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Universal Tensile Tester
STR-S
Focusing on packaging and material testing technology, we are committed to quality control in industries such as healthcare, pharmaceuticals, food, packaging, textiles, and new materials. Our products are widely used in enterprises, testing institutions, universities, and research institutes.
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- Commodity name: Universal Tensile Tester
STR-S
Door‑Type Universal Testing Machine (10 kN – 100 kN)
Functions：
The LabStone Door‑Type Universal Testing Machine is engineered for high‑capacity mechanical property testing of a wide range of materials. It performs:Tensile / Tension Testing – measure ultimate strength, yield point, elongation.Compression Testing – evaluate crushing resistance and deformation.Bending / Flexure Testing – determine flexural modulus and break strength.Ideal for metals, wires, cables, plastics, rubber, composites, building materials, and finished components.Working Principle
The instrument adopts a closed‑loop servo control system driven by a high‑precision servo motor. A ball‑screw transmission converts rotary motion into smooth vertical displacement. A high‑accuracy load cell continuously monitors the applied force, while an optical encoder tracks displacement. The embedded microprocessor adjusts the motor speed in real time to maintain the programmed test profile, ensuring balanced force application and accurate data acquisition.Key Features
- Door‑Type Dual‑Column Frame: Massive rigid structure ensures force balance, eliminates side loads, and provides a large test space (400 mm clearance);
- Precision Servo Motor Drive:Closed‑loop control delivers exceptional speed stability, especially at very low speeds (1 mm/min);
- Multi‑Stage Safety Protection:Automatic stop on specimen break, overload, and limit switch activation – protects both operator and machine;
- Real‑Time Dual Display:Simultaneously shows force and displacement on a color LCD; includes peak‑hold function for instant maximum value capture;
- Four Selectable Ranges:Switch between measurement ranges to maintain ≥1 % accuracy across light and heavy loads;
- Flexible Speed Control:Supports single‑point speed and stepless variable speed modes for diverse test protocols;
- Computer Control & Database:Operate via PC with professional software; built‑in database stores all test records; generates customizable, publication‑quality reports.
Technical Specifications
Available Capacities: 10 kN / 50 kN / 100 kN (select at order)
Accuracy Class: ±1 % (optionally ±0.5 % with upgraded load cell)
Test Speed Range: 1 – 50 mm/min (stepless)
Crosshead Travel: 400 mm
Frame Type: Door‑type (dual‑column, floor‑standing)
Display: Color LCD (local) + PC software (remote)
Drive System: Precision servo motor + ball screw
Control Modes: Stand‑alone or computer‑controlled
Overall Dimensions: 450 × 260 × 1360 mm (L×B×H)
Net Weight: 150 kg
Power Supply: AC 220/110V ±10 %, 50/60 Hz, 1500 W
Standard Fixture: One set of tensile grips (includes upper and lower jaws)Application Industries & Scenarios
1. Metal & Wire Industry
Steel wire & cable tensile strength and elongation.Reinforcing bars yield and ultimate strength.Fasteners (bolts, screws) pull‑out and shear testing.2. Plastics & Rubber
PVC pipes crush resistance.Rubber seals compression set.Films & sheets tensile and tear (with appropriate grips).3. Building & Construction
Geotextiles tensile properties.Concrete reinforcement meshes pull testing.Wood & composites bending strength.4. Automotive & Aerospace
Seat belts & webbing tensile validation.Hoses & tubing burst and compression.Interior trims peel and pull tests.5. Medical Devices
Sutures tensile strength.Catheters burst pressure and tensile.Orthopedic implants static compression.6. Third‑Party Testing & R&D
CNAS/CMA compliant mechanical testing.University labs for material science research.New material development (composites, bio‑plastics).Frequently Asked Questions (FAQ)
Q1: What is the difference between a “door‑type” and a “single‑column” tester?A: A single‑column (desktop) tester is compact and suited for light loads (usually ≤5 kN). A door‑type (dual‑column) machine offers a much stiffer frame, higher capacity (10–100 kN), and a larger test space, making it ideal for metals, wires, and bulky specimens.Q2: Can this machine perform compression tests as well as tension?A: Yes. The machine is a true universal testing machine (UTM). With the standard tensile grips you perform pull tests; add the optional compression plates to run crush or compression tests.Q3: Is the speed really stepless from 1 mm/min to 50 mm/min?A: Absolutely. The servo motor provides infinitely variable speed within that range. You can set a constant speed (e.g., 10 mm/min) or program step changes for complex test profiles.Q4: How accurate is the force measurement?A: The standard configuration delivers ±1 % accuracy across four selectable ranges. For stricter requirements, an optional load cell upgrades accuracy to ±0.5 %, complying with ISO 7500‑1 Grade 0.5.Q5: Do I need a computer to run tests?A: Not necessarily. The built‑in color LCD and local controls allow fully autonomous operation. However, for advanced data analysis, curve plotting, and database management, install the optional PC software.Q6: What standards does this machine comply with?A: The machine itself is designed to meet ISO 7500‑1 and ASTM E4 for force verification. When equipped with the proper fixtures, it can perform tests according to ISO 6892, ASTM D638, ISO 179, and many others.Q7: Can I test a metal wire with a diameter of 0.5 mm?A: Yes, but you will need appropriate small‑jaw grips (optional). The standard tensile fixture is designed for typical specimens; for very thin wires we recommend custom vee‑groove jaws to prevent slippage. -
Function：
Mechanical properties test of various materials: tension, compression, bending.
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Characteristics:
- Door type, large range, keep force balance；
- Precision servo motor closed-loop drive control, high control precision, balanced and accurate operation.
- A variety of automatic safety protection, include break stop, overload stop, and limit stop；
- Various speed regulation modes - single point speed regulation and step-less speed regulation which provide good low-speed performance.
- The test force and displacement are displayed at the same time. With test force peak holding function.
- Four test range, The measurement accuracy is not less than 1%；
- Can be controlled by a computer, professional software is provided.
- Professional database, exquisite Report。
- Door type, large range, keep force balance；
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Specification:
- Range: 10 KN；50 KN；100 KN；
- Precision: ±1%； ±0.5%；
- Test speed:1~50 mm/min ；
- Test distance:400 mm；
- Size:450 mm×260 mm×1360 mm（L×B×H）；
- Net weight:150 Kg；
- Power supply AC 220/110V±10％ 50/60Hz；1500W；
- Fixture configuration: one set of the tensile test fixture.
- Range: 10 KN；50 KN；100 KN；
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Guangzhou Labstone Technology Co., Ltd
Add: Rm601, bldg A1, No. 2-6, Jinbao Rd, Baiyunhu Subdist., Baiyun District, Guangzhou,510430, Guangdong Province, P.R.China
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