Uralmash Machine-Building Corporation

Uralmash on olnud Eesti jaoks tähtsaim mäemasinate tehas. Seal on valmistatud meie draglainid ja mehaanilised ekskavaatorid.


http://www.uralmash.ru


Машиностроительная Корпорация «Уралмаш»

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Product description

Here: Catalogue ╩ Mining equipment ╩ Crawler-mounted open-mine excavators (power shovels)

Crawler-mounted open-mine excavators (power shovels)

Category: Mining equipment

Crawler-mounted open-mine excavators are intended for mining, transferring ore and dumping open-cast rock to transport vehicles, as well as for refuse disposal and ore handling operations in storages and in continuous flow production cycles.
Depending on hardness category of developed rock, the development can be carried out either without pre-loosening or with blast pre-loosening.
Different excavator modifications exist for different climatic conditions. All excavator mechanisms are complete technological units, this allows modular excavator repair.
The design concept of open-mine excavators is based on double-girder dipper stick and rack crowd.
ЭКГ-5А excavator is the basic model incorporating many years of designing and operating experience. This is the smallest model within the size range and, at the same time, the model which most design versions are based on. ЭКГ-5А features simple design, reliability, long service life time, easy control, stepless speed control.
The following modifications are based on ЭКГ-5А, an efficient machine well-known to customers:
ЭКГ-5В. The excavator bucket features built-in pneumatic percussion teeth, which automatically activate when digging resistance increases. It facilitates rock disintegration during excavating, enables excavation of fractured rock and low-to-medium-hardness coal without blast pre-loosening. Usage of the model is reasonable in case drilling and blasting operations are impossible due to ecological or other reasons.
ЭКГ-5Д. The excavator is equipped with diesel engines driving d.c. generators which, in turn, supply power to motors of main mechanisms. This allows mining, transferring ore and dumping open-cast rock to transport vehicles in absence of power lines. A remote control system sends diesel operation data to operator's cab.
ЭКГ-5А-УС. The excavator with increased linear parameters of working equipment is intended to develop higher working faces. The machine is capable of dumping rock into large dump trucks of 75 to 110 ton capacity.
ЭКГ-5А-УС excavator and its modifications are supplied to the customer in pre-assembled modules, which simplifies erection procedures.
ЭКГ-12 excavator is the basic model with high performance, wide technological capabilities and operational reliability. The machine meets highest customer's requirements. The following modifications are based on ЭКГ-12:
ЭКГ-12В is intended for mining without drilling and blasting operations. It features a bucket with built-in pneumatic percussion teeth. The use of ЭКГ-12В makes it possible to considerably reduce or completely eliminate drilling and blasting operations and related expenditures, as well as solve the problem of environmental protection.
ЭКГ-9УС is equipped with lengthened working equipment.
ЭКГ-20А excavator is the basic model of high-power and efficient machines for operation in difficult mining, geological and climatic conditions.
Both ЭКГ-12 and ЭКГ-20А are large open-mine power shovel models. A high-power rack crowd and rigid double-girder dipper stick make those excavators indispensable when developing heavy rocky ground.
Design features:

• Rack crowding gear with double-girder dipper stick and all-welded box-section boom ensure efficient development of hard rocky working faces with lumpy or incompletely blown rock.
• Cable bucket hoist without pulley block with automatic load leveling between hoisting rope runs.
• Cast-and-welded bucket with self-tightening tooth fastening. Free-falling bucket bottom with straddled hinges prevents dynamic contact with dipper stick.
• Boom-hoisting winches that simplify erection and repair.
• Ventilating and filtering units for purification of the air injected into the machine housing and for creating excessive air pressure inside the housing.
• Shoe brakes for main mechanisms with pneumatic drives for brake releasing.
• Double-crawler undercarriage. Open crawler tracks with few supports and separate drive systems for each crawler simplify inspection and repair. Drive wheels with replaceable cams are raised to free them from support reactions. Built-in hydraulic cylinders facilitate caterpillar belt tightening. Driving motors feature forced ventilation systems.
• Main excavator metalwork is fabricated out of alloy steel, boom and dipper stick are made out of high-strength steel. Excavators are fitted with cable winches with supply cable capacity of 250m.
• Main excavator mechanisms feature an individual controlled-velocity electric motor and digital control system.
• Automatic lubrication system minimizes maintenance expenditures during operation.

