High precision, stable performance, and energy efficiency. Ideal for producing a wide range of plastic products.
3,850 kNClamping Force
1,072 gShot Weight
340 g/sInjection Rate
11.5 tMachine Weight
Product Overview
High-capacity Servo Hydraulic Machine for Precision Molding
Crosses the one-kilogram published shot-weight threshold and supports molds within 680 × 680 mm tie-bar spacing.
Typical evaluation areas include logistics components, automotive interior parts, large housings. Final machine selection must be checked against the mold dimensions, resin, part weight, cycle target and auxiliary equipment.
High-precision servo control for stable, efficient operation
High-rigidity clamping unit for accurate mold opening and closing
Energy-saving servo motor system with fast response
User-friendly multi-language control interface
High-quality hydraulic components for long service life
Safety door and electrical interlock protection
Wide application range for packaging and technical components
Global after-sales service and spare-parts support
Technical Specification
BST-3850A Machine Parameters
Parameter
Unit
BST-3000A
BST-3400A
BST-3850A
BST-4500A
INJECTION UNITScrew Diameter
mm
56 / 58
58 / 60
63 / 65
73 / 75
Shot Size (Theoretical)
cm³
788 / 845
858 / 918
1120 / 1192
1590 / 1680
Shot Weight
g
709 / 760
772 / 826
1008 / 1072
1430 / 1512
Injection Pressure
MPa
178 / 166
180 / 168
175 / 165
160 / 152
Injection Rate
g/s
210 / 226
254 / 272
320 / 340
358 / 378
Screw L/D Ratio
L/D
21.6 / 21
22.2 / 21.5
22.7 / 22
21.2 / 20.6
Preplasticizing Stroke
mm
—
—
—
380
Screw Speed
rpm
0-180
0-180
0-160
0-180
Nozzle Diameter
mm
20
20
20
20
CLAMPING UNITClamping Force
kN
3000
3400
3850
4500
Toggle Stroke
mm
560
580
660
700
Mold Thickness
mm
220-600
270-650
280-680
280-710
Space Between Tie Bars
mm
580×580
640×640
680×680
720×720
Ejector Stroke
mm
160
160
160
160
Machine Details
Core Components Ensure Reliable Performance
Intelligent Control
Microcomputer Control
The machine is controlled by a TECHMATION microcomputer, providing reliable operation and a high level of automation.
Large LCD screen
Multi-language interface: Chinese, English, Russian, Spanish, French, Arabic and more
Stores up to 100 sets of mold parameters
Automatic alarms display the problem location for easier maintenance
Plasticizing Unit
Screw & Barrel
The screw feeds raw material and supports the processing of a wide range of plastics. It provides strong plasticizing performance and high injection speed. Resistance heating coils heat the barrel, while a cold-screw protection device prevents operation until the preset temperature is reached.
Hydraulic System
Hydraulic Pump
The hydraulic control system manages actuator movement. Key hydraulic components use internationally recognized brands such as Japan YUKEN, delivering fast response and high energy efficiency. An optional energy-saving hydraulic system can reduce energy consumption by approximately 50%.
Power System
Driving Motor
The AC driving motor supports 380 V three-phase or 220 V single-phase, 50 Hz power configurations. It efficiently converts electrical energy into mechanical power to start and drive the injection molding machine.
Applications
Wide Range of Applications & Products
Packaging & Closures
Caps, lids, bottles and packaging parts.
Medical Components
Medical devices, connectors and precision parts.
Daily-use Products
Household items, containers and consumer products.