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Used 2,000 HP Ball Mill for sale | Machinery and Equipment

Allis Chalmers Svedala ball mill, 13' diameter x 21' long, rubber-lined mill, with Siemens-Allis 2,000 HP, 4000 volt, 200 RPM synchronous motor, Eaton airflex clutch. Includes trommel discharge, ball mill rejects conveyor, lube system, etc. Offered complete with controls. New in 1979. Completely rebuilt in 1998, serial number C-2485.

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© Siemens 2019

Motors Induction and synchronous motors Induction and synchronous 2) motors Synchronous motors Induction and synchronous 2) motors Energy recovery Yes Yes Yes Yes Multi-motor drives Yes No No No Semiconductors HV-IGBT/IGCT LV-IGBT Thyristor Thyristor Topology Voltage source inverters: Three-level neutral point clamped topology (NPC)

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Used Rod Mills for sale. equipment & more ...

13 x 18.6 ft Rod/ Ball mill with 1,500 HP. Manufacturer: - 1500 hp (1125 kw) AC 60 Hz synchronous motor, 225rpm - Eaton Fawick air clutch 46VC 1200 - Mill shell and cast heads - Feed and discharge trunnions and liners - Trunnion bearing assemblies - Refurbished girth g...

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Gearmotors - Clutch Engineering

Clutch Engineering offers high-quality gear motors that can be used with mechanical equipment across various industries. Gearmotors pair a gearbox with an electric motor, making them a critical part of many systems. We offer modular designs that allows for a variety of gearbox styles, reduction ratios, and motors to be used. This makes it possible to fit the requirements of a …

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Grinding Mills - 911Metallurgist

A mill can be provided with a low speed synchronous motor having torques of approximately 40% starting, 30% pull-in and 175% pull-out for use with a magnetic clutch. A magnetic clutch drive may involve a close coupled unit with two pinionshaft bearings and combination clutch-coupling (Drive 1), or four bearings with a clutch and flexible ...

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Used Mills and Crushers: Immediately Available

Allis Chalmers Svedala Ball Mill, 13' diameter x 21' long, rubber-lined mill, with Siemens-Allis 2,000 HP, 4000 volt, 200 RPM synchronous motor, Eaton airflex clutch. Includes trommel discharge, ball mill rejects conveyor, lube system, etc. Offered complete with controls. New in 1979. Completely rebuilt in 1998, serial number C-2485.

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Mining - Grinding and Processing | WEG

Constant speed. Low speed synchronous motors. Synchronous motors are widely used in mill driving systems at a constant speed using an air clutch between the motor shaft and mill p

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ABB Ring-Geared Mill Drives - Power Transmission

induction motor. Or, the ABB low-speed solution— including a frequency converter and brushless synchronous motor—elimi-nates the costly gearboxes of the high-speed solution. Both solutions start with the motor directly coupled to the mill—thus elim-inating the air clutch typically required for a fixed-speed solution. This allows

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Synchronous motor drive for rubber mills: With special ...

Synchronous motor drive for rubber mills: With special reference to dynamic braking control for safety stopping Abstract: Since wound-rotor induction motors with clutch brakes have been very commonly used for this application, a review of the operating conditions and safety requirements is given, in order to show why synchronous motors without ...

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Used 2,000 HP Ball Mill for sale | Machinery and Equipment

Allis Chalmers Svedala ball mill, 13' diameter x 21' long, rubber-lined mill, with Siemens-Allis 2,000 HP, 4000 volt, 200 RPM synchronous motor, Eaton airflex clutch. Includes trommel discharge, ball mill rejects conveyor, lube system, etc. Offered complete with controls. New in 1979. Completely rebuilt in 1998, serial number C-2485. Previously used at phosphate …

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12' x 19' Ball Rod Mill - Nelson Machinery ...

1250 HP GE Synchronous Motor 4000 Volt; Eaton 38VC1200 Clutch New Roto Seal for Clutch; Ring Gear with Guards 2 Piece, Single Helical; Pinion Shaft Assembly . History. Previously Used as a Rod Mill Can be Converted from Rod Mill Service with New Trunnion Inserts; Currently Disassembled & Removed; Ready to Inspect or Ship

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Electromechanical Dynamic Behaviour and Start-Up ...

In general, the motor can drive the ball mill to start. When =3 s, the clutch reaches the synchronous process and working speeds at 2.5 and 2.9 s, respectively. When =4 s, the clutch reaches the synchronous and working speeds at 3.6 and 3.9 s, respectively.

