Purchase of a large turning machinery |
| 01-19 22:35:57 来源： 作者： |
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Purchase of a large turning machinery Inquiry (采购产品): Purchase of a large turning machinery Elina Redburn W.W.D.L. Inc. 7227 N. 16th St. Suite 240 Phoenix, AZ. 85020 602-616-7115 To Whom It May Concern: Dear Sirs, Please let me introduce myself. My name is Elina Redburn. I represent a Russian company “OMZ – SPEZSTAL” who seeks the purchase of heavy tooling machinery to assist in the refurbishing a vast aging infrastructure. We are interested in obtaining (or projecting and manufacturing) of high-production technological equipment for green turning (roughing), and also finishing-out. The equipment is necessary during processing of large-sized raw-stocks of revolutional shapes, namely: backup rolls, generator rotor and steam turbines, and also screw shafts, hydroturbine shafts, chill molds, etc. (see attachment 1 for the technical documentations of the equipment) The second piece of equipment is necessary during processing of large-sized raw-stocks of revolutional shapes, namely: shell rings, rings, disk plates and etc., for petrochemical production. diameter of rotary table mm 6300 Parameters of processing workpiece the most diameter mm 7000 the most length mm 5500 the most mass kg 200 000 (see attachment 2 for the technical documentations of the equipment) I would look forward to receiving any information you could supply with regard to specific products, pricing and shipping that you could make available. In the attached documents you will find technical requirements for the machinery we would like to purchase. Your prompt attention to this matter is appreciated. Sincerely Elina Redburn, WWDL, Inc. Attachment 1 (8 pages) Limited liability company “OMZ – SPEZSTAL” Business unit “Mechanical operation” Production training service Approved by Chief engineer OMZ “SPEZSTAL” Strebkov V.Y. “29.05.2008” TECHNICAL REQUIREMENT on purchasing (projecting and manufacturing) of metal-cutting equipment Executive director of business unit Orlov A.A. “Mechanical operation” Head of SPP Nazarenko A.N. Head of technological department Galyamichev V.A. Production manager Zacharov A.V. Head of repair service Rogov M.A. 1. General part 1.1 Warrant work execution on the technical requirement is necessity in obtaining (or projecting and manufacturing) of high-production technological equipment for green turning (roughing), and also finishing-out. The equipment is necessary during processing of large-sized raw-stocks of revolutional shapes, namely: backup rolls, generator rotor and steam turbines, and also screw shafts, hydroturbine shafts, chill molds, etc. 2. Data about projecting technological equipment 2.1 Purpose: a) draft mechanical operation (roughing), turning method, cylindrical and end surfaces of smooth and step-shaped shafts from carbonic, alloy, rust-resistant and special steels with finishing of task geometry, precision (precision rating of received shapes IT9-8) and ruggedness of surfaces till settled on drawings at the same equipment or other metal-cutting machines. b) crude slotting of transverse slots by turning or rotor milling operation in steam turbines, with finishing of task geometry, precision (precision rating of received shapes IT9-8) and ruggedness of surfaces at the same equipment or another lathe tool. 2.2 Product identification, for which metal-cutting equipment is projected: - rotor, shafts, screw shafts, support shafts of milling tools, chill molds, hulls and other shapes. 2.3 Main tasks: 2.3.1 There is need to define reliable supporters of technological equipment from whom we are able to obtain or it will be projected and manufactured required equipment in short terms on arranged price LLC “OMZ Spezstal”. 