Timberline Machinery Inc.
7 Pittsburgh Ave                           Nashua, New Hampshire 03062, USA
Phone (603) 889-7233         Fax (603) 889-7300        Call Ed Makepeace

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1995 dual 20 pound Hartig Davis-Standard accumulator head blow molder

Ref #




Shot Capacity (pounds)

Head Configuration



Hartig Davis-Standard 





36 inch head centers, 72 x 58 inch clear platen, 4.5 inch 200 HP extruder, part take-out 


ONE (1) 1995 HARTIG MODEL MCP-45D20-7258-S200

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

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.


* 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
     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


* The Hartig hydraulic power system was designed and developed to work 
efficiently to operate the press, accumulator head(s) and auxiliary 

* 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.

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.

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

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