATION AND FIXING: Impellers are located on the motor drive shaft by a retaining washer and screw fitted into a tapped hole in the end of the shaft and
positively secured with either locking compound or mechanical fixing. Torque transfer is by a key and keyway manufactured in accordance with BS 4235:1972.
NON-OVERLOADING: JM Aerofoil fans have a non overloading characteristic; the peak power input occurs within the range of normal operating pressures and is always exceeded by the motor rating.
FAN CASING
MATERIAL: Casings are manufactured from mild steel to
BS EN 10111 Grade DD11.
CASING DESIGN: With integral pre-drilled flanges and fully
welded seams. Casing and flange thickness varies
depending on fan diameter and motor size. Long cased
configurations enclose the entire length of the impeller and
motor assembly and are complete with a duct mounted
terminal box and inspection port. A rubber moulding is
fitted to the port.
Short cased configurations where the motor extends
beyond the casing are available without a terminal box or
sight port. Electrical connection is made directly to the
motor.
CASING FINISH: Hot dip galvanised after manufacture to
BS EN ISO 1461.
CONNECTION FLANGES: Flanges are an integral part of the
fan casing and feature fixing holes that are equi-spaced
around a pitch circle diameter to facilitate connection to
duct work in accordance with BS EN ISO 13351.
MOTOR
TYPE: Fan motors are of the totally enclosed, squirrel cage
induction, S1 continuous duty type.
MOTOR RATINGS: Woods uses integrated fan motors
where the ratings are determined in full accordance with
IEC 60034-1 when the motor is installed in the fan. Most
motors are classed IC 418 according to IEC 60034-6 and
therefore cannot be operated when separated from the
fan unless a derated TENV rating is applied.
TWO SPEED: Pole Change (also known as PC or
Dahlander) motors operate at one of two speeds by
reconnecting a single winding via six winding terminals
to create the required pole configuration. Dual Wound
motors have two separate individual windings of the
requisite poles to achieve the required speeds.
ELECTRICAL SUPPLY: Single and three phase motors
are available.
220-240 V 60 Hz single phase (1Ø)
400 V 60 Hz three phase (3Ø)
440-480 V 60 Hz three phase (3Ø)
(Other voltages and 50 Hz variants are available on
request).
Single phase motors are of the capacitor start and run
type. All motors are capable of withstanding direct
online starting.
SPEED CONTROL: All three phase, single speed motors
are suitable for inverter control. Transformer or
electronic control options are also available for some
smaller frame sizes.
BEARINGS: Either ball or roller type bearing with an L10
design life of at least 20,000 hours when calculated
using ISO 281 for rated fan duty.
MOTOR FINISH: Aluminium self-finish or Cast iron
painted to motor manufacturers specification.
INGRESS PROTECTION: IP55 with drain plug fitted.
TERMINAL BOXES: Where fitted, all terminal boxes shall
have the same level of protection as the motor.
STANDARD TEMPERATURE FANS: Fans are designed for
continuous operation from -40°C to +50°C, with motors
suitable for starting at temperatures above -20°C.
PERFORMANCE DATA
Fan performance data is derived from tests conducted
in the Woods’ laboratory (accredited by AMCA in
accordance with ISO 5801) and is intended for fully
ducted, type D configurations.
Acoustic data is derived from tests conducted in the
Woods’ laboratory in accordance with ISO 5136
specifically for ducted conditions.
REVERSAL OF AIRFLOW
Woods Air Movement has developed the JM Aerofoil to
provide optimum aerodynamic and acoustic
performance.
As well as achieving enhanced performance, the
development process has established the operational
limits of the impellers in all circumstances.
Stress measurements have been conducted when
operating in both forwards and reverse modes in order to
determine the maximum speeds for continuous operation.
This also involved extensive testing of the materials in
order to establish relationships between life, operational
stresses and casting quality.
Since the stresses experienced in the reverse mode are
generally higher than those in forward operation some
impeller configurations are not available for reverse
operation at maximum speed. In all instances where
reverse operation is required, please enquire to confirm
suitability.
WARRANTY PERIOD
Our standard warranty period for both the fan and motor
is 2 years from date of despatch.
