| UNILOY UMA-35-70-3-DS Twin Head Blow Molding Machine, |
| Item Number | 9557 |
| Quantity | 1 |
| Machine | UNILOY UMA-35-70-3-DS Twin Head Blow Molding Machine, |
| Description | 1996 YOC.
(2) - 2.75" extruders, (2) - 6.6 lb. accumulator heads, 51.2"W x 31.6"H platens.
A) PRESS ASSEMBLY
Clamping unit is stand alone design with rigid framework of welded tubular steel construction. Hydraulic actuated platen movement is perfectly synchronized by means of rack and gear system and is fully supported by four heavy-duty diagonal tie bars. Vertical adjustment of the accumulator head and extruder platform is possible via electric motor for varying head to mold distance, and horizontal adjustment, via electric motor is possible, for off-center molding conditions or complete access of platen area to facilitate mold and head tooling changes.
Clamp Specifications:
Platen Width 51.2" (1300mm).
Platen Height 31.5" (800mm).
Clamping Force 64 tons.
Maximum Daylight 51.2" (1300mm).
Hydraulic Closing Pressure - 2000 psi.
B. HYDRAULIC SYSTEM
Main hydraulic oil tank is mounted below the extruder base with easy access. Hydraulic accumulators are used to operate platen open/close movement, parison push-out, blow stand and auxiliary functions. High/low oil temperature alarm, low level alarm, sight level gauge, oil pressure gauges, oil filter, and heat exchanger are standard. A separate pump and hydraulic tank is used for parison programming.
Hydraulic Specifications:
Main Motor - 60 HP, AC.
Parison Programming Motor - 10 HP, AC.
Operating Pressures - 2000 psi.
C. PNEUMATIC SYSTEM
All valves are rack mounted at one location for easy access, 32 Mac valve. Standard pneumatic control functions include pre-blow air through the head and pre-blow/air blow through the bottom blow stand assembly.
D. ACCUMULATOR HEADS: 6.6 LBS. (3 KG)
Material feed through the accumulator head is first in/first out. A uniform parison wall distribution is achieved by dual overlapping internal flow pattern. Processing HMWPE, PP and a variety of engineering plastics is possible. A separate hydraulic power pack provides accurate control of parison programming. Includes pre-blow air through the head.
Accumulator Head Specifications:
Accumulator Head Capacity - 6.6 lbs (3.0 kg).
Maximum Head Tooling Diameter - 7.9" (200mm).
Number of Heating Zones - 4.
Total Heating Power - 12 kw.
E. EXTRUDER ASSEMBLY
Each extruder assembly is composed of nitrided steel barrel and screw. The feed zone is water cooled and grooved to increase throughput. The screw is a conventional, low compression design with mixing tip for processing HDPE, HMWPE, and 2 HLMI HDPE at very low melt temperatures. Closed loop temperature control is maintained by heaters and air cooling fans.
The extruder base is moveable along three axes:
Electric motor moves the extruder platform and head vertically for adjustment of distance between head and mold.
Electric motor allows longitudinal movement of extruder and head or separation of extruder from the head.
Extruders can be manually swiveled to allow extraction of the screws without moving the accumulator heads.
Additional items include: material hopper with sight glass, swivel hopper for easy material discharge, and melt pressure transducer.
Extruder Specifications:
Screw Diameter - 2.75" (70mm).
L/D Ratio- 24:1.
Extruder Drive - 68 HP DC drive.
Screw Speed - 0-85 rpm.
Number of Heating Zones- 4.
Heating Power- 15.9kw.
F. CONTROL CABINET OPERATOR CONTROL PANEL
Barber Colman Maco 8000 microprocessor, including full sequence control of machine functions.
Single channel 100 point parison programmer with graphic display of parison thickness profile.
Individual temperature controllers for all heat zones, Insta-set module for machine memory storage. Diagnostics program.
460/3/60 main power hook-up.
The operator control panel is conveniently mounted at the clamp with all operator control buttons and selector switches for the set-up and operation of the machine.
G. ADDITIONAL ITEMS INCLUDED WITH THE MACHINE:
One (1) automatic part remover system.
One (1) automatic press lubrication system.
One (1) proportional valve for variable clamp speed controlled through the Maco 8000.
Two (2) sets of head tooling (size to be specified by customer),
Four (4) 5-zone water manifolds with flow control attached to each platen for mold cooling.
Two (2) retracting top blow pin assembly through the head.
One (1) two step take-out device. |
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