Coreless Medium Frequency Induction Smelting Furnace
GWG-J furnace is hydraulic tilting and steel shell Coreless Medium Frequency Induction Smelting and Holding Furnace.
Application: It's mainly used in melting cast iron, cast steel and copper and aluminum alloy. It can also be used together with self-heated furnaces and electric arc furnace for heating or keeping warm the molten iron and molten steel.
Structure Features:
1. Solid steel structure and durable;
2. Good magnetic isolation, safe and reliable;
3. Solid frequency conversion power supply, easy operation; Adjustable power rate, easy operation and maintenance
4. Easy to start up with load or free of load
Equipment Constitution: Furnace block, l Hydraulic mechanism, Operation table, Low-voltage power supply system Electro thermal capacitor cabinet, Water temperature and pressure annunciator Water cooling cables, Furnace leakage alarm
Electrical Feature:
1. Digital CMOS chip (U.S. ASIC-2-12), with the highest degree of integration at home, is used in control circuit, the overall machine controlled through one single panel.
2. Frequency-sweep zero voltage start, high success rate, no shock;
3. Automatic resistance adjustment, permanent power output, 10-20% energy saved in comparison with domestic traditional machine of the type;
4. Auto phase sequence adaptation, free of synchronization;
5. Good performance in reload staring, auto recovery;
6. Highly integrated in controlling circuit, free of use of high-rate starter and relay loop, fairly low failure rate;
7. Wholly digital design, strong in anti-interference, no temperature shift when in continuous working;
8. Multi-protection functions (for over current, over voltage, insufficient water pressure, power failure, or phase absence), and mishandling will not cause damage to machine.
Features:
1) 1,600 centigrade
2) SCR static frequency conversion adopted as IF power supply for induction heating
3) Pouring action driven mechanically or oil hydraulic
4) High efficiency, little noise, easy operation and maintenance
5) Usage: refining ferrous metals, smelting nonferrous and precious metals, such as Cu and Al
Coreless Medium Frequency Smelting Furnace
GW-JJ furnace is mechanical tilting (using gear reducer and electromotor) and aluminum shelled Coreless Medium Frequency Induction Smelting or Warm-keeping/holding Furnace.
Application: It's mainly used in melting cast iron, cast steel and copper and aluminum alloy. It can also be used together with self-heated furnaces and electric arc furnace for heating or keeping warm the molten iron and molten steel.
Structure Features:
1. Solid aluminum structure and durable;
2. Good magnetic isolation, safe and reliable;
3. Solid frequency conversion power supply, easy operation; Adjustable power rate, easy operation and maintenance;
4. Easy to start up with load or free of load.
Equipment Constitution: Furnace block, l Mechanical mechanism, Operation table, Low-voltage power supply system electro thermal capacitor cabinet, Water temperature and pressure annunciator water cooling cables, Furnace leakage alarm.
Electrical Feature:
1. Digital CMOS chip (U. S. ASIC-2-12), with the highest degree of integration at home, is used in control circuit, the overall machine controlled through one single panel;
2. Frequency-sweep zero voltage start, high success rate, no shock;
3. Automatic resistance adjustment, permanent power output, 10-20% energy saved in comparison with domestic traditional machine of the type;
4. Auto phase sequence adaptation, free of synchronization;
5. Good performance in reload staring, auto recovery;
6. Highly integrated in controlling circuit, free of use of high-rate starter and relay loop, fairly low failure rate;
7. Wholly digital design, strong in anti-interference, no temperature shift when in continuous working;
8. Multi-protection functions (for over current, over voltage, insufficient water pressure, power failure, or phase absence), and mishandling will not cause damage to machine.
Features:
1) 1, 600 centigrade
2) SCR static frequency conversion adopted as IF power supply for induction heating
3) Pouring action driven mechanically or oil hydraulic
4) High efficiency, little noise, easy operation and maintenance
5) Usage: Refining ferrous metals, smelting nonferrous and precious metals, such as Cu and Al
Vertical Hollow Shaft OHS Motor (For Deep Well Pump)
OHS Series motors are vertical hollow-shaft three-phase squirrel cage induction motors
specially for driving vertical deep-well turbine pumps. The protection degree
is weather-protected type 1 (drip-proof) and the rated voltage is 460V 60Hz.
We can also provide with rated 380/660V on request. Adopting an internationally advanced
structure of anti-reverse, the motors are exact and reliable for preventing
the reversal. The motors are employed with the oil-immersed bearing lubricating
construction, which makes the bearings running in a condition of satisfactory
cooling and lubrication so as to ensure a longer operating duration of the bearings.
