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Bucket wheel excavators (BWE)
The Joint Stock Company UNEX has been manufacturing bucket wheel excavators for more than 50 years. So you can consider UNEX to be an experienced specialist in manufacturing of large-scale machinery for use in open pit-mines. The UNEX team of well-trained specialists is able and ready to react to all its customers individual requirements. More than 130 custom-built excavators and reclaimers can be found in e.g. Czech Republic, Russia and the Ukraine, in Bosnia and Herzegovina, Macedonia, Bulgaria, Poland and Slovakia.
There are two types of bucket wheel excavator: Compact and Classical. The division depends on the possibility of repeated assembly and disassembly.
1. It is not possible to assemble and disassemble the Classical BWE. The excavator moves on either a caterpillar or walking undercarriage. Their capacity ranges from 1 200 to 6 500 m3/h and the specific cutting force from 90 to 168 kN/m. According to the adjustable distance between the wheel and the axis of the machine, classical BWEs are divided into two groups: excavators with a telescopic bucket wheel boom (KU 300 and KU 800) and without a telescopic bucket wheel boom (K 2000).
2. The Compact BWE can be repeatedly assembled and disassembled. Their capacity ranges from 400 to 2 800 m3/h and the specific cutting force from 25 to 145 kN/m.
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Rated capacity 1.7mx
Rated weight 3500kg
Operating weight 9700kg
Automatic leveling ability Yes
Static tilting load 58.8KN
Max breakout force 120KN
Max drawing force 90KN
Max grade ability 30
Max.dump height 3050mm
Max.dump reach 1260mm
Min.ground clearance 410mm
Wheel base 2600mm
Tread 1870mm
Height with bucket at full raise 4870mm
Lifting time 5.5sifull load j
Total cycle time(lifting, dumping, lowering) 9.67sifull loadj
Overall dimensions (l~w~h)mm 6990~2420~3000
Engine Yuchai iChina famous enginej
Model YC6108G
Type In line, water cooled, four stroke, dir.inject
Rated power 92KW
Rated speed 2200r/min
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Opencast Mining Systems
Opencast mine
Germany
1x bucket wheel excavator SR1301/1532
refurbishing, bucket wheel head with drive unit
driving power of bucket wheel 500 kW
cutting height 26 m
excavation depth 5 m
number of buckets 14
year of construction 1986
coal 3500 m/h
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Sandvik bucket-wheel excavators are designed to strip overburden and mine coal, lignite and various soft minerals continuously. With capacities from 150-10000 m3/h (loose), they are capable of mining formations with compressive strengths of up to 20 MPa. Controlled by state-of-the art PLC systems with extensive automation possibilities, they have ergonomic, user-friendly interfaces for operator comfort, quick familiarization and sustained high productivity. Since they are of modular construction, Sandvik bucket wheel excavators are easy to optimize for different applications. All units are custom-built and made to order.
Our standard range of compact bucket wheel excavators is designed for small to medium-size opencast mines. All models are of rugged, rational construction, highly productive for their size and weight and very reliable. Models with higher capacities are of the C-frame design. Basic data for the most popular models is given in the table below.
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Productivity
CUMMINS QSB6.7 electronic engine,the emission meets EPA TIER standards
High drive speeds with 4 forward and revrese gears
Responsive and accurate hand control with a single joystick with integrated KD function
Double-brake pedals simplify simultaneous driving and mechanical operations
Economical
Torque converter is matched to the engine to ensure maximum power transfer
Hydraulics employ a dual-pump system and converging and self-unloading function to reduce energy loss
Improved air per-filter system improves overall engine efficiency in dusty conditions
Reliability
Vehicle has a strong flexible frame that will withstand load and torsion
stresses in the toughest working conditions
Key components from world class suppliers
Warranty and service programs available
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The 936H wheel loader is one of brand-new series loaders developed independently by our company through introducing the advanced experience of the loader manufacturers all over the world, for which adopted the designs of the advanced appearance and the interior decoration of saloon car, featuring the reasonable and unified arrangement. The separated torque converter-transmission system supplied by the domestically-renowned manufacturer makes the entire machine more reliable in performance，easier to repair and greatly enhances its reliability, versatility, comfort and operability. Comparing with the loaders manufactured by other companies, 936H wheel loader produced by our company has the following advantages: new and fresh appearance, shortest three-time cycle time (9.9s); maximum load and unload height (3230mm), minimum turning radius (4929mm) and farthest unload distance (1168mm)
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Bucket wheel and bucket chain excavators are important products designed for mining the overburden. The first bucket chain excavator of our own construction called D 800 was manufactured in 1952, with an output of 1 050 m3/h and moved on rails. The most effective bucket chain excavator is marked RK 5000 and it achieves an output of 5 000 m3/h of excavated overburden.
