Product Descriptions
General Overview - Positioning of the BOY 50 E Platform
The BOY 50 E is Dr. BOY's entry-level injection molding machine in the 500 kN clamping force class, yet it clearly exceeds typical expectations in terms of standard equipment and technical capability. Decades of machine-building experience and the BOY Injectioneering philosophy are combined in this model, bringing together compact design, high precision, and energy efficiency.
The machine offers a very wide processing spectrum, covering thermoplastics, elastomers, silicones including LSR, thermosets (duromers), as well as metal and ceramic injection molding feedstocks used in PIM technology.
Clamping Unit - 500 kN Two-Platen Cantilever Design
The BOY 50 E features a four tie-bar, two-platen clamping unit with a cantilever-type design. Compared to conventional three-platen systems, this structure requires less floor space while providing excellent and unobstructed access to the mold area.
Clamping unit technical data:
- Clamping force: 500 kN
- Tie-bar spacing (H × V): 360 × 335 mm
- Maximum daylight between platens: 650 mm
- Maximum adjustable mold opening stroke: 400 mm
- Minimum mold height: 250 mm
- Maximum mold weight on moving platen: 400 kg
- Mold opening force: 38 kN
- Mold closing force: 24.4 kN
- Maximum ejector stroke: 80 mm (optional 130 mm or 150 mm)
- Ejector forward / return force: 20.4 / 13.5 kN (optional 42.7 / 30 kN)
Thanks to the cantilever design, no additional space is required for robots, pickers, conveyors, or automation equipment.
Injection Unit - SP 82 Thermoplastic Unit
As standard, the BOY 50 E is equipped with the SP 82 injection unit optimized for thermoplastic processing. Seven different screw diameters and four injection unit variants significantly increase application flexibility.
SP 82 injection unit technical data:
- Screw diameters: 24 / 28 / 32 mm
- Screw L/D ratios: 22 / 18.6 / 16.3
- Maximum theoretical stroke volume: 43 / 58.5 / 76.5 cm³
- Maximum theoretical shot weight (PS): 39.1 / 53.2 / 69.5 g
- Injection force: 86.5 kN
- Theoretical injection rate: 115.2 / 156.8 / 204.8 g/s
- Maximum specific injection pressure: 1,913 / 1,405 / 1,076 bar
- Maximum screw stroke: 95 mm
- Nozzle contact force / pressure: 48 kN
- Nozzle retraction stroke: 205 mm
- Screw torque: 180 / 290 Nm
- Screw speed: 250 - 400 rpm, infinitely adjustable
- Screw recovery force: 38 kN
- Heating power (nozzle + barrel): 5,800 W
- Material hopper capacity: 20 liters
These values support production from thin-wall components to medium-sized technical parts.
Servo-Hydraulic System and Energy Efficiency
The BOY 50 E is equipped with a servo-motor-driven hydraulic pump system. Hydraulic power is generated only when required. In addition, Dr. BOY's patented pressure intensifier system maintains clamping force during injection and cooling without the need for an additional pressure-holding pump.
Energy and hydraulic data:
- Installed drive power: 11 kW
- Total installed power: 16.8 kW at 400 V
- Hydraulic system pressure: 180 bar
- Oil tank capacity: 200 liters
- EUROMAP 6 dry cycle time: approximately 1.9 s at 252 mm stroke
This configuration ensures low energy consumption and very quiet operation.
EconPlast Technology - More Efficient Plasticizing
The BOY 50 E can be optionally equipped with the EconPlast plasticizing unit. This technology reduces screw wear, improves melt homogeneity, and stabilizes the plasticizing process.
EconPlast advantages:
- Lower energy consumption
- More stable melt flow
- Reduced material degradation
- Extended screw and barrel service life
Control System - Procan ALPHA
The BOY 50 E is fitted with Dr. BOY's proven Procan ALPHA control system.
Control system capabilities:
- 8-stage injection speed control
- 2-stage injection pressure control
- 8-stage holding pressure control
- Holding pressure switchover based on pressure, stroke, or time
- Closed-loop injection and back-pressure control
- Production monitoring and part counting
- USB, Ethernet, and OPC interfaces
- EUROMAP 67 robot interface
Machine Dimensions and Layout Advantages
Within the 500 kN class, the BOY 50 E stands out with its compact footprint.
Physical dimensions:
- Dimensions (L × W × H): 2,970 × 1,095 × 2,010 mm
- Footprint: 3.25 m²
- Net weight (without oil): 2,250 kg
These dimensions allow highly efficient use of production floor space.
Material Compatibility and Application Fields
The BOY 50 E is suitable for the following materials and applications:
- Thermoplastics
- Elastomers and LSR
- Thermosets (duromers)
- Metal and ceramic injection molding feedstocks (PIM)
- Technical components and automotive parts
- Electronic and medical products
Conclusion - Why Choose the Dr. BOY 50 E?
The Dr. BOY 50 E injection molding machine delivers a very well-balanced production platform with its 500 kN clamping force, compact cantilever design, servo-hydraulic energy management, and broad injection unit options. EconPlast technology, the patented pressure intensifier system, and an advanced control architecture ensure long-term stability, low operating costs, and consistent process reliability.
For applications where floor space efficiency, process security, and material versatility are critical, the BOY 50 E represents a reliable and flexible injection molding solution.
