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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1994 dual 8 pound Hartig Davis-Standard accumulator head blow molder

Ref #




Shot Capacity (pounds)

Head Configuration



Hartig Davis-Standard 




50 x 30 inch clear platen, 3.5 inch 150 HP extruder, part take-out, dual bottom blow stands 




ONE (1) 1994 HARTIG MODEL SMP35-(2)8-5030-S90

3-1/2 inch diameter 24:1 L/D Hartig High-Torque Extruder driven by a 150 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 174 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 150 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.

50 inch wide x 30 inch high clear platen press with three (3) heavy duty tie bar construction, 
giving the operator unlimited access for ease of, part removal and mounting of molds.  
The following specifications apply:
A.   Clamp Tonnage:                         90 tons
B.   Maximum Platen Opening:                50 inches
C.   Minimum Platen Opening:                12 inches
D.   Vertical Height Adjustment             +4 inches
E.   High speed press closing             1200 inches per minute

The platens and end frames are fabricated from 1020 steel.  The end frames are designed to 
support the three tie bars. The heavy duty platens are clamped and opened by two hydraulic 
cylinders per platen.  These cylinders are mounted on the end frames with the actuating rods 
connected to the platens for even and complete clamping force distribution. Hartig's unique 
platen timing chain system assures symmetrical clamp closing.  Included are flexible hydraulic 
hoses and piping between the press and unitized base.  For operator safety, a hydraulic and 
electrical safety system is provided to prevent press movement while press gates are open.  
The press area is enclosed with expanded metal to ensure safe operation.

PRINCIPLE OF DESIGN:   The system is designed to store energy in the dwell period of the 
machine cycle (high pressure clamp).  The energy is stored in the form of pressure by using 
accumulators, which reduces the size of pumps, motors and charging valves.

COMPONENTS: An A.C. motor drives a pressure compensated pump, which primary function 
is high pressure clamp.  The secondary pump function is to charge the three accumulators.  
The accumulators are used for press and head movement and programming tooling.  
Sequencing of the pump and isolation of the programmable tooling is accomplished by a 
small manifold.  This manifold also contains a pressure relief valve for pump protection, a 
solenoid operated dump valve, and gauges required for pressure set-up. A large manifold 
using cartridge valves actuates the press and head functions.  Press speed is accomplished 
by selected valves having adjustable mechanical limiters. The single head design will use 
the mechanical limiters for ram forward and fill rate.

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.

Includes required regulators, filter and valving for air blow and pre-blow

Dual 8 pound Hartig Accumulator Head on 25 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 10 inch diameter maximum and 2 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.  Barber-Coleman MACO 8000 Microprocessor 
control system with touch screen operator's station for control of the following functions:  Control 
temperature on all zones displayed via operator's station. (up to 96 zones available)  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. 12" programmable touch sensitive CRT display. Parison programming controls of up to 
100 points per head.   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.

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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