Specifications for open-mine excavators

Parameters	ЭКГ-5А	ЭКГ-5В	ЭКГ-5Д	ЭКГ-5А-УС	ЭКГ-12	ЭКГ-12В**	ЭКГ-18	ЭКГ-20А	ЭКГ-30
Bucket capacity, m³	4.6-6.3	5	4.6-6.3	4.6	12-16	12	16-20	16-25	20-42
Maximum digging reach, m	14.5	14.5	14.5	15.5	21	20.5	22.2	23.4	24.5
Digging reach at machine-base level, m	9.04	9.04	9.04	10.5	14.3	13.8	15	15.2	16
Maximum digging height, m	10.3	10.2	10.3	12.9	15	15	16.3	17	18.5
Maximum dumping reach, m	12.65	12.65	12.65	13.7	18.5	18	18.3	20.9	21
Rear part radius, m	6.7	6.5	6.7	9	10	10	10.7	11.5	12.3
Maximum dumping height, m	5.25	6.5	6.7	5.9	9.3	-	10	10	10
Clearance under revolving platform, m	1.85	1.89	1.89	1.85	3.1	-	3	3	3
Crawler track length, m	5.83	5.83	5.83	5.83	10.3	10.3	-	12.55	-
Caterpillar belt width, m	900/1100/1400	900/1100/1400	900/1100	900/1100	1400/1800	1400/1800	1800	1800	1800
Average unit ground pressure during movement, kgf/cm²	2.1/1.72/1.3	2.19/1.79/1.52	2.1/1.72/1.3	2.26/1.85	2.85/2.25	2.9/2.3	2.6	3.16	3.0
Average unit ground pressure during movement, kPa	205/162/127	215/176/149	205/162/127	221/181	280/220	-	225	320	294
Maximum bucket hanger force, kN	500	500	500	500	1225	-	1568	2000	2305
Estimated cycle length (with 90°-angle turn), sec	23	26	23	29	26	28	27	28	30
Maximum up-grade, rad (°)	0.2 (12)	0.2 (12)	0.2 (12)	0.2 (12)	0.26 (15)		0.26 (15)	0.2 (12)	0.26 (15)
Movement speed on horizontal ground, km/h	0.55	0.55	0.55	0.55	1.1	1.1	1.1	0.88	1.1
Supply network voltage, kV	3; 3.3; 6; 6.6	3; 3.3; 6; 6.6	-	3; 3.3; 6; 6.6	6	6	6	6	6
Electric motor type	Г-Д with МУ*	Г-Д with МУ*	Electric diesel*	Г-Д with МУ*	Г-Д with ТВ	Г-Д with ТВ	Г-Д with ЦУ	ТП-Д	AC current
Network motor power, kW	250	250 (400)	-	250	1250	1250	1250	2250	3000
Network motor power, kW (transformer, kVA)	196	207	195	211	655/688	670	800	1075	1250

* - generator-motor systems (Г-Д) with SCR excitation (ТВ) or microprocessor control (МУ).

Product description

Here: Catalogue ╩ Mining equipment ╩ Crawler-mounted draglines

Crawler-mounted draglines

Category: Mining equipment

Crawler-mounted draglines are mobile machines based on serial open-mine excavators ЭКГ-5A and ЭКГ-12. The machines are intended for mining and overburden operations with rock dumping to dump pit or to transporting vehicles. On customer's request, the machines can be delivered complete with different-size buckets and customized for specific operating conditions.
Crawler-mounted dragline excavators can operate at any small soft rock (sand, clay, marl) opencast mines, at mines where small overburden operations are required, at coal strip mines, at constructional material opencast mines, at gold gravel deposits. The excavator can also be used for digging trenches, constructing canals and dams and operating at technogenic sludge fields.
Design features:

