Jiubin Instruments JB-50T Hydraulic平板 Vulcanizing Press
| Brand | Jiubin Instruments |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | JB-50T |
| Price Range | USD 4,200 – 7,000 |
| Total Force | 500 kN (50 metric tons) |
| Working Pressure | 16 MPa |
| Platen Size | 400 × 400 mm |
| Unit Platen Pressure | 3.125 MPa |
| Number of Heating Zones | 2 |
| Platen Spacing | 125 mm |
| Piston Stroke | 250 mm |
| Piston Rising Speed | 12 mm/s |
| Heating Power per Platen | 3 kW |
| Max Operating Temperature | 300 °C |
| Net Weight | ~1,200 kg |
| Gross Weight | ~1,600 kg |
| Motor Specifications | High-Pressure Pump — 1.5 kW, 1400 rpm |
| Overall Dimensions | 1295 × 450 × 1686 mm |
Overview
The Jiubin Instruments JB-50T Hydraulic Vulcanizing Press is a dual-zone, electrically heated, high-precision compression molding system engineered for laboratory-scale and pilot-line vulcanization of elastomeric compounds, thermoset plastics, and phenolic resins. Based on the fundamental principle of controlled thermal compression—where time, temperature, and pressure are precisely synchronized to drive crosslinking reactions—the JB-50T delivers repeatable cure profiles essential for R&D validation, quality control benchmarking, and process qualification in rubber and plastic manufacturing. Its 500 kN nominal clamping force and 300 °C maximum platen temperature accommodate standard ASTM D3182, ISO 34-1, and GB/T 16584 test configurations, enabling direct correlation with industrial production presses while maintaining compact footprint and energy-efficient operation.
Key Features
- Hybrid hydraulic power unit integrating parallel low-pressure/high-flow and high-pressure/low-flow gear pumps—ensures rapid platen closure (<12 mm/s piston speed) without excessive motor loading or thermal lag.
- Dual independently controlled heating platens (400 × 400 mm each), each rated at 3 kW, equipped with TED-2301 digital temperature controllers offering ±1 °C stability over 30–300 °C range and real-time PID-adjustable setpoint programming.
- Automatic pressure compensation system maintains constant compressive load during thermal expansion of mold stacks, minimizing density variation and improving dimensional repeatability across multi-layer curing cycles.
- Robust C-frame architecture with hardened steel guide columns and precision-ground platens ensures parallelism tolerance ≤0.03 mm/m and long-term rigidity under cyclic 16 MPa working pressure.
- Integrated safety interlocks including overtemperature cutoff, hydraulic pressure relief valves, emergency stop circuitry compliant with IEC 60204-1, and mechanical platen limit switches.
Sample Compatibility & Compliance
The JB-50T supports standardized test specimens per ASTM D5332 (vulcanized rubber), ISO 34-1 (tear strength), and GB/T 528 (tensile properties), as well as custom molds up to 380 × 380 mm footprint. Its 125 mm inter-platen spacing accommodates stacked molds for simultaneous multi-sample evaluation—critical for statistical process control in compound development. The system meets CE machinery directive requirements (2006/42/EC) and incorporates design elements aligned with GLP-compliant environments, including traceable calibration documentation for temperature and pressure sensors. Optional NIST-traceable sensor certification and audit-ready log export functionality are available upon request.
Software & Data Management
While the base configuration operates via standalone TED-2301 controllers, optional RS-485 Modbus RTU interface enables integration with third-party SCADA or LIMS platforms for centralized parameter logging and alarm management. Temperature and pressure time-series data can be exported in CSV format for post-processing in MATLAB, Python, or Minitab. All firmware versions comply with IEC 62443-3-3 cybersecurity baseline standards for industrial control systems, and audit trails—including operator ID, setpoint changes, and fault events—are retained for ≥90 days in non-volatile memory.
Applications
- Rubber formulation optimization: Cure kinetics profiling (t90, scorch time, modulus development) using embedded die swell or rheometer-compatible tooling.
- Thermoset processing validation: Compression molding trials for epoxy, silicone, and phenolic compounds under ISO 20434-defined thermal ramp profiles.
- Quality assurance testing: Batch-to-batch consistency verification for automotive seals, conveyor belts, and gasket materials per QS-9000 or IATF 16949 protocols.
- Educational laboratories: Hands-on instruction in polymer physics, crosslinking thermodynamics, and press hydraulics for materials science and chemical engineering curricula.
FAQ
What is the maximum recommended mold thickness for two-layer operation?
For stable thermal uniformity and mechanical alignment, mold stack height should not exceed 100 mm per layer when operating both platens simultaneously.
Does the JB-50T support vacuum-assisted molding?
No—this model is designed exclusively for atmospheric-pressure compression molding. Vacuum assist requires optional external chamber integration, which is not factory-certified.
Is the temperature controller compatible with external data acquisition systems?
Yes—via optional RS-485 Modbus RTU output, allowing synchronization with external DAQ hardware for multi-sensor correlation studies.
What maintenance intervals are specified for hydraulic oil and filter replacement?
Per manufacturer guidelines: hydraulic oil change every 2,000 operating hours or annually (whichever occurs first); suction and pressure filters replaced every 500 hours.
Can the JB-50T be configured for ISO 17025-accredited calibration?
Yes—Jiubin Instruments provides UKAS-recognized calibration certificates for temperature sensors (±0.5 °C) and load cells (±0.5% FS) upon request, with full uncertainty budgets and traceability documentation.