Our production range covers also the biggest digging wheel excavator of the Czech Republic, the K 10000, which has been working with an output of 10 000 m3/h of excavated overburden in Blina mine since 1978.
Bucket-chain and bucket-wheel excavators are designed according to specific requests of customers, always with respect to the actual mining conditions in which they will operate.
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Bucket Wheel Excavators (BWE) are continuous cutting machines for soft to semi hard materials like clay, sand, gravel, marl and their blendings as well as lignite and hard coal. Tenova TAKRAF Bucket Wheel Excavators excavate a wide range of capacities between 200 and 16000 m/h and at working bench heights from less than 5 m to maximal 51 m.
The Bucket Wheel Excavator is favorable connected to a belt conveyor system with or without a Mobile Transfer Conveyor intermediately installed or a cross pit spreader transferring the material to the waste dump or the raw material stockpile.
According to local mine conditions Compact and Large Bucket Wheel Excavators are offered - whereas the selection mostly is determined by required cutting height and width (working block).
The characteristic parts of a Bucket Wheel Excavator are the cutting wheel with buckets, the wheel boom, the superstructure with counterweight boom, the substructure, the undercarriage with crawler tracks and a transfer boom to the bench conveyor (or a connecting bridge to the loading unit). All main parts are designed to meet the demands of the project regarding optimization, standardization and maintenance. Therefore, Tenova TAKRAF stands with more than 100 years of Bucket Wheel Excavator-experience.
Bucket Wheel Excavators are among the largest terrestrial vehicles ever constructed - the biggest machine built, the Tenova TAKRAF SRs 8000, has a weight of 14.200 t and moves 240,000 m of overburden per day.
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The complete set of bucket wheel excavator includes the bucket wheel excavator, the A-type belt conveyer, B-type belt conveyer, 1800 Hopper, spreader. The process of material excavated by the bucket wheel: Bucketed material--pass through belt -- Conveyer -- Hopper-- Spreader-- Material stock.
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ABI's Flap Wheels are manufactured from strips of high quality aluminum oxide material closely packed and radially bonded to a metal center. AbI's flap wheels are more durable and provide a longer and cooler cutting action than is possible using conventional discs. Recommended for cleaning, deburring, blending, and polish grinding on stainless steel, aluminum, plastic, and wood.
Characteristics:
- Cool running
- Fast cutting
- Non-loading
- Durable
- Also available with threaded center
Applications:
- Weld grinding
- Surface Preparation
- Blending
- Cleaning
- Deburring
Tools:
- Portable Grinder
- Right Angle Grinder
- Automatic Equipment
- Robotics
- Power Tools
- Hand tools
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Designed to deliver a consistent finish with a uniform rate of cut, Carborundum flap wheels wear away, continually exposing fresh abrasive. Conformable to most shapes, they are available in conventional cloth and a non-woven mesh in coarse to fine grit. For blending stainless steel, and removing flash and parting lines.
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PFERD flap wheels are designed for grinding flat or irregular surfaces. Because of their softness and flexibility, the coated abrasive laminae adapt easily to the work piece.
Fields of Application: Good finish of flat, concave and convex surfaces. Internal grinding of stainless steel containers. For steel and non-ferrous metals.
PFERD flap wheels are produced with high quality coated material and high flap count to provide very high removal rates and extra long service life.
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Type B 1
HT-Abrasive-Flap-Wheel with plastic center
Abrasive flaps on a solid resin center, which mounts directly onto machine shafts. Centers with recesses can be supplied on request. The flexibility of the abrasive flap wheel allows unexperienced operators to obtain optimal grinding results.
