VERTICAL MACHINES
Vertical Machines offer flexibility and footprint advantages
DESMA vertical machines (deemed 968 series) uses a clamping system that opens and closes vertically. DESMA offers two basic options; a closing from the top with lateral or side injection (what we call our 968 T series machines) and a closing from the bottom with injection through the upper bolster (what we call our 968 ZO series). There are attributes for each type and the molding process including tool design typically drives the decision for ZO or T.
Top injection (ZO) is most common in the market due to the flexibility and footprint of the machine. Top inject machines have a movable lower bolster that opens and closes every cycle. The upper bolster or fixed bolster does not move. Top inject machines, depending on size of the machine may require a platform or pit, unless the DESMA patented BENCHMARK clamping system is selected. The BENCHMARK clamp uses high speed machine tool technology to slide the high pressure hydraulic cylinder in and out from under the bolster, allowing for a very low resting position for demolding.
Side inject machines (T series) inject rubber laterally into a clamping station that has a fixed lower bolster but a movable upper bolster. T series machines typically require the injection unit to disengage from the mold or cold runner package prior to opening. A typical application of DESMA 968 T machines are stack mold designs with a center mounted cold runner (CRB) for the production of thin engine gaskets. T machines also offer a short distance for the unvulcanized rubber to travel due to the orientation of the injection unit. T machines have increased options for very large shot volumes compared to injection units that reside on top of a press (ZO).
Contact your Regional Sales Engineer to discuss if a ZO or T machine is the correct machine for your application and specific details.
For technical data on DESMA 968 ZO (top injection) machines see information here.
For technical data on DESMA 968 T (side injection) machines see information here.
ServoGear
With its energy-saving drive, ServoGear hydraulics defines the industry standard for rubber injection molding machines.
Save energy consumption
FlexInterlock
The FlexInterlock system with properly design molds allows for quick mold changes.
Set core pull interlocks yourself
INJECTION UNITS
The FIFO-A injection unit is DESMA’s most successful injection unit and is ideally suited for medium to very large injection volumes. Due to a low material intake height in combination with a fully liftable nozzle, the best possible conditions for a high operating comfort are given.
The FIFO-Advanced injection unit offers further advantages. In addition to further improved injection accuracy, the very stable overall design allows significantly larger silicone stopper systems to be combined. This drastically reduces refill cycles.
The FIFO-B injection unit with integrated hydraulic nozzle lift is used in particular for DESMA horizontal machines. In principle, this injection unit is also optimally suited for injection molding machines with lateral injection into the mold parting line (T series).
The FIFO-C injection unit is ideal for the smallest to medium injection volumes. Due to the fixed nozzle, a very short nozzle length is given. Our FIFO-C is the standard injection unit for C-frame injection molding machines and small DESMA horizontal machines.
QuickLock
The hydro-mechanical quick clamping system QuickLock also makes ‚hot‘ mold changes possible within a few minutes. In combination with DESMA preheating units, set-up times can thus be significantly minimized and the productivity of the injection molding machines increased.
Shorten set up times
PROCESS VISUALIZATION
DESMA offers two PC based control systems to provide the ultimate user experience in process control data archiving and built in diagnostic capabilities.
Full overview of the production process
- 24″ Glass multi – touch capacitive display
- Trend based monitoring LED machine status display with 3 color system (Green / Yellow / Red)
- Dual USB ports for external data storage and programmable multi – level user access by USB coded key
- Key machine functions operated by 2 toggle keys – Start / Acknowledgement button and E-stop
- PC based operator interface with reliability of industrial PLC hardware
- SSD storage for high reliability with data back-up via UWF
- Separate display and operator interface PC
- Fully closed loop control of all hydraulic functions
- Advanced graphics for monitoring of all machine and process details
- Number of screen pages reduced 50% from DRC2020
- Machine documentation resident on operator panel
- Advanced networking capability
- Customizable machine automatic sequence via F(x) row with freely selectable drag and drop editing
- Process change and error logging
- 19″ TFT resistive touch screen display
- Freely programmable tactile touch feedback
- Dual USB ports for external data storage and programmable multi-level user access by USB coded key
- Key machine functions operated by 2 toggle keys – Start/Acknowledgement button and E-Stop
- PC based operator interface with the reliability of industrial PLC hardware
- SSD storage for high reliaility with data back-up via UWF
- Integrated display and operator interface PC
- Fully closed loop control of all hydraulic functions
- Advanced graphics for monitoring of all machine and process details
- Machine documentation resident on operator panel
- Advanced networking capabilities
- Customizable machine automatic sequence via F(x) row with freely selectable drop and drag editing
- Process change and error logging
- Onboard process data logging
BENCHMARK LOCKING SYSTEM
Unrivaled low operating heights in combination with exceptional stroke ratios offer the best conditions for ergonomic operability. With the fully hydraulic BENCHMARK clamping system, even large machines can be operated perfectly and largely without platforms or foundations. The upper edge of the hot platen can be reached up to 6,300 kN clamping force at a height of 750 mm. Even at clamping forces up to 1,000 kN, there is no need for platforms. Mold height adjustment is also automatic via laser.
Best ergonomic operability