Sinotest - Mechanical Lever Action Wedge Grip for Material Testing

• After-sales Service: Yes
• Warranty: 12 Months
• Max Diameter of Workpiece: <500mm
• Mass Scope of Workpiece: <900kg
• Type: Universal Testing Machine
• Maxcapacity: <1000KN
• Model NO.: JJ. 001
• Accuracy Grade: 0.5
• Load Way: Electronic Load
• Loading Method: Static Load
• Display: Digital
• Control: Computer Control
• Weight: 0-100Kg
• Power Source: -
• Oil Cylinder Position: None
• Transport Package: Standard Export Packaging
• Trademark: SINOTEST
• Origin: China

Product Description

Introduction:
Application of Grips and Fixtures
Grips and fixtures are key components for material testing. If you use the wrong grips and fixtures, it may affect the test results. SINOTEST provides various grips and fixtures. This catalog includes common products that are compatible with samples defined by commonly used testing standards (such as ASTM, ISO, DN, GB, BS, JIS, GOST, etc.).

Product Compatibility
This scissor action grip can be directly used for DF series Universal Testing Machine. If there are special requirements, you will need grip adapters to achieve your targets.


Selection of Grips and Fixtures
Selecting grips and fixtures are very complex, but the main focus is on the following three aspects:

1. Test load

It is recommended that the grips be subjected to a force greater than 1.25 times the expected maximum test load, which means that the grips can be operated at 80% of its capacity. The capacity of the load cell should match that of the grip (i.e. a 50 kN grip should use a load cell with a rated value of 50 kN). This can effectively ensure the accuracy of the results and a long-lasting service life.

2. Test standard

Test standards define sample size and shape. Usually, various grips & fixtures can be selected. If you are unsure, please provide specific test standard code.
3. Specimen and test method
Except sample size and shape, surface texture is also an important factor to consider when selecting fixtures. In a tensile test, improper grip selection often leads to fixture sliding, premature damage, and rupture. To help determine the correct fixture, please send us sample details and test methods.

Mechanical Lever Action Grip
The mechanical lever action grip produced by SINOTEST is operated manually, which is simple, convenient, and cost-effective. The clamping force increases with the increase of the test force. The grips adopt a wedge-shaped handle type structure, which allows single hand operation to achieve loosening and clamping action. The operation is convenient and the clamping range is wide. The replacement of clamping blocks is very convenient. You can adjust the clamping force manually.

Standards                                                                                                                                                                                 
GB/T 228.1-2021   Metallic materials -- Tensile testing -- Part 1: Method of test at room temperature.
ASTM E8-2016a   Standard Test Methods For Tension Testing Of Metallic Materials.
ISO 6892-1-2016   Metallic materials -- Tensile testing -- Part 1: Method of test at room temperature.
BS EN 10002-1    Metallic materials - Tensile testing. Method of test at ambient temperature.
JIS Z 2241-2011   Metallic materials -- Tensile testing -- Method of test at room temperature.

Features
1. It only needs one handed operation which can improve clamping efficiency;
2. It is suitable for clamping soft metals (≤ 35HRC), plastics, composite materials, and other materials;
3. The clamping force increases with the increase of tensile force on the specimen to prevent slipping;
4. The separation design between the clamp block and the clamp body enables quick replacement of the blocks, saving your time and effort.

Grip specification

Model	Rated load	Flat block	File cut block(optional)	V block	Temp.	Size(H*W*D) (mm)	Weight /piece
JJ.001-504	50kN	0~24mm	0~9mm	φ6~φ34mm	RT	230×195×100	20kg
JJ.001-105	100kN	0~24mm	0~9mm	φ6~φ34mm	RT	230×195×100	20kg
JJ.001-205	200kN	0~28mm	0~12mm	φ6~φ30mm	RT	316×295×142	40kg
JJ.001-305	300kN	0~28mm	0~12mm	φ6~φ30mm	RT	316×295×142	40kg