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9' x 10' Allis Chalmers Ball Mill - Nelson Machinery ...

9′ x 10′ Allis Chalmers Ball Mill, 400 HP Motor, Eaton Airflex 20VC1000 Clutch Plus Spare. Equip yourself with the gold standard. Shell & Heads. Welded Steel Shell; Feed & Discharge Heads . Gears. 2-piece Bull Gear 248 Teeth x 13″ Wide; Pinion Shaft Assembly 20 Tooth x 13″ Wide . Motor. 400 HP GE Synchronous Motor 550 Volt; 257 RPM . Clutch

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allis chamler ball mills - massage-bebe92.fr

Allis Chalmers Svedala ball mill 13 diameter x 21 long rubber-lined mill with Siemens-Allis 2 000 HP 4000 volt 200 RPM synchronous motor Eaton airflex clutch Includes trommel discharge ball mill rejects conveyor lube system etc Offered complete with controls New in 1979 Completely rebuilt in 1998 serial number C-2485 Previously used at phosphate minerals processing facility...

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Size Reduction - CJT Surplus

1-Used 9×10 Allis Chalmers Ball Mill. Wet grind, trommel discharge; Single helical gear ring and pinion drive with gear guards; 400 hp synchronous motor, 3ph/60Hz/5550 volt; Eaton 20VC1000 Pneumatic clutch; Bearing lubrication pumps; CJT Reference DS#08753

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STEPPING FORWARD: USING VARIABLE SPEED DRIVES FOR ...

An electric motor (asynchronous or synchronous machine, depending on the application) is the link between the electrical energy source and the mechanical load, the tumbling mill.

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1000 HP,Synchronous Motor - Electric motors & generators ...

I have a Synchronous Motor coupled to a Ball Mill by clutch. It starts uncoupled and after it synchronizes the clutch engages the load. Nameplate and other data and parameters are: 1000HP, PF 1.0, 4160V, 60HZ, 180 rpm, 60°C Rise Stator, 70°C Rise Rotor, Excitation 125V, kVA 800, 111 Amps armature, 125 V field, Exc. Amps 158, frame 9404, GE.

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Ball Mill – Northern Heavy Industries Group Co., Ltd.

Ball Mill. Air clutch and liquid soft starter will decrease starting electric current from 6.5 times to 2.5 times. Multiply driving system option: single or double synchronous motor/ induction motor, non-gear driving with ring motor. Machining work of end cover, shell, large gear will be done separately, which will decrease manufacturing period.

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Ball Mills for sale, Pebble Mills, Rod Mills, SAG Mill ...

12.5 Ft x 15 Ft Allis Chalmers Ball Mill, complete with 1,500 HP Synchronous Motor, 277 RPM, 4160, Mill rpm 16.8, Trunion 26'' x 54'', Pinion 17 Teeth, Bull Gear 280 Teeth, Face 26.75'', Bearing SKF 23238C-C3W33, Clutch FAWICK VC381200.

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China 6kv Tdmk Synchronous Motor for Mines - China Tdmk ...

The series is a kind of large-sized 3-phase AC synchronous motor mainly used to drive mills in mines, including grate ball mill, rod mill and coal mill. Motor Name: TDMK Mine High Voltage Synchronous Motor Power range: 300KW-5000KW Speed range: 150--500 r/min Rated voltage: 6000V/10000V/13800V (can also be made into other grade voltages)

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ball mill air clutch install

use air clutches for a controlled mill start. Installation of a ring motor on a SAG mill. Synchronous motor drive with air clutch. COMBIFLEX® drive (5,400 kW) with high- speed synchronous motor and fluid coupling. Oil lubri-cated standar-dised pinion arrangement with Ring motor drive. induction motor. Get More

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US3538363A - Electric drive to be employed in a drilling ...

The alternation of the on-load and no-load cycles provides the possibility to introduce between the motor fed either from the supply mains or from a diesel generator, and the hoisting shaft of the winch, an energy storage (a flywheel) and an electromagnetic clutch made as a synchronous machine provided with a rotating armature and an inductor.