• Principal steel structures (boom, turntable and truck frame) made of rolled alloy steel, ensure safe excavator operation in any season of the year;
• High-alloy steel used for certain units ensures faultless operation under high dynamic loads;
• Bucket geometry ensures high capacity usage and convenient unloading. Bucket nose and teeth are made of manganese steel. That improves wear resistance and increases lifetime;
• Rocking head pulleys and guide pulleys prevent cable escape and reduce cable wear;
• d.c. electric motor designed as generator-motor system with transistor excitation of electric machines and digital control system;
• Separate main unit drives increase equipment lifetime and simplify controls;
• Ventilated drive electric motor enables continuous-duty operation of mechanisms;
• Operator's cab complies with ergonomic requirements. Cab is soundproof with complete overview of head pulleys and guide pulleys as well as working face overview.

Specifications for crawler-mounted draglines

Parameters	ЭДГ-3,2.30	ЭДГ-3,2.30А*	ЭДГ-4.25	ЭДГ-4.25А*	ЭДГ-8.55
Bucket capacity, m³	3.2	3.2	4	4	8
Boom length, m	30	30	25	25	55
Maximum dumping reach, m	28.9	28.9	24.5	24.5	51.6
Maximum dumping height, m	10.65	10.65	8.15	8.15	24.5
Maximum digging depth, m	15	15	15	15	27.5
Caterpillar belt width, mm	1100	1400	1100	1400	1800
Suspended load, kN	94.2	94.2	117.7	117.7	235
Maximum lifting force, kN	172	172	220	220	423.3
Average unit ground pressure during movement, kPa (kgf/m²)	154 (1.57)	127 (1.3)	154 (1.57)	127 (1.3)	225 (2.3)
Theoretical delivery, m³ per hour	270	270	340	340	570
Estimated cycle length with 120°-angle turn and dumping to spoil, sec	42	42	42	42	50
Movement speed, km/h	0.55	0.55	0.55	0.55	1.1
Network motor power, kW	250	250	250	250	1250
Supply network voltage, kV	6	6	6	6	6
Excavator working mass, t	186	198	186	196	630

* - excavators with reduced unit ground pressure.

Here: Catalogue ╩ Mining equipment ╩ Walking draglines

Walking draglines

Category: Mining equipment

Walking draglines are used in mining industry for open-cut mining (coal, shale, ferrous and non-ferrous metal ores, gold, raw materials for chemical industry, refractory materials, etc.).
Purpose: overburden operations with rock dumping to waste area or onto pit edge. The draglines are capable of transferring rock for large distances. For mining hard rock, complete or partial blast loosening is required.
Easy erection, maintenance and repair, reliability, increased availability of mechanisms, high maneuverability, good cross-country ability, wide technological capabilities guarantee high operating efficiency of the machine.
Draglines reliably operate in the temperature range from -50 to +40°C.
We offer draglines of 13 standard sizes with bucket capacity from 11 to 100 m³ and boom length from 75 to 130 m, incl. 6 design versions with reduced unit ground pressure.
Design features:

• The boom is a triangular tubular space truss. The top chord is pre-compressed with force exceeding the working tension. This considerably increases fatigue resistance of the structure, its reliability and service lifetime;
• Truck frame and turntable consist of sections connected with high-strength bolts. This reduces erection labor intensity and shortens erection time;
• Hydraulic dragline walking mechanism provides for smooth machine movement and high maneuverability. Depending on dragline model, the walking mechanism may feature three- or four-point design;
• The smallest dragline model features four-bar crank-hinge walking mechanism with a DC electric motor;
• Depending on the model, the turning mechanism may feature different numbers of planetary or parallel-shaft reduction gear units;
• Dragline models with high unit power feature gearless turning mechanism drive with four, six or eight low-speed motors;
• Rotary support with taper rollers and forged rails;
• Two operator's cabs permit both right-hand and left-hand control to suit the particular conditions of the excavation area. Cabs comply with the latest ergonomic requirements and provide for state-of-the-art comfort degree.
• Automatic centralized lubrication system ensures longer service life time of dragline mechanisms and units with minimal friction power losses while saving lubrication material.
• Main units are driven from DC electric motors designed as generator-motor systems with excitation of electric units from static SCRs. The control system is based on solid state elements.