2.3.2 To send a commercial offer with datasheet of machines to our address, that is complied with following technical characteristics in this table: Table of technical characteristics of machines № position parameter name unit measure machine parameter with cargo capacity up to 250t. with cargo capacity up to 160t. with cargo capacity up to 100t. 1 Overall diameter of workpiece mm 3600 3200 2600 above foundation slab above tool head 3 100 2500 1800 2 overall length of mounting product mm 20 000 16000 20 000 3 size of taper in spindle on GOST 8593-57 280/1:7 200/1:7 140/1:7 4 center in front spindle STiD 280*75C 200*75C 140*75C 5 Height of cutter bit installed in cutter support mm 100 80 80 6 height of centers mm 2200 1 750 1 450 7 Admitted weight of workpiece in clutches of headstocks and dead heads or in centers kg 250 000 160 000 100 000 Headstock (main motion drive) 8 spindle speed limit, not less rev/min 0,25-80 0,4-140 0,6-160 9 maximal rotational torque kg/min 28 000 25 000 17 000 Dead head 10 Center in tailstock spindle of dead head on GOST 18259-72 280/75С/1:7 200/75С/1:7 140/75С/1:7 Tool head 11 maximal cutting force with one tool head, not less kg 20 000 17 000 15 000 12 quantity of tool heads 2 13 power traverse of tool head, not less mm/min 0-5000 fore/aft transverse 14 Sliding regulation of line feeds’ tool head, not less mm/min 0-5000 15 sliding regulation of transverse feeds’ tool head, not less mm/min 0-5000 16 Taper rate of work part multiple-purpose supply at the whole traverse stroke of upper slides it is provided by Number Software Backrests 17 diameter of detail installed in :closed backrest mm 200-600500-10001000-1 500 200-600500-10001000-1500 250-650630-1000 open backrest mm 930-3 100 930-2 500 930-1800 C-shaped (Performance C) 200-600500-900900-1 500 200-600500-900900-1 500 200-600500-900900-1 500 18 power of main drive kW 250 200 140 Technical characteristics of metal-cutting machines can be changed on mutual consent with Business unit “Mechanic operation” OMZ “Spezstal” 2.3.2 As a case study for operation of different types shapes, we enclose some sketches of manufactured production: Name of drawing/sketch № sketch detail mass in sketch, kg Forging of rotor shaft 1.1 120500,00 rotor sketch for heat treatment 1.2 81025,00 Forging of rotor shaft 2.1 112900,00 rotor sketch for heat treatment 2.2 85000,00 Forging of rotor shaft 3.1 41360,00 Shape of rotor shaft at ultra sound control 3.2 32524,18 Forging of rotor shaft 4.1 120485,00 Shape of rotor shaft at ultra sound control 4.2 106570,30 Forging of rotor shaft 5.1 93300,00 Shape of rotor shaft at ultra sound control 5.2 77476,63 Forging of rotor shaft 6.1 80060,00 Shape of rotor shaft at ultra sound control 6.2 66260,36 Forging of rotor shaft 7.1 207260,00 Shape of rotor shaft 7.2 165353,00 Forging of chill mold 8.1 115000,00 Shape of chill mold at ultra sound control 8.2 29700,00 Forging of chill mold 9.1 140359,00 Shape of chill mold for heat treatment 9.2 80024,00 2.4 Operating mode: Heavy, the heaviest. 2.5 Supposed analogy of construction of lathe tools: On the enterprise OMZ “Spezstal” business units “Mechanic operation” are used following lathe tools: 1A670 1A675 1A672 1A680 1682 1683 1A685 Attachment 2 Limited liability company “OMZ – SPEZSTAL” Business unit “Mechanical operation” Production training service Approved by Chief engineer OMZ “SPEZSTAL” Strebkov V.Y. “03.06.2008” TECHNICAL REQUIREMENT on purchasing (projecting and manufacturing) of all-round vertical lathe – milling machine Executive director of business unit Orlov A.A. “Mechanical operation” Head of SPP Nazarenko A.N. Head of technological department Galyamichev V.A. Production manager Zacharov A.V. Head of repair service Rogov M.A. 1. General part 1.2 Warrant work execution on the technical requirement is necessity in obtaining (or projecting and manufacturing) of high-production technological equipment for green turning (roughing), and also finishing-out. The equipment is necessary during processing of large-sized raw-stocks of revolutional shapes, namely: shell rings, rings, disk plates and etc., for petrochemical production. 2. Data about projecting technological equipment 2.1 Purpose: a) draft mechanical operation (roughing), turning method, cylindrical and end surfaces of smooth and step-shaped shafts from carbonic, alloy, rust-resistant and special steels with finishing of task geometry, precision (precision rating of received shapes |
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