|7 Pittsburgh Ave Nashua, New Hampshire 03062, USA|
|Phone (603) 889-7233 Fax (603) 889-7300 Call Ed Makepeace|
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Shot Capacity (pounds)
36 inch head centers, 72 x 58 inch clear platen, 4.5 inch 200 HP extruder, part take-out
1995 HARTIG DAVIS-STANDARD ACCUMULATOR HEAD BLOW MOLDER ONE (1) 1995 HARTIG MODEL MCP-45D20-7258-S200 SINGLE PRESS BLOW MOLDING SYSTEM DUAL 20 POUND HEADS ON 36 INCH CENTERS 4.5 INCH 200HP EXTRUDER PART TAKE-OUT EXTRUDER SECTION 4-1/2 inch diameter 24:1 L/D Hartig High-Torque Extruder driven by a 200 HP D.C. drive motor. Hartig's advance design high performance barrier type MC4 feedscrew machined from SAE 4140 steel with Stellite hardened flight lands. This screw is rated at 600 PPH of HDPE. Screws can also be custom designed for your specified polymer upon request. Reducer DH200 has a rating of 250 HP @ 100 RPM with a 1.0 service factor. Thrust bearing is a Timken T-611 with a B-10 life of 242,400 hours at 5,000 PSI and 100 RPM. Tangential opening feed throat machined from high strength ductile iron, cored for water cooling and includes a hardened liner. The barrel is fabricated from SAE 4140 steel with bimetallic liner and has a pressure rating 10,000 PSI. A safety rupture disc is supplied at the discharge end. The barrel is divided into four (4) zones of ceramic heaters for heating and individual high air volume blowers for cooling. The barrel and heaters are covered with insulated guards. Extruder drive is a 200 HP, D.C., 1750 RPM constant torque system. It includes an open drip-proof motor, cooling blowers and filter. All drive controls are mounted in the main extruder control panel. 460 volts/ 3 phase/ 60 hertz. PRESS SECTION - 72 inch wide x 58 inch high clamping section (M.C.P.) * Hartig's press designs are based on the unique principal of pulling the molds closed to achieve full clamp tonnage. This concept allows all custom Hartig presses to bring the mold faces in parallel, as the end frames have no load on them. * The platens are closed in high speed with individual, small bore cylinders to minimize oil flow for maximum efficiency. High pressure clamping is accomplished by rotating knuckle clamps which, when engaged, pull the molds closed. These short stroke, large bore cylinders generate high tonnage, but with little oil flow. This method assures no deflection of the end frames and no axial stressing of the tie bars. * Further, Hartig's MCP has platens which ride on ways. This takes the dead platen and mold weight off the tie rods to further assure no deflection takes place to disturb parallelism. * To bring the platens together on center repeatedly, dual chain synchronization is applied. Mounted out of the press working area, the adjustable chain systems are located on the front and back of the platens so that forces are distributed equally. Easy adjustment can be made for off center close or adjustment. * Also, standard on all presses is a safety system of electrical and hydraulic interlocks as well as whiskers to sense if an operator is in the press area. Emergency stops are located at five points around the machine and the entire press area is enclosed by expanded metal. This assures that all pinch points are guarded for safe operation. A. Clamp Tonnage: 200 tons B. Maximum Platen Opening: 65 inches C. Minimum Platen Opening: 18 inches D. Vertical Height Adjustment +4 inches E. High speed press closing 1200 inches per minute ACCUMULATOR HEAD Dual 20 pound Hartig Accumulator Head on 36 inch centers with first-in, first-out flow configuration proving optimum parison uniformity. The unique coaxial dual hydraulic cylinders provides a rapid parison drop and high precision parison programming. The dual head tooling size range is approximately 15 inch diameter maximum and 6 inch diameter minimum. The head is designed for rapid color change, ability to process difficult materials. CONTROLS: * The control panel is a three-door NEMA enclosure with main power disconnect shock mounted on the unitized base wired 460 volts/ 3 phase/ 60 hertz. The following components are included: * Barber-Coleman MACO 8000 Microprocessor control system with Lumitech display panel for control of the following functions: Control temperature on all zones displayed via operator's station. The system provides independent zone temperature control and can be independently tuned. Total machine sequential control up to 100 independent timer functions available depending on number of sequence modules in system. Solid state cartridges for program and control parameter storage. Parison process control with individual weight and die gap settings and graphic display of profile setpoints. The exclusive use of individual control modules allows initial system to be easily expanded to meet future requirements. Sequence control is accomplished by the use of an IBM or IBM compatible personal computer using industry standard JIC graphic symbols. * D.C. drive controls Amp meter Tachometer Variable speed control * Motor starters for all hydraulic AC motors * Mercury contactors on heat zones * Fuse block and fuses * Control transformer * A portable machine operator's station is included HYDRAULICS * The Hartig hydraulic power system was designed and developed to work efficiently to operate the press, accumulator head(s) and auxiliary functions. * The power unit is a bladder accumulator based system which is charged by a pressure compensated pump. A gear pump is piggybacked to the main pump with oil. The filter has a bypass alarm and the tank is equipped with low level and high temperature alarms. Additionally, a shell and tube heat exchanger is outfitted with a cooling valve that is controlled through the Maco 8000. * Valving is cartridge type for the highest oil flow and fastest response of any valve design available today. Due to the cartridge valve's design, the wear characteristics are far superior to that of spool valves. All valves are manifold mounted and utilize electrical connectors with integral LED's and surge suppressors. * Press and ram speed are independently proportionally variable through the MACO 8000 for tight process control and shock-free performance. * The power unit is floor mounted with integral drip pan, sight level gauge, pressure gauges, and for ease of maintenance, all port and valve designations are stamped on the manifold. PNEUMATICS Includes required regulators, filter and valving for air blow and pre-blow FILTRATION & COOLING: An A.C. motor driving a fixed vane pump provides oil flow through a filter and a thermostatic controlled heat exchanger. The filter is low pressure spin on type having optional elements for water removal. A high performance heat exchanger utilizes fins to extract heat, requiring fewer tubes and 50% less water. SAFETY: A cam operated valve located at the press gate is used for hydraulic safety of gate position. In open position, the valve prevents head and press movement. The pilot logic of the directional cartridge valves are controlled by small solenoid cartridge operated valves which must be energized at the same time for each machine functions. This lessens the possibility of a single valve sticking allowing an undesired continuation of motion. All necessary valves are manifold mounted and the entire system is pre-piped and prewired. BASE Main base is a unitized construction and serves as a mounting platform for extruder and accumulator head. OEM (original equipment manufacturer) NOTE: At the time of manufacture, Hartig was owned by and this machine was manufactured by Battenfeld ... subsequently however, Battenfeld sold Hartig to Davis-Standard who continued production as well as parts and service support for Hartig blow molders.
----------------------------------- NOTE: Although machinery descriptions are believed to be accurate and are from sources deemed reliable, they are not guaranteed and we invite your inspection prior to purchase.
We are one of the largest stocking dealers of plastics molding machinery in the United States, and have been selling plastics machinery worldwide for over 35 years. Our inventory is constantly changing, and we are often liquidating complete plants. Please keep in contact with us so that we can keep you informed of our latest purchases.
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