Injection Molding Machines and IML Robots

HYBRID PERFORMANCE TOGGLE TECHNOLOGY

Dynamic • Powerful • Efficient

Features the TACTUS™ Controller
The JANUS iT Series are 5-point double toggle clamp, 300-, 360- and 450-tonne models.

The Negri Bossi JANUS iT hybrid injection moulding machines allow simultaneous (overlapping) movement of functions including plasticising screw rotation, ejection and cores during clamp travel. The injection servo valve, managed by power link technology, provides a very fast response and high precision in the injection phase achieving a standard speed of 600mm/sec.

A key target for the entire machine design is energy efficiency by utilising hybrid technology. This includes installing the latest servo-driver and hydraulic technology with the option of electric driven clamp movements.

The injection unit features a reciprocating screw, with injection capacities from 600g to 2365g (PS) across the machine range. JANUS iT hybrid injection moulding machines are equipped as standard with:

• NEW TACTUS™ Touchscreen PC with Powerlink, user-friendly interface and full range of control parameters
• Smart Flex clamping unit with generous tie bar spacing to accommodate larger moulds
• Moving platen that rides on linear bearings for excellent platen parallelism and reduced energy consumption
• Long ejector strokes
• Robust in-line swinging injection unit with quick release barrel change facility
• Prepared for AMICO 4.0 wireless remote service access

CLAMPING UNIT

• 5-point double toggle clamp
• Euromap or SPI platen configuration
• Chrome plated tie bars
• Linear bearings for moving platen guidance and support
• Powered mould height control
• Automatic central lubrication system served by electric pump
• Three‐stage mould closing speed profile
• Three‐stage mould opening speed profile
• Closed loop control of Mould closing and opening movements governed through proportional control valve
• Digital reading of moving platen position displayed on operator interface
• Auto-adjustment of Mould thickness and clamping force
• Digital control and reading of cross‐head position on operator interface
• Digital reading of clamping force displayed on operator interface
• Two‐stage ejection speed profile
• Ejection force control
• Digital reading of ejector position displayed on operator interface
• Repeated ejection with stroke and speed control
• Ejector with overlapped movement on opening stroke
• Ejector return signal
• Freely-programmable multiple core pulling control

INJECTION UNIT

• Injection unit with in-line hydraulic cylinder
• Injection unit sliding on linear bearings
• Swivelling injection unit for simple plasticizing screw removal and cleaning
• Quick barrel change system
• General purpose screw profile, suitable for a wide range of thermoplastic materials
• Bimetallic barrel
• Nitrided screw
• Injection unit driven by two cylinders to assure perfect nozzle centring
• Ceramic heater bands
• Alarm threshold for set temperature range
• Injection speed and pressure profiles
• Switch to holding pressure triggered by screw position, hydraulic pressure or time
• Digital reading of screw position displayed on operator interface
• Adjustable screw rotation speed profile
• Screw rotation delay
• Adjustable back‐pressure profile
• Digital reading of back‐pressure displayed on operator interface
• Decompression before and after screw recovery
• Intrusion moulding program
• Auto purge program
• Stainless steel hopper

HYDRAULIC SYSTEM

• Single fixed displacement gear pump with powered asynchronous motor.
• Proportional pressure valve for accumulator charge
• Dimensioned accumulators battery
• Injection servo valve
• Overlapped ejector movement during opening
• Digital reading of hydraulic circuit pressure displayed on operator interface
• Monitoring of oil level, temperature and filter blockage
• Oil temperature control system
• Automatic cooling water shut-off valve
• Oil preheating program
• Oil filter in pump delivery and/or return circuit
• Oil cooling heat exchanger
• Oil gauge

ELECTRICAL SYSTEM

• Servo drive
• Interlocked main switch to prevent the electrical cabinet from being opened when press is energized
• Digital control of plasticizing cylinder heating
• Fan for air circulation in the electrical cabinet
• LED indicators on solenoid valves
• Conforms to Euromap or UL electrical standards

COOLING CIRCUIT

• Flow meter with adjustable independent circuits with water temperature and flow rate indication (One circuit is used for throat cooling with the remaining circuits available for mould cooling)

BASE

• Part discharge outlet accessible on three sides
• Sound insulated motor‐pump assembly housing
• Anti-vibration mounting pad holes
• Lubricating oil recovery system

SAFETY DEVICES

• Constructed in compliance with essential requirements of Machinery Directive 2006/42/CE and subsequent amendments
• All models CE certified by an European certification organisation
• Devices comply to European Standard EN 201 and ANSI/SPI B151.1-2007
• Rear mould protection with double interlocking device and pump drive motor shutdown
• Monitoring of correct operation of hydraulic and electric safety devices
• Interlocked nozzle purge guard