KJ GROUP YLJ-24T Manual Benchtop Hydraulic Pellet Press
| Brand | KJ GROUP |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | YLJ-24T |
| Instrument Type | Manual Hydraulic Pellet Press |
| Maximum Pressure | 24 Ton (235 kN) |
| Gauge Pressure Range | 0–40 MPa (0–400 kgf/cm²) |
| Pressure Stability | ≤1 MPa/5 min |
| Piston Stroke | 20 mm |
| Working Chamber Dimensions | 105 mm × 94 mm × 340 mm |
| Quick Preload Function | Yes |
| Overall Dimensions | 280 mm × 210 mm × 500 mm |
| Net Weight | 48 kg |
Overview
The KJ GROUP YLJ-24T Manual Benchtop Hydraulic Pellet Press is a precision-engineered laboratory instrument designed for reproducible, high-force sample compaction under controlled mechanical loading. Operating on the principle of hydraulic force multiplication, the press delivers up to 24 metric tons (235 kN) of compressive load via a manually actuated dual-stage hydraulic system—combining rapid preloading with fine pressure regulation. This architecture ensures consistent densification of powders and granular materials into geometrically defined pellets, discs, cylinders, or custom-shaped specimens for downstream analytical characterization. Its compact footprint and rigid C-frame construction minimize lateral deflection during compression, supporting high dimensional fidelity and inter-run repeatability—critical for quantitative spectroscopic, diffraction, and elemental analysis workflows.
Key Features
- Manual hydraulic operation with integrated quick-preload mechanism enables efficient initial sample consolidation followed by precise final pressure application.
- Pressure stability maintained at ≤1 MPa over 5 minutes, minimizing creep-induced density variation across replicate samples.
- Robust steel frame and hardened piston assembly ensure long-term mechanical integrity and resistance to deformation under repeated 24-ton loading cycles.
- Adjustable stroke limit (up to 20 mm) accommodates diverse die heights and specimen thickness requirements without tooling modification.
- Open working chamber (105 mm × 94 mm × 340 mm) allows compatibility with standard and custom dies—including stainless steel, tungsten carbide, and borosilicate glass inserts.
- Ergonomic lever design reduces operator fatigue; intuitive pressure gauge (0–40 MPa range) provides real-time analog feedback calibrated per ISO 6789-1 for torque and force tools.
Sample Compatibility & Compliance
The YLJ-24T supports a broad spectrum of inorganic and organic particulate materials—including ceramic oxides (e.g., Al₂O₃, ZrO₂), battery cathode precursors (LiCoO₂, NMC), geological standards (rock powders, soil extracts), pharmaceutical excipients, and polymer blends. It complies with fundamental mechanical safety requirements outlined in ISO 12100 and meets structural integrity benchmarks referenced in ASTM E1019 (for metal powder compaction). While not certified for GMP manufacturing environments, its design facilitates GLP-aligned documentation: pressure history can be logged externally via compatible digital gauges, and all contact surfaces are accessible for cleaning validation per laboratory SOPs. The absence of electrical or pneumatic components eliminates electromagnetic interference—ensuring safe co-location with FTIR, XRF, and XRD instrumentation.
Software & Data Management
As a manually operated hydraulic press, the YLJ-24T does not include embedded firmware or proprietary software. However, it is fully compatible with third-party digital pressure transducers (e.g., Omega PX409 series) and data acquisition systems that support USB/RS-485 output. When integrated with compliant hardware, pressure-time profiles may be recorded and exported in CSV or TDMS format for traceability. Such configurations support audit-ready records aligned with FDA 21 CFR Part 11 requirements when paired with validated electronic signature workflows and secure storage protocols. Routine calibration certificates for external sensors are recommended annually per ISO/IEC 17025 guidelines.
Applications
- Preparation of pressed pellets for wavelength-dispersive X-ray fluorescence (WDXRF) and energy-dispersive XRF quantification of major and trace elements in geological, metallurgical, and environmental samples.
- Density-controlled compaction of ceramic green bodies prior to sintering studies—enabling correlation between green density and final microstructural properties.
- Standardized tablet formation for FTIR transmission analysis, where uniform thickness and minimal scattering artifacts are essential for baseline-corrected spectral deconvolution.
- Production of reference discs for calibrating hardness testers, dilatometers, and thermal conductivity analyzers.
- Rapid prototyping of composite electrode layers in battery R&D, using conductive carbon/polymer mixtures at pressures below 15 MPa.
FAQ
What is the maximum achievable pressure in kilonewtons (kN)?
The YLJ-24T delivers a nominal maximum force of 24 metric tons, equivalent to 235.2 kN at standard gravity (9.8 m/s²).
Can this press be used with evacuated or inert-atmosphere dies?
Yes—the open-frame design permits integration with glovebox-compatible die holders and vacuum-sealed compaction chambers (e.g., Swagelok fittings), provided external pressure containment is engineered separately.
Is the pressure gauge NIST-traceable?
The analog gauge is factory-calibrated; for metrological traceability, users should employ an external NIST-traceable transducer mounted inline with the hydraulic line.
What maintenance is required to sustain pressure stability performance?
Biannual inspection of O-rings and hydraulic fluid (ISO VG 32 mineral oil) is recommended; replacement intervals depend on usage frequency and ambient temperature per DIN 51524 Part 2.
Does KJ GROUP provide die customization services?
Yes—standard die sets (13 mm, 25 mm, 32 mm diameter) are available ex-stock; custom geometries (e.g., stepped, multi-cavity, or segmented dies) can be fabricated upon engineering drawing submission.
