Dr. BOY Injection Technology and Engineering Philosophy
Dr. BOY is a globally recognized specialist in small and medium-tonnage injection molding machines, combining German engineering with long-lasting mechanical design, high process precision, and compact machine architecture. Dr. BOY machines are developed specifically for applications that demand stability, low energy consumption, and high repeatability under continuous industrial production conditions.
The BOY 20 E PRO represents one of the most mature and well-balanced embodiments of this engineering philosophy for industrial manufacturing environments.
BOY 20 E PRO - Industrial Robustness in a Compact Footprint
The BOY 20 E PRO is an injection molding machine designed for continuous and demanding industrial operation, featuring a clamping force of 200 kN. With an exceptionally compact footprint of approximately 1.8 m², it provides a unique solution for production facilities where space efficiency is critical.
The machine's cantilever-type (tie-bar-less) clamping unit allows unobstructed access to the mold area from three sides, significantly improving ergonomics, mold handling, and overall production efficiency.
Clamping Unit - Mechanical Stability and Accessibility
The clamping unit of the BOY 20 E PRO reflects Dr. BOY's signature tie-bar-less design philosophy. This construction enables:
Faster mold mounting and removal
Easy integration of insert molding and robotic automation
Safe and ergonomic part removal
From a technical perspective:
Clamping force: 200 kN
Maximum daylight opening: 400 mm
Adjustable mold opening stroke: 200 mm
Moving platen load capacity: 150 kg
These parameters make the BOY 20 E PRO suitable for a wide range of molds, from single-cavity tools to multi-cavity production molds.
Injection Unit - Wide Screw Range and Process Flexibility
The BOY 20 E PRO can be configured with SP 11, SP 15, and SP 52 injection units. In total, seven different screw diameters ranging from 12 mm to 32 mm are available, allowing the machine to process both small, high-precision parts and medium-volume technical components.
Technically, this provides:
Maximum theoretical shot weight of approximately 58 g (PS)
Maximum specific injection pressure up to 2500 bar
High injection speeds with stable and consistent filling behavior
This flexibility ensures reliable and repeatable processing of thermoplastics with a wide range of viscosities.
Servo-Driven Pump System - Next-Generation Energy Efficiency
One of the most significant technical advantages of the BOY 20 E PRO is its electronically controlled, servo-driven variable displacement pump system. This system:
Adjusts motor speed dynamically according to actual demand
Reaches maximum flow in less than 70 ms
Completely stops the motor when hydraulic power is not required
As a result, the machine achieves:
Energy savings of up to 50%
Minimal heat generation
Elimination of oil cooling in most applications
Quiet and low-vibration operation
These benefits significantly reduce the cost per machine hour.
Procan ALPHA® Control System - Advanced Process Management
The BOY 20 E PRO is equipped with Dr. BOY's multi-patented Procan ALPHA® control platform, which provides:
Closed-loop control of injection, holding pressure, and back pressure
Up to 8-stage injection and pressure profiles
Real-time process monitoring and production tracking
An intuitive, operator-friendly user interface
This advanced control system minimizes operator dependency and ensures stable, repeatable production from cycle to cycle.
Hydraulic System and Mechanical Durability
The machine features a 145 bar system pressure, a 65-liter integrated oil tank, and a compact hydraulic circuit designed for durability and reliability. The integrated oil tank results in:
Fewer hoses and connection points
Reduced risk of leakage
Simplified maintenance
The robust machine frame ensures reliable performance over many years of continuous industrial operation.
Ejector System and Part Removal Safety
The BOY 20 E PRO includes a three-sided open ejector area, significantly enhancing part removal safety and automation compatibility. Technically:
Maximum ejector stroke: 80 mm
Push / pull force: 18.1 / 12 kN
This design supports both manual and robotic part removal with high safety and efficiency.
Automation Interfaces and Optional Equipment
The BOY 20 E PRO is fully prepared for automation, supporting:
Integrated picker and handling interfaces
EUROMAP 12 robot connectivity
USB, Ethernet, and data communication options
Integrated hot runner control units
This makes the machine suitable for production environments ranging from semi-automatic setups to fully automated manufacturing cells.
Typical Application Areas
The BOY 20 E PRO is ideally suited for:
Industrial series production
Technical and functional plastic components
Electrical and electronic housings
Compact, automation-ready production lines
Energy-efficient modern manufacturing facilities
Why Choose the Dr. BOY 20 E PRO?
The BOY 20 E PRO combines a compact footprint, high mechanical durability, servo-driven energy efficiency, and advanced control technology in a single, well-balanced platform. It provides a reliable, economical, and technically mature injection molding solution for both entry-level industrial production and long-term series manufacturing.
In production environments where space efficiency, energy consumption, and process reliability are critical, the BOY 20 E PRO stands as one of the clearest demonstrations of Dr. BOY's engineering excellence.