Data-diagnostic system based on microprocessors allows to control dragline efficiency, power consumption, settings, electric equipment utilization and presence of ventilation flow for electric equipment, as well as the temperature of bearings and excitation windings.
Specifications for walking draglines

Parameters	ЭШ 11.75	ЭШ 20.90	ЭШ 15.100	ЭШ 25.90	ЭШ 20.100	ЭШ 15.110	ЭШ 40.100	ЭШ 30.110	ЭШ 25.120	ЭШ 65.100	ЭШ 40.130	ЭШ 100.100	ЭШ 100.125
Bucket capacity, m³	11	20	15	25	20	15	40	30	25	65	40	100	100
Boom length, m	75	90	100	91	100	110	100	110	120	100	130	100	125
Boom angle, °	32	32	32	32	32	32	32	32	32	32	32	32	35
Suspended load, ton-force	33	63	47	77	63	47	125	95	90	205	125	300	300
Work cycle length (1st category ground), sec	56	60	60	60	62	64	60	64	66	60	62	60	60
Dumping height, m	30.6	38.5	45	37.5	45	52	40	46.2	52.4	38.5	56	43	56
Digging depth, m	38	42.5	46	47	46	50	47	53	57	46	60	47	52
Digging and dumping reach, m	71.4	83	91.5	85.4	91	99	94.8	103.3	117.7	97.6	123	97	118
Clearance under revolving platform rear, m	1.45	1.61	1.61	1.6	1.6	1.6	2.44	2.44	2.44	2.84	2.84	2.75	2.75
Resting base diameter, m	10.8	14.5	14.5	15.3	15.3	15.3	18	18	18	23.5	23.5	27	27
Unit ground pressure during operation, MPa	0.087	0.105	0.105	0.103	0.103	0.103	0.137	0.137	0.137	0.125	0.125	0.18	0.18
Unit ground pressure during movement, MPa	0.145	0.24	0.24	0.187	0.187	0.187	0.2	0.2	0.2	0.2	0.2	0.265	0.265
Shoe dimensions (length and width), m	11.6х1.9	13х2.5	13х2.5	14х2.9	14х2.9	14х2.9	17.2х 3.96	17.2х 3.96	17.2х 3.96	18х3.9	18х3.9	22.5х 4.74	22.5х 4.74
Working mass, t	840	1690	1710	1900	1900	1900	3310	3420	3400	5480	5460	10300	10000
Hoist mechanism power, kW	2х500	2х1120	2х1120	2х1120	2х1120	2х1120	4х1120	3х1120	3х1120	8х1120	6х1120	4х2500	4х2500
Turning mechanism power, kW	2х260	4х250	4х250	4х250	4х250	4х250	4х600	4х600	4х600	6х600	6х600	8х600	8х600
Drag mechanism power, kW	2х500	2х1120	2х1120	2х1120	2х1120	2х1120	4х1120	3х1120	3х1120	8х1120	6х1120	4х2500	4х2500
Movement mechanism power, kW	500	2х400	2х400	2х630	2х630	2х630	2х630	2х630	2х630	4х630	4х630	4х800	4х800
Network motor power, kW	1250	2500	2500	2500	2500	2500	2х2250	2х2250	2х2250	4х2250	4х2250	4х3600	4х3600
Supply network voltage, kV	6	6	6	6	6	6	10	10	10	10	10	10	10
Electric motor type	ГД with ТВ	ГД with ТВ*	ГД with ТВ*	ГД with ТВ*	ГД with ТВ*	ГД with ТВ*	ГД with ТВ*	ГД with ТВ*	ГД with ТВ*	ГД with ТВ	ГД with ТВ	ГД with ТВ	ГД with ТВ

• - excavators may be equipped with the following systems: SCR motor (ТП-Д) and direct frequency converter - induction motor (НПЧ-АД)