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**Hydraulic Servo Universal Compression & Tensile Testing Machine (GW-111D)**
This advanced testing machine is designed for comprehensive mechanical property analysis, especially for prestressed steel strands. The GW-111D model is equipped with a Lenovo computer, HP printer, large-scale electronic extensometer, optical encoder, and full-featured general-purpose testing software. This combination allows users to easily perform a wide range of tests. It also features a specialized steel strand extension device to ensure the specimen fractures in the middle, significantly improving test success rates.
The software supports the generation of six types of curves: force-displacement, force-deformation, stress-displacement, stress-deformation, force-time, and deformation-time. It also includes self-diagnostic functions to detect and resolve issues automatically. Users can review detailed test data, including tensile strength, non-proportional extension strength, elastic modulus, and elongation, making this machine ideal for industrial enterprises, research institutes, universities, and quality supervision departments.
**Main Features:**
- **Model No.:** GW-111D
- **Max Load Capacity:** 1000 kN
- **Test Range:** 50–1000 kN
- **Accuracy:** ±1%
- **Test Speed:** 0–50 mm/min
- **Maximum Tensile Space:** 1000 mm
- **Compression Space:** 602 mm
- **Piston Stroke:** 150 mm
- **Workpiece Diameter:** Up to 2400 mm
- **Power Supply:** AC 220V / 380V
- **Control System:** Manual control with open test procedures
- **Safety Protection:** Overload and stroke protection systems
- **Packaging:** Wooden case
- **Origin:** China
**Key Components:**
- **Host Design:** Oil cylinder mounted underneath, with stretching space at the top and compression space between the work table and crosshead.
- **Transmission System:** Motor-driven reducer with chain and screw mechanisms for precise adjustment of test spaces.
- **Hydraulic System:** Includes oil pump, filter, valve, and return pipe system for smooth operation.
- **Testing Fixtures:** Equipped with a stretch fixture and automatic clamping system for efficient sample handling.
- **Software Support:** Customizable test parameters, report formats, and multi-sample printing options.
**Technical Specifications:**
| Parameter | Value |
|----------|-------|
| Max Load | 1000 kN |
| Test Force Range | 50–1000 kN |
| Force Accuracy | ≤±1% of reading |
| Displacement Resolution | 0.01 mm |
| Deformation Accuracy | 0.01 mm |
| Maximum Tensile Space | 1000 mm |
| Compression Space | 602 mm |
| Piston Speed | 50 mm/min |
| Clamping Method | Automatic |
| Host Dimensions | 720×580×2350 mm (standard) |
| Weight | 2600 kg (standard) |
Whether you're conducting tensile, compression, shear, or bending tests, the GW-111D provides reliable performance and high precision. Its user-friendly interface, robust construction, and advanced safety features make it an essential tool for any laboratory or production facility. Perfect for both routine testing and complex material analysis, this machine ensures accurate and consistent results every time.