The motors are characterized by high efficiency, large starting torque, low temperature
rise, leakage free, quiet running, low vibration, etc.
Through our innovative research and development, series OHS deep-well pump motors
transcend the traditional mode of motor construction, which leads to a stable and
increased efficiency of the motors.
As a domestically initiative product, the motors reach the international advanced
level of the latest NEMA Standard. After being fitted with long-shaft typed pumps,
the motors are widely used in pumping underground water in mine, city, farm,
factory and so forth.
Vertical Hollow Shaft VHS Motor
Features:
1) Type: VHS series vertical hollow shaft motor (WP-1)
2) Technical standards:
a) Rated output grade: the IEC standard
b) Protection degree: weather-protected type1 (drip-proof)
2) High efficiency, large starting torque, low noise or vibration, small temperature
increasing range
3) Can sustain heavy axial thrust load
4) Compact and reliable structure
5) Easy maintenance
6) Usage: suitable for vertical pumps, especially for deep well vertical turbine
pumps,
widely used for pumping underground water in mines, factories, farms and cities.
7) Enquiry information required: output (HP or kW), speed, voltage, frequency,
insulation class, ambient temperature, non-reverse backstop (if required), starting
method (if not specified, the downthrust load would be standard)
8) Motors with rated voltage below 500V, frequency of 60Hz, class B or F insulation
available
9) We also supply vertical hollow shaft motors for special purposes
Z4 DC MACHINE Motor
Z4 DC machines are newly developed products of our factory. The products are
found wide use for prime mover in various, such as mill auxiliary in metallurgical
industry, metal cutting machine-tool, paper making, print, textile, printing
and dyeing, cement-making, plasticextruding machine, etc.
Outline and mounting dimensions of the motors comply with IEC72 Standard, except
for the axial distance between the mounting holes (dimension B).
Performance and technical requirements of the motors can be checked in accordance
with IEC34-1 Standard of the International Electro technical Commission, or DIN57350
Norm of the Deutsche Industries-Norm.
The motors are class F insulated, with reliable insulating construction and impregnating
process, ensuring stable dielectric performance and excellent heat dissipation.
The motors possess the features of small size, good performance, light weight, large
output, high efficiency and reliability, being able to match the current internationaladvanced level.
The motors can be lastingly operated form fully controlled three-phase bridge without
a smoothing reactor. Motors for 160V may be operated on single-phase bridge
thyristor. In that case, a smoothing reactor, whose inductance is specified in
the relevant technical date, should be inserted in the reactor to suppress ripple
current.
Features:
1) Technical standards:
A) Continuous duty: S1
B) Domestic environmental standard: GB/T 755 (fundamental technical qualifications
for motors)
2) Specifications:
A) Nominal rated voltage: 160V, 440V (220V, 440V or other voltage available)
B) Nominal field voltage: 180V
C) Rated speed (nine grades): 200rpm, 300rpm, 400rpm, 500rpm, 600rpm, 750rpm, 1000rpm,
1500rpm, 3000rpm
3) Operating ambients:
A) Altitude: Less than or equal to 1, 000m
B) Maximum cooling temperature: 40oC
C) Free from acidic, alkali fumes or other irritant gas which could corrode insulating
materials
4) Compensation windings available for Z4-315, Z4-355, Z4-400 and Z4-450
5) Z4-250 and Z4-280 are also feasible with compensation windings
6) Marked earthing terminals supplied
Armature and field circuits for motors may be either operated by static thyristor
controlled supplies or DC generators. Torque can be maintained constant by reducing
speed via weakening armature voltage below rated value. We assure that the
lowest armature speed range can be decreased to 20rpm by invariable torque and stable
running. Meanwhile, field voltage is reduced to weaken speed with a steady
output.
These motors have separate excitations. In addition to the above listed nominal field
voltage, other kinds of excitation voltage are also acceptable according tocustomers'
requirements.
If voltage is less than 500V, forced excitation is allowed. When a motor is normally
operating, the excitation current should be no higher than the rated excitation
current. To keep the insulating materials of the excitation system reliable,
the motor must be protected against self-induced voltage by a resistor connected
in parallel with the field windings when the excitation circuits of the motor
are interrupted.
At rated field voltage, the resistance value of a shunt resistor is about seven times
more than field resistance at low temperature. While the field voltage is higher
than nominal value, the resistance value of a shunt resistor may be lower.
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