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3-Phase PM Synchronous Motor - Theseus

non-synchronous motor. In the basic structure, synchronous motors can be started by a separately excited DC motor, connected to the rotor of the synchronous motor. When the speed is near the synchronous speed, then the synchronous rotor is excited with DC supply. It is also possible to construct self-starting synchronous motor by adding cage

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Mining - Grinding and Processing | WEG

Synchronous motors are widely used in mill driving systems at a constant speed using an air clutch between the motor shaft and mill pinion to provide a smooth starting method.

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Milling - Energy intensive and high maintenance

A squirrel-cage motor or a synchronous motor started direct on line without any help of a frequency converter normally cannot produce sufficient starting torque. Therefore it is required to accelerate the mill without load until the rated speed and then, by means of a clutch system, couple the motor to the mill. Another possibility is to use a

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Featured Used Mining Equipment in Stock. Machinery ...

Allis Chalmers Svedala ball mill, 13′ diameter x 21′ long, rubber-lined mill, with Siemens-Allis 2,000 HP, 4000 volt, 200 RPM synchronous …

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Sag Mill Synchronous Motors - caesarmachinery

Sag Mill Synchronous Motors. Prompt : Caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment, mineral separation equipment, limestone grinding equipment, etc. large synchronous motor. The poles of ... stage mill (no ball mill after the SAG mill) and has a diameter and ...

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TECO-WEsTinghOusE

Synchronous motors can be found wherever there is a demand for highly efficient, cost-effective, depend-able machines. They are frequently used for chippers, mixers, crushers, pulverizers, rolling and grinding mills, pulp refiners, pumps, fans, and compressor drives, as well as adjustable-frequency drive systems. With all of

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China Large-Sized 3-Phase Synchronous Motor Series TM ...

When a customer wants to adopt a pneumatic clutch, we can design a revolving shaft or a shaft with punched holes according to customer requirements. Purpose The series is a kind of large-sized 3-phase AC synchronous motor mainly used to drive mills in mines, including grate ball mill, rod mill and coal mill.

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SAG Mill Components - Mineral Processing & Metallurgy

If an "across the line" start is allowable, the air- clutch can be eliminated and a high torque synchronous motor used, either of the low speed type or a high speed type thru a gear box. If the advantages of a synchronous motor are desired on any dual pinion drive application, dual synchronous motors are available to drive dual pinion gear ...

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Synchronous motor heat question. | NAWCC Forums

Synchronous motor heat question. | NAWCC Forums. We are aware of the performance issues with the forum. These are due to problems with Comcast's lines in the Columbia, PA area. We are working on the immediate issue with Comcast and are also working on a long term plan that will eliminate our reliance on Comcast. Thank you for your patience.

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Discussion at spring convention: Synchronous-motor drive ...

S. H. Mortensen: Mr. Drake's paper recognizes the importance of the application of dynamic braking to motors driving rubber mills and similar industrial installations where quick stops are necessary for safety reasons. The importance of this was brought to the speaker's attention in 1918, in connection with the design and operation of a 500-h. p., 450-rev. per min., self …

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(PDF) Evaluation of synchronous motors on grinding mills

frequency drives (VFDs) or used with direct start with a clutch system that would synchronize the motor first to overcome low starting torques. This …

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SAG Mill Components - Mineral Processing & Metallurgy

A cyclo-converter reduces the power frequency and a synchronous motor is either wrapped around shell or mounted on a trunnion extension. This makes the mill essentially a part of a synchronous .motor rotor with the stator in its usual position around the rotor. Inherent in this type of drive is limited speed variation.

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Used Synchronous Motors for sale. GE equipment & more ...

1,500 HP Ideal Electric synchronous motor; 240 RPM. 4 units available - 1,500 HP - 240 RPM - 4,000 Volt - 3 ph, 60 Hz - Frame M-7 - Type SM - 1.0 P.F. - EOK - Clutch-compatible shaft - Made in USA - Removed and in storage - Immediately available

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MILL DRIVES FOR CEMENT INDUSTRY TOPICS FOR DISCUSSION

A. Ball Mill Drives SINGLE MOTOR DRIVES • Centre drive with low-torque synchronous motor and fluid coupling • Centre drive with low-torque synchronous motor and air clutch. October 29, 2006 5 B. Ball Mill Drives DUAL DRIVES, TWIN MOTOR DRIVES • High …

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Drive system for grinding mills - Dominion Engineering ...

By making provision for clutch cooling to a greater extent than is normally considered necessary, mill rotation at 90% or even 80% of synchronous speed is made possible, wile maintaining synchronous operation of the motor.