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The abrasive mop wheel is particularly suited for the fine and flexible surface grinding. It matches the contours of any workpiece perfectly. KLINGSPOR has the right abrasive mop wheel for virtually every application and for nearly all types of material.
A distinction is drawn between two kinds of abrasive mop wheels: the hard and the soft mop wheel
These properties are achieved through different corpus diameters, flap lengths and packet assemblings
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Resin fiber discs
Long life, high stock removal for use on metals and welds.
Description and Application :
-A premium quality grain designed for long life, high stock removal and cool cutting action.
T-he sharp, heat-treated grain electrostatically coated to a heavy duty vulcanized fibre backing with heat resistant phenolic resins. Fast, cool cutting performance.
-Applications include weld grinding, blending, finishing, deburring and high production work. Also for automotive industry, plastics, ferrous metals, paint, body fillers and fiberglass.
Resin Fiber discs are available in various grains:
A/O - for cutting, debburing and finishing on metals, welds and car body repair. grits: 16-120
Z/A - for high speed steel, stainless steel and hard steel. Rough grinding to finishing. grits: 16-120.
S/C - for non-ferrous materials, fiberglass, stone and masonry. grits: 16-400.
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Flap discs
Flap Discs are used for:
Intermediate and finishing of welds.
Deburring, rust removal and snagging.
Suitable for almost all ferrous & non-ferrous materials
Excellent for surface finishing
Flap Disc specifications:
A/O Flap Discs - Coated with Aluminium Oxide.
Z/A Flap Discs - Coated with Zirconia Alumina.
S/C Flap Discs - Coated with Silicon Carbide.
CGW Flap discs specification and uses:
A/O - Alloy steel and low-alloy steel
Z/A - High-alloy, stainless and heat treated steel. High tensile non ferrous metals
S/C - Marble, Stone, Glass & non Ferrous metals
CGW Flap Discs sizes:
100mm X 16mm (4" x 5/8")
115mm X 22mm (4-1/2" x 7/8")
125mm X 22mm (5" x 7/8")
150mm X 22mm (6" x 7/8")
180mm X 22mm (7" x 7/8")
CGW Types of Flap Discs:
T-27 - Used when working on flat grinding surfaces. Most efficient when used at a 0-15 degree angle.
T-29 - Conical type has an angle excellent for contour and edge work. Best at more dramatic angle of 15 to 25 degrees.
The types are available in 2 densities: Regular and XL.
The XL has approximatly 60% more material then the regular
Z/A - Zirconia Alumina coated, for high alloyed steel, stainless steel and heat-treated steel.
Used for blending and finishing in one operation, CGW flap discs replace the traditional T-27 depressed centre discs and fibre discs. Suitable for:
Grinding and finishing of welds
Decurring, rust removal and snagging
Excellent for surface finishing
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Hommel + Keller is specialised in the production of customized knurling wheels according to individual application requirements. The product line Zeus Custom contains knurling wheels which are not part of the extensive standard product programme, but developed with our customers according to their individual application needs. The product line covers for example conical knurling wheels, convex or concave knurling wheels, but also specific product solutions for packaging machines (transport rolls) or profile rolling machines. Test our experience. We are looking forward to your specific applications. Zeus.High profile tools!
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We offer a broad range of knurling wheels
for form knurling
cut knurling
as well as customized knurls according to individual requirements. Our standard product programme consists of more than 170000 knurling wheels made of HSS, PM, HM. Please contact us for further assistance.
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Dies for infeed and through-feed rolling processes are available in diverse profile configurations to meet the highest quality demands.
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Jacobsen's impact wheel marker is an add-on module for positively marking defective wheels.
The impact marker physically deforms defective wheels, ensuring that they cannot be accidentally mistaken for good ones.
The wheel marker is standalone, turn-key module that can be added to any process in a wheel foundry. It can be installed in-line anywhere where defective wheels are removed from the process.
Jacobsen's impact wheel marker positively identifies defective wheels by visibly denting the rim. A wheel that has been dented is both visually and functionally defective, and cannot be accidentally used as good.
The marker is a complete turnkey unit, requiring only power, trigger and compressed air inputs. The marker uses a special pneumatic/hydraulic cylinder that generates high pressures without the need for hydraulics.
The marker will work for wheels from 12" to 22" in diameter and from 4" to 12" in width.
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