Product Name
| Brand | Pinzhichuangsi |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | YAW-300 |
| Max Test Force | 300 kN |
| Force Loading Rate Drive | 3-phase 0.75 kW Hydraulic Pump |
| Platen Spacing (max) | 230 mm |
| Platen Diameter | φ155 mm |
| Force Measurement Range | 30–300 kN |
| Force Indication Accuracy | ≤ ±1% of reading |
| Force Resolution | 0.01 kN |
| Hydraulic System Rated Pressure | 25 MPa |
| Piston Diameter | φ130 mm |
| Piston Stroke | 80 mm |
| Overall Dimensions (W×D×H) | 850 × 620 × 1340 mm |
| Net Weight | 450 kg |
Overview
The Pinzhichuangsi YAW-300 Digital Display Compression Testing Machine is a statically loaded, hydraulically actuated mechanical testing system engineered for precision compression strength evaluation of rigid construction materials. It operates on the principle of controlled hydraulic force generation via a fixed-displacement gear pump, with load application regulated through a manually operated flow control valve and monitored in real time by a high-stability electronic load cell and integrated digital display controller. Designed to ASTM C109/C39/C78 and ISO 7500-1 Class 1 compliance requirements, the YAW-300 delivers repeatable, traceable force measurement across its full 30–300 kN operational range—making it suitable for quality control laboratories, prefabricated component testing facilities, and civil engineering material certification workflows.
Key Features
- Hydraulic loading architecture with a 25 MPa rated pressure system and φ130 mm piston, ensuring stable force delivery and minimal thermal drift during extended test cycles.
- Digital force readout with 0.01 kN resolution and ≤ ±1% indication error (per ISO 7500-1), calibrated against certified deadweight standards.
- Integrated overload protection: automatic pump motor shutdown when applied load exceeds 309 kN (103% of full scale), preventing mechanical overstrain and safeguarding operator safety.
- Fixed-position spherical seat alignment mechanism ensures uniform stress distribution across cylindrical or cuboidal specimens, minimizing eccentric loading errors per ASTM E10 and ISO 376 guidelines.
- Robust cast-iron frame with reinforced load train geometry, supporting 450 kg net weight and maintaining rigidity under peak 300 kN compressive loads.
- Self-contained hydraulic circuit with built-in filtration, pre-filled oil reservoir, and sealed return-loop design to minimize maintenance frequency and fluid contamination risk.
Sample Compatibility & Compliance
The YAW-300 accommodates standard concrete cubes (150 mm), mortar prisms (40 × 40 × 160 mm), fired clay bricks (240 × 115 × 53 mm), and natural stone specimens up to 155 mm in diameter and 230 mm in height. Its φ155 mm circular platens conform to ISO 4012 and GB/T 2611 requirements for compression testing interfaces. The system supports routine verification per ISO 7500-1 Annex A and is compatible with third-party calibration services traceable to NIM (National Institute of Metrology, China) or equivalent national metrology institutes. While not inherently 21 CFR Part 11 compliant due to lack of audit trail logging, its analog-digital hybrid controller meets GLP documentation prerequisites when paired with external lab notebooks or validated data capture protocols.
Software & Data Management
The YAW-300 features an embedded digital controller with local LCD display—no PC interface or proprietary software is included. All measurements are shown in real time: current load (kN), loading rate (kN/s), and peak hold value. Data retention is maintained after power interruption, preserving the last recorded maximum force. For laboratories requiring electronic data archiving, optional RS-232 or analog 0–10 V output modules can be retrofitted to feed into LIMS or custom SCADA systems. Raw output signals comply with IEC 61000-4 electromagnetic immunity standards, enabling stable operation in shared industrial laboratory environments.
Applications
- Compressive strength testing of Portland cement mortars per ASTM C109 and EN 196-1.
- Structural concrete cube and cylinder evaluation per ASTM C39, ISO 4012, and GB/T 50081.
- Quality assurance of load-bearing masonry units including fired clay bricks, autoclaved aerated concrete (AAC) blocks, and refractory ceramics.
- Mechanical characterization of geopolymer binders, fiber-reinforced cementitious composites, and recycled aggregate concretes in R&D settings.
- Verification of precast element conformity prior to site installation under ISO 13791 and EN 13369.
FAQ
What standards does the YAW-300 meet for calibration and verification?
It complies with ISO 7500-1 Class 1 accuracy requirements for static force measurement systems and supports verification using standard reference load cells traceable to national metrology institutes.
Can the machine perform controlled-rate compression tests?
Yes—the manual flow control valve enables consistent loading rates; typical rates range from 0.5 to 10 kN/s depending on specimen stiffness and operator adjustment.
Is hydraulic oil included and what type is recommended?
One factory-filled reservoir of ISO VG 46 anti-wear hydraulic oil is supplied; replacement should use mineral-based AW46 fluid meeting DIN 51524 Part 2 specifications.
Does the system support tensile or flexural testing?
No—it is configured exclusively for uniaxial compression; bending or tension requires separate fixtures and load frames not provided with this model.
What maintenance intervals are recommended for long-term reliability?
Oil filtration and level inspection every 500 operating hours; annual recalibration of the load cell and pressure relief valve verification are advised per ISO 376 and manufacturer service